Edgar Filing: ZIONS BANCORPORATION /UT/

ZION-2012.09.30-10Qb

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 10-Q



ý	QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the quarterly period ended September 30, 2012



¨	TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the transition period from to

COMMISSION FILE NUMBER 001-12307

ZIONS BANCORPORATION

(Exact name of registrant as specified in its charter)



UTAH	87-0227400
(State or other jurisdiction of incorporation or organization)	(I.R.S. Employer Identification No.)

ONE SOUTH MAIN, 15^TH FLOOR SALT LAKE CITY, UTAH	84133
(Address of principal executive offices)	(Zip Code)

Registrant’s telephone number, including area code: (801) 524-4787

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. Yes ý No ¨

Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files). Yes ý No ¨

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, or a smaller reporting company. See the definitions of “large accelerated filer,” “accelerated filer” and “smaller reporting company” in Rule 12b-2 of the Exchange Act.



Large accelerated filer	ý	Accelerated filer	¨

Non-accelerated filer	¨	Smaller reporting company	¨

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act). Yes ¨ No ý

Indicate the number of shares outstanding of each of the issuer’s classes of common stock, as of the latest practicable date.



Common Stock, without par value, outstanding at October 31, 2012	184,169,076 shares

Table of Contents

ZIONS BANCORPORATION AND SUBSIDIARIES

INDEX




		Page
PART I. FINANCIAL INFORMATION

ITEM 1.	Financial Statements (Unaudited)

	Consolidated Balance Sheets	3
	Consolidated Statements of Income	4
	Consolidated Statements of Comprehensive Income	5
	Consolidated Statements of Changes in Shareholders’ Equity	6
	Consolidated Statements of Cash Flows	7
	Notes to Consolidated Financial Statements	8

ITEM 2.	Management’s Discussion and Analysis of Financial Condition and Results of Operations	59

ITEM 3.	Quantitative and Qualitative Disclosures About Market Risk	99

ITEM 4.	Controls and Procedures	99

PART II. OTHER INFORMATION

ITEM 1.	Legal Proceedings	99

ITEM 1A.	Risk Factors	99

ITEM 2.	Unregistered Sales of Equity Securities and Use of Proceeds	99

ITEM 6.	Exhibits	100

SIGNATURES		102

Table of Contents

PART I. FINANCIAL INFORMATION

ITEM 1. FINANCIAL STATEMENTS (Unaudited)

ZIONS BANCORPORATION AND SUBSIDIARIES CONSOLIDATED BALANCE SHEETS

(In thousands, except share amounts)	September 30, 2012			December 31, 2011
	(Unaudited)
ASSETS
Cash and due from banks	$	1,060,918		$	1,224,350
Money market investments:
Interest-bearing deposits	5,519,463			7,020,895
Federal funds sold and security resell agreements	1,960,294			102,159
Investment securities:
Held-to-maturity, at adjusted cost (approximate fair value $655,768 and $729,974)	740,738			807,804
Available-for-sale, at fair value	3,127,192			3,230,795
Trading account, at fair value	13,963			40,273
	3,881,893			4,078,872
Loans held for sale	220,240			201,590
Loans, net of unearned income and fees:
Loans and leases	36,582,253			36,393,782
FDIC-supported loans	588,566			750,870
	37,170,819			37,144,652
Less allowance for loan losses	925,341			1,049,958
Loans, net of allowance	36,245,478			36,094,694
Other noninterest-bearing investments	874,903			865,231
Premises and equipment, net	709,188			719,276
Goodwill	1,015,129			1,015,129
Core deposit and other intangibles	55,034			67,830
Other real estate owned	118,190			153,178
Other assets	1,426,271			1,605,905
	$	53,087,001		$	53,149,109
LIABILITIES AND SHAREHOLDERS’ EQUITY
Deposits:
Noninterest-bearing demand	$	17,295,911		$	16,110,857
Interest-bearing:
Savings and NOW	7,685,192			7,159,101
Money market	14,284,870			14,616,740
Time	3,107,815			3,413,550
Foreign	1,398,749			1,575,361
	43,772,537			42,875,609
Securities sold, not yet purchased	21,708			44,486
Federal funds purchased and security repurchase agreements	451,214			608,098
Other short-term borrowings	6,608			70,273
Long-term debt	2,326,659			1,954,462
Reserve for unfunded lending commitments	105,850			102,422
Other liabilities	484,170			510,531
Total liabilities	47,168,746			46,165,881
Shareholders’ equity:
Preferred stock, without par value, authorized 4,400,000 shares	1,123,377			2,377,560
Common stock, without par value; authorized 350,000,000 shares; issued and outstanding 184,156,402 and 184,135,388 shares	4,162,001			4,163,242
Retained earnings	1,170,477			1,036,590
Accumulated other comprehensive income (loss)	(534,738		)	(592,084		)
Controlling interest shareholders’ equity	5,921,117			6,985,308
Noncontrolling interests	(2,862		)	(2,080		)
Total shareholders’ equity	5,918,255			6,983,228
	$	53,087,001		$	53,149,109

See accompanying notes to consolidated financial statements.

Table of Contents

ZIONS BANCORPORATION AND SUBSIDIARIES CONSOLIDATED STATEMENTS OF INCOME (Unaudited)

(In thousands, except per share amounts)	Three Months Ended September 30,						Nine Months Ended September 30,
	2012			2011			2012			2011
Interest income:
Interest and fees on loans	$	479,199		$	520,133		$	1,444,383		$	1,562,031
Interest on money market investments	5,349			3,482			15,076			9,524
Interest on securities:
Held-to-maturity	8,337			8,937			26,621			26,610
Available-for-sale	22,042			21,382			70,290			65,837
Trading account	110			462			596			1,452
Total interest income	515,037			554,396			1,556,966			1,665,454
Interest expense:
Interest on deposits	19,049			31,093			63,285			101,834
Interest on short-term borrowings	193			1,501			1,228			5,464
Interest on long-term debt	51,597			51,207			173,969			247,533
Total interest expense	70,839			83,801			238,482			354,831
Net interest income	444,198			470,595			1,318,484			1,310,623
Provision for loan losses	(1,889		)	14,553			24,628			75,883
Net interest income after provision for loan losses	446,087			456,042			1,293,856			1,234,740
Noninterest income:
Service charges and fees on deposit accounts	44,951			44,154			131,909			131,562
Other service charges, commissions and fees	38,642			45,308			111,422			130,951
Trust and wealth management income	6,521			6,269			20,952			20,202
Capital markets and foreign exchange	6,026			7,729			19,102			23,301
Dividends and other investment income	11,686			9,356			42,708			34,623
Loan sales and servicing income	10,695			6,165			29,334			22,014
Fair value and nonhedge derivative loss	(5,820		)	(5,718		)	(17,004		)	(303		)
Equity securities gains, net	2,683			5,289			11,935			4,550
Fixed income securities gains, net	3,046			13,035			9,285			10,580
Impairment losses on investment securities:
Impairment losses on investment securities	(3,876		)	(55,530		)	(46,175		)	(64,974		)
Noncredit-related losses on securities not expected to be sold (recognized in other comprehensive income)	1,140			42,196			25,922			43,377
Net impairment losses on investment securities	(2,736		)	(13,334		)	(20,253		)	(21,597		)
Other	3,495			2,789			9,820			27,651
Total noninterest income	119,189			121,042			349,210			383,534
Noninterest expense:
Salaries and employee benefits	220,223			216,855			665,622			654,003
Occupancy, net	28,601			29,040			84,721			84,638
Furniture and equipment	27,122			26,852			81,216			78,667
Other real estate expense	207			20,564			14,457			62,634
Credit-related expense	13,316			15,379			39,216			47,416
Provision for unfunded lending commitments	2,264			(2,202		)	3,428			(13,646		)
Legal and professional services	12,749			8,897			36,792			24,018
Advertising	7,326			6,511			19,751			19,384
FDIC premiums	11,278			12,573			32,641			51,906
Amortization of core deposit and other intangibles	4,241			4,773			12,794			15,329
Other	67,648			69,776			198,365			209,300
Total noninterest expense	394,975			409,018			1,189,003			1,233,649
Income before income taxes	170,301			168,066			454,063			384,625
Income taxes	60,704			59,348			163,599			150,706
Net income	109,597			108,718			290,464			233,919
Net loss applicable to noncontrolling interests	(254		)	(375		)	(800		)	(866		)
Net income applicable to controlling interest	109,851			109,093			291,264			234,785
Preferred stock dividends	(47,529		)	(43,928		)	(148,238		)	(125,815		)
Net earnings applicable to common shareholders	$	62,322		$	65,165		$	143,026		$	108,970
Weighted average common shares outstanding during the period:
Basic shares	183,237			182,676			183,008			182,289
Diluted shares	183,383			183,858			183,162			182,531
Net earnings per common share:
Basic	$	0.34		$	0.35		$	0.77		$	0.59
Diluted	0.34			0.35			0.77			0.59

See accompanying notes to consolidated financial statements.

Table of Contents

ZIONS BANCORPORATION AND SUBSIDIARIES CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Unaudited)

(In thousands)	Three Months Ended September 30,						Nine Months Ended September 30,
	2012			2011			2012			2011
Net income	$	109,597		$	108,718		$	290,464		$	233,919
Other comprehensive income (loss), net of tax:
Net realized and unrealized holding gains (losses) on investments	43,484			(54,049		)	72,529			(90,109		)
Reclassification for net losses (gains) on investments included in earnings	(191		)	(405		)	6,428			6,185
Noncredit-related impairment losses on securities not expected to be sold	(703		)	(25,589		)	(16,006		)	(26,318		)
Accretion of securities with noncredit-related impairment losses not expected to be sold	192			32			724			131
Net unrealized losses on derivative instruments	(1,373		)	(4,332		)	(6,329		)	(17,427		)
Other comprehensive income (loss)	41,409			(84,343		)	57,346			(127,538		)
Comprehensive income	151,006			24,375			347,810			106,381
Comprehensive loss applicable to noncontrolling interests	(254		)	(375		)	(800		)	(866		)
Comprehensive income applicable to controlling interest	$	151,260		$	24,750		$	348,610		$	107,247

See accompanying notes to consolidated financial statements.

Table of Contents

ZIONS BANCORPORATION AND SUBSIDIARIES CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS’ EQUITY (Unaudited)

(In thousands, except share and per share amounts)	Preferred stock			Common stock				Retained earnings			Accumulated other comprehensive income (loss)				Noncontrolling interests				Total shareholders’ equity
(In thousands, except share and per share amounts)	Preferred stock			Shares	Amount			Retained earnings			Accumulated other comprehensive income (loss)				Noncontrolling interests				Total shareholders’ equity
Balance at December 31, 2011	$	2,377,560		184,135,388	$	4,163,242		$	1,036,590			$	(592,084	)		$	(2,080	)	$	6,983,228
Net income (loss) for the period								291,264								(800		)	290,464
Other comprehensive income												57,346							57,346
Issuance of preferred stock	143,750				(2,408		)												141,342
Preferred stock redemption	(1,542,500		)		3,830			(3,830		)									(1,542,500		)
Subordinated debt converted to preferred stock	99,871				(14,519		)												85,352
Net activity under employee plans and related tax benefits				21,014	11,856														11,856
Dividends on preferred stock	44,696							(148,238		)									(103,542		)
Dividends on common stock, $0.03 per share								(5,546		)									(5,546		)
Change in deferred compensation								237											237
Other changes in noncontrolling interests																18			18
Balance at September 30, 2012	$	1,123,377		184,156,402	$	4,162,001		$	1,170,477			$	(534,738	)		$	(2,862	)	$	5,918,255

Balance at December 31, 2010	$	2,056,672		182,784,086	$	4,163,619		$	889,284			$	(461,296	)		$	(1,065	)	$	6,647,214
Net income (loss) for the period								234,785								(866		)	233,919
Other comprehensive loss												(127,538		)					(127,538		)
Subordinated debt converted to preferred stock	281,759				(40,607		)												241,152
Issuance of common stock				1,067,540	25,048														25,048
Net activity under employee plans and related tax benefits				443,156	12,637														12,637
Dividends on preferred stock	16,092							(125,815		)									(109,723		)
Dividends on common stock, $0.03 per share								(5,478		)									(5,478		)
Change in deferred compensation								1,604											1,604
Other changes in noncontrolling interests																82			82
Balance at September 30, 2011	$	2,354,523		184,294,782	$	4,160,697		$	994,380			$	(588,834	)		$	(1,849	)	$	6,918,917

See accompanying notes to consolidated financial statements.

Table of Contents

ZIONS BANCORPORATION AND SUBSIDIARIES CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited)

(In thousands)	Three Months Ended September 30,						Nine Months Ended September 30,
	2012			2011			2012			2011
CASH FLOWS FROM OPERATING ACTIVITIES
Net income for the period	$	109,597		$	108,718		$	290,464		$	233,919
Adjustments to reconcile net income to net cash provided by operating activities:
Net impairment losses on investment securities	2,736			13,334			20,253			21,597
Provision for credit losses	375			12,351			28,056			62,237
Depreciation and amortization	47,810			52,288			167,119			247,884
Deferred income tax expense	6,458			41,563			25,513			129,266
Net write-downs of and gains/losses from sales of other real estate owned	309			15,550			13,650			49,663
Net decrease (increase) in trading securities	6,576			1,370			26,310			(1,115		)
Net decrease (increase) in loans held for sale	(77,225		)	21,237			(5,848		)	90,749
Change in other liabilities	(10,692		)	33,697			(41,222		)	26,801
Change in other assets	21,314			(84,465		)	110,137			(24,977		)
Other, net	(13,692		)	261			(32,064		)	(4,673		)
Net cash provided by operating activities	93,566			215,904			602,368			831,351

CASH FLOWS FROM INVESTING ACTIVITIES
Net decrease (increase) in money market investments	490,947			(235,048		)	(356,703		)	(576,859		)
Proceeds from maturities and paydowns of investment securities held-to-maturity	37,016			30,080			91,701			72,111
Purchases of investment securities held-to-maturity	(4,450		)	(9,667		)	(38,188		)	(36,476		)
Proceeds from sales, maturities, and paydowns of investment securities available-for-sale	187,180			507,676			863,354			1,087,345
Purchases of investment securities available-for-sale	(73,636		)	(523,772		)	(667,566		)	(1,042,235		)
Proceeds from sales of loans and leases	24,665			8,836			64,452			15,026
Net loan and lease originations	(397,845		)	(107,759		)	(379,615		)	(633,630		)
Net decrease in other noninterest-bearing investments	2,549			2,372			14,723			12,690
Net purchases of premises and equipment	(15,145		)	(22,749		)	(47,962		)	(62,229		)
Proceeds from sales of other real estate owned	59,876			89,245			157,760			276,122
Net cash received from (paid for) branch sales	2,667			—			(19,901		)	—
Net cash provided by (used in) investing activities	313,824			(260,786		)	(317,945		)	(888,135		)

CASH FLOWS FROM FINANCING ACTIVITIES
Net increase in deposits	612,290			171,934			926,287			428,209
Net change in short-term funds borrowed	(392,564		)	(34,498		)	(243,356		)	(145,081		)
Proceeds from issuance of long-term debt	49,082			23,527			648,468			53,777
Repayments of long-term debt	(7,604		)	(8,191		)	(262,783		)	(8,522		)
Cash paid for preferred stock redemption	(700,000		)	—			(1,542,500		)	—
Proceeds from issuance of common stock and preferred stock	513			237			142,516			25,644
Dividends paid on common and preferred stock	(32,770		)	(40,297		)	(109,088		)	(115,201		)
Other, net	(92		)	(90		)	(7,399		)	(3,400		)
Net cash provided by (used in) financing activities	(471,145		)	112,622			(447,855		)	235,426
Net increase (decrease) in cash and due from banks	(63,755		)	67,740			(163,432		)	178,642
Cash and due from banks at beginning of period	1,124,673			1,035,028			1,224,350			924,126
Cash and due from banks at end of period	$	1,060,918		$	1,102,768		$	1,060,918		$	1,102,768

Cash paid for interest	$	65,384		$	71,220		$	172,712		$	213,540
Net cash paid for income taxes	67,772			—			127,456			428

See accompanying notes to consolidated financial statements.

Table of Contents

ZIONS BANCORPORATION AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

September 30, 2012


1.	BASIS OF PRESENTATION

The accompanying unaudited consolidated financial statements of Zions Bancorporation (“the Parent”) and its majority-owned subsidiaries (collectively “the Company,” “Zions,” “we,” “our,” “us”) have been prepared in accordance with U.S. generally accepted accounting principles (“GAAP”) for interim financial information and with the instructions to Form 10-Q and Article 10 of Regulation S-X. Accordingly, they do not include all of the information and footnotes required by GAAP for complete financial statements. In the opinion of management, all adjustments (consisting of normal recurring accruals) considered necessary for a fair presentation have been included. References to GAAP as promulgated by the Financial Accounting Standards Board (“FASB”) are made according to sections of the Accounting Standards Codification (“ASC”) and to Accounting Standards Updates (“ASU”). Certain prior period amounts have been reclassified to conform to the current period presentation.

Operating results for the three and nine months ended September 30, 2012 and 2011 are not necessarily indicative of the results that may be expected in future periods. The consolidated balance sheet at December 31, 2011 is from the audited financial statements at that date, but does not include all of the information and footnotes required by GAAP for complete financial statements. For further information, refer to the consolidated financial statements and footnotes thereto included in the Company’s 2011 Annual Report on Form 10-K.

The Company provides a full range of banking and related services through banking subsidiaries in ten Western and Southwestern states as follows: Zions First National Bank (“Zions Bank”), in Utah and Idaho; California Bank & Trust (“CB&T”); Amegy Corporation (“Amegy”) and its subsidiary, Amegy Bank, in Texas; National Bank of Arizona (“NBA”); Nevada State Bank (“NSB”); Vectra Bank Colorado (“Vectra”), in Colorado and New Mexico; The Commerce Bank of Washington (“TCBW”); and The Commerce Bank of Oregon (“TCBO”). The Parent also owns and operates certain nonbank subsidiaries that engage in wealth management and other financial related services.


2.	CERTAIN RECENT ACCOUNTING PRONOUNCEMENTS

In December 2011, the FASB issued ASU 2011-11, Disclosures about Offsetting Assets and Liabilities. This new guidance under ASC 210, Balance Sheet, provides convergence to International Financial Reporting Standards (“IFRS”) to provide common disclosure requirements for the offsetting of financial instruments. Existing GAAP guidance allowing balance sheet offsetting, including industry-specific guidance, remains unchanged. The new guidance is effective on a retrospective basis, including all prior periods presented, for interim and annual periods beginning on or after January 1, 2013. Management currently expects that this new guidance will not significantly impact the disclosures in the Company’s financial statements.

In June 2011, the FASB issued ASU 2011-05, Presentation of Comprehensive Income. This new accounting guidance under ASC 220, Comprehensive Income, provides convergence to IFRS and no longer allows presentation of the components of other comprehensive income (“OCI”) in the statement of changes in shareholders’ equity. We adopted this new guidance effective January 1, 2012 as required and elected to present the components of OCI in a separate statement consecutive to the statement of income. There was otherwise no effect on the accompanying financial statements.

In December 2011, the FASB issued ASU 2011-12, Deferral of the Effective Date for Amendments to the Presentation of Reclassifications of Items Out of Accumulated Other Comprehensive Income in Accounting Standards Update No. 2011-05. This ASU under ASC 220 defers the requirements of ASU 2011-05 to display reclassification adjustments for each component of OCI in both the statement of income and the statement of comprehensive income and to present the components of OCI in interim financial statements. During 2012, the FASB has indicated it will reconsider the reclassification requirements and the timing of their implementation.

In April 2011, the FASB issued ASU 2011-03, Reconsideration of Effective Control for Repurchase Agreements. The primary feature of this new accounting guidance under ASC 860, Transfers and Servicing, relates to the criteria that determine whether a sale or a secured borrowing occurred based on the transferor’s maintenance of effective control over

Table of Contents

ZIONS BANCORPORATION AND SUBSIDIARIES

the transferred financial assets. The new guidance focuses on the transferor’s contractual rights and obligations with respect to the transferred financial assets and not on the transferor’s ability to perform under those rights and obligations. Accordingly, the collateral maintenance requirement is eliminated by ASU 2011-3 from the assessment of effective control. We adopted this new guidance effective January 1, 2012 as required. There was no material effect on the accompanying financial statements.

Additional recent accounting pronouncements are discussed where applicable in the Notes to Consolidated Financial Statements.


3.	SUPPLEMENTAL CASH FLOW INFORMATION

Noncash activities are summarized as follows:

	Three Months Ended September 30,				Nine Months Ended September 30,
(In thousands)	2012		2011		2012		2011
Loans transferred to other real estate owned	$	37,140	$	75,769	$	141,439	$	250,427
Beneficial conversion feature transferred from common stock to preferred stock as a result of subordinated debt conversions	917		2,863		14,519		40,607
Subordinated debt converted to preferred stock	5,386		16,834		85,352		241,152

Table of Contents

ZIONS BANCORPORATION AND SUBSIDIARIES


4.	INVESTMENT SECURITIES

Investment securities are summarized below. Note 9 discusses the process to estimate fair value for investment securities.



	September 30, 2012
			Recognized in OCI ¹						Not recognized in OCI
(In thousands)	Amortized cost		Gross unrealized gains		Gross unrealized losses		Carrying value		Gross unrealized gains		Gross unrealized losses		Estimated fair value
Held-to-maturity
Municipal securities	$	511,354	$	—	$	—	$	511,354	$	13,674	$	922	$	524,106
Asset-backed securities:
Trust preferred securities – banks and insurance	262,078		—		52,997		209,081		231		90,575		118,737
Other	23,017		—		2,814		20,203		235		7,613		12,825
Other debt securities	100		—		—		100		—		—		100
	$	796,549	$	—	$	55,811	$	740,738	$	14,140	$	99,110	$	655,768
Available-for-sale
U.S. Treasury securities	$	4,405	$	237	$	—	$	4,642					$	4,642
U.S. Government agencies and corporations:
Agency securities	112,747		4,629		92		117,284						117,284
Agency guaranteed mortgage-backed securities	443,714		21,907		8		465,613						465,613
Small Business Administration loan-backed securities	1,152,178		24,107		1,003		1,175,282						1,175,282
Municipal securities	112,467		3,355		2,175		113,647						113,647
Asset-backed securities:
Trust preferred securities – banks and insurance	1,740,291		26,059		801,062		965,288						965,288
Trust preferred securities – real estate investment trusts	40,422		—		25,015		15,407						15,407
Auction rate securities	7,100		92		79		7,113						7,113
Other	51,519		838		6,982		45,375						45,375
	3,664,843		81,224		836,416		2,909,651						2,909,651
Mutual funds and other	216,721		820		—		217,541						217,541
	$	3,881,564	$	82,044	$	836,416	$	3,127,192					$	3,127,192

Table of Contents

ZIONS BANCORPORATION AND SUBSIDIARIES



	December 31, 2011
			Recognized in OCI ¹						Not recognized in OCI
(In thousands)	Amortized cost		Gross unrealized gains		Gross unrealized losses		Carrying value		Gross unrealized gains		Gross unrealized losses		Estimated fair value
Held-to-maturity
Municipal securities	$	564,468	$	—	$	—	$	564,468	$	8,807	$	1,083	$	572,192
Asset-backed securities:
Trust preferred securities – banks and insurance	262,853		—		40,546		222,307		207		78,191		144,323
Other	24,310		—		3,381		20,929		303		7,868		13,364
Other debt securities	100		—		—		100		—		5		95
	$	851,731	$	—	$	43,927	$	807,804	$	9,317	$	87,147	$	729,974
Available-for-sale
U.S. Treasury securities	$	4,330	$	304	$	—	$	4,634					$	4,634
U.S. Government agencies and corporations:
Agency securities	153,179		5,423		122		158,480						158,480
Agency guaranteed mortgage-backed securities	535,228		18,211		102		553,337						553,337
Small Business Administration loan-backed securities	1,153,039		12,119		4,496		1,160,662						1,160,662
Municipal securities	120,677		3,191		1,700		122,168						122,168
Asset-backed securities:
Trust preferred securities – banks and insurance	1,794,427		15,792		880,509		929,710						929,710
Trust preferred securities – real estate investment trusts	40,259		—		21,614		18,645						18,645
Auction rate securities	71,338		164		1,482		70,020						70,020
Other	64,646		1,028		15,302		50,372						50,372
	3,937,123		56,232		925,327		3,068,028						3,068,028
Mutual funds and other	162,606		167		6		162,767						162,767
	$	4,099,729	$	56,399	$	925,333	$	3,230,795					$	3,230,795

¹The gross unrealized losses recognized in OCI on held-to-maturity (“HTM”) securities primarily resulted from a previous transfer of available-for-sale (“AFS”) securities to HTM.

The amortized cost and estimated fair value of investment debt securities are shown subsequently as of September 30, 2012 by expected maturity distribution for structured asset-backed collateralized debt obligations (“ABS CDOs”) and by contractual maturity distribution for other debt securities. Actual maturities may differ from expected or contractual maturities because borrowers may have the right to call or prepay obligations with or without call or prepayment penalties:



	Held-to-maturity				Available-for-sale
(In thousands)	Amortized cost		Estimated fair value		Amortized cost		Estimated fair value
Due in one year or less	$	49,885	$	50,155	$	450,217	$	416,979
Due after one year through five years	201,851		196,829		1,032,915		958,822
Due after five years through ten years	170,597		148,633		690,633		597,124
Due after ten years	374,216		260,151		1,491,078		936,726
	$	796,549	$	655,768	$	3,664,843	$	2,909,651

Table of Contents

ZIONS BANCORPORATION AND SUBSIDIARIES

The following is a summary of the amount of gross unrealized losses for debt securities and the estimated fair value by length of time the securities have been in an unrealized loss position:

	September 30, 2012
	Less than 12 months				12 months or more				Total
(In thousands)	Gross unrealized losses		Estimated fair value		Gross unrealized losses		Estimated fair value		Gross unrealized losses		Estimated fair value
Held-to-maturity
Municipal securities	$	875	$	22,211	$	47	$	4,979	$	922	$	27,190
Asset-backed securities:
Trust preferred securities – banks and insurance	—		—		143,572		118,439		143,572		118,439
Other	—		—		10,427		11,968		10,427		11,968
	$	875	$	22,211	$	154,046	$	135,386	$	154,921	$	157,597
Available-for-sale
U.S. Government agencies and corporations:
Agency securities	$	11	$	6,922	$	81	$	6,993	$	92	$	13,915
Agency guaranteed mortgage-backed securities	7		1,482		1		236		8		1,718
Small Business Administration loan-backed securities	194		42,067		809		72,357		1,003		114,424
Municipal securities	58		5,491		2,117		11,401		2,175		16,892
Asset-backed securities:
Trust preferred securities – banks and insurance	—		—		801,062		739,539		801,062		739,539
Trust preferred securities – real estate investment trusts	—		—		25,015		15,407		25,015		15,407
Auction rate securities	—		—		79		3,044		79		3,044
Other	112		24,888		6,870		15,337		6,982		40,225
	382		80,850		836,034		864,314		836,416		945,164
Mutual funds and other	—		—		—		—		—		—
	$	382	$	80,850	$	836,034	$	864,314	$	836,416	$	945,164

Table of Contents

ZIONS BANCORPORATION AND SUBSIDIARIES



	December 31, 2011
	Less than 12 months				12 months or more				Total
(In thousands)	Gross unrealized losses		Estimated fair value		Gross unrealized losses		Estimated fair value		Gross unrealized losses		Estimated fair value


Held-to-maturity
Municipal securities	$	415	$	10,855	$	668	$	22,188	$	1,083	$	33,043
Asset-backed securities:
Trust preferred securities – banks and insurance	—		—		118,737		144,053		118,737		144,053
Other	—		—		11,249		13,364		11,249		13,364
Other debt securities	5		95		—		—		5		95
	$	420	$	10,950	$	130,654	$	179,605	$	131,074	$	190,555
Available-for-sale
U.S. Government agencies and corporations:
Agency securities	$	60	$	13,308	$	62	$	3,880	$	122	$	17,188
Agency guaranteed mortgage-backed securities	102		52,267		—		—		102		52,267
Small Business Administration loan-backed securities	1,783		260,865		2,713		191,339		4,496		452,204
Municipal securities	1,305		15,011		395		4,023		1,700		19,034
Asset-backed securities:
Trust preferred securities – banks and insurance	—		—		880,509		695,365		880,509		695,365
Trust preferred securities – real estate investment trusts	—		—		21,614		18,645		21,614		18,645
Auction rate securities	158		27,998		1,324		34,115		1,482		62,113
Other	—		—		15,302		18,585		15,302		18,585
	3,408		369,449		921,919		965,952		925,327		1,335,401
Mutual funds and other	6		167		—		—		6		167
	$	3,414	$	369,616	$	921,919	$	965,952	$	925,333	$	1,335,568

At September 30, 2012 and December 31, 2011, respectively, 95 and 72 HTM and 296 and 525 AFS investment securities were in an unrealized loss position.

Other-Than-Temporary Impairment

We conduct a formal review of investment securities on a quarterly basis for the presence of other-than-temporary impairment (“OTTI”). We assess whether OTTI is present when the fair value of a debt security is less than its amortized cost basis at the balance sheet date. Under these circumstances, OTTI is considered to have occurred if (1) we intend to sell the security; (2) it is “more likely than not” we will be required to sell the security before recovery of its amortized cost basis; or (3) the present value of expected cash flows is not sufficient to recover the entire amortized cost basis.

Credit-related OTTI is recognized in earnings while noncredit-related OTTI on securities not expected to be sold is recognized in OCI. Noncredit-related OTTI is based on other factors, including illiquidity. Presentation of OTTI is made in the statement of income on a gross basis with an offset for the amount of OTTI recognized in OCI. For securities classified as HTM, the amount of noncredit-related OTTI recognized in OCI is accreted using the effective interest rate method to the credit-adjusted expected cash flow amounts of the securities over future periods.

Our 2011 Annual Report on Form 10-K describes in more detail our OTTI evaluation process. The following summarizes the conclusions from our OTTI evaluation for those security types that have significant gross unrealized losses at September 30, 2012:

OTTI – Municipal Securities

The HTM securities are purchased directly from municipalities and are generally not rated by a credit rating agency. The AFS securities are rated as investment grade by various credit rating agencies. Both the HTM and AFS securities are at fixed and variable rates with maturities from one to 25 years. Fair value changes of these securities are largely driven by interest rates. We perform credit quality reviews on these securities at each reporting period. Because the decline in fair

Table of Contents

ZIONS BANCORPORATION AND SUBSIDIARIES

value is not attributable to credit quality, no OTTI for these securities was recorded for the three months ended September 30, 2012.

OTTI – Asset-Backed Securities

Trust preferred securities – banks and insurance: These CDO securities are interests in variable rate pools of trust preferred securities related to banks and insurance companies (“collateral issuers”). They are rated by one or more Nationally Recognized Statistical Rating Organizations (“NRSROs”), which are rating agencies registered with the Securities and Exchange Commission (“SEC”). They were purchased generally at par. The primary drivers that have given rise to the unrealized losses on CDOs with bank and insurance collateral are listed below:

Market yield requirements for bank CDO securities remain very high. The financial crisis and economic downturn resulted in significant utilization of both the unique five-year deferral option each collateral issuer maintains during the life of the CDO, and the ability of junior CDO bonds to defer the payment of current interest. The resulting increase in the rate of return demanded by the market for trust preferred CDOs remains dramatically higher than the effective interest rates. All structured product fair values, including bank CDOs, deteriorated significantly during the crisis, generally reaching a low in mid-2009. Prices for some structured products, other than bank CDOs, have since rebounded as the crucial unknowns related to value became resolved and as trading increased in these securities. Unlike these other structured products, CDO tranches backed by bank trust preferred securities continue to be characterized by considerable uncertainty surrounding collateral behavior, specifically including, but not limited to, the future number, size and timing of bank failures, and of allowed deferrals and subsequent resumption of payment of contractual interest.

Structural features of the collateral make these CDO tranches difficult for market participants to model. The first feature unique to bank CDOs is the interest deferral feature previously noted. During the crisis starting in 2008, certain banks within our CDO pools have exercised this prerogative. The extent to which these deferrals are likely to either transition to default or, alternatively, come current prior to the five-year deadline is extremely difficult for market participants to assess. Our CDO pools include a bank which first exercised this deferral option as early as the second quarter of 2008. At September 30, 2012, 63 banks in our CDO pools had come current after a period of deferral, while 204 were deferring, but remained within the allowed deferral period.

A second structural feature that is difficult to model is the payment in kind (“PIK”) feature, which provides that upon reaching certain levels of collateral default or deferral, certain junior CDO tranches will not receive current interest but will instead have the interest amount that is unpaid capitalized or deferred. The cash flow that would otherwise be paid to the junior CDO securities and the income notes is instead used to pay down the principal balance of the most senior CDO securities. If the current market yield required by market participants equaled the effective interest rate of a security, a market participant should be indifferent between receiving current interest and capitalizing and compounding interest for later payment. However, given the difference between current market rates and effective interest rates of the securities, market participants are not indifferent. The delay in payment caused by PIKing results in lower security fair values even if PIKing is projected to be fully cured. This feature is difficult to model and assess. It increases the risk premium the market applies to these securities.

Ratings are generally below-investment-grade for even some of the most senior tranches. Ratings on a number of CDO tranches vary significantly among rating agencies. The presence of a below-investment-grade rating by even a single rating agency will severely limit the pool of buyers, which causes greater illiquidity and therefore most likely a higher implicit discount rate/lower price with regard to that CDO tranche.


4)	There is a lack of consistent disclosure by each CDO’s trustee of the identity of collateral issuers; in addition, complex structures make projecting tranche return profiles difficult for non-specialists in the product.


5)	At purchase, the expectation of cash flow variability was limited. As a result of the crisis, we have seen extreme variability of collateral performance both compared to expectations and between different pools.

Our ongoing review of these securities determined that OTTI should be recorded for the three months ended September 30, 2012.

Trust preferred securities – real estate investment trusts (“REITs”): These CDO securities are variable rate pools of trust preferred securities primarily related to REITs, and are rated by one or more NRSROs. They were purchased generally at par. Unrealized losses were caused mainly by severe deterioration in mortgage REITs and homebuilder

Table of Contents

ZIONS BANCORPORATION AND SUBSIDIARIES

credit in addition to the same factors previously discussed for banks and insurance CDOs. Based on our review, no OTTI for these securities was recorded for the three months ended September 30, 2012.

Other asset-backed securities: Most of these CDO securities were purchased in 2009 from Lockhart Funding LLC at their carrying values and then adjusted to fair value. Certain of these CDOs consist of ABS CDOs (also known as diversified structured finance CDOs). Unrealized losses since acquisition were caused mainly by deterioration in collateral quality and widening of credit spreads for asset backed securities. Based on our review, OTTI for one security in this asset group was recorded for the three months ended September 30, 2012.

OTTI – U.S. Government Agencies and Corporations

Small Business Administration (“SBA”) Loan-Backed Securities: These securities were generally purchased at premiums with maturities from five to 25 years and have principal cash flows guaranteed by the SBA. Because the decline in fair value is not attributable to credit quality, no OTTI for these securities was recorded for the three months ended September 30, 2012.

The following is a tabular rollforward of the total amount of credit-related OTTI, including amounts recognized in earnings:

(In thousands)	Three Months Ended September 30, 2012									Nine Months Ended September 30, 2012
	HTM			AFS			Total			HTM			AFS			Total
Balance of credit-related OTTI at beginning of period	$	(6,467	)	$	(315,183	)	$	(321,650	)	$	(6,126	)	$	(314,860	)	$	(320,986	)
Additions recognized in earnings during the period:
Credit-related OTTI not previously recognized ¹	—			—			—			(341		)	—			(341		)
Credit-related OTTI previously recognized when there is no intent to sell and no requirement to sell before recovery of amortized cost basis²	(657		)	(2,079		)	(2,736		)	(657		)	(19,255		)	(19,912		)
Subtotal of amounts recognized in earnings	(657		)	(2,079		)	(2,736		)	(998		)	(19,255		)	(20,253		)
Reductions for securities sold during the period				—			—						16,853			16,853
Balance of credit-related OTTI at end of period	$	(7,124	)	$	(317,262	)	$	(324,386	)	$	(7,124	)	$	(317,262	)	$	(324,386	)



(In thousands)	Three Months Ended September 30, 2011									Nine Months Ended September 30, 2011
	HTM			AFS			Total			HTM			AFS			Total
Balance of credit-related OTTI at beginning of period	$	(5,357	)	$	(290,209	)	$	(295,566	)	$	(5,357	)	$	(335,682	)	$	(341,039	)
Additions recognized in earnings during the period:
Credit-related OTTI not previously recognized ¹	(769		)	(3,007		)	(3,776		)	(769		)	(3,007		)	(3,776		)
Credit-related OTTI previously recognized when there is no intent to sell and no requirement to sell before recovery of amortized cost basis²	—			(9,558		)	(9,558		)	—			(17,821		)	(17,821		)
Subtotal of amounts recognized in earnings	(769		)	(12,565		)	(13,334		)	(769		)	(20,828		)	(21,597		)
Reductions for securities sold during the period				—			—						53,736			53,736
Balance of credit-related OTTI at end of period	$	(6,126	)	$	(302,774	)	$	(308,900	)	$	(6,126	)	$	(302,774	)	$	(308,900	)

¹Relates to securities not previously impaired.

²Relates to additional impairment on securities previously impaired.

To determine the credit component of OTTI for all security types, we utilize projected cash flows as the best estimate of fair value. These cash flows are credit adjusted using, among other things, assumptions for default probability assigned to each portion of performing collateral. The credit-adjusted cash flows are discounted at a security specific coupon rate to identify any OTTI, and then at a market rate for valuation purposes.

Table of Contents

ZIONS BANCORPORATION AND SUBSIDIARIES

For those securities with credit-related OTTI recognized in the statement of income, the amounts of pretax noncredit-related OTTI recognized in OCI were as follows:



(In thousands)	Three Months Ended September 30,				Nine Months Ended September 30,
	2012		2011		2012		2011
HTM	$	—	$	20,945	$	16,718	$	20,945
AFS	1,140		21,251		9,204		22,432
	$	1,140	$	42,196	$	25,922	$	43,377

During the three and nine months ended September 30, nontaxable interest income on securities was $4.2 million and $13.7 million in 2012, and $5.2 million and $16.4 million in 2011, respectively.

The following summarizes gains and losses, including OTTI, that were recognized in the statement of income:

		Three Months Ended										Nine Months Ended
		September 30, 2012					September 30, 2011					September 30, 2012					September 30, 2011
	(In thousands)	Gross gains		Gross losses			Gross gains		Gross losses			Gross gains		Gross losses			Gross gains		Gross losses
	(In thousands)	Gross gains		Gross losses			Gross gains		Gross losses			Gross gains		Gross losses			Gross gains		Gross losses
	Investment securities:
	Held-to-maturity	$	22	$	657		$	85	$	769		$	120	$	998		$	202	$	769
	Available-for-sale	3,026		2,081			12,950		12,565			14,955		25,045			20,532		30,982
	Other noninterest-bearing investments:
	Nonmarketable equity securities	3,230		547			5,482		193			22,951		11,016			6,550		2,000
		6,278		3,285			18,517		13,527			38,026		37,059			27,284		33,751
	Net gains (losses)			$	2,993				$	4,990				$	967				$	(6,467	)
	Statement of income information:
	Net impairment losses on investment securities			$	(2,736	)			$	(13,334	)			$	(20,253	)			$	(21,597	)
	Equity securities gains, net			2,683					5,289					11,935					4,550
	Fixed income securities gains, net			3,046					13,035					9,285					10,580
	Net gains (losses)			$	2,993				$	4,990				$	967				$	(6,467	)

Gains and losses on the sale of securities are recognized using the specific identification method and recorded in noninterest income.

Securities with a carrying value of $1.4 billion at September 30, 2012 and $1.5 billion at December 31, 2011 were pledged to secure public and trust deposits, advances, and for other purposes as required by law. Securities are also pledged as collateral for security repurchase agreements.

Table of Contents

ZIONS BANCORPORATION AND SUBSIDIARIES


5.	LOANS AND ALLOWANCE FOR CREDIT LOSSES

Loans and Loans Held for Sale

Loans are summarized as follows according to major portfolio segment and specific loan class:



(In thousands)	September 30, 2012		December 31, 2011
Loans held for sale	$	220,240	$	201,590
Commercial:
Commercial and industrial	$	10,748,266	$	10,334,858
Leasing	405,012		379,709
Owner occupied	7,669,218		8,158,556
Municipal	469,237		441,241
Total commercial	19,291,733		19,314,364
Commercial real estate:
Construction and land development	1,956,186		2,264,909
Term	8,139,546		7,883,434
Total commercial real estate	10,095,732		10,148,343
Consumer:
Home equity credit line	2,175,338		2,187,428
1-4 family residential	4,181,002		3,921,216
Construction and other consumer real estate	320,087		305,873
Bankcard and other revolving plans	294,827		291,018
Other	223,534		225,540
Total consumer	7,194,788		6,931,075
FDIC-supported loans	588,566		750,870
Total loans	$	37,170,819	$	37,144,652

FDIC-supported loans were acquired during 2009 and are indemnified by the Federal Deposit Insurance Corporation (“FDIC”) under loss sharing agreements. The FDIC-supported loan balances presented in the accompanying schedules include purchased credit-impaired loans accounted for at their carrying values rather than their outstanding balances. See subsequent discussion under Purchased Loans.

Loan balances are presented net of unearned income and fees, which amounted to $131.0 million at September 30, 2012 and $133.1 million at December 31, 2011.

Owner occupied and commercial real estate loans include unamortized premiums of approximately $61.4 million at September 30, 2012 and $73.4 million at December 31, 2011.

Municipal loans generally include loans to municipalities with the debt service being repaid from general funds or pledged revenues of the municipal entity, or to private commercial entities or 501(c)(3) not-for-profit entities utilizing a pass-through municipal entity to achieve favorable tax treatment.

Loans with a carrying value of approximately $20.1 billion at September 30, 2012 and $21.1 billion at December 31, 2011 have been made available for pledging at the Federal Reserve and various Federal Home Loan Banks as collateral for current and potential borrowings.

We sold loans totaling $369 million and $1,244 million for the three and nine months ended September 30, 2012, and $353 million and $1,202 million for the three and nine months ended September 30, 2011, respectively, that were previously classified as loans held for sale. Loans reclassified to loans held for sale primarily consist of conforming residential mortgages. Amounts added to loans held for sale during these periods were $452 million and $1,260 million for the three and nine months ended September 30, 2012 and $336 million and $1,124 million for the three and nine months ended September 30, 2011, respectively. Income from loans sold, excluding servicing, was $8.5 million and $22.4

Table of Contents

ZIONS BANCORPORATION AND SUBSIDIARIES

million for the three and nine months ended September 30, 2012 and $3.8 million and $13.9 million for the three and nine months ended September 30, 2011.

Allowance for Credit Losses

The allowance for credit losses (“ACL”) consists of the allowance for loan and lease losses (“ALLL,” also referred to as the allowance for loan losses) and the reserve for unfunded lending commitments (“RULC”).

Allowance for Loan and Lease Losses

The ALLL represents our estimate of probable and estimable losses inherent in the loan and lease portfolio as of the balance sheet date. Losses are charged to the ALLL when recognized. Generally, commercial loans are charged off or charged down at the point at which they are determined to be uncollectible in whole or in part, or when 180 days past due unless the loan is well secured and in the process of collection. Consumer loans are either charged off or charged down to net realizable value no later than the month in which they become 180 days past due. Closed-end loans that are not secured by residential real estate are either charged off or charged down to net realizable value no later than the month in which they become 120 days past due. We establish the amount of the ALLL by analyzing the portfolio at least quarterly, and we adjust the provision for loan losses so the ALLL is at an appropriate level at the balance sheet date.

We determine our ALLL as the best estimate within a range of estimated losses. The methodologies we use to estimate the ALLL depend upon the impairment status and portfolio segment of the loan. The methodology for impaired loans is discussed subsequently. For the commercial and commercial real estate segments, we use a comprehensive loan grading system to assign probability of default and loss given default grades to each loan. The credit quality indicators discussed subsequently are based on this grading system. Probability of default and loss given default grades are based on both financial and statistical models and loan officers’ judgment. We create groupings of these grades for each subsidiary bank and loan class and calculate historic loss rates using a loss migration analysis that attributes historic realized losses to historic loan grades over the most recent 60 months.

For the consumer loan segment, we use roll rate models to forecast probable inherent losses. Roll rate models measure the rate at which consumer loans migrate from one delinquency category to the next worse delinquency category, and eventually to loss. We estimate roll rates for consumer loans using recent delinquency and loss experience. These roll rates are then applied to current delinquency levels to estimate probable inherent losses.

For FDIC-supported loans purchased with evidence of credit deterioration, we determine the ALLL according to separate accounting guidance. The accounting for these loans, including the allowance calculation, is described in the Purchased Loans section following.

After applying historic loss experience, as described above, we review the quantitatively derived level of ALLL for each segment using qualitative criteria. We track various risk factors that influence our judgment regarding the level of the ALLL across the portfolio segments. Primary qualitative and environmental factors that may not be reflected in our quantitative models include:


•	Asset quality trends


•	Risk management and loan administration practices


•	Risk identification practices


•	Effect of changes in the nature and volume of the portfolio


•	Existence and effect of any portfolio concentrations


•	National economic and business conditions


•	Regional and local economic and business conditions


•	Data availability and applicability

We review changes in these factors to ensure that changes in the level of the ALLL are directionally consistent with changes in these factors. The magnitude of the impact of these factors on our qualitative assessment of the ALLL changes from quarter to quarter according to the extent these factors are already reflected in historic loss rates and according to the extent these factors diverge from one to another. We also consider the uncertainty inherent in the estimation process when evaluating the ALLL.

Table of Contents

ZIONS BANCORPORATION AND SUBSIDIARIES

Reserve for Unfunded Lending Commitments

We also estimate a reserve for potential losses associated with off-balance sheet commitments and standby letters of credit. We determine the RULC using the same procedures and methodologies that we use for the ALLL. The loss factors used in the RULC are the same as the loss factors used in the ALLL, and the qualitative adjustments used in the RULC are the same as the qualitative adjustments used in the ALLL. We adjust the Company’s unfunded lending commitments that are not unconditionally cancelable to an outstanding amount equivalent using credit conversion factors and we apply the loss factors to the outstanding equivalents.

Changes in ACL Assumptions

Prior to the third quarter of 2012, for all troubled debt restructurings (“TDRs”) regardless of size, the ALLL was based on an individual impairment evaluation, considering facts and circumstances specific to each borrower, as described subsequently. For loans no longer reported as TDRs, the ALLL was based on the methodology consistent with our nonimpaired loans, as described previously. Beginning in the third quarter of 2012, for qualifying TDRs (i.e., accruing TDRs, nonaccruing TDRs less than $1 million, and for loans no longer reported as TDRs since the beginning of 2012), the ALLL is based on a discounted cash flow analysis performed at the individual loan level, where credit losses are estimated based on historical loss statistics, derived from loans with similar risk characteristics (e.g., credit quality indicator and loan type), rather than the previous methodology that considered facts and circumstances specific to each borrower. This change in methodology had the effect of increasing the ALLL at September 30, 2012 by approximately $19 million.

Changes in the allowance for credit losses are summarized as follows:

	Three Months Ended September 30, 2012
(In thousands)	Commercial			Commercial real estate			Consumer			FDIC- supported ¹			Total
Allowance for loan losses:
Balance at beginning of period	$	616,359		$	232,049		$	102,391		$	20,917		$	971,716
Additions:
Provision for loan losses	2,843			(5,010		)	3,351			(3,073		)	(1,889		)
Adjustment for FDIC-supported loans	—			—			—			(5,908		)	(5,908		)
Deductions:
Gross loan and lease charge-offs	(26,424		)	(20,264		)	(11,391		)	(702		)	(58,781		)
Recoveries	12,013			3,312			3,262			1,616			20,203
Net loan and lease charge-offs	(14,411		)	(16,952		)	(8,129		)	914			(38,578		)
Balance at end of period	$	604,791		$	210,087		$	97,613		$	12,850		$	925,341

Reserve for unfunded lending commitments:
Balance at beginning of period	$	70,553		$	31,663		$	1,370		$	—		$	103,586
Provision charged (credited) to earnings	542			1,741			(19		)	—			2,264
Balance at end of period	$	71,095		$	33,404		$	1,351		$	—		$	105,850

Total allowance for credit losses at end of period:
Allowance for loan losses	$	604,791		$	210,087		$	97,613		$	12,850		$	925,341
Reserve for unfunded lending commitments	71,095			33,404			1,351			—			105,850
Total allowance for credit losses	$	675,886		$	243,491		$	98,964		$	12,850		$	1,031,191

Table of Contents

ZIONS BANCORPORATION AND SUBSIDIARIES



	Nine Months Ended September 30, 2012
(In thousands)	Commercial			Commercial real estate			Consumer			FDIC- supported ¹			Total
Allowance for loan losses:
Balance at beginning of period	$	627,825		$	275,546		$	123,115		$	23,472		$	1,049,958
Additions:
Provision for loan losses	35,741			(17,651		)	9,989			(3,451		)	24,628
Adjustment for FDIC-supported loans	—			—			—			(12,821		)	(12,821		)
Deductions:
Gross loan and lease charge-offs	(91,477		)	(70,098		)	(45,722		)	(5,183		)	(212,480		)
Recoveries	32,702			22,290			10,231			10,833			76,056
Net loan and lease charge-offs	(58,775		)	(47,808		)	(35,491		)	5,650			(136,424		)
Balance at end of period	$	604,791		$	210,087		$	97,613		$	12,850		$	925,341

Reserve for unfunded lending commitments:
Balance at beginning of period	$	77,232		$	23,572		$	1,618		$	—		$	102,422
Provision charged (credited) to earnings	(6,137		)	9,832			(267		)	—			3,428
Balance at end of period	$	71,095		$	33,404		$	1,351		$	—		$	105,850

Total allowance for credit losses at end of period:
Allowance for loan losses	$	604,791		$	210,087		$	97,613		$	12,850		$	925,341
Reserve for unfunded lending commitments	71,095			33,404			1,351			—			105,850
Total allowance for credit losses	$	675,886		$	243,491		$	98,964		$	12,850		$	1,031,191



	Three Months Ended September 30, 2011
(In thousands)	Commercial			Commercial real estate			Consumer			FDIC- supported ¹			Total
Allowance for loan losses:
Balance at beginning of period	$	667,646		$	392,852		$	149,773		$	27,462		$	1,237,733
Additions:
Provision for loan losses	47,764			(49,770		)	15,618			941			14,553
Adjustment for FDIC-supported loans	—			—			—			(1,520		)	(1,520		)
Deductions:
Gross loan and lease charge-offs	(63,047		)	(44,658		)	(18,475		)	(2,966		)	(129,146		)
Recoveries	8,788			13,285			3,185			2,025			27,283
Net loan and lease charge-offs	(54,259		)	(31,373		)	(15,290		)	(941		)	(101,863		)
Balance at end of period	$	661,151		$	311,709		$	150,101		$	25,942		$	1,148,903

Reserve for unfunded lending commitments:
Balance at beginning of period	$	75,082		$	23,852		$	1,330		$	—		$	100,264
Provision charged (credited) to earnings	1,549			(3,278		)	(473		)	—			(2,202		)
Balance at end of period	$	76,631		$	20,574		$	857		$	—		$	98,062

Total allowance for credit losses at end of period:
Allowance for loan losses	$	661,151		$	311,709		$	150,101		$	25,942		$	1,148,903
Reserve for unfunded lending commitments	76,631			20,574			857			—			98,062
Total allowance for credit losses	$	737,782		$	332,283		$	150,958		$	25,942		$	1,246,965

Table of Contents

ZIONS BANCORPORATION AND SUBSIDIARIES



	Nine Months Ended September 30, 2011
(In thousands)	Commercial			Commercial real estate			Consumer			FDIC- supported ¹			Total
Allowance for loan losses:
Balance at beginning of period	$	761,107		$	487,235		$	154,326		$	37,673		$	1,440,341
Additions:
Provision for loan losses	37,864			(21,475		)	53,564			5,930			75,883
Adjustment for FDIC-supported loans	—			—			—			(6,196		)	(6,196		)
Deductions:
Gross loan and lease charge-offs	(172,103		)	(182,849		)	(68,407		)	(16,199		)	(439,558		)
Recoveries	34,283			28,798			10,618			4,734			78,433
Net loan and lease charge-offs	(137,820		)	(154,051		)	(57,789		)	(11,465		)	(361,125		)
Balance at end of period	$	661,151		$	311,709		$	150,101		$	25,942		$	1,148,903

Reserve for unfunded lending commitments:
Balance at beginning of period	$	83,352		$	26,373		$	1,983		$	—		$	111,708
Provision charged (credited) to earnings	(6,721		)	(5,799		)	(1,126		)	—			(13,646		)
Balance at end of period	$	76,631		$	20,574		$	857		$	—		$	98,062

Total allowance for credit losses at end of period:
Allowance for loan losses	$	661,151		$	311,709		$	150,101		$	25,942		$	1,148,903
Reserve for unfunded lending commitments	76,631			20,574			857			—			98,062
Total allowance for credit losses	$	737,782		$	332,283		$	150,958		$	25,942		$	1,246,965

¹The Purchased Loans section following contains further discussion related to FDIC-supported loans.

The ALLL and outstanding loan balances according to the Company’s impairment method are summarized as follows:

	September 30, 2012
(In thousands)	Commercial		Commercial real estate		Consumer		FDIC- supported		Total
Allowance for loan losses:
Individually evaluated for impairment	$	36,278	$	30,579	$	15,036	$	—	$	81,893
Collectively evaluated for impairment	568,513		179,508		82,577		10,069		840,667
Purchased loans with evidence of credit deterioration	—		—		—		2,781		2,781
Total	$	604,791	$	210,087	$	97,613	$	12,850	$	925,341

Outstanding loan balances:
Individually evaluated for impairment	$	344,411	$	495,569	$	97,589	$	1,581	$	939,150
Collectively evaluated for impairment	18,947,322		9,600,163		7,097,199		494,513		36,139,197
Purchased loans with evidence of credit deterioration	—		—		—		92,472		92,472
Total	$	19,291,733	$	10,095,732	$	7,194,788	$	588,566	$	37,170,819

Table of Contents

ZIONS BANCORPORATION AND SUBSIDIARIES



	December 31, 2011
(In thousands)	Commercial		Commercial real estate		Consumer		FDIC- supported		Total
Allowance for loan losses:
Individually evaluated for impairment	$	11,456	$	20,971	$	8,995	$	623	$	42,045
Collectively evaluated for impairment	616,369		254,575		114,120		16,830		1,001,894
Purchased loans with evidence of credit deterioration	—		—		—		6,019		6,019
Total	$	627,825	$	275,546	$	123,115	$	23,472	$	1,049,958

Outstanding loan balances:
Individually evaluated for impairment	$	349,662	$	668,022	$	113,798	$	2,701	$	1,134,183
Collectively evaluated for impairment	18,964,702		9,480,321		6,817,277		637,962		35,900,262
Purchased loans with evidence of credit deterioration	—		—		—		110,207		110,207
Total	$	19,314,364	$	10,148,343	$	6,931,075	$	750,870	$	37,144,652

Nonaccrual and Past Due Loans

Loans are generally placed on nonaccrual status when payment in full of principal and interest is not expected, or the loan is 90 days or more past due as to principal or interest, unless the loan is both well secured and in the process of collection. Factors we consider in determining whether a loan is placed on nonaccrual include delinquency status, collateral value, borrower or guarantor financial statement information, bankruptcy status, and other information which would indicate that the full and timely collection of interest and principal is uncertain.

A nonaccrual loan may be returned to accrual status when all delinquent interest and principal become current in accordance with the terms of the loan agreement; the loan, if secured, is well secured; the borrower has paid according to the contractual terms for a minimum of six months; and analysis of the borrower indicates a reasonable assurance of the ability and willingness to maintain payments. Payments received on nonaccrual loans are applied as a reduction to the principal outstanding.

Closed-end loans with payments scheduled monthly are reported as past due when the borrower is in arrears for two or more monthly payments. Similarly, open-end credit such as charge-card plans and other revolving credit plans are reported as past due when the minimum payment has not been made for two or more billing cycles. Other multi-payment obligations (i.e., quarterly, semiannual, etc.), single payment, and demand notes are reported as past due when either principal or interest is due and unpaid for a period of 30 days or more.

Table of Contents

ZIONS BANCORPORATION AND SUBSIDIARIES

Nonaccrual loans are summarized as follows:

(In thousands)	September 30, 2012		December 31, 2011
Loans held for sale	$	29	$	18,216
Commercial:
Commercial and industrial	$	103,206	$	126,468
Leasing	1,393		1,546
Owner occupied	223,419		239,203
Municipal	5,897		—
Total commercial	333,915		367,217
Commercial real estate:
Construction and land development	124,855		219,837
Term	155,141		156,165
Total commercial real estate	279,996		376,002
Consumer:
Home equity credit line	11,867		18,376
1-4 family residential	65,736		90,857
Construction and other consumer real estate	6,110		12,096
Bankcard and other revolving plans	871		346
Other	1,428		2,498
Total consumer loans	86,012		124,173
FDIC-supported loans	19,454		24,267
Total	$	719,377	$	891,659

Past due loans (accruing and nonaccruing) are summarized as follows:

	September 30, 2012
(In thousands)	Current		30-89 days past due		90+ days past due		Total past due		Total loans		Accruing loans 90+ days past due		Nonaccrual loans that are current¹
Loans held for sale	$	220,211	$	29	$	—	$	29	$	220,240	$	—	$	—
Commercial:
Commercial and industrial	$	10,635,534	$	47,041	$	65,691	$	112,732	$	10,748,266	$	6,286	$	37,630
Leasing	402,741		878		1,393		2,271		405,012		—		—
Owner occupied	7,523,411		56,027		89,780		145,807		7,669,218		1,370		112,781
Municipal	469,237		—		—		—		469,237		—		5,897
Total commercial	19,030,923		103,946		156,864		260,810		19,291,733		7,656		156,308
Commercial real estate:
Construction and land development	1,874,942		16,242		65,002		81,244		1,956,186		1,378		61,089
Term	8,017,163		43,133		79,250		122,383		8,139,546		3,786		63,428
Total commercial real estate	9,892,105		59,375		144,252		203,627		10,095,732		5,164		124,517
Consumer:
Home equity credit line	2,165,086		6,430		3,822		10,252		2,175,338		—		5,558
1-4 family residential	4,121,285		19,792		39,925		59,717		4,181,002		362		21,451
Construction and other consumer real estate	314,251		2,615		3,221		5,836		320,087		292		2,789
Bankcard and other revolving plans	290,295		3,360		1,172		4,532		294,827		1,027		227
Other	221,366		983		1,185		2,168		223,534		7		178
Total consumer loans	7,112,283		33,180		49,325		82,505		7,194,788		1,688		30,203
FDIC-supported loans	501,245		15,983		71,338		87,321		588,566		60,913		8,508
Total	$	36,536,556	$	212,484	$	421,779	$	634,263	$	37,170,819	$	75,421	$	319,536

Table of Contents

ZIONS BANCORPORATION AND SUBSIDIARIES



	December 31, 2011
(In thousands)	Current		30-89 days past due		90+ days past due		Total past due		Total loans		Accruing loans 90+ days past due		Nonaccrual loans that are current¹
Loans held for sale	$	183,344	$	—	$	18,246	$	18,246	$	201,590	$	30	$	—

Commercial:
Commercial and industrial	$	10,198,434	$	62,153	$	74,271	$	136,424	$	10,334,858	$	4,966	$	47,939
Leasing	377,914		1,634		161		1,795		379,709		—		1,319
Owner occupied	7,953,280		93,763		111,513		205,276		8,158,556		3,230		85,495
Municipal	441,241		—		—		—		441,241		—		—
Total commercial	18,970,869		157,550		185,945		343,495		19,314,364		8,196		134,753

Commercial real estate:
Construction and land development	2,137,544		21,562		105,803		127,365		2,264,909		2,471		107,991
Term	7,770,268		51,592		61,574		113,166		7,883,434		4,170		88,451
Total commercial real estate	9,907,812		73,154		167,377		240,531		10,148,343		6,641		196,442

Consumer:
Home equity credit line	2,169,190		8,669		9,569		18,238		2,187,428		—		5,542
1-4 family residential	3,846,012		18,985		56,219		75,204		3,921,216		2,833		32,067
Construction and other consumer real estate	294,371		5,008		6,494		11,502		305,873		136		4,773
Bankcard and other revolving plans	287,541		1,984		1,493		3,477		291,018		1,309		122
Other	221,575		1,995		1,970		3,965		225,540		—		372
Total consumer loans	6,818,689		36,641		75,745		112,386		6,931,075		4,278		42,876

FDIC-supported loans	634,113		27,791		88,966		116,757		750,870		74,611		6,812
Total	$	36,331,483	$	295,136	$	518,033	$	813,169	$	37,144,652	$	93,726	$	380,883

¹Represents nonaccrual loans that are not past due more than 30 days; however, full payment of principal and interest is still not expected.

Credit Quality Indicators

In addition to the past due and nonaccrual criteria, we also analyze loans using a loan grading system. We generally assign internal grades to loans with commitments less than $500,000 based on the performance of those loans. Performance-based grades follow our definitions of Pass, Special Mention, Substandard, and Doubtful, which are consistent with published definitions of regulatory risk classifications.

Definitions of Pass, Special Mention, Substandard, and Doubtful are summarized as follows:

Pass: A Pass asset is higher quality and does not fit any of the other categories described below. The likelihood of loss is considered remote.

Special Mention: A Special Mention asset has potential weaknesses that may be temporary or, if left uncorrected, may result in a loss. While concerns exist, the bank is currently protected and loss is considered unlikely and not imminent.

Substandard: A Substandard asset is inadequately protected by the current sound worth and paying capacity of the obligor or of the collateral pledged, if any. Assets so classified have well defined weaknesses and are characterized by the distinct possibility that the bank may sustain some loss if deficiencies are not corrected.

Doubtful: A Doubtful asset has all the weaknesses inherent in a Substandard asset with the added characteristics that the weaknesses make collection or liquidation in full highly questionable.

Table of Contents

ZIONS BANCORPORATION AND SUBSIDIARIES

We generally assign internal grades to commercial and commercial real estate loans with commitments equal to or greater than $500,000 based on financial/statistical models, individual credit analysis, and loan officer judgment. For these larger loans, we assign one of fourteen probability of default grades (in order of declining credit quality) and one of twelve loss-given-default grades. The first ten of the fourteen probability of default grades indicate a Pass grade. The remaining four grades are: Special Mention, Substandard, Doubtful, and Loss. Loss indicates that the outstanding balance has been charged-off. We evaluate our credit quality information such as risk grades at least quarterly, or as soon as we identify information that might warrant an upgrade or downgrade. Risk grades are then updated as necessary.

For consumer loans, we generally assign internal risk grades similar to those described previously based on payment performance. These are generally assigned with either a Pass or Substandard grade and are reviewed as we identify information that might warrant an upgrade or downgrade.

Outstanding loan balances (accruing and nonaccruing) categorized by these credit quality indicators are summarized as follows:



	September 30, 2012
(In thousands)	Pass		Special Mention		Sub- standard		Doubtful		Total loans		Total allowance
Loans held for sale	$	219,632	$	—	$	579	$	29	$	220,240	$	—
Commercial:
Commercial and industrial	$	10,137,286	$	282,677	$	323,196	$	5,107	$	10,748,266
Leasing	398,063		589		6,343		17		405,012
Owner occupied	6,932,995		156,653		573,761		5,809		7,669,218
Municipal	459,929		3,411		5,897		—		469,237
Total commercial	17,928,273		443,330		909,197		10,933		19,291,733		$	604,791
Commercial real estate:
Construction and land development	1,545,806		137,660		272,210		510		1,956,186
Term	7,479,468		222,114		436,085		1,879		8,139,546
Total commercial real estate	9,025,274		359,774		708,295		2,389		10,095,732		210,087
Consumer:
Home equity credit line	2,133,557		83		41,698		—		2,175,338
1-4 family residential	4,064,901		2,934		113,167		—		4,181,002
Construction and other consumer real estate	309,983		510		9,594		—		320,087
Bankcard and other revolving plans	284,192		2,918		7,717		—		294,827
Other	219,501		—		4,033		—		223,534
Total consumer loans	7,012,134		6,445		176,209		—		7,194,788		97,613
FDIC-supported loans	378,464		24,362		185,740		—		588,566		12,850
Total	$	34,344,145	$	833,911	$	1,979,441	$	13,322	$	37,170,819	$	925,341

Table of Contents

ZIONS BANCORPORATION AND SUBSIDIARIES



	December 31, 2011
(In thousands)	Pass		Special Mention		Sub- standard		Doubtful		Total loans		Total allowance
Loans held for sale	$	182,626	$	—	$	18,964	$	—	$	201,590	$	—
Commercial:
Commercial and industrial	$	9,612,143	$	271,845	$	442,139	$	8,731	$	10,334,858
Leasing	362,711		5,878		11,120		—		379,709
Owner occupied	7,481,207		184,821		486,584		5,944		8,158,556
Municipal	425,807		15,434		—		—		441,241
Total commercial	17,881,868		477,978		939,843		14,675		19,314,364		$	627,825
Commercial real estate:
Construction and land development	1,647,741		187,323		426,152		3,693		2,264,909
Term	7,243,678		196,377		437,390		5,989		7,883,434
Total commercial real estate	8,891,419		383,700		863,542		9,682		10,148,343		275,546
Consumer:
Home equity credit line	2,136,190		106		51,089		43		2,187,428
1-4 family residential	3,788,958		5,736		126,277		245		3,921,216
Construction and other consumer real estate	274,712		12,206		16,967		1,988		305,873
Bankcard and other revolving plans	278,767		3,832		8,419		—		291,018
Other	221,114		163		4,256		7		225,540
Total consumer loans	6,699,741		22,043		207,008		2,283		6,931,075		123,115
FDIC-supported loans	499,956		35,877		215,031		6		750,870		23,472
Total	$	33,972,984	$	919,598	$	2,225,424	$	26,646	$	37,144,652	$	1,049,958

Impaired Loans

Loans are considered impaired when, based on current information and events, it is probable that we will be unable to collect all amounts due in accordance with the contractual terms of the loan agreement, including scheduled interest payments. If a nonaccrual loan has a balance greater than $1 million or if a loan is a TDR, including TDRs that subsequently default, we evaluate the loan for impairment and estimate a specific reserve for the loan for all portfolio segments under applicable accounting guidance. Smaller nonaccrual loans are pooled for ALLL estimation purposes.

When a loan is impaired, we estimate a specific reserve for the loan based on the projected present value of the loan’s future cash flows discounted at the loan’s effective interest rate, the observable market price of the loan, or the fair value of the loan’s underlying collateral less the cost to sell. The process of estimating future cash flows also incorporates the same determining factors discussed previously under nonaccrual loans. When we base the impairment amount on the fair value of the loan’s underlying collateral, we generally charge off the portion of the balance that is impaired, such that these loans do not have a specific reserve in the ALLL. Payments received on impaired loans that are accruing are recognized in interest income, according to the contractual loan agreement. Payments received on impaired loans that are on nonaccrual are not recognized in interest income, but are applied as a reduction to the principal outstanding. Payments are recognized when cash is received.

Information on impaired loans individually evaluated is summarized as follows, including the average recorded investment and interest income recognized for the three and nine months ended September 30, 2012 and 2011:

Table of Contents

ZIONS BANCORPORATION AND SUBSIDIARIES



	September 30, 2012
(In thousands)	Unpaid principal balance		Recorded investment				Total recorded investment		Related allowance
			with no allowance		with allowance
Commercial:
Commercial and industrial	$	183,935	$	30,481	$	119,029	$	149,510	$	20,642
Owner occupied	218,234		80,905		108,099		189,004		15,297
Municipal	5,897		—		5,897		5,897		339
Total commercial	408,066		111,386		233,025		344,411		36,278
Commercial real estate:
Construction and land development	252,760		86,123		121,471		207,594		9,675
Term	349,308		96,016		191,959		287,975		20,904
Total commercial real estate	602,068		182,139		313,430		495,569		30,579
Consumer:
Home equity credit line	1,397		580		155		735		61
1-4 family residential	103,099		20,912		66,813		87,725		14,232
Construction and other consumer real estate	9,343		2,758		4,221		6,979		743
Bankcard and other revolving plans	284		284		—		284		—
Other	2,312		1,866		—		1,866		—
Total consumer loans	116,435		26,400		71,189		97,589		15,036
FDIC-supported loans	193,983		58,899		35,154		94,053		2,781
Total	$	1,320,552	$	378,824	$	652,798	$	1,031,622	$	84,674



	December 31, 2011
(In thousands)	Unpaid principal balance		Recorded investment				Total recorded investment		Related allowance
			with no allowance		with allowance
Commercial:
Commercial and industrial	$	212,263	$	69,492	$	66,438	$	135,930	$	6,373
Owner occupied	258,173		135,555		78,177		213,732		5,083
Total commercial	470,436		205,047		144,615		349,662		11,456
Commercial real estate:
Construction and land development	405,499		178,113		136,634		314,747		8,925
Term	414,998		187,345		165,930		353,275		12,046
Total commercial real estate	820,497		365,458		302,564		668,022		20,971
Consumer:
Home equity credit line	1,955		384		1,469		1,853		411
1-4 family residential	116,498		58,392		39,960		98,352		7,555
Construction and other consumer real estate	13,340		4,537		6,188		10,725		1,026
Bankcard and other revolving plans	—		—		—		—		—
Other	2,889		2,840		28		2,868		3
Total consumer loans	134,682		66,153		47,645		113,798		8,995
FDIC-supported loans	353,195		47,736		65,188		112,924		6,642
Total	$	1,778,810	$	684,394	$	560,012	$	1,244,406	$	48,064

Table of Contents

ZIONS BANCORPORATION AND SUBSIDIARIES



	Three Months Ended September 30, 2012					Nine Months Ended September 30, 2012
(In thousands)	Average recorded investment		Interest income recognized			Average recorded investment		Interest income recognized
Commercial:
Commercial and industrial	$	133,120	$	830		$	128,930	$	2,395
Owner occupied	187,072		558			168,328		1,729
Municipal	3,943		—			1,314		—
Total commercial	324,135		1,388			298,572		4,124
Commercial real estate:
Construction and land development	205,295		1,133			188,064		2,780
Term	288,735		1,723			258,159		5,806
Total commercial real estate	494,030		2,856			446,223		8,586
Consumer:
Home equity credit line	742		3			847		6
1-4 family residential	86,103		431			79,993		1,162
Construction and other consumer real estate	6,764		43			6,641		128
Bankcard and other revolving plans	287		—			128		—
Other	1,972		—			2,320		—
Total consumer loans	95,868		477			89,929		1,296
FDIC-supported loans	94,890		14,055		¹	102,709		34,202		¹
Total	$	1,008,923	$	18,776		$	937,433	$	48,208



	Three Months Ended September 30, 2011					Nine Months Ended September 30, 2011
(In thousands)	Average recorded investment		Interest income recognized			Average recorded investment		Interest income recognized
Commercial:
Commercial and industrial	$	176,884	$	468		$	194,582	$	1,608
Leasing	240		—			124		—
Owner occupied	269,455		634			297,808		2,066
Municipal	3,872		—			3,256		—
Total commercial	450,451		1,102			495,770		3,674
Commercial real estate:
Construction and land development	406,510		1,229			480,834		3,803
Term	387,178		2,082			412,378		6,381
Total commercial real estate	793,688		3,311			893,212		10,184
Consumer:
Home equity credit line	1,133		—			1,265		1
1-4 family residential	103,983		353			106,439		977
Construction and other consumer real estate	12,034		29			12,744		51
Bankcard and other revolving plans	—		—			21		—
Other	3,723		—			3,793		—
Total consumer loans	120,873		382			124,262		1,029
FDIC-supported loans	133,911		12,661		¹	152,241		41,164		¹
Total	$	1,498,923	$	17,456		$	1,665,485	$	56,051

¹The balance of interest income recognized results primarily from accretion of interest income on impaired FDIC-supported loans.

Table of Contents

ZIONS BANCORPORATION AND SUBSIDIARIES

Modified and Restructured Loans

Loans may be modified in the normal course of business for competitive reasons or to strengthen the Company’s position. Loan modifications and restructurings may also occur when the borrower experiences financial difficulty and needs temporary or permanent relief from the original contractual terms of the loan. These modifications are structured on a loan-by-loan basis and, depending on the circumstances, may include extended payment terms, a modified interest rate, forgiveness of principal, or other concessions. Loans that have been modified to accommodate a borrower who is experiencing financial difficulties, and for which the Company has granted a concession that it would not otherwise consider, are considered TDRs.

We consider many factors in determining whether to agree to a loan modification involving concessions, and seek a solution that will both minimize potential loss to the Company and attempt to help the borrower. We evaluate borrowers’ current and forecasted future cash flows, their ability and willingness to make current contractual or proposed modified payments, the value of the underlying collateral (if applicable), the possibility of obtaining additional security or guarantees, and the potential costs related to a repossession or foreclosure and the subsequent sale of the collateral.

TDRs are classified as either accrual or nonaccrual loans. A loan on nonaccrual and restructured as a TDR will remain on nonaccrual status until the borrower has proven the ability to perform under the modified structure for a minimum of six months, and there is evidence that such payments can and are likely to continue as agreed. Performance prior to the restructuring, or significant events that coincide with the restructuring, are included in assessing whether the borrower can meet the new terms and may result in the loan being returned to accrual at the time of restructuring or after a shorter performance period. If the borrower’s ability to meet the revised payment schedule is uncertain, the loan remains classified as a nonaccrual loan. A TDR loan that specifies an interest rate that at the time of the restructuring is greater than or equal to the rate the bank is willing to accept for a new loan with comparable risk may not be reported as a TDR or an impaired loan in the calendar years subsequent to the restructuring if it is in compliance with its modified terms.

Table of Contents

ZIONS BANCORPORATION AND SUBSIDIARIES

Selected information on TDRs that includes the recorded investment on an accruing and nonaccruing basis by loan class and modification type is summarized in the following table. This information reflects all TDRs at September 30, 2012 and December 31, 2011:



	September 30, 2012
	Recorded investment resulting from the following modification types:
(In thousands)	Interest rate below market		Maturity or term extension		Principal forgiveness		Payment deferral		Other¹		Multiple modification types²		Total
Accruing
Commercial:
Commercial and industrial	$	2,574	$	6,873	$	—	$	3,547	$	20,510	$	47,220	$	80,724
Owner occupied	2,027		14,853		—		4,052		4,277		11,232		36,441
Total commercial	4,601		21,726		—		7,599		24,787		58,452		117,165
Commercial real estate:
Construction and land development	1,734		26,500		4		58		19,181		40,259		87,736
Term	4,145		1,691		2,974		2,182		58,128		89,901		159,021
Total commercial real estate	5,879		28,191		2,978		2,240		77,309		130,160		246,757
Consumer:
Home equity credit line	194		—		—		—		—		79		273
1-4 family residential	6,133		6,262		1,054		—		3,817		35,956		53,222
Construction and other consumer real estate	151		469		—		—		642		2,376		3,638
Total consumer loans	6,478		6,731		1,054		—		4,459		38,411		57,133
Total accruing	16,958		56,648		4,032		9,839		106,555		227,023		421,055
Nonaccruing
Commercial:
Commercial and industrial	331		4,597		1,827		802		8,273		9,753		25,583
Owner occupied	4,249		4,216		669		10,322		8,780		16,332		44,568
Total commercial	4,580		8,813		2,496		11,124		17,053		26,085		70,151
Commercial real estate:
Construction and land development	13,991		2,426		—		—		17,970		38,836		73,223
Term	3,244		560		—		2,153		11,816		24,320		42,093
Total commercial real estate	17,235		2,986		—		2,153		29,786		63,156		115,316
Consumer:
Home equity credit line	—		—		—		—		—		127		127
1-4 family residential	1,134		668		309		—		1,755		15,020		18,886
Construction and other consumer real estate	9		1,731		—		—		330		255		2,325
Bankcard and other revolving plans	—		284		—		—		—		—		284
Total consumer loans	1,143		2,683		309		—		2,085		15,402		21,622
Total nonaccruing	22,958		14,482		2,805		13,277		48,924		104,643		207,089
Total	$	39,916	$	71,130	$	6,837	$	23,116	$	155,479	$	331,666	$	628,144

Table of Contents

ZIONS BANCORPORATION AND SUBSIDIARIES



	December 31, 2011
	Recorded investment resulting from the following modification types:
(In thousands)	Interest rate below market		Maturity or term extension		Principal forgiveness		Payment deferral		Other¹		Multiple modification types²		Total
Accruing
Commercial:
Commercial and industrial	$	302	$	7,727	$	—	$	1,955	$	27,370	$	4,517	$	41,871
Owner occupied	1,875		15,224		37		1,008		5,504		20,449		44,097
Total commercial	2,177		22,951		37		2,963		32,874		24,966		85,968
Commercial real estate:
Construction and land development	644		33,284		565		—		28,911		34,862		98,266
Term	2,738		33,885		3,027		23,640		54,031		95,868		213,189
Total commercial real estate	3,382		67,169		3,592		23,640		82,942		130,730		311,455
Consumer:
Home equity credit line	—		—		—		—		32		—		32
1-4 family residential	3,270		1,663		525		—		6,103		34,839		46,400
Construction and other consumer real estate	166		1,444		—		—		635		1,981		4,226
Other	—		28		—		—		—		—		28
Total consumer loans	3,436		3,135		525		—		6,770		36,820		50,686
Total accruing	8,995		93,255		4,154		26,603		122,586		192,516		448,109
Nonaccruing
Commercial:
Commercial and industrial	3,526		6,094		—		1,429		8,384		10,202		29,635
Owner occupied	4,464		1,101		715		6,575		17,070		10,300		40,225
Total commercial	7,990		7,195		715		8,004		25,454		20,502		69,860
Commercial real estate:
Construction and land development	15,088		3,348		19		2,060		7,441		94,502		122,458
Term	3,445		50		—		4,250		4,724		65,316		77,785
Total commercial real estate	18,533		3,398		19		6,310		12,165		159,818		200,243
Consumer:
Home equity credit line	195		—		—		—		253		69		517
1-4 family residential	1,386		85		939		718		1,391		18,476		22,995
Construction and other consumer real estate	18		1,837		—		—		—		355		2,210
Total consumer loans	1,599		1,922		939		718		1,644		18,900		25,722
Total nonaccruing	28,122		12,515		1,673		15,032		39,263		199,220		295,825
Total	$	37,117	$	105,770	$	5,827	$	41,635	$	161,849	$	391,736	$	743,934

¹Includes TDRs that resulted from other modification types including, but not limited to, a legal judgment awarded on different terms, a bankruptcy plan confirmed on different terms, a settlement that includes the delivery of collateral in exchange for debt reduction, etc.

²Includes TDRs that resulted from a combination of any of the previous modification types.

Unused commitments to extend credit on TDRs amounted to approximately $17 million at September 30, 2012 and $9 million at December 31, 2011.

Table of Contents

ZIONS BANCORPORATION AND SUBSIDIARIES

The total recorded investment of all TDRs in which interest rates were modified below market was $210.1 million at September 30, 2012 and $269.9 million at December 31, 2011. These loans are included in the previous table in the columns for interest rate below market and multiple modification types.

The net financial impact on interest income due to interest rate modifications below market for accruing TDRs is summarized in the following schedule:



(In thousands)	Three Months Ended September 30, 2012				Nine Months Ended September 30, 2012				Year Ended December 31, 2011
Commercial:
Commercial and industrial	$	(134	)		$	(157	)			$	(46	)
Owner occupied	(309		)		(1,012		)			(1,650		)
Total commercial	(443		)		(1,169		)			(1,696		)
Commercial real estate:
Construction and land development	(273		)		(742		)			(244		)
Term	(1,443		)		(4,469		)			(7,096		)
Total commercial real estate	(1,716		)		(5,211		)			(7,340		)
Consumer:
Home equity credit line	(18		)		(51		)			—
1-4 family residential	(4,204		)		(12,045		)			(10,188		)
Construction and other consumer real estate	(230		)		(445		)			(406		)
Total consumer loans	(4,452		)		(12,541		)			(10,594		)
Total decrease to interest income	$	(6,611	)	¹	$	(18,921	)	¹		$	(19,630	)	¹

¹Calculated based on the difference between the modified rate and the premodified rate applied to the recorded investment.

On an ongoing basis, we monitor the performance of all TDRs according to their restructured terms. Subsequent payment default is defined in terms of delinquency, when principal or interest payments are past due 90 days or more for commercial loans, or 60 days or more for consumer loans.

As of September 30, 2012, the recorded investment of accruing and nonaccruing TDRs that had a payment default during the period listed below (and are still in default at period-end) and are within 12 months or less of being modified as TDRs is as follows:



(In thousands)	Three Months Ended September 30, 2012						Nine Months Ended September 30, 2012						Year Ended December 31, 2011
	Accruing		Nonaccruing		Total		Accruing		Nonaccruing		Total		Accruing		Nonaccruing		Total
Commercial:
Commercial and industrial	$	—	$	107	$	107	$	—	$	1,441	$	1,441	$	35	$	1,700	$	1,735
Owner occupied	—		—		—		—		5,405		5,405		—		441		441
Total commercial	—		107		107		—		6,846		6,846		35		2,141		2,176
Commercial real estate:
Construction and land development	—		2,229		2,229		—		2,525		2,525		—		11,667		11,667
Term	—		—		—		—		—		—		—		5,971		5,971
Total commercial real estate	—		2,229		2,229		—		2,525		2,525		—		17,638		17,638
Consumer:
1-4 family residential	—		—		—		—		1,089		1,089		—		2,745		2,745
Total consumer loans	—		—		—		—		1,089		1,089		—		2,745		2,745
Total	$	—	$	2,336	$	2,336	$	—	$	10,460	$	10,460	$	35	$	22,524	$	22,559

Note: Total loans modified as TDRs during the 12 months previous to September 30, 2012 were $164.6 million.

Table of Contents

ZIONS BANCORPORATION AND SUBSIDIARIES

Concentrations of Credit Risk

We perform an ongoing analysis of our loan portfolio to evaluate whether there is any significant exposure to any concentrations of credit risk. These potential concentrations include, but are not limited to, individual borrowers, groups of borrowers, industries, geographies, collateral types, sponsors, etc. Such credit risks (whether on- or off-balance sheet) may occur when groups of borrowers or counterparties have similar economic characteristics and are similarly affected by changes in economic or other conditions. Credit risk also includes the loss that would be recognized subsequent to the reporting date if counterparties failed to perform as contracted. Our analysis as of September 30, 2012 concluded that no significant exposure exists from such credit risk concentrations. See Note 6 for a discussion of counterparty risk associated with the Company’s derivative transactions.

Purchased Loans

Background and Accounting

We purchase loans in the ordinary course of business and account for them and the related interest income based on their performing status at the time of acquisition. Purchased credit-impaired (“PCI”) loans have evidence of credit deterioration at the time of acquisition and it is probable that not all contractual payments will be collected. Interest income for PCI loans is accounted for on an expected cash flow basis. Certain other loans acquired by the Company that are not credit-impaired include loans with revolving privileges and are excluded from the PCI tabular disclosures following. Interest income for these loans is accounted for on a contractual cash flow basis. Certain acquired loans with similar characteristics such as risk exposure, type, size, etc., are grouped and accounted for in loan pools.

CB&T and NSB acquired failed banks from the FDIC as receiver and entered into loss sharing agreements with the FDIC for the acquired loans and foreclosed assets. The FDIC assumes 80% of credit losses up to a threshold specified for each acquisition and 95% above the threshold for a period of five years on most of the covered portfolio, although the period is ten years for single family residential loans. The loans acquired from the FDIC are presented separately in the Company’s balance sheet as “FDIC-supported loans” and include both PCI and certain other acquired loans.

During the first quarter of 2011, certain FDIC-supported loans charged off at the time of acquisition were determined to be covered by the FDIC loss sharing agreement. The FDIC remitted $18.9 million to the Company, which was recognized in other noninterest income.

Upon acquisition, in accordance with applicable accounting guidance, the acquired loans were recorded at their fair value without a corresponding ALLL. The acquired foreclosed assets and subsequent real estate foreclosures were included with other real estate owned (“OREO”) in the balance sheet and amounted to $11.8 million at September 30, 2012 and $24.3 million at December 31, 2011.

Outstanding Balances and Accretable Yield

The outstanding balances of all required payments and the related carrying amounts for PCI loans are as follows:



(In thousands)	September 30, 2012		December 31, 2011
Commercial	$	254,523	$	321,515
Commercial real estate	413,269		556,197
Consumer	44,731		57,391
Outstanding balance	$	712,523	$	935,103

Carrying amount	$	529,833	$	672,159
ALLL	12,062		21,604
Carrying amount, net	$	517,771	$	650,555

At the time of acquisition of PCI loans, we determine the loan’s contractually required payments in excess of all cash flows expected to be collected as an amount that should not be accreted (nonaccretable difference). With respect to the

Table of Contents

ZIONS BANCORPORATION AND SUBSIDIARIES

cash flows expected to be collected, the portion representing the excess of the loan’s expected cash flows over our initial investment (accretable yield) is accreted into interest income on a level yield basis over the remaining expected life of the loan or pool of loans. The effects of estimated prepayments are considered in estimating the expected cash flows.

Certain PCI loans are not accounted for as previously described because the estimation of cash flows to be collected involves a high degree of uncertainty. Under these circumstances, the accounting guidance provides that interest income is recognized on a cash basis similar to the cost recovery methodology for nonaccrual loans. The net carrying amounts in the preceding schedule also include the amounts for these loans, which were approximately $40.1 million at September 30, 2012 and $42.6 million at December 31, 2011.

Changes in the accretable yield for PCI loans were as follows:



(In thousands)	Three Months Ended September 30,						Nine Months Ended September 30,
	2012			2011			2012			2011
Balance at beginning of period	$	157,040		$	242,199		$	184,679		$	277,005
Accretion	(25,409		)	(30,568		)	(69,824		)	(93,258		)
Reclassification from nonaccretable difference	9,565			(16		)	25,112			25,896
Disposals and other	3,550			877			4,779			2,849
Balance at end of period	$	144,746		$	212,492		$	144,746		$	212,492

Note: Amounts have been adjusted based on refinements to the original estimates of the accretable yield. Because of the estimation process required, we expect that additional adjustments to these amounts may be necessary in future periods.

The primary driver of reclassifications to accretable yield from nonaccretable difference resulted from changes in estimated cash flows for the acquired loans and loan pools, as discussed subsequently under changes in cash flow estimates.

ALLL Determination

For all acquired loans, the ALLL is only established for credit deterioration subsequent to the date of acquisition and represents our estimate of the inherent losses in excess of the book value of acquired loans. The ALLL for acquired loans is determined without giving consideration to the amounts recoverable from the FDIC through loss sharing agreements. These amounts recoverable are separately accounted for in the FDIC indemnification asset (“IA”) and are thus presented “gross” in the balance sheet. The FDIC IA is included in other assets in the balance sheet and is discussed subsequently. The ALLL is included in the overall ALLL in the balance sheet. The provision for loan losses is reported net of changes in the amounts recoverable under the loss sharing agreements.

During the three and nine months ended September 30, we adjusted the ALLL for acquired loans by recording a (decrease) increase on an adjusted gross basis to the provision for loan losses of $(9.0) million and $(16.3) million in 2012, and $(0.6) million and $(0.3) million in 2011, respectively. These amounts are net of the ALLL reversals due to increases in estimated cash flows which are discussed subsequently. As separately discussed and in accordance with the loss sharing agreements, portions of the increases to the provision are recoverable from the FDIC and comprise part of the FDIC IA. For the three and nine months ended September 30, 2012, these adjustments, before FDIC indemnification, resulted in net recoveries of $1.4 million and $8.1 million, respectively. For the three and nine months ended September 30, 2011 they resulted in net charge-offs of $0.9 million and $11.4 million, respectively.

Changes in the provision for loan losses and related ALLL are driven in large part by the same factors that affect the changes in reclassification from nonaccretable difference to accretable yield, as discussed under changes in cash flow estimates.

Changes in Cash Flow Estimates

Over the life of the loan or loan pool, we continue to estimate cash flows expected to be collected. We evaluate quarterly at the balance sheet date whether the estimated present values of these loans using the effective interest rates have decreased below their carrying values. If so, we record a provision for loan losses.

Table of Contents

ZIONS BANCORPORATION AND SUBSIDIARIES

For increases in carrying values that resulted from better-than-expected cash flows, we use such increases first to reverse any existing ALLL. During the three and nine months ended September 30, total reversals to the ALLL, including the impact of increases in estimated cash flows, were $8.3 million and $18.9 million in 2012, and $3.5 million and $12.6 million in 2011, respectively. When there is no current ALLL, we increase the amount of accretable yield on a prospective basis over the remaining life of the loan and recognize this increase in interest income. Any related decrease to the FDIC IA is recorded through a charge to other noninterest expense. Changes that increase cash flows have been due primarily to (1) the enhanced economic status of borrowers compared to original evaluations, (2) improvements in the Southern California market where the majority of these loans were originated, and (3) stronger efforts by our credit officers and loan workout professionals to resolve problem loans.

For the three and nine months ended September 30, the impact of increased cash flow estimates recognized in the statement of income for acquired loans with no ALLL was approximately $17.6 million and $45.5 million in 2012, and $20.6 million and $61.3 million in 2011, respectively, of additional interest income, and $14.4 million and $35.6 million in 2012, and $15.4 million and $43.5 million in 2011, respectively, of additional other noninterest expense due to the reduction of the FDIC IA.

FDIC Indemnification Asset

In October 2012, the FASB issued ASU 2012-6, Subsequent Accounting for an Indemnification Asset Recognized at the Acquisition Date as a Result of a Government-Assisted Acquisition of a Financial Institution, a consensus of the FASB Emerging Issues Task Force. This new guidance under ASC 805, Business Combinations, provides that a change in measurement of the indemnification asset due to a change in expected cash flows would be accounted for on the same basis as the change in the indemnified loans. Any amortization period for the changes in value would be limited to the lesser of the term of the indemnification agreement and the remaining life of the indemnified loans. The new guidance is effective for interim or annual periods beginning on or after December 15, 2012 and permits early adoption. We do not expect our method of accounting for the FDIC IA to change as a result of this new guidance.

The amount of the FDIC IA was initially recorded at fair value using estimated cash flows based on credit adjustments for each loan or loan pool and the loss sharing reimbursement of 80% or 95%, as appropriate. The timing of the cash flows was adjusted to reflect our expectations to receive the FDIC reimbursements within the estimated loss period. Discount rates were based on U.S. Treasury rates or the AAA composite yield on investment grade bonds of similar maturity. As previously discussed, the amount is adjusted as actual loss experience is developed and estimated losses covered under the loss sharing agreements are updated. Estimated loan losses, if any, in excess of the amounts recoverable are reflected as period expenses through the provision for loan losses.

Changes in the FDIC IA were as follows:



(In thousands)	Three Months Ended September 30,						Nine Months Ended September 30,
(In thousands)	Three Months Ended September 30,						Nine Months Ended September 30,
	2012			2011			2012			2011
Balance at beginning of period	$	117,167		$	150,557		$	133,810		$	195,516
Amounts filed with the FDIC and collected or in process ¹	3,904			1,551			15,106			(11,360		)
Net change in asset balance due to reestimation of projected cash flows ²	(20,165		)	(16,809		)	(48,010		)	(48,857		)
Balance at end of period	$	100,906		$	135,299		$	100,906		$	135,299


¹	Beginning in the latter half of 2011, the FDIC changed its reimbursement process to require that submitted expenses must be paid, not just incurred, to qualify for reimbursement.


²	Negative amounts result from the accretion of loan balances based on increases in cash flow estimates on the underlying indemnified loans.

Any changes to the FDIC IA are recognized immediately in the quarterly period the change in estimated cash flows is determined. All claims submitted to the FDIC have been reimbursed in a timely manner.

Table of Contents

ZIONS BANCORPORATION AND SUBSIDIARIES


6.	DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES

We record all derivatives on the balance sheet at fair value. Note 9 discusses the process to estimate fair value for derivatives. The accounting for changes in the fair value of derivatives depends on the intended use of the derivative and the resulting designation. Derivatives used to hedge the exposure to changes in the fair value of an asset, liability, or firm commitment attributable to a particular risk, such as interest rate risk, are considered fair value hedges. Derivatives used to hedge the exposure to variability in expected future cash flows, or other types of forecasted transactions, are considered cash flow hedges. Derivatives used to manage the exposure to credit risk, which can include total return swaps, are considered credit derivatives. When put in place after purchase of the asset(s) to be protected, these derivatives generally may not be designated as accounting hedges. See discussion following regarding the total return swap and estimation of its fair value.

For derivatives designated as fair value hedges, changes in the fair value of the derivative are recognized in earnings together with changes in the fair value of the related hedged item. The net amount, if any, representing hedge ineffectiveness, is reflected in earnings. In previous periods, we used fair value hedges to manage interest rate exposure to certain long-term debt. These hedges have been terminated and their remaining balances are being amortized into earnings, as discussed subsequently.

For derivatives designated as cash flow hedges, the effective portion of changes in the fair value of the derivative are recorded in OCI and recognized in earnings when the hedged transaction affects earnings. The ineffective portion of changes in the fair value of cash flow hedges is recognized directly in earnings.

No derivatives have been designated for hedges of investments in foreign operations.

We assess the effectiveness of each hedging relationship by comparing the changes in fair value or cash flows on the derivative hedging instrument with the changes in fair value or cash flows on the designated hedged item or transaction. For derivatives not designated as accounting hedges, changes in fair value are recognized in earnings.

Our objectives in using derivatives are to add stability to interest income or expense, to modify the duration of specific assets or liabilities as we consider advisable, to manage exposure to interest rate movements or other identified risks, and/or to directly offset derivatives sold to our customers. To accomplish these objectives, we use interest rate swaps as part of our cash flow hedging strategy. These derivatives are used to hedge the variable cash flows associated with designated commercial loans.

Exposure to credit risk arises from the possibility of nonperformance by counterparties. These counterparties primarily consist of financial institutions that are well established and well capitalized. We control this credit risk through credit approvals, limits, pledges of collateral, and monitoring procedures. No losses on derivative instruments have occurred as a result of counterparty nonperformance. Nevertheless, the related credit risk is considered and measured when and where appropriate.

Our derivative contracts require us to pledge collateral for derivatives that are in a net liability position at a given balance sheet date. Certain of these derivative contracts contain credit-risk-related contingent features that include the requirement to maintain a minimum debt credit rating. We may be required to pledge additional collateral if a credit-risk-related feature were triggered, such as a downgrade of our credit rating. However, in past situations, not all counterparties have demanded that additional collateral be pledged when provided for under their contracts. At September 30, 2012, the fair value of our derivative liabilities was $96.4 million, for which we were required to pledge cash collateral of approximately $104.6 million in the normal course of business. If our credit rating were downgraded by one notch at September 30, 2012, the additional amount of collateral we could be required to pledge is $1 million.

Interest rate swap agreements designated as cash flow hedges involve the receipt of fixed-rate amounts in exchange for variable-rate payments over the life of the agreements without exchange of the underlying principal amount. Derivatives not designated as accounting hedges, including basis swap agreements, are not speculative and are used to economically manage our exposure to interest rate movements and other identified risks, but do not meet the strict hedge accounting requirements.

Table of Contents

ZIONS BANCORPORATION AND SUBSIDIARIES

Selected information with respect to notional amounts and recorded gross fair values at September 30, 2012 and December 31, 2011, and the related gain (loss) of derivative instruments for the three and nine months ended September 30, 2012 and 2011 is summarized as follows:



	September 30, 2012						December 31, 2011
	Notional amount		Fair value				Notional amount		Fair value
(In thousands)	Notional amount		Other assets		Other liabilities		Notional amount		Other assets		Other liabilities
Derivatives designated as hedging instruments
Asset derivatives
Cash flow hedges ¹:
Interest rate swaps	$	150,000	$	2,447	$	—	$	335,000	$	7,341	$	—
Total derivatives designated as hedging instruments	150,000		2,447		—		335,000		7,341		—
Derivatives not designated as hedging instruments
Interest rate swaps	98,524		1,260		1,267		145,388		1,952		1,977
Interest rate swaps for customers ²	2,467,198		84,938		90,074		2,638,601		82,648		87,363
Basis swaps	—		—		—		85,000		3		11
Options contracts	—		—		—		1,700,000		11		—
Total return swap	1,159,686		—		5,048		1,159,686		—		5,422
Total derivatives not designated as hedging instruments	3,725,408		86,198		96,389		5,728,675		84,614		94,773
Total derivatives	$	3,875,408	$	88,645	$	96,389	$	6,063,675	$	91,955	$	94,773



	Three Months Ended September 30, 2012									Nine Months Ended September 30, 2012
	Amount of derivative gain (loss) recognized/reclassified
(In thousands)	OCI		Reclassified from AOCI to interest income		Noninterest income (expense)			Offset to interest expense		OCI		Reclassified from AOCI to interest income			Noninterest income (expense)			Offset to interest expense
Derivatives designated as hedging instruments
Asset derivatives
Cash flow hedges ¹:
Interest rate swaps	$	84	$	2,378	$	—				$	390	$	10,871		$	—
	84		2,378		—					390		10,871		³	—
Liability derivatives
Fair value hedges:
Terminated swaps on long-term debt								$	771									$	2,277
Total derivatives designated as hedging instruments	84		2,378		—			771		390		10,871			—			2,277
Derivatives not designated as hedging instruments
Interest rate swaps					(174		)								(302		)
Interest rate swaps for customers ²					1,331										1,917
Basis swaps					—										18
Futures contracts					(2		)								(12		)
Total return swap					(5,403		)								(16,303		)
Total derivatives not designated as hedging instruments					(4,248		)								(14,682		)
Total derivatives	$	84	$	2,378	$	(4,248	)	$	771	$	390	$	10,871		$	(14,682	)	$	2,277

Table of Contents

ZIONS BANCORPORATION AND SUBSIDIARIES



	Three Months Ended September 30, 2011									Nine Months Ended September 30, 2011
	Amount of derivative gain (loss) recognized/reclassified
(In thousands)	OCI		Reclassified from AOCI to interest income		Noninterest income (expense)			Offset to interest expense		OCI		Reclassified from AOCI to interest income			Noninterest income (expense)			Offset to interest expense
Derivatives designated as hedging instruments
Asset derivatives
Cash flow hedges ¹:
Interest rate swaps	$	585	$	7,471	$	—				$	2,077	$	28,890		$	—
Interest rate floors	38		264		—					221		1,950			—
	623		7,735		—					2,298		30,840		³	—
Liability derivatives
Fair value hedges:
Terminated swaps on long-term debt								$	747									$	2,198
Total derivatives designated as hedging instruments	623		7,735		—			747		2,298		30,840			—			2,198
Derivatives not designated as hedging instruments
Interest rate swaps					181										105
Interest rate swaps for customers ²					(514		)								813
Energy commodity swaps for customers ²					—										56
Basis swaps					4										153
Futures contracts					2,030										6,808
Options contracts					(519		)								(17		)
Total return swap					(5,337		)								(5,337		)
Total derivatives not designated as hedging instruments					(4,155		)								2,581
Total derivatives	$	623	$	7,735	$	(4,155	)	$	747	$	2,298	$	30,840		$	2,581		$	2,198

Note: These tables are not intended to present at any given time the Company’s long/short position with respect to its derivative contracts.

¹Amounts recognized in OCI and reclassified from accumulated OCI (“AOCI”) represent the effective portion of the derivative gain (loss).

²Amounts include both the customer swaps and the offsetting derivative contracts.

³Amounts for the nine months ended September 30, 2012 and 2011 of $10.9 million and $30.8 million, respectively, are the amounts of reclassification to earnings presented in the tabular changes of AOCI in Note 7.

At September 30, the fair values of derivative assets and liabilities were reduced (increased) by net credit valuation adjustments of $5.2 million and $0.1 million in 2012, and $5.4 million and $(0.3) million in 2011, respectively. These adjustments are required to reflect both our own nonperformance risk and the respective counterparty’s nonperformance risk.

Under master netting arrangements, we offset fair value amounts recognized for the right to reclaim cash collateral (a receivable) or the obligation to return cash collateral (a payable) against recognized fair value amounts of derivatives executed with the same counterparty.

We offer to our customers interest rate swaps to assist them in managing their exposure to fluctuating interest rates. Previously, we also offered energy commodity swaps. Upon issuance, all of these customer swaps are immediately “hedged” by offsetting derivative contracts, such that the Company minimizes its net risk exposure resulting from such transactions. Fee income from customer swaps is included in other service charges, commissions and fees. As with other derivative instruments, we have credit risk for any nonperformance by counterparties.

Table of Contents

ZIONS BANCORPORATION AND SUBSIDIARIES

Options contracts were used to economically hedge certain interest rate exposures of previously used Eurodollar futures contracts. All of these contracts expired during the first quarter of 2012.

The remaining balances of any derivative instruments terminated prior to maturity, including amounts in AOCI for swap hedges, are accreted or amortized to interest income or expense over the period to their previously stated maturity dates.

Amounts in AOCI are reclassified to interest income as interest is earned on variable rate loans and as amounts for terminated hedges are accreted or amortized to earnings. For the 12 months following September 30, 2012, we estimate that an additional $5 million will be reclassified.

Total Return Swap

On July 28, 2010, we entered into a total return swap and related interest rate swaps (“TRS”) with Deutsche Bank AG (“DB”) relating to a portfolio of $1.16 billion notional amount of our bank and insurance trust preferred CDOs. As a result of the TRS, DB assumed all of the credit risk of this CDO portfolio, providing timely payment of all scheduled payments of interest and principal when contractually due to the Company (without regard to acceleration or deferral events). The transaction reduced regulatory risk-weighted assets and improved the Company’s risk-based capital ratios.

The transaction did not qualify for hedge accounting and did not change the accounting for the underlying securities, including the quarterly analysis of OTTI and OCI. As a result, future potential OTTI, if any, associated with the underlying securities may not be offset by any valuation adjustment on the swap in the quarter in which OTTI is recognized, and OTTI changes could result in reductions in our regulatory capital ratios, which could be material.

The fair value of the TRS derivative liability was $5.0 million at September 30, 2012 and $5.4 million at December 31, 2011.

Both the fair values of the securities and the fair value of the TRS are dependent upon the projected credit-adjusted cash flows of the securities. The period that we are unable to cancel the transaction has shortened to and will remain at one calendar quarter. Accordingly, absent major changes in these projected cash flows, we expect the value of the TRS liability to continue to approximate its September 30, 2012 fair value. We expect to incur subsequent net quarterly costs of approximately $5.4 million under the TRS, including related interest rate swaps and scheduled payments of interest on the underlying CDOs, as long as the TRS remains in place for this CDO portfolio. Our estimated quarterly expense amount would be impacted by, among other things, changes in the composition of the CDO portfolio included in the transaction and changes over time in the forward London Interbank Offered Rate (“LIBOR”) rate curve. The Company’s costs are also subject to adjustment in the event of future changes in regulatory requirements applicable to DB if we do not then elect to terminate the transaction. Termination by the Company for such regulatory changes applicable to DB will result in no payment by the Company.

At September 30, 2012, we completed a valuation process which resulted in an estimated fair value for the TRS under Level 3. The process utilized valuation inputs from two sources:

The Company built on its fair valuation process for the underlying CDO portfolio and utilized those same projected cash flows to quantify the extent and timing of payments to be received from the Trustee related to each CDO and in the aggregate. For valuation purposes, we assumed that a market participant would cancel the TRS at the first opportunity if the TRS did not have a positive value based on the best estimates of cash flows through maturity. Consequently, the fair value approximated the amount of required payments up to the earliest termination date.


2)	A valuation from a market participant in possession of all relevant terms and costs of the TRS structure.

We considered the observable input or inputs from the market participant, who is the counterparty to this transaction, as well as the results of our internal modeling in estimating the fair value of the TRS. We expect to continue the use of this methodology in subsequent periods.

Table of Contents

ZIONS BANCORPORATION AND SUBSIDIARIES


7.	DEBT AND SHAREHOLDERS’ EQUITY

TARP Redemption

On September 26, 2012, we redeemed the remaining $700 million of the $1.4 billion Series D Fixed-Rate Cumulative Perpetual Preferred Stock issued to the U.S. Department of the Treasury under its Troubled Asset Relief Program (“TARP”) Capital Purchase Program. The first redemption was made on March 28, 2012. The entire redemption was executed following notification from the Federal Reserve Board (“FRB”) on March 13, 2012 that it did not object to the capital actions proposed in our Capital Plan submitted under the FRB’s 2012 Capital Plan Review.

Among other things, our Capital Plan includes the following provisions: (1) completing the entire redemption in 2012 of our TARP preferred stock with the second $700 million redemption meeting specified conditions requiring regulatory approval, including Parent liquidity and other requirements; (2) issuing a total of $600 million in senior debt (see debt issuances and redemption following); (3) redeeming on a timely basis the Company’s $254.9 million variable rate senior medium-term notes (see debt issuances and redemption following); and (4) maintaining for 2012 the current common stock dividend of $0.01 per share per quarter. See also preferred stock issuance and redemption following.

The TARP redemption accelerated the amortization to preferred stock dividends of approximately $33.5 million of unamortized discount during the nine months ended September 30, 2012. This discount was based on the fair value originally estimated for the common stock warrant associated with the TARP preferred stock issuance.

Debt Issuances and Redemption

On March 27, 2012, we issued $300 million of 4.5% senior unsecured medium-term notes at a price of 94.25%. On May 1, 2012, we issued an additional $100 million at a price of 100.249%, bringing the total to $400 million of the 4.5% notes that are due March 27, 2017. On June 20, 2012, we issued $158.45 million of 4.0% senior notes due June 20, 2016 at a price of 97.5%. On August 28, 2012, we issued an additional $20 million of these notes at a price of 100.5%, bringing the total to $178.45 million. Net of commissions, fees and discounts, the proceeds to the Company for these debt issuances were $553.4 million.

On the maturity date of June 21, 2012, we redeemed all $254.9 million of variable rate senior medium-term notes that were guaranteed under the FDIC’s Temporary Liquidity Guarantee Program. We have no other notes outstanding under this program.

During the three and nine months ended September 30, 2012, we issued long-term senior medium-term notes of $29 million and $91 million, respectively, and a short-term medium-term note of $5 million during the first quarter of 2012. The short-term note matures March 2013 and has an interest rate of 2.0%. The long-term notes mature February 2014 through September 2015 and have interest rates of 3.4% and 3.5%. During these same periods, we redeemed at maturity $7 million and $74 million of senior medium-term notes.

Subordinated Debt Conversions

During the three and nine months ended September 30, 2012, $5.4 million and $85.4 million of convertible subordinated debt was converted into depositary shares each representing a 1/40^th interest in a share of the Company’s preferred stock. These conversions added 84,982 shares of Series C and 370 shares of Series A to the Company’s preferred stock.

For the nine months ended September 30, 2012 in connection with these conversions, the $99.9 million added to preferred stock included the transfer from common stock of $14.5 million of the intrinsic value of the beneficial conversion feature. The amount of this conversion feature was included with common stock at the time of the debt modification. The remaining balance in common stock of this conversion feature was approximately $77.3 million at September 30, 2012. Accelerated discount amortization on the converted debt increased interest expense for the three and nine months ended September 30, 2012 by $2.0 million and $30.4 million, respectively. At September 30, 2012, the balance at par of the convertible subordinated debt was $462.0 million. The five largest investor holdings totaled approximately 40% of this amount. The remaining balance of the convertible debt discount was $161.4 million at September 30, 2012.

Table of Contents

ZIONS BANCORPORATION AND SUBSIDIARIES

Preferred Stock Issuance and Redemption

On May 7, 2012, we sold $143.75 million of Series F 7.9% Fixed-Rate Non-Cumulative Perpetual Preferred Stock. The issuance was in the form of depositary shares with each depositary share representing a 1/40^th ownership interest in a share of the preferred stock. The shares are registered with the SEC and qualify as Tier 1 capital. We redeemed on the June 15, 2012 call date all $142.5 million of Series E 11% preferred stock.

Changes in Accumulated Other Comprehensive Income

Changes in accumulated other comprehensive income (loss) are summarized as follows:

(In thousands)	Net unrealized gains (losses) on investments and retained interests				Net unrealized gains (losses) on derivative instruments				Pension and post- retirement			Total
Nine Months Ended September 30, 2012:
Balance at December 31, 2011		$	(546,763	)		$	9,404		$	(54,725	)	$	(592,084	)
Other comprehensive income (loss), net of tax:
Net realized and unrealized holding gains, net of income tax expense of $44,684		72,529										72,529
Reclassification for net losses included in earnings, net of income tax benefit of $4,199		6,428										6,428
Noncredit-related impairment losses on securities not expected to be sold, net of income tax benefit of $9,915		(16,006		)								(16,006		)
Accretion of securities with noncredit-related impairment losses not expected to be sold, net of income tax expense of $472		724										724
Net unrealized losses, net of reclassification to earnings of $10,871 and income tax benefit of $4,153						(6,329		)				(6,329		)
Other comprehensive income (loss)		63,675				(6,329		)	—			57,346
Balance at September 30, 2012		$	(483,088	)		$	3,075		$	(54,725	)	$	(534,738	)

Nine Months Ended September 30, 2011:
Balance at December 31, 2010		$	(456,264	)		$	30,702		$	(35,734	)	$	(461,296	)
Other comprehensive income (loss), net of tax:
Net realized and unrealized holding losses, net of income tax benefit of $55,668		(90,109		)								(90,109		)
Reclassification for net losses included in earnings, net of income tax benefit of $4,063		6,185										6,185
Noncredit-related impairment losses on securities not expected to be sold, net of income tax benefit of $17,058		(26,318		)								(26,318		)
Accretion of securities with noncredit-related impairment losses not expected to be sold, net of income tax expense of $77		131										131
Net unrealized losses, net of reclassification to earnings of $30,840 and income tax benefit of $11,115						(17,427		)				(17,427		)
Other comprehensive loss		(110,111		)		(17,427		)	—			(127,538		)
Balance at September 30, 2011		$	(566,375	)		$	13,275		$	(35,734	)	$	(588,834	)


8.	INCOME TAXES

The income tax expense rates for the three and nine months ended September 30, 2012 were essentially the same or lower than the tax rates for the same periods in 2011 because of a decrease in the nondeductible amount of a portion of the accelerated discount amortization from the conversion of subordinated debt to preferred stock.

The balance of net deferred tax assets was approximately $447 million at September 30, 2012 and $509 million at December 31, 2011. We evaluate the net deferred tax assets on a regular basis to determine whether an additional valuation allowance is required. Based on this evaluation, and considering the weight of the positive evidence compared to the negative evidence, we have concluded that an additional valuation allowance is not required as of September 30, 2012.

Table of Contents

ZIONS BANCORPORATION AND SUBSIDIARIES


9.	FAIR VALUE

Fair Value Measurement

In May 2011, the FASB issued ASU 2011-04, Amendments to Achieve Common Fair Value Measurement and Disclosure Requirements in U.S. GAAP and IFRSs. This new accounting guidance under ASC 820, Fair Value Measurement, provides convergence to IFRS and amends fair value measurement and disclosure guidance. Among other things, new disclosures are required for qualitative information and sensitivity analysis regarding Level 3 measurements. We adopted this new guidance effective January 1, 2012 as required and have incorporated it into the following disclosures.

Fair value is defined as the exchange price that would be received for an asset or paid to transfer a liability (an exit price) in the principal or most advantageous market for the asset or liability in an orderly transaction between market participants on the measurement date. To measure fair value, a hierarchy has been established that requires an entity to maximize the use of observable inputs and minimize the use of unobservable inputs. This hierarchy uses three levels of inputs to measure the fair value of assets and liabilities as follows:

Level 1 – Quoted prices in active markets for identical assets or liabilities; includes U.S. Treasury and other U.S. Government and agency securities actively traded in over-the-counter markets; mutual funds and stock; securities sold, not yet purchased; and certain derivatives.

Level 2 – Observable inputs other than Level 1 including quoted prices for similar assets or liabilities, quoted prices in less active markets, or other observable inputs that can be corroborated by observable market data; also includes derivative contracts whose value is determined using a pricing model with observable market inputs or can be derived principally from or corroborated by observable market data. This category generally includes U.S. Government and agency securities; municipal securities; CDO securities; mutual funds and stock; private equity investments; securities sold, not yet purchased; and derivatives.

Level 3 – Unobservable inputs supported by little or no market activity for financial instruments whose value is determined using pricing models, discounted cash flow methodologies, or similar techniques, as well as instruments for which the determination of fair value requires significant management judgment or estimation; also includes observable inputs for nonbinding single dealer quotes not corroborated by observable market data. This category generally includes municipal securities; private equity investments; most CDO securities; and the total return swap.

We use fair value to measure certain assets and liabilities on a recurring basis when fair value is the primary measure for accounting. This is done primarily for AFS and trading investment securities; private equity investments; securities sold, not yet purchased; and derivatives. Fair value is used on a nonrecurring basis to measure certain assets when applying lower of cost or market accounting or when adjusting carrying values, such as for loans held for sale, impaired loans, and OREO. Fair value is also used when evaluating impairment on certain assets, including HTM and AFS securities, goodwill, core deposit and other intangibles, long-lived assets, and for disclosures of certain financial instruments.

Level 3 Valuation Policies and Procedures

Our valuation policies and procedures for Level 3 securities are under the direction of the Securities Valuation and Securitization Oversight Committee (“SOC”) comprised of senior and executive members of management in our investment, financial and accounting operations. The SOC is chaired by our chief financial officer and reports to the Audit Committee of the Board of Directors. The major function of the SOC is to develop, review, and approve for use on a quarterly basis the key model inputs, critical valuation assumptions and proposed discount rates utilized for the valuation of Level 3 securities. The sources of fair value changes are presented to the SOC and attribution analyses are completed when significant changes occur between quarters. SOC procedures require that back testing of certain significant assumptions be provided quarterly. Observers from Risk Management, Internal Audit and other areas participate in and attend SOC meetings.

The Model Control Committee is responsible for model validation and related policies. This Committee is separate from the SOC and is part of the Corporate Risk Management department. Committee members are drawn from quantitative experts throughout the Company. The Committee conducts model validations, including the trust preferred CDO internal model discussed subsequently, and sets policies and procedures for revalidation timing.

Table of Contents

ZIONS BANCORPORATION AND SUBSIDIARIES

Utilization of Third Party Service Providers

We use third party service providers and a licensed internal third party model to estimate fair value for certain of our AFS securities as follows:

For AFS Level 2 securities, we use a third party pricing service to provide pricing, if available, for securities in the following reporting categories: U.S. Treasury, agencies and corporations (except Federal Agricultural Mortgage Corporation (“FAMC”) securities); municipal securities; trust preferred – banks and insurance; and other (including ABS CDOs). At September 30, 2012, the fair value of AFS Level 2 securities for which we obtained pricing from the third party pricing service in these reporting categories amounted to approximately $1.7 billion of the $1.9 billion total of AFS Level 2 securities.

For AFS Level 3 securities, we use other third party service providers to provide pricing, if available, for securities in the following reporting categories: trust preferred – banks and insurance, trust preferred – real estate investment trusts, auction rate, and other (including ABS CDOs). At September 30, 2012, the fair value of AFS Level 3 securities for which we obtained pricing from these third party service providers in these reporting categories amounted to approximately $57 million of the $1.0 billion total of AFS Level 3 securities. In addition, the fair values for approximately $942 million at September 30, 2012 of our AFS Level 3 securities were determined utilizing a licensed internal third party model. See “Trust preferred CDO internal model” discussed subsequently.

Fair values of the remaining AFS Level 2 and Level 3 securities not valued by pricing from third party services or the licensed internal third party model were determined by us using market corroborative data. At September 30, 2012, the Level 2 securities consisted of approximately $117 million of FAMC securities and $6 million of mutual funds and stock, and the Level 3 securities consisted of $16 million of municipal securities and $29 million of ABS CDOs. Estimation of the fair values of the FAMC securities included the use of a standard mortgage pass-through calculator that incorporates discounted cash flows, while the municipal securities included the use of a standard form discounted cash flow model with certain inputs adjusted for market conditions.

For AFS Level 2 securities, the third party pricing service provides documentation on an ongoing basis that includes, among other things, pricing information with respect to reference data, methodology, inputs summarized by asset class, pricing application, corroborative information, etc. The documentation includes benchmark yields, reported trades, broker/dealer quotes, issuer spreads, two-sided markets, benchmark securities, bids, offers, and reference data including market research publications. Also included are data from the vendor trading platform. We review, test and validate this information as appropriate.

For AFS Level 3 securities, SOC procedures call for quarterly comparisons of assumptions with other third party service providers, and with our internal models and presentation of information about market trends and trading data. This includes information regarding trading prices, implied discounts, outlier information, valuation assumptions, etc.

Because of the timeliness of our involvement, the ongoing exchange of market information, and our agreement on input assumptions, we do not adjust prices from our third party service providers. The procedures discussed previously help ensure that the fair value information received was determined in accordance with applicable accounting guidance.

Available-for-Sale and Trading

AFS and trading investment securities are fair valued under Level 1 using quoted market prices when available for identical securities. When quoted prices are not available, fair values are determined under Level 2 using quoted prices for similar securities or independent pricing services that incorporate observable market data. The largest portion of AFS securities include certain CDOs backed by trust preferred securities issued by banks and insurance companies and, to a lesser extent, by REITs. These securities are fair valued primarily under Level 3.

U.S. Treasury, Agencies and Corporations

Valuation inputs under Level 2 utilized by the third party service provider are discussed previously.

Municipal Securities

Valuation inputs under Level 2 utilized by the third party service provider are discussed previously. We may also include reported trades and material event notices from the Municipal Securities Rulemaking Board, plus new issue

Table of Contents

ZIONS BANCORPORATION AND SUBSIDIARIES

data. Municipal securities under Level 3 are fair valued similar to the auction rate securities.

Trust Preferred Collateralized Debt Obligations

Substantially all of the CDO portfolio is fair valued using an income-based cash flow modeling approach incorporating several methodologies that primarily include internal and third party models.

Trust preferred CDO internal model: A licensed third party cash flow model, which requires the Company to input its own key valuation assumptions, is used to estimate fair values of bank and insurance trust preferred CDOs. We utilize a statistical regression of quarterly regulatory ratios that we have identified as predictive of future bank failures to create a credit-specific probability of default (“PD”) for each bank issuer. The inputs are updated quarterly to include the most recent available financial ratios and the regression formula is updated periodically to utilize those financial ratios that have best predicted bank failures during this credit cycle (“ratio-based approach”). Our ratio-based approach, while generally referencing trailing quarter regulatory data and ratios, seeks to incorporate the most recent available information.

Approximately 30% of the bank issuers are public companies included in a third party proprietary reduced form model. The model generates PDs using equity valuation-related inputs along with other macro and issuer-specific inputs. We use the higher of the PD from the third party proprietary reduced form model and the ratio-based approach.

We use a floor PD of 30 basis points (“bps”) for year one for collateral where the higher of the one-year PDs from our ratio based approach and those from the third party proprietary reduced form model would be lower. The short-term 30 bps PD is similar to the PD we would apply if we had direct lending exposures to CDO pool collateral. We use a floor PD of 48 bps each year from years two to five smoothing the step-up to reach a 65 bps minimum PD for year six. We utilize a minimum PD for years six to maturity of 65 bps for bank collateral.

The resulting five-year PDs at September 30, 2012 ranged from 100% for the “worst” deferring banks to 2.18% for the “best” deferring banks. The weighted average assumed loss rate on deferring collateral was 21% at September 30, 2012 and 24% at June 30, 2012. This loss rate is calculated as a percentage of the par amount of deferring collateral within a pool that is expected to default prior to the end of a five-year deferral period. The model includes the expectation that deferrals that do not default will pay their contractually required back interest and return to a current status at the end of five years. Estimates of expected loss for the individual pieces of underlying collateral are aggregated to arrive at a pool-level expected loss rate for each CDO. These loss assumptions are applied to the CDO’s structure to generate cash flow projections for each tranche of the CDO.

We utilize a present value technique to identify both the OTTI present in the CDO tranches and to estimate fair value. To determine the credit-related portion of OTTI in accordance with applicable accounting guidance, we use the security specific effective interest rate when estimating the present value of cash flows. We discount the credit-adjusted cash flow of each CDO tranche at a tranche-specific discount rate which reflects the risk that the actual cash flow may vary from the expected credit-adjusted cash flow for that CDO tranche. This rate is consistent with market participants’ assumptions, which include market illiquidity, and is applied to credit adjusted cash flows. We follow applicable guidance on illiquid markets such that risk premiums should be reflective of an orderly transaction between market participants under current market conditions. Because these securities are not traded on exchanges and trading prices are not posted on the TRACE^® system (Trade Reporting and Compliance Engine^®), we also seek information from market participants to obtain trade price information.

The discount rate assumption used for valuation purposes for each CDO tranche is derived from trading yields on publicly traded trust preferred securities and projected PDs on the underlying issuers as well as observed trades in our CDO tranches in accordance with applicable accounting guidance. The data set generally includes one or more publicly-traded trust preferred securities in deferral with regard to the payment of current interest and observed trades in our CDO tranches which appeared to be either orderly (that is, not distressed or forced); or whose orderliness could not be definitively refuted. Trading data is generally limited to a single transaction in each of several of our original AAA-rated tranches and several of our original A-rated tranches. The effective yields on the securities are then used to determine a relationship between the effective yield and expected loss. Expected loss for this purpose is a measure of the variability of cash flows from the mean estimate of cash flow across all Monte Carlo simulations. This relationship is then considered along with other third party or market data in order to identify appropriate discount rates to be applied to the CDOs.

Table of Contents

ZIONS BANCORPORATION AND SUBSIDIARIES

Our September 30, 2012, valuations for bank and insurance tranches utilized a discount rate range of LIBOR + 3.75% for the highest quality/most over-collateralized insurance-only tranches and LIBOR + 40.8% for the lowest credit quality tranche, which included bank collateral, in order to reflect market level assumptions for structured finance securities. For tranches that include bank collateral, the discount rate was at least LIBOR + 4.6% for the highest quality/most over-collateralized tranches. These discount rates are applied to already credit-adjusted cash flows for each tranche.

CDO tranches with greater uncertainty in their cash flows are discounted at rates higher than those market participants would use for tranches with more stable expected cash flows (e.g., as a result of more subordination and/or better credit quality in the underlying collateral). The high end of the discount rate spectrum was applied to tranches in which minor changes in default assumption timing produced substantial deterioration in tranche cash flows. These discount rates are applied to credit-adjusted cash flows, which constitute each tranche’s expected cash flows; discount rates are not applied to a hypothetical contractual cash flow.

At September 30, 2012, the discount rates utilized for fair value purposes for tranches that include bank collateral were:

1)LIBOR + 4.6% to 10.4% and averaged LIBOR + 5.1% for first priority original AAA-rated bonds;

2)LIBOR + 4.6% to 7.3% and averaged LIBOR + 5.2% for lower priority original AAA-rated bonds;

3)LIBOR + 5.3% to 25.4% and averaged LIBOR + 15.6% for original A-rated bonds; and

4)LIBOR + 13.8% to 40.8% and averaged LIBOR + 31.5% for original BBB-rated bonds.

Accordingly, the wide difference between the effective interest rate used in the determination of the credit component of OTTI and the discount rate on the CDOs used in the determination of fair value results in the unrealized losses. The discount rate used for fair value purposes significantly exceeds the effective interest rate for the CDOs. The differences average approximately 4% for the original AAA-rated CDO tranches, 14% for the original A-rated CDO tranches, and 29% for the original BBB-rated CDO tranches. With the exception of certain of the most senior CDOs, most of the principal payments are not expected prior to the final maturity date, which is generally 2029 or later. High market discount rates and the long maturities of the CDO tranches result in full principal repayment contributing little to CDO tranche fair values.

Certain REIT and ABS CDOs are fair valued by third party services using their proprietary models. These models utilize relevant data assumptions, which we evaluate for reasonableness. These assumptions include, but are not limited to, discount rates, PDs, loss-given-default rates, over-collateralization levels, and rating transition probability matrices from rating agencies. See subsequent discussion regarding key model inputs and assumptions. The model prices obtained from third party services are evaluated for reasonableness including quarter to quarter changes in assumptions and comparison to other available data, which included third party and internal model results and valuations.

Auction Rate Securities

Our market approach methodology includes various data inputs, including AAA municipal and corporate bond yield curves, credit ratings and leverage of each closed-end fund, and market yields for municipal bonds and commercial paper.

Private Equity Investments

Private equity investments valued under Level 2 on a recurring basis are investments in partnerships that invest in certain financial services and real estate companies, some of which are publicly traded. Fair values are determined from net asset values, or their equivalents, provided by the partnerships. These fair values are determined on the last business day of the month using values from the primary exchange. In the case of illiquid or nontraded assets, the partnerships obtain fair values from independent sources. We have no unfunded commitments to these partnerships and redemption is available annually.

Private equity investments valued under Level 3 on a recurring basis are recorded initially at acquisition cost, which is considered the best indication of fair value unless there have been material subsequent positive or negative developments that justify an adjustment in the fair value estimate. Subsequent adjustments to recorded fair values are based as necessary

Table of Contents

ZIONS BANCORPORATION AND SUBSIDIARIES

on current and projected financial performance, recent financing activities, economic and market conditions, market comparables, market liquidity, sales restrictions, and other factors. Management who are familiar with the investments, including investment officers, controllers, etc., review quarterly the financial statements and other information for each investment. The Other Equity Investments Committee, consisting of the chief executive officer, the chief financial officer, and the chief investment officer, review periodically for reasonableness the financial information for these investments. This includes the review of audited financial statements which are available for nearly all of the underlying investments.

Derivatives

Derivatives are fair valued according to their classification as either exchange-traded or over-the-counter (“OTC”). Exchange-traded derivatives consist of forward currency exchange contracts that have been fair valued under Level 1 because they are traded in active markets. OTC derivatives, including those for customers, consist of interest rate swaps and options. These derivatives are fair valued under Level 2 using third party services. Observable market inputs include yield curves (the LIBOR swap curve and applicable basis swap curves), foreign exchange rates, commodity prices, option volatilities, counterparty credit risk, and other related data. Credit valuation adjustments are required to reflect both our own nonperformance risk and the respective counterparty’s nonperformance risk. These adjustments are determined generally by applying a credit spread for the counterparty or the Company as appropriate to the total expected exposure of the derivative. Amounts disclosed in the following schedules differ from the presentation in Note 6 in that they include the foreign currency exchange contracts and are presented net of cash collateral offsets. The estimation of fair value of the total return swap is discussed in Note 6.

Securities Sold, Not Yet Purchased

Securities sold, not yet purchased are fair valued under Level 1 when quoted prices are available for the securities involved. Those under Level 2 are fair valued similar to trading account investment securities.

Table of Contents

ZIONS BANCORPORATION AND SUBSIDIARIES

Quantitative Disclosure of Fair Value Measurements

Assets and liabilities measured at fair value by class on a recurring basis are summarized as follows:



(In thousands)	September 30, 2012
	Level 1		Level 2		Level 3		Total
ASSETS
Investment securities:
Available-for-sale:
U.S. Treasury, agencies and corporations	$	3,101	$	1,759,720			$	1,762,821
Municipal securities			97,324		$	16,323	113,647
Asset-backed securities:
Trust preferred – banks and insurance			184		965,104		965,288
Trust preferred – real estate investment trusts					15,407		15,407
Auction rate					7,113		7,113
Other (including ABS CDOs)			5,221		40,154		45,375
Mutual funds and stock	211,725		5,816				217,541
	214,826		1,868,265		1,044,101		3,127,192
Trading account			13,963				13,963
Other noninterest-bearing investments:
Private equity			5,179		128,291		133,470
Other assets:
Derivatives:
Interest rate related and other			4,549				4,549
Interest rate swaps for customers			84,938				84,938
Foreign currency exchange contracts	2,525						2,525
	2,525		89,487				92,012
	$	217,351	$	1,976,894	$	1,172,392	$	3,366,637
LIABILITIES
Securities sold, not yet purchased	$	21,708					$	21,708
Other liabilities:
Derivatives:
Interest rate related and other			1,533				1,533
Interest rate swaps for customers			90,074				90,074
Foreign currency exchange contracts	1,637						1,637
Total return swap					$	5,048	5,048
	1,637		91,607		5,048		98,292
Other					128		128
	$	23,345	$	91,607	$	5,176	$	120,128

Table of Contents

ZIONS BANCORPORATION AND SUBSIDIARIES



(In thousands)	December 31, 2011
	Level 1		Level 2		Level 3		Total
ASSETS
Investment securities:
Available-for-sale:
U.S. Treasury, agencies and corporations	$	3,103	$	1,874,010			$	1,877,113
Municipal securities			104,787		$	17,381	122,168
Asset-backed securities:
Trust preferred – banks and insurance			354		929,356		929,710
Trust preferred – real estate investment trusts					18,645		18,645
Auction rate					70,020		70,020
Other (including ABS CDOs)			6,826		43,546		50,372
Mutual funds and stock	156,829		5,938				162,767
	159,932		1,991,915		1,078,948		3,230,795
Trading account			40,273				40,273
Other noninterest-bearing investments:
Private equity			5,339		128,348		133,687
Other assets:
Derivatives:
Interest rate related and other			9,560				9,560
Interest rate swaps for customers			82,648				82,648
Foreign currency exchange contracts	6,498						6,498
	6,498		92,208				98,706
	$	166,430	$	2,129,735	$	1,207,296	$	3,503,461
LIABILITIES
Securities sold, not yet purchased	$	13,098	$	31,388			$	44,486
Other liabilities:
Derivatives:
Interest rate related and other			734				734
Interest rate swaps for customers			87,363				87,363
Foreign currency exchange contracts	6,046						6,046
Total return swap					$	5,422	5,422
	6,046		88,097		5,422		99,565
Other					86		86
	$	19,144	$	119,485	$	5,508	$	144,137

No transfers of assets and liabilities occurred among Levels 1, 2 or 3 for the three and nine months ended September 30, 2012 and 2011.

Key Model Inputs and Assumptions

Key model unobservable input assumptions used to fair value certain asset-backed securities by class under Level 3 include the following at September 30, 2012:

Table of Contents

ZIONS BANCORPORATION AND SUBSIDIARIES



(Dollars in thousands)	Fair value at September 30, 2012			Valuation approach	Constant default rate (“CDR”)	Loss severity	Prepayment rate
Asset-backed securities:
Trust preferred – predominantly banks	$	811,713		Income	Pool specific ³	100%	Pool specific ⁷
Trust preferred – predominantly insurance	253,069			Income	Pool specific ⁴	100%	4.5% per year
Trust preferred – individual banks	19,058			Market
	1,083,840		¹
Trust preferred – real estate investment trusts	15,407			Income	Pool specific ⁵	60-100%	0% per year
Other (including ABS CDOs)	52,979		²	Income	Collateral specific ⁶	57-100%	Collateral weighted average life

¹Includes $965.1 million of AFS securities and $118.7 million of HTM securities.

²Includes $40.2 million of AFS securities and $12.8 million of HTM securities.

³CDR ranges: yr 1 – 0.30% to 8.53%; yrs 2-5 – 0.47% to 0.72%; yrs 6 to maturity – 0.58% to 0.70%.

⁴CDR ranges: yr 1 – 0.30% to 1.34%; yrs 2-5 – 0.47% to 0.48%; yrs 6 to maturity – 0.50% to 0.54%.

⁵CDR ranges: yr 1 – 5.1% to 8.4%; yrs 2-3 – 4.3% to 6.2%; yrs 4-6 – 1.0%; yrs 6 to maturity – 0.50%.

⁶These are predominantly ABS CDOs whose collateral is rated. CDR and loss severities are built up from the loan level and vary by collateral ratings, asset class, and vintage.

⁷Constant Prepayment Rate (“CPR”) ranges: 3.0% to 20.68% annually until 2016; 2016 to maturity – 3.0% annually.

The fair value of the Level 3 bank and insurance CDO portfolio would generally be adversely affected by significant increases in the CDR for performing collateral, the loss percentage expected from deferring collateral, and the discount rate used. The fair value of the portfolio would generally be positively affected by increases in interest rates and prepayment rates. For a specific tranche within a CDO, the directionality of the fair value change for a given assumption change may differ depending on the seniority level of the tranche. For example, faster prepayment may increase the fair value of a senior most tranche of a CDO while decreasing the fair value of a more junior tranche.

The following presents the percentage of total fair value of predominantly bank trust preferred CDOs by vintage year (origination date) according to original rating:



(Dollars in thousands)
	Fair value at September 30, 2012		Percentage of total fair value according to original rating						Percentage of total fair value by vintage
Vintage year			Percentage of total fair value according to original rating
Vintage year			AAA		A		BBB
2001	$	48,744	4.8	%	1.1	%	0.1	%		6.0	%
2002	253,291		29.3		1.9		—			31.2
2003	279,913		25.4		9.2		—			34.6
2004	134,004		8.4		8.1		—			16.5
2005	13,863		1.0		0.7		—			1.7
2006	42,531		2.9		2.1		0.2			5.2
2007	39,367		4.8		—		—			4.8
	$	811,713	76.6	%	23.1	%	0.3	%		100.0	%

Reconciliation of Level 3 Fair Value Measurements

The following reconciles the beginning and ending balances of assets and liabilities that are measured at fair value by class on a recurring basis using Level 3 inputs:

Table of Contents

ZIONS BANCORPORATION AND SUBSIDIARIES



	Level 3 Instruments
	Three Months Ended September 30, 2012
(In thousands)	Municipal securities			Trust preferred – banks and insurance			Trust preferred – REIT		Auction rate			Other asset-backed			Private equity investments			Derivatives			Other liabilities
Balance at June 30, 2012	$	16,360		$	926,450		$	14,431	$	7,166		$	40,666		$	121,488		$	(5,337	)	$	(121	)
Total net gains (losses) included in:
Statement of income:
Accretion of purchase discount on securities available-for-sale	18			1,239			61		1			53
Dividends and other investment income															5,382
Equity securities gains, net															12,254
Fixed income securities gains, net	9			3,004								11
Net impairment losses on investment securities				(2,079		)
Other noninterest expense																					(7		)
Other comprehensive income (loss)	136			55,962			915		(4		)	2,418
Purchases															5,659
Sales															(3,548		)
Redemptions and paydowns	(200		)	(19,472		)			(50		)	(2,994		)	(12,944		)	289
Balance at September 30, 2012	$	16,323		$	965,104		$	15,407	$	7,113		$	40,154		$	128,291		$	(5,048	)	$	(128	)



	Level 3 Instruments
	Nine Months Ended September 30, 2012
(In thousands)	Municipal securities			Trust preferred – banks and insurance			Trust preferred – REIT			Auction rate			Other asset-backed			Private equity investments			Derivatives			Other liabilities
Balance at December 31, 2011	$	17,381		$	929,356		$	18,645		$	70,020		$	43,546		$	128,348		$	(5,422	)	$	(86	)
Total net gains (losses) included in:
Statement of income:
Accretion of purchase discount on securities available-for-sale	82			6,267			162			3			213
Dividends and other investment income																13,941
Equity securities gains, net																11,629
Fixed income securities gains (losses), net	9			10,780						4,134			(5,762		)
Net impairment losses on investment securities				(19,255		)
Other noninterest expense																						(42		)
Other comprehensive income (loss)	(499		)	89,695			(3,400		)	1,331			8,301
Purchases																13,038
Sales																(18,266		)
Redemptions and paydowns	(650		)	(51,739		)				(68,375		)	(6,144		)	(20,399		)	374
Balance at September 30, 2012	$	16,323		$	965,104		$	15,407		$	7,113		$	40,154		$	128,291		$	(5,048	)	$	(128	)

Table of Contents

ZIONS BANCORPORATION AND SUBSIDIARIES



	Level 3 Instruments
	Three Months Ended September 30, 2011
(In thousands)	Municipal securities			Trust preferred – banks and insurance			Trust preferred – REIT		Auction rate			Other asset-backed			Private equity investments			Derivatives			Other liabilities
Balance at June 30, 2011	$	18,862		$	1,097,917		$	19,131	$	91,104		$	45,376		$	136,079		$	(5,420	)	$	(442	)
Total net gains (losses) included in:
Statement of income:
Accretion of purchase discount on securities available-for-sale	21			1,127					1			66
Dividends and other investment income															1,735
Equity securities losses, net
Fixed income securities gains, net	19			11,771					1,018			10
Net impairment losses on investment securities				(10,647		)						(1,919		)
Other noninterest expense																					384
Other comprehensive income (loss)	(530		)	(123,705		)	355		(522		)	2,832
Purchases															3,127
Sales															(9,331		)
Redemptions and paydowns	(200		)	(48,836		)			(20,950		)	(2,170		)	(1,410		)	150
Balance at September 30, 2011	$	18,172		$	927,627		$	19,486	$	70,651		$	44,195		$	130,200		$	(5,270	)	$	(58	)



	Level 3 Instruments
	Nine Months Ended September 30, 2011
(In thousands)	Municipal securities			Trust preferred – banks and insurance			Trust preferred – REIT			Auction rate			Other asset-backed			Private equity investments			Derivatives			Other liabilities
Balance at December 31, 2010	$	22,289		$	1,241,694		$	19,165		$	109,609		$	69,630		$	141,690		$	(15,925	)	$	(561	)
Total net gains (losses) included in:
Statement of income:
Accretion of purchase discount on securities available-for-sale	211			4,017						10			139
Dividends and other investment income																7,300
Equity securities losses, net																(738		)
Fixed income securities gains (losses), net	37			18,834			(3,605		)	1,900			(6,918		)
Net impairment losses on investment securities				(15,513		)	(1,285		)				(4,031		)
Other noninterest expense																						503
Other comprehensive income (loss)	(1,045		)	(181,598		)	5,749			(583		)	9,232
Purchases																15,926
Sales	(895		)	(72,881		)	(538		)	(135		)	(19,310		)	(16,617		)
Redemptions and paydowns	(2,425		)	(66,926		)				(40,150		)	(4,547		)	(17,361		)	10,655
Balance at September 30, 2011	$	18,172		$	927,627		$	19,486		$	70,651		$	44,195		$	130,200		$	(5,270	)	$	(58	)

Table of Contents

ZIONS BANCORPORATION AND SUBSIDIARIES

The preceding reconciling amounts using Level 3 inputs include the following realized gains (losses):



(In thousands)	Three Months Ended September 30,				Nine Months Ended September 30,
(In thousands)	Three Months Ended September 30,				Nine Months Ended September 30,
	2012		2011		2012		2011
Dividends and other investment income	$	2,125	$	2,245	$	6,641	$	5,495
Fixed income securities gains (losses), net	3,024		12,818		9,161		10,248

Nonrecurring Fair Value Measurements

Included in the balance sheet amounts are the following amounts of assets that had fair value changes measured on a nonrecurring basis.



(In thousands)	Fair value at September 30, 2012								Fair value at December 31, 2011
(In thousands)	Level 1		Level 2		Level 3		Total		Level 1		Level 2		Level 3		Total
ASSETS
HTM securities adjusted for OTTI	$	—	$	—	$	19,912	$	19,912	$	—	$	—	$	8,308	$	8,308
Impaired loans	—		10,570		—		10,570		—		3,615		—		3,615
Other real estate owned	—		52,167		—		52,167		—		55,957		—		55,957
	$	—	$	62,737	$	19,912	$	82,649	$	—	$	59,572	$	8,308	$	67,880



	Gains (losses) from fair value changes
(In thousands)	Three Months Ended September 30,						Nine Months Ended September 30,
	2012			2011			2012			2011
ASSETS
HTM securities adjusted for OTTI	$	(657	)	$	(769	)	$	(998	)	$	(769	)
Impaired loans	(818		)	(371		)	(3,859		)	(5,844		)
Other real estate owned	(5,499		)	(19,950		)	(14,707		)	(46,095		)
	$	(6,974	)	$	(21,090	)	$	(19,564	)	$	(52,708	)

During the three and nine months ended September 30, we recognized net gains of $5.6 million and $11.4 million in 2012, and $2.5 million and $13.4 million in 2011, respectively, from the sale of OREO properties that had a carrying value at the time of sale of approximately $126 million and $217 million during the nine months ended September 30, 2012 and 2011, respectively. Previous to their sale during the three- and nine-month periods, we recognized impairment on these properties of $3.3 million and $7.2 million in 2012, and $6.7 million and $21.4 million in 2011, respectively.

Impaired (or nonperforming) loans that are collateral-dependent are fair valued under Level 2 based on the fair value of the collateral. OREO is fair valued under Level 2 at the lower of cost or fair value based on property appraisals at the time the property is recorded in OREO and as appropriate thereafter.

Measurement of impairment for collateral-dependent loans and OREO is based on third party appraisals that utilize one or more valuation techniques (income, market and/or cost approaches). Any adjustments to calculated fair value are made based on recently completed and validated third party appraisals, third party appraisal services, automated valuation services, or our informed judgment. Evaluations are made to determine that the appraisal process meets the relevant concepts and requirements of applicable accounting guidance.

Automated valuation services may be used primarily for residential properties when values from any of the previous methods were not available within 90 days of the balance sheet date. These services use models based on market, economic, and demographic values. The use of these models has only occurred in a very few instances and the related property valuations have not been significant to consider disclosure under Level 3 rather than Level 2.

Table of Contents

ZIONS BANCORPORATION AND SUBSIDIARIES

Impaired loans not collateral-dependent are fair valued based on the present value of future cash flows discounted at the expected coupon rates over the lives of the loans. Because the loans were not discounted at market interest rates, the valuations do not represent fair value and have been excluded from the nonrecurring fair value balance in the preceding schedules.

Fair Value of Certain Financial Instruments

Following is a summary of the carrying values and estimated fair values of certain financial instruments:



	September 30, 2012				December 31, 2011
(In thousands)	Carrying value		Estimated fair value		Carrying value		Estimated fair value
Financial assets:
HTM investment securities	$	740,738	$	655,768	$	807,804	$	729,974
Loans and leases (including loans held for sale), net of allowance	36,465,718		36,624,062		36,296,284		36,006,619
Financial liabilities:
Time deposits	3,107,815		3,137,538		3,413,550		3,444,189
Foreign deposits	1,398,749		1,398,296		1,575,361		1,574,271
Other short-term borrowings	6,608		6,636		70,273		70,387
Long-term debt (less fair value hedges)	2,318,092		2,652,991		1,943,618		2,225,078

This summary excludes financial assets and liabilities for which carrying value approximates fair value. For financial assets, these include cash and due from banks and money market investments. For financial liabilities, these include demand, savings and money market deposits, and federal funds purchased and security repurchase agreements. The estimated fair value of demand, savings and money market deposits is the amount payable on demand at the reporting date. Carrying value is used because the accounts have no stated maturity and the customer has the ability to withdraw funds immediately. Also excluded from the summary are financial instruments recorded at fair value on a recurring basis, as previously described.

HTM investment securities primarily consist of municipal securities and bank and insurance trust preferred CDOs. HTM municipal securities are fair valued under Level 3 using a standard form discounted cash flow model as discussed previously and the valuation inputs described under auction rate securities. HTM bank and insurance trust preferred CDOs are fair valued using the licensed internal third party model described previously.

The fair value of loans is estimated according to their status as nonimpaired or impaired. For nonimpaired loans, the fair value is estimated by discounting future cash flows using the LIBOR yield curve adjusted by a factor which reflects the credit and interest rate risk inherent in the loan. These future cash flows are then reduced by the estimated “life-of-the-loan” aggregate credit losses in the loan portfolio. These adjustments for lifetime future credit losses are derived from the methods used to estimate the ALLL for our loan portfolio and are adjusted quarterly as necessary to reflect the most recent loss experience. Impaired loans are already considered to be held at fair value, except those whose fair value is determined by discounting cash flows, as discussed previously. See Impaired Loans in Note 5 for details on the impairment measurement method for impaired loans. Loans, other than those held for sale, are not normally purchased and sold by the Company, and there are no active trading markets for most of this portfolio. Accordingly, our estimates of fair value for loans are categorized as Level 3.

The fair values of time and foreign deposits, other short-term borrowings, and long-term debt are estimated under Level 2. Time and foreign deposits, and other short-term borrowings, are fair valued by discounting future cash flows using the LIBOR yield curve to the given maturity dates. Long-term debt is fair valued based on actual market trades (i.e., an asset value) when available, or discounting cash flows to maturity using the LIBOR yield curve adjusted for credit spreads.

These fair value disclosures represent our best estimates based on relevant market information and information about the financial instruments. Fair value estimates are based on judgments regarding future expected loss experience, current economic conditions, risk characteristics of the various instruments, and other factors. These estimates are subjective in nature and involve uncertainties and matters of significant judgment and therefore cannot be determined with precision. Changes in the above methodologies and assumptions could significantly affect the estimates.

Table of Contents

ZIONS BANCORPORATION AND SUBSIDIARIES

Further, certain financial instruments and all nonfinancial instruments are excluded from the applicable disclosure requirements. Therefore, the fair value amounts shown in the schedule do not, by themselves, represent the underlying value of the Company as a whole.


10.	GUARANTEES, COMMITMENTS AND CONTINGENCIES

Guarantees

The following are guarantees issued by the Company:



(In thousands)	September 30, 2012		December 31, 2011
Standby letters of credit:
Financial	$	856,360	$	914,986
Performance	182,216		165,298
	$	1,038,576	$	1,080,284

The Company’s 2011 Annual Report on Form 10-K contains further information about these letters of credit including their terms and collateral requirements. At September 30, 2012, the Company had recorded approximately $12.0 million as a liability for these guarantees, which consisted of $7.9 million attributable to the reserve for unfunded lending commitments and $4.1 million of deferred commitment fees.

As of September 30, 2012, the Parent has guaranteed approximately $300 million of debt of affiliated trusts issuing trust preferred securities.

Legal Matters

We are subject to litigation in court and arbitral proceedings, as well as proceedings, investigations, examinations and other actions brought or considered by governmental and self-regulatory agencies. At any given time, litigation may relate to lending, deposit and other customer relationships, vendor and contractual issues, employee matters, intellectual property matters, personal injuries and torts, regulatory and legal compliance, and other matters. While most matters relate to individual claims, we are also subject to putative class action claims and similar broader claims. Current putative class actions and similar claims include the following:


•	three complaints relating to allegedly wrongful acts in our processing of overdraft fees on debit card transactions in which the plaintiffs seek monetary awards on the basis of various common law claims,


◦	Barlow, et. al. v. Zions First National Bank and Zions Bancorporation, pending in the United States District Court for the District of Utah,


◦	Sadlier, et. al. v. National Bank of Arizona, pending in the Superior Court for the State of Arizona, County of Maricopa, and


◦	Starr, et. al. v. California Bank & Trust, pending in the Superior Court for the State of California at San Diego;


•	a complaint relating to our banking relationships with customers that allegedly engaged in wrongful telemarketing practices in which the plaintiff seeks a trebled monetary award under the federal RICO Act, Reyes v. Zions First National Bank, et. al., pending in the United States District Court for the Eastern District of Pennsylvania; and

•

a complaint arising from our banking relationships with Frederick Berg and a number of investment funds controlled by him using the “Meridian” brand name, in which the liquidating trustee for the funds seeks an award from us, on the basis of aiding and abetting liability, for monetary damages suffered by victims of a fraud allegedly perpetrated by Berg, In re Consolidated Meridian Funds a/k/a Meridian Investors Trust, Mark Calvert as Liquidating Trustee, et. al. vs. Zions Bancorporation and The Commerce Bank of Washington, N.A., pending in the United States Bankruptcy Court for the Western District of Washington.

Discovery has commenced in each of these matters other than the Meridian Funds litigation, which was filed against us in the third quarter of 2012.

Table of Contents

ZIONS BANCORPORATION AND SUBSIDIARIES

At any given time, proceedings, investigations, examinations and other actions brought or considered by governmental and self-regulatory agencies may relate to our banking, investment advisory, trust, securities, and other products and services; our customers’ involvement in money-laundering, fraud, securities violations and other illicit activities or our policies and practices relating to such customer activities; and our compliance with the broad range of banking, securities and other laws and regulations applicable to us. At any given time, we may be in the process of responding to subpoenas, requests for documents, data and testimony relating to such matters and engaging in discussions to resolve the matters. Significant investigations and similar inquiries to which we are currently subject relate to:


•	possible money laundering activities of a customer of one of our banking subsidiaries and the anti-money laundering practices of that bank (conducted by the United States Attorneys Office for the Southern District of New York); and


•	the practices of our subsidiary, Contango Capital Advisors, Inc., relative to certain investment products acquired by Contango clients from sponsors and issuers unaffiliated with us (conducted by the staff of the Salt Lake City office of the SEC).

At least quarterly, we review outstanding and new legal matters, utilizing then available information. In accordance with applicable accounting guidance, if we determine that a loss from a matter is probable and the amount of the loss can be reasonably estimated, we establish an accrual for the loss. In the absence of such a determination, no accrual is made. Once established, accruals are adjusted to reflect developments relating to the matters.

In our review, we also assess whether we can determine the range of reasonably possible losses for significant matters in which we are unable to determine that the likelihood of a loss is remote. Because of the difficulty of predicting the outcome of legal matters, discussed subsequently, we are able to estimate such a range only for a limited number of matters. We currently estimate the aggregate range of reasonably possible losses for those matters to be from $0 million to not more than $90 million in excess of amounts accrued. This estimated range of reasonably possible losses is based on information currently available as of September 30, 2012. The matters underlying the estimated range will change from time to time, and actual results may vary significantly from this estimate. Those matters for which an estimate is not possible are not included within this estimated range and, therefore, this estimated range does not represent our maximum loss exposure.

Based on our current knowledge, we believe that our current estimated liability for litigation and other legal actions and claims, reflected in our accruals and determined in accordance with applicable accounting guidance, is adequate and that liabilities in excess of the amounts currently accrued, if any, arising from litigation and other legal actions and claims for which an estimate as previously described is possible, will not have a material impact on our financial condition, results of operations, or cash flows. However, in light of the significant uncertainties involved in these matters, and the very large or indeterminate damages sought in some of these matters, an adverse outcome in one or more of these matters could be material to our financial condition, results of operations, or cash flows for any given reporting period.

Any estimate or determination relating to the future resolution of litigation, arbitration, governmental or self-regulatory examinations, investigations or actions or similar matters is inherently uncertain and involves significant judgment. This is particularly true in the early stages of a legal matter, when legal issues and facts have not been well articulated, reviewed, analyzed, and vetted through discovery, preparation for trial or hearings, substantive and productive mediation or settlement discussions, or other actions. It is also particularly true with respect to class action and similar claims involving multiple defendants, matters with complex procedural requirements or substantive issues or novel legal theories, and examinations, investigations and other actions conducted or brought by governmental and self-regulatory agencies, in which the normal adjudicative process is not applicable. Accordingly, we usually are unable to determine whether a favorable or unfavorable outcome is remote, reasonably likely, or probable, or to estimate the amount or range of a probable or reasonably likely loss, until relatively late in the course of a legal matter, sometimes not until a number of years have elapsed. Accordingly, our judgments and estimates relating to claims will change from time to time in light of developments and actual outcomes will differ from our estimates. These differences may be material.

Table of Contents

ZIONS BANCORPORATION AND SUBSIDIARIES


11.	RETIREMENT PLANS

The following discloses the net periodic benefit cost (credit) and its components for the Company’s pension and postretirement plans:



	Pension benefits						Supplemental retirement benefits						Postretirement benefits						Pension benefits						Supplemental retirement benefits						Postretirement benefits
(In thousands)	Three Months Ended September 30,																		Nine Months Ended September 30,
	2012			2011			2012			2011			2012			2011			2012			2011			2012			2011			2012			2011
Service cost (credit)	$	(3	)	$	22		$	—		$	—		$	9		$	8		$	22		$	73		$	—		$	—		$	27		$	24
Interest cost	1,885			1,815			115			140			12			13			5,669			6,068			345			418			35			41
Expected return on plan assets	(2,827		)	(2,710		)													(8,481		)	(9,058		)
Amortization of prior service cost (credit)							31			31			(61		)	(61		)							93			94			(183		)	(183		)
Amortization of net actuarial (gain) loss	2,198			1,152			(28		)	(4		)	(22		)	(31		)	6,889			3,851			(85		)	(12		)	(65		)	(94		)
Net periodic benefit cost (credit)	$	1,253		$	279		$	118		$	167		$	(62	)	$	(71	)	$	4,099		$	934		$	353		$	500		$	(186	)	$	(212	)

As disclosed in the Company’s 2011 Annual Report on Form 10-K, the Company has frozen its participation and benefit accruals for the pension plan and its contributions for individual benefit payments in the postretirement benefit plan.


12.	OPERATING SEGMENT INFORMATION

We manage our operations and prepare management reports and other information with a primary focus on geographical area. As of September 30, 2012, we operate eight community/regional banks in distinct geographical areas. Performance assessment and resource allocation are based upon this geographical structure. Zions Bank operates 105 branches in Utah and 26 branches in Idaho. CB&T operates 102 branches in California. Amegy operates 82 branches in Texas. NBA operates 74 branches in Arizona. NSB operates 53 branches in Nevada. Vectra operates 38 branches in Colorado and one branch in New Mexico. TCBW operates one branch in the state of Washington. TCBO operates one branch in Oregon. Additionally, each subsidiary bank, except for NSB, NBA and TCBO, operates a foreign branch in the Grand Cayman Islands.

The operating segment identified as “Other” includes the Parent, Zions Management Services Company (“ZMSC”), certain nonbank financial service subsidiaries, TCBO, and eliminations of transactions between segments. ZMSC provides internal technology and operational services to affiliated operating businesses of the Company. ZMSC charges most of its costs to the affiliates on an approximate break-even basis.

The accounting policies of the individual operating segments are the same as those of the Company. Transactions between operating segments are primarily conducted at fair value, resulting in profits that are eliminated for reporting consolidated results of operations. Operating segments pay for centrally provided services based upon estimated or actual usage of those services.

Table of Contents

ZIONS BANCORPORATION AND SUBSIDIARIES

The following table presents selected operating segment information for the three months ended September 30, 2012 and 2011:



(In millions)	Zions Bank						CB&T						Amegy						NBA						NSB
	2012			2011			2012			2011			2012			2011			2012			2011			2012			2011
CONDENSED INCOME STATEMENT
Net interest income	$	170.6		$	177.6		$	118.7		$	127.8		$	91.0		$	99.4		$	42.1		$	43.0		$	30.4		$	33.5
Provision for loan losses	17.1			30.5			(2.8		)	(1.5		)	(18.3		)	(13.0		)	1.8			7.6			(1.2		)	(15.6		)
Net interest income after provision for loan losses	153.5			147.1			121.5			129.3			109.3			112.4			40.3			35.4			31.6			49.1
Net impairment losses on investment securities	(0.1		)	(0.3		)	—			(0.5		)	—			—			—			—			—			—
Loss on sale of investment securities to Parent	—			—			—			(7.2		)	—			—			—			—			—			—
Other noninterest income	46.5			55.7			18.6			22.1			38.9			37.8			7.5			8.8			8.8			9.8
Noninterest expense	123.5			142.2			85.2			89.3			86.3			74.3			37.3			36.3			31.3			35.4
Income (loss) before income taxes	76.4			60.3			54.9			54.4			61.9			75.9			10.5			7.9			9.1			23.5
Income tax expense (benefit)	27.4			20.5			21.8			21.4			20.8			25.6			3.4			3.1			3.1			8.1
Net income (loss)	$	49.0		$	39.8		$	33.1		$	33.0		$	41.1		$	50.3		$	7.1		$	4.8		$	6.0		$	15.4
AVERAGE BALANCE SHEET DATA
Total assets	$	17,641		$	16,259		$	11,000		$	10,960		$	12,231		$	11,362		$	4,447		$	4,458		$	4,085		$	4,232
Cash and due from banks	359			361			168			179			259			284			70			65			83			93
Money market investments	2,725			1,071			1,296			1,254			2,446			1,575			482			605			936			961
Total securities	1,331			1,496			362			391			315			420			274			273			774			689
Total loans	12,566			12,686			8,332			8,257			7,981			7,858			3,402			3,277			2,156			2,360
Total deposits	15,140			13,741			9,404			9,336			9,805			8,831			3,766			3,722			3,597			3,595
Shareholder’s equity:
Preferred equity	444			480			184			262			330			488			198			305			180			360
Common equity	1,441			1,351			1,307			1,260			1,689			1,580			379			337			286			252
Noncontrolling interests	—			—			—			—			—			—			—			—			—			—
Total shareholder’s equity	1,885			1,831			1,491			1,522			2,019			2,068			577			642			466			612
	Vectra						TCBW						Other						Consolidated Company
	2012			2011			2012			2011			2012			2011			2012			2011
CONDENSED INCOME STATEMENT
Net interest income	$	27.4		$	26.5		$	7.1		$	7.6		$	(43.1	)	$	(44.8	)	$	444.2		$	470.6
Provision for loan losses	2.2			5.3			(0.7		)	1.3			—			—			(1.9		)	14.6
Net interest income after provision for loan losses	25.2			21.2			7.8			6.3			(43.1		)	(44.8		)	446.1			456.0
Net impairment losses on investment securities	—			(0.5		)	—			—			(2.6		)	(12.0		)	(2.7		)	(13.3		)
Loss on sale of investment securities to Parent	—			—			—			—			—			7.2			—			—
Other noninterest income	7.5			5.7			0.8			0.8			(6.7		)	(6.3		)	121.9			134.4
Noninterest expense	23.4			23.7			4.9			4.3			3.1			3.5			395.0			409.0
Income (loss) before income taxes	9.3			2.7			3.7			2.8			(55.5		)	(59.4		)	170.3			168.1
Income tax expense (benefit)	3.2			0.7			1.3			1.0			(20.3		)	(21.0		)	60.7			59.4
Net income (loss)	$	6.1		$	2.0		$	2.4		$	1.8		$	(35.2	)	$	(38.4	)	$	109.6		$	108.7
AVERAGE BALANCE SHEET DATA
Total assets	$	2,441		$	2,273		$	863		$	891		$	659		$	1,139		$	53,367		$	51,574
Cash and due from banks	54			49			20			18			(13		)	(13		)	1,000			1,036
Money market investments	47			28			158			142			(100		)	(117		)	7,990			5,519
Total securities	207			259			115			134			447			1,166			3,825			4,828
Total loans	2,046			1,864			556			583			70			(101		)	37,109			36,784
Total deposits	2,085			1,906			722			700			(1,041		)	(434		)	43,478			41,397
Shareholder’s equity:
Preferred equity	70			70			2			15			357			355			1,765			2,335
Common equity	214			206			80			74			(637		)	(426		)	4,759			4,634
Noncontrolling interests	—			—			—			—			(3		)	(2		)	(3		)	(2		)
Total shareholder’s equity	284			276			82			89			(283		)	(73		)	6,521			6,967

Table of Contents

ZIONS BANCORPORATION AND SUBSIDIARIES

The following table presents selected operating segment information for the nine months ended September 30, 2012 and 2011:



(In millions)	Zions Bank						CB&T						Amegy						NBA						NSB
	2012			2011			2012			2011			2012			2011			2012			2011			2012			2011
CONDENSED INCOME STATEMENT
Net interest income	$	514.8		$	526.6		$	354.4		$	384.9		$	275.7		$	290.7		$	125.6		$	129.4		$	92.6		$	101.9
Provision for loan losses	78.0			91.1			(9.5		)	3.9			(50.5		)	(9.9		)	10.8			10.1			(9.5		)	(33.0		)
Net interest income after provision for loan losses	436.8			435.5			363.9			381.0			326.2			300.6			114.8			119.3			102.1			134.9
Net impairment losses on investment securities	(0.3		)	(0.3		)	—			(0.5		)	—			—			—			—			—			—
Loss on sale of investment securities to Parent	—			—			(9.2		)	(20.7		)	—			—			—			—			—			—
Other noninterest income	147.4			154.8			55.5			84.3			117.8			111.1			23.0			26.8			25.2			28.5
Noninterest expense	371.0			407.8			250.8			272.7			255.1			238.3			113.2			118.4			100.9			105.7
Income (loss) before income taxes	212.9			182.2			159.4			171.4			188.9			173.4			24.6			27.7			26.4			57.7
Income tax expense (benefit)	75.5			61.7			63.1			67.9			62.9			57.5			8.9			10.9			9.1			20.0
Net income (loss)	$	137.4		$	120.5		$	96.3		$	103.5		$	126.0		$	115.9		$	15.7		$	16.8		$	17.3		$	37.7
AVERAGE BALANCE SHEET DATA
Total assets	$	17,410		$	16,192		$	10,905		$	10,844		$	12,116		$	11,273		$	4,457		$	4,456		$	4,127		$	4,167
Cash and due from banks	367			379			176			187			293			298			70			65			87			85
Money market investments	2,507			807			1,175			1,065			2,357			1,545			569			611			960			924
Total securities	1,380			1,573			350			399			331			451			276			255			770			646
Total loans	12,501			12,771			8,342			8,296			7,922			7,742			3,321			3,285			2,176			2,397
Total deposits	14,887			13,619			9,246			9,257			9,625			8,748			3,732			3,726			3,597			3,544
Shareholder’s equity:
Preferred equity	468			480			231			262			409			488			259			305			227			360
Common equity	1,419			1,310			1,293			1,225			1,665			1,545			363			331			280			238
Noncontrolling interests	—			—			—			—			—			—			—			—			—			—
Total shareholder’s equity	1,887			1,790			1,524			1,487			2,074			2,033			622			636			507			598
	Vectra						TCBW						Other						Consolidated Company
	2012			2011			2012			2011			2012			2011			2012			2011
CONDENSED INCOME STATEMENT
Net interest income	$	81.7		$	78.3		$	21.6		$	22.8		$	(147.9	)	$	(224.0	)	$	1,318.5		$	1,310.6
Provision for loan losses	4.6			7.2			0.7			6.4			—			0.1			24.6			75.9
Net interest income after provision for loan losses	77.1			71.1			20.9			16.4			(147.9		)	(224.1		)	1,293.9			1,234.7
Net impairment losses on investment securities	—			(0.5		)	—			—			(20.0		)	(20.3		)	(20.3		)	(21.6		)
Loss on sale of investment securities to Parent	—			—			—			—			9.2			20.7			—			—
Other noninterest income	18.5			16.5			2.1			2.1			(20.0		)	(19.0		)	369.5			405.1
Noninterest expense	73.0			74.7			13.9			12.7			11.1			3.3			1,189.0			1,233.6
Income (loss) before income taxes	22.6			12.4			9.1			5.8			(189.8		)	(246.0		)	454.1			384.6
Income tax expense (benefit)	7.5			3.8			3.1			1.9			(66.5		)	(73.0		)	163.6			150.7
Net income (loss)	$	15.1		$	8.6		$	6.0		$	3.9		$	(123.3	)	$	(173.0	)	$	290.5		$	233.9
AVERAGE BALANCE SHEET DATA
Total assets	$	2,395		$	2,257		$	877		$	865		$	660		$	1,039		$	52,947		$	51,093
Cash and due from banks	52			51			20			18			(16		)	(33		)	1,049			1,050
Money market investments	49			67			168			116			(98		)	(189		)	7,687			4,946
Total securities	217			257			119			138			444			1,191			3,887			4,910
Total loans	1,991			1,813			556			579			68			(119		)	36,877			36,764
Total deposits	2,047			1,884			730			680			(932		)	(498		)	42,932			40,960
Shareholder’s equity:
Preferred equity	70			70			10			15			309			240			1,983			2,220
Common equity	208			204			78			72			(600		)	(300		)	4,706			4,625
Noncontrolling interests	—			—			—			—			(3		)	(1		)	(3		)	(1		)
Total shareholder’s equity	278			274			88			87			(294		)	(61		)	6,686			6,844

Table of Contents

ZIONS BANCORPORATION AND SUBSIDIARIES


Item 2.	MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS

FORWARD-LOOKING INFORMATION

Statements in this Quarterly Report on Form 10-Q that are based on other than historical data are forward-looking within the meaning of the Private Securities Litigation Reform Act of 1995. Forward-looking statements provide current expectations or forecasts of future events and include, among others:


•	statements with respect to the beliefs, plans, objectives, goals, guidelines, expectations, anticipations, and future financial condition, results of operations and performance of Zions Bancorporation (“the Parent”) and its subsidiaries (collectively “the Company,” “Zions,” “we,” “our,” “us”);


•	statements preceded by, followed by or that include the words “may,” “could,” “should,” “would,” “believe,” “anticipate,” “estimate,” “expect,” “intend,” “plan,” “projects,” or similar expressions.

These forward-looking statements are not guarantees of future performance, nor should they be relied upon as representing management’s views as of any subsequent date. Forward-looking statements involve significant risks and uncertainties and actual results may differ materially from those presented, either expressed or implied, including, but not limited to, those presented in the Management’s Discussion and Analysis. Factors that might cause such differences include, but are not limited to:


•	the Company’s ability to successfully execute its business plans, manage its risks, and achieve its objectives;

•

changes in local, national and international political and economic conditions, including without limitation the political and economic effects of the recent economic crisis, delay of recovery from that crisis, economic conditions and fiscal imbalances in the United States and other countries, potential or actual downgrades in rating of sovereign debt issued by the United States and other countries, and other major developments, including wars, military actions, and terrorist attacks;


•	changes in financial market conditions, either internationally, nationally or locally in areas in which the Company conducts its operations, including without limitation reduced rates of business formation and growth, commercial and residential real estate development and real estate prices;


•	fluctuations in markets for equity, fixed-income, commercial paper and other securities, including availability, market liquidity levels, and pricing;


•	changes in interest rates, the quality and composition of the loan and securities portfolios, demand for loan products, deposit flows and competition;


•	acquisitions and integration of acquired businesses;


•	increases in the levels of losses, customer bankruptcies, bank failures, claims, and assessments;


•	changes in fiscal, monetary, regulatory, trade and tax policies and laws, and regulatory assessments and fees, including policies of the U.S. Department of Treasury, the OCC, the Board of Governors of the Federal Reserve Board System, and the FDIC;


•	the Company’s participation in and exit from governmental programs implemented under the EESA and the ARRA, including the TARP and CPP, and the impact of such programs and related regulations on the Company;


•	the impact of executive compensation rules under the Dodd-Frank Act, the EESA and the ARRA, which may impact the ability of the Company and other American financial institutions to retain and recruit executives and other personnel necessary for their businesses and competitiveness;

•

the impact of the Dodd-Frank Act and of new international standards known as Basel III, and rules and regulations thereunder, many of which have not yet been promulgated, on our required regulatory capital and liquidity levels, governmental assessments on us, the scope of business activities in which we may engage, the manner in which we engage in such activities, the fees we may charge for certain products and services, and other matters affected by the Dodd-Frank Act and these international standards;


•	continuing consolidation in the financial services industry;


•	new legal claims against the Company, including litigation, arbitration and proceedings brought by governmental or self-regulatory agencies, or changes in existing legal matters;

Table of Contents

ZIONS BANCORPORATION AND SUBSIDIARIES


•	success in gaining regulatory approvals, when required;


•	changes in consumer spending and savings habits;


•	increased competitive challenges and expanding product and pricing pressures among financial institutions;


•	inflation and deflation;


•	technological changes and the Company’s implementation of new technologies;


•	the Company’s ability to develop and maintain secure and reliable information technology systems;


•	legislation or regulatory changes which adversely affect the Company’s operations or business;


•	the Company’s ability to comply with applicable laws and regulations;


•	changes in accounting policies or procedures as may be required by the Financial Accounting Standards Board or regulatory agencies; and


•	increased costs of deposit insurance and changes with respect to FDIC insurance coverage levels.

Except to the extent required by law, the Company specifically disclaims any obligation to update any factors or to publicly announce the result of revisions to any of the forward-looking statements included herein to reflect future events or developments.

GLOSSARY OF ACRONYMS



ABS	Asset-Backed Security	IA	Indemnification Asset
ACL	Allowance for Credit Losses	IFRS	International Financial Reporting Standards
AFS	Available-for-Sale	ISDA	International Swap Dealer Association
ALCO	Asset/Liability Committee	LIBOR	London Interbank Offered Rate
ALLL	Allowance for Loan and Lease Losses	Lockhart	Lockhart Funding LLC
Amegy	Amegy Corporation	MVE	Market Value of Equity
AOCI	Accumulated Other Comprehensive Income	NBA	National Bank of Arizona
ARRA	American Recovery and Reinvestment Act	NII	Net Interest Income
ASC	Accounting Standards Codification	NOW	Negotiable Order of Withdrawal
ASU	Accounting Standards Update	NRSRO	Nationally Recognized Statistical Rating Organization
ATM	Automated Teller Machine	NSB	Nevada State Bank
bps	Basis Points	OCC	Office of the Comptroller of the Currency
CB&T	California Bank & Trust	OCI	Other Comprehensive Income
CDO	Collateralized Debt Obligation	OREO	Other Real Estate Owned
CDR	Constant Default Rate	OTC	Over-the-Counter
CLTV	Combined Loan-to-Value Ratio	OTTI	Other-Than-Temporary Impairment
CPP	Capital Purchase Program	Parent	Zions Bancorporation
CPR	Constant Prepayment Rate	PCI	Purchased Credit-Impaired
CRE	Commercial Real Estate	PD	Probability of Default
DB	Deutsche Bank AG	PIK	Payment in Kind
DBRS	Dominion Bond Rating Service	REIT	Real Estate Investment Trust
Dodd-Frank Act	Dodd-Frank Wall Street Reform and Consumer Protection Act	RULC	Reserve for Unfunded Lending Commitments
DTA	Deferred Tax Asset	SBA	Small Business Administration
DTL	Deferred Tax Liability	SBIC	Small Business Investment Company
EESA	Emergency Economic Stabilization Act	SEC	Securities and Exchange Commission
FAMC	Federal Agricultural Mortgage Corporation, or “Farmer Mac”	TARP	Troubled Asset Relief Program
FASB	Financial Accounting Standards Board	TCBO	The Commerce Bank of Oregon
FDIC	Federal Deposit Insurance Corporation	TCBW	The Commerce Bank of Washington
FHLB	Federal Home Loan Bank	TDR	Troubled Debt Restructuring
FICO	Fair Isaac Corporation	TRS	Total Return Swap
FRB	Federal Reserve Board	Vectra	Vectra Bank Colorado
GAAP	Generally Accepted Accounting Principles	Zions Bank	Zions First National Bank
HECL	Home Equity Credit Line	ZMSC	Zions Management Services Company
HTM	Held-to-Maturity

Table of Contents

ZIONS BANCORPORATION AND SUBSIDIARIES

CRITICAL ACCOUNTING POLICIES AND SIGNIFICANT ESTIMATES

The Company has made no significant changes in its critical accounting policies and significant estimates from those disclosed in its 2011 Annual Report on Form 10-K.

RESULTS OF OPERATIONS

The Company reported net earnings applicable to common shareholders of $62.3 million, or $0.34 per diluted share for the third quarter of 2012, compared to net earnings applicable to common shareholders of $65.2 million, or $0.35 per diluted share for the same prior year period. The following changes had a favorable impact on net earnings:


•	$20.4 million decrease in other real estate expense;


•	$16.4 million decrease in the provision for loan losses;


•	$13.0 million reduction in total interest expense;


•	$10.6 million decline in net impairment losses on investment securities; and


•	$4.5 million increase in loan sales and servicing income.

The impact of these items was partially offset by the following:


•	$39.4 million decrease in total interest income;


•	$10.0 million decline in fixed income securities gains, net;


•	$6.7 million reduction in other service charges, commissions, and fees; and


•	$4.5 million increase in the provision for unfunded lending commitments.

Net earnings applicable to common shareholders for the first nine months of 2012 were $143.0 million, or $0.77 per diluted share, compared to net earnings applicable to common shareholders of $109.0 million, or $0.59 per diluted share in the corresponding prior year period. The improved result reflects the following:


•	$116.3 million decrease in total interest expense;


•	$51.3 million decrease in the provision for loan losses;


•	$48.2 million decrease in other real estate expense;


•	$19.3 million reduction in FDIC premiums; and


•	$10.9 million decline in other noninterest expense.

The impact of these items was partially offset by the following:


•	$108.5 million decrease in total interest income;


•	$22.4 million increase in preferred stock dividends;


•	$19.5 million decrease in other service charges, commissions and fees;


•	$17.1 million increase in the provision for unfunded lending commitments; and


•	$16.7 million increase in fair value and nonhedge derivative loss.

During 2009, the Company executed a subordinated debt modification and exchange transaction. The original discount on the convertible subordinated debt was $679 million and the remaining discount at September 30, 2012 was $161 million. It included the following components:


•	the fair value discount on the debt; and


•	the value of the beneficial conversion feature which added the right of the debt holder to convert the debt into preferred stock.

The discount associated with the convertible subordinated debt is amortized to interest expense using the interest method over the remaining term of the subordinated debt (referred to herein as “discount amortization”). When holders of the convertible subordinated notes convert to preferred stock, the rate of amortization is accelerated by immediately

Table of Contents

ZIONS BANCORPORATION AND SUBSIDIARIES

expensing any unamortized discount associated with the converted debt (referred to herein as “accelerated discount amortization”).

Excluding the impact of these noncash expenses, income before income taxes and subordinated debt conversions for the third quarter of 2012 was $183 million compared to $186 million for the third quarter of 2011.



	Three Months Ended
(In millions)	September 30, 2012			June 30, 2012		March 31, 2012		December 31, 2011			September 30, 2011
Income before income taxes (GAAP)		$	170	$	143	$	141		$	136		$	168
Convertible subordinated debt discount amortization		11		10		12			11			11
Accelerated convertible subordinated debt discount amortization		2		16		12			6			7
Income before income taxes and subordinated debt conversions (non-GAAP)		$	183	$	169	$	165		$	153		$	186

The impact of the conversion of subordinated debt into preferred stock is further discussed in the “Capital Management” section.

Net Interest Income, Margin and Interest Rate Spreads

Net interest income is the difference between interest earned on interest-earning assets and interest incurred on interest-bearing liabilities. Taxable-equivalent net interest income is the largest portion of the Company’s revenue. For the third quarter of 2012, taxable-equivalent net interest income was $448.6 million, compared to $436.6 million for the second quarter of 2012, and $475.6 million in the third quarter of 2011. The tax rate used for calculating all taxable-equivalent adjustments was 35% for all periods presented.

The net interest margin was 3.63% and 3.62% for the third and second quarters of 2012, respectively, and 3.99% for the third quarter of 2011. The increased net interest margin for the third quarter of 2012 compared to the second quarter of 2012 resulted primarily from:


•	decreases in the amount of amortization and accelerated amortization on convertible subordinated debt, see “Capital Management” for further discussion;


•	lower cost of funding due to continued favorable change in the mix of funding sources and rates; and


•	lower balances of investment securities, and lower rates earned on investment securities and loans, partially offsetting the positive impact of the above items.

The decreased net interest margin for the third quarter of 2012 compared to the same prior year period was impacted by:


•	lower yields on loans;


•	lower rates paid on interest-bearing deposits; and


•	increased balances of and slightly higher interest rates earned on money market investments.

Even though the Company’s average loan portfolio, excluding FDIC-supported loans, was $531 million higher in the third quarter of 2012 than in the same prior year period, the average interest rate earned on those assets declined by 45 basis points to 4.94% in the third quarter of 2012 from 5.39% in the corresponding prior year period. The two factors that primarily caused this decrease are (1) adjustable rate loans originated in the past resetting to lower rates due to the current repricing index being lower than the rate when the loans were originated, and (2) maturing loans, many of which had rate floors, being replaced with new loans at lower original coupons and/or lower floors compared to the rates at which loans were originated when spreads were higher.

Average noninterest-bearing deposits increased by $2.0 billion to comprise 35.9% of average total liabilities for the third quarter of 2012, compared to 33.2% in the same prior year period. Average interest-bearing deposits were $59.5 million higher for the third quarter of 2012 compared to the third quarter of 2011. The average interest rate paid was 18 basis points lower than in the third quarter of 2011, resulting in decreased interest expense.

Table of Contents

ZIONS BANCORPORATION AND SUBSIDIARIES

In the third quarter of 2012, average money market investments increased by $2,471 million and the average interest rate earned increased by two basis points compared to the corresponding prior year period.

The net interest margin was 3.66% and 3.79% for the first nine months of 2012 and 2011, respectively. The fluctuation was mostly affected by a 45 bps decline in the average rate earned on the loan portfolio, partially offset by a $73.6 million, or 29.7%, reduction in interest expense on long-term debt.

See “Interest Rate and Market Risk Management” for further discussion of how we manage the portfolios of interest-earning assets, interest-bearing liabilities, and associated risk.

The Company believes that in addition to the net interest margin, its “core net interest margin” is also an important measure of operating performance. We calculate the core net interest margin by excluding the impact of discount amortization on convertible subordinated debt, accelerated discount amortization on convertible subordinated debt, and additional accretion of interest income on acquired loans from the net interest margin. The core net interest margin was 3.60% for the third quarter of 2012 and 3.97% for the third quarter of 2011 due to the previously discussed changes in the loan portfolio and funding sources. See “GAAP to non-GAAP Reconciliations” for a reconciliation between the GAAP net interest margin and the non-GAAP core net interest margin.

The spread on average interest-bearing funds was 3.25% and 3.56% for the third quarters of 2012 and 2011, respectively. The spread on average interest-bearing funds for the third quarter of 2012 was affected by the same factors that had an impact on the net interest margin.

The spread on average interest-bearing funds increased by four bps to 3.24% during the first nine months of 2012 compared to the first nine months of 2011. Except for the items discussed below, explanations previously provided for the quarterly changes also apply to the year-to-date fluctuations.

We believe the following factors may positively impact net interest income in the next several quarters: decreased level of nonperforming assets, decreased long-term debt service cost and modest loan growth. However, net loan growth has proven to be difficult to forecast. While pipelines and new commitment originations remain strong, actual drawdowns have lagged and have been largely offset by paydowns and prepayments of existing loans. We also believe the following factors may adversely affect net interest income: competitive loan pricing conditions and declines in the reference index rates for adjustable rate loans. On balance, we expect the trend in net interest income to be stable or slightly lower for several quarters.

The unamortized discount on the convertible subordinated debt was $161 million as of September 30, 2012, or 34.9% of the $462 million of remaining outstanding convertible subordinated notes, and will be amortized to interest expense over the remaining life of the debt using the interest method.

The Company expects to remain somewhat “asset-sensitive” with regard to interest rate risk. The current period of historically low interest rates has lasted for several years. During this time, the Company has maintained an interest rate risk position that is more asset sensitive than it was prior to the economic crisis, and it expects to maintain this more asset sensitive position for a prolonged period. With interest rates at historically low levels, there is a reduced need to protect against falling interest rates. Our estimates of the Company’s actual rate risk position are highly dependent upon a number of assumptions regarding the repricing behavior of various deposit and loan types in response to changes in both short-term and long-term interest rates, balance sheet composition, and other modeling assumptions, as well as the actions of competitors and customers in response to those changes. Further detail on interest rate risk is discussed in ”Interest Rate Risk” on page 80 of the Company’s 2011 Annual Report on Form 10-K, and in this filing in “Interest Rate Risk.”

Table of Contents

ZIONS BANCORPORATION AND SUBSIDIARIES

CONSOLIDATED AVERAGE BALANCE SHEETS, YIELDS AND RATES

(Unaudited)



	Three Months Ended September 30, 2012							Three Months Ended September 30, 2011
(In thousands)	Average balance			Amount of interest ¹		Average rate		Average balance			Amount of interest ¹		Average rate
ASSETS
Money market investments	$	7,990,243		$	5,349	0.27	%	$	5,519,190		$	3,482	0.25	%
Securities:
Held-to-maturity	758,761			10,138		5.32	%	821,510			11,158		5.39	%
Available-for-sale	3,052,559			22,507		2.93	%	3,951,546			21,977		2.21	%
Trading account	13,691			110		3.20	%	55,214			462		3.32	%
Total securities	3,825,011			32,755		3.41	%	4,828,270			33,597		2.76	%
Loans held for sale	183,224			1,621		3.52	%	118,054			1,215		4.08	%
Loans ²:
Loans and leases	36,494,927			453,098		4.94	%	35,964,005			488,472		5.39	%
FDIC-supported loans	613,710			26,648		17.27	%	819,696			32,615		15.79	%
Total loans	37,108,637			479,746		5.14	%	36,783,701			521,087		5.62	%
Total interest-earning assets	49,107,115			519,471		4.21	%	47,249,215			559,381		4.70	%
Cash and due from banks	1,000,159							1,036,218
Allowance for loan losses	(962,950		)					(1,210,111		)
Goodwill	1,015,129							1,015,161
Core deposit and other intangibles	57,345							75,153
Other assets	3,150,014							3,407,914
Total assets	$	53,366,812						$	51,573,550
LIABILITIES
Interest-bearing deposits:
Savings and NOW	$	7,567,020		3,056		0.16	%	$	6,637,565		4,563		0.27	%
Money market	14,458,871			9,447		0.26	%	14,838,406			16,174		0.43	%
Time	3,162,165			5,484		0.69	%	3,630,024			8,287		0.91	%
Foreign	1,472,437			1,062		0.29	%	1,494,995			2,069		0.55	%
Total interest-bearing deposits	26,660,493			19,049		0.28	%	26,600,990			31,093		0.46	%
Borrowed funds:
Securities sold, not yet purchased	2,062			—		—	%	31,077			333		4.25	%
Federal funds purchased and security repurchase agreements	453,209			157		0.14	%	616,150			183		0.12	%
Other short-term borrowings	8,273			36		1.73	%	140,252			985		2.79	%
Long-term debt	2,297,409			51,597		8.93	%	1,893,251			51,207		10.73	%
Total borrowed funds	2,760,953			51,790		7.46	%	2,680,730			52,708		7.80	%
Total interest-bearing liabilities	29,421,446			70,839		0.96	%	29,281,720			83,801		1.14	%
Noninterest-bearing deposits	16,817,085							14,795,706
Other liabilities	606,973							529,343
Total liabilities	46,845,504							44,606,769
Shareholders’ equity:
Preferred equity	1,765,162							2,334,784
Common equity	4,758,858							4,633,555
Controlling interest shareholders’ equity	6,524,020							6,968,339
Noncontrolling interests	(2,712		)					(1,558		)
Total shareholders’ equity	6,521,308							6,966,781
Total liabilities and shareholders’ equity	$	53,366,812						$	51,573,550
Spread on average interest-bearing funds						3.25	%						3.56	%
Taxable-equivalent net interest income and net yield on interest-earning assets				$	448,632	3.63	%				$	475,580	3.99	%

¹ Taxable-equivalent rates used where applicable.

² Net of unearned income and fees, net of related costs. Loans include nonaccrual and restructured loans.

Table of Contents

ZIONS BANCORPORATION AND SUBSIDIARIES

CONSOLIDATED AVERAGE BALANCE SHEETS, YIELDS AND RATES

(Unaudited)



	Nine Months Ended September 30, 2012							Nine Months Ended September 30, 2011
(In thousands)	Average balance			Amount of interest ¹		Average rate		Average balance			Amount of interest ¹		Average rate
ASSETS
Money market investments	$	7,687,336		$	15,076	0.26	%	$	4,945,625		$	9,524	0.26	%
Securities:
Held-to-maturity	785,351			32,476		5.52	%	825,384			33,494		5.43	%
Available-for-sale	3,076,963			71,814		3.12	%	4,029,559			67,805		2.25	%
Trading account	24,546			596		3.24	%	55,312			1,452		3.51	%
Total securities	3,886,860			104,886		3.60	%	4,910,255			102,751		2.80	%
Loans held for sale	171,853			4,684		3.64	%	140,571			4,341		4.13	%
Loans ²:
Loans and leases	36,214,795			1,371,616		5.06	%	35,880,936			1,464,170		5.46	%
FDIC-supported loans	662,549			74,623		15.04	%	883,203			100,082		15.15	%
Total loans	36,877,344			1,446,239		5.24	%	36,764,139			1,564,252		5.69	%
Total interest-earning assets	48,623,393			1,570,885		4.32	%	46,760,590			1,680,868		4.81	%
Cash and due from banks	1,049,426							1,050,373
Allowance for loan losses	(1,004,693		)					(1,317,521		)
Goodwill	1,015,129							1,015,161
Core deposit and other intangibles	61,549							80,121
Other assets	3,202,373							3,504,741
Total assets	$	52,947,177						$	51,093,465
LIABILITIES
Interest-bearing deposits:
Savings and NOW	$	7,401,337		9,870		0.18	%	$	6,530,029		14,120		0.29	%
Money market	14,560,821			31,463		0.29	%	14,894,182			53,111		0.48	%
Time	3,265,070			18,177		0.74	%	3,845,579			28,300		0.98	%
Foreign	1,457,236			3,775		0.35	%	1,475,075			6,303		0.57	%
Total interest-bearing deposits	26,684,464			63,285		0.32	%	26,744,865			101,834		0.51	%
Borrowed funds:
Securities sold, not yet purchased	10,286			220		2.86	%	33,703			1,070		4.24	%
Federal funds purchased and security repurchase agreements	485,182			472		0.13	%	659,726			614		0.12	%
Other short-term borrowings	23,264			536		3.08	%	160,937			3,780		3.14	%
Long-term debt	2,206,597			173,969		10.53	%	1,910,182			247,533		17.33	%
Total borrowed funds	2,725,329			175,197		8.59	%	2,764,548			252,997		12.24	%
Total interest-bearing liabilities	29,409,793			238,482		1.08	%	29,509,413			354,831		1.61	%
Noninterest-bearing deposits	16,247,937							14,214,733
Other liabilities	602,997							525,437
Total liabilities	46,260,727							44,249,583
Shareholders’ equity:
Preferred equity	1,983,054							2,220,418
Common equity	4,705,827							4,624,810
Controlling interest shareholders’ equity	6,688,881							6,845,228
Noncontrolling interests	(2,431		)					(1,346		)
Total shareholders’ equity	6,686,450							6,843,882
Total liabilities and shareholders’ equity	$	52,947,177						$	51,093,465
Spread on average interest-bearing funds						3.24	%						3.20	%
Taxable-equivalent net interest income and net yield on interest-earning assets				$	1,332,403	3.66	%				$	1,326,037	3.79	%

¹ Taxable-equivalent rates used where applicable.

²Net of unearned income and fees, net of related costs. Loans include nonaccrual and restructured loans.

Table of Contents

ZIONS BANCORPORATION AND SUBSIDIARIES

Provisions for Credit Losses

The provision for loan losses is the amount of expense that, in our judgment, is required to maintain the allowance for loan losses at an adequate level based upon the inherent risks in the loan portfolio. The provision for unfunded lending commitments is used to maintain the reserve for unfunded lending commitments at an adequate level based upon the inherent risks associated with such commitments. In determining adequate levels of the allowance and reserve, we perform periodic evaluations of the Company’s various loan portfolios, the levels of actual charge-offs, credit trends, and external factors. See Note 5 of the Notes to Consolidated Financial Statements and “Credit Risk Management” for more information on how we determine the appropriate level for the allowance for loan and lease losses and the reserve for unfunded lending commitments.

The provision for loan losses for the third quarter of 2012 was $(1.9) million compared to $14.6 million for the same prior year period. For the first nine months of 2012 and 2011, the provision for loan losses was $24.6 million and $75.9 million, respectively. The Company continues to exercise caution with regard to the appropriate level of the allowance for loan losses, given the slow economic recovery. However, during the past 12 months, the Company has experienced a significant improvement in credit quality metrics, including lower levels of criticized and classified loans and lower realized loss rates in most loan segments. At September 30, 2012, classified loans were $1.8 billion, compared to $2.4 billion at September 30, 2011. Additionally, construction and land development loans declined to 5.3% of the loan portfolio at September 30, 2012 compared to 6.7% a year earlier.

Net loan and lease charge-offs declined to $38.6 million in the third quarter of 2012 from $101.9 million in the same prior year period. See “Nonperforming Assets” and “Allowance and Reserve for Credit Losses” for further details.

During the third quarter of 2012, the Company recorded a $2.3 million provision for unfunded lending commitments compared to $(2.2) million for the same prior year period. The increased provision is primarily caused by a higher level of unfunded loan commitments. For the first nine months of 2012 and 2011, the provision (credit) for unfunded lending commitments was $3.4 million and $(13.6) million, respectively. From period to period, the expense related to the reserve for unfunded lending commitments may be subject to sizeable fluctuations due to changes in the timing and volume of loan commitments, originations, and funding, as well as fluctuations in credit quality.

Although classified and nonperforming loan volumes continue to be elevated when compared to long-term historical levels, most measures of credit quality continued to show improvement in the third quarter and first nine months of 2012. Barring any significant economic downturn, we expect the Company’s credit costs to remain low for the next several quarters. We also anticipate continued low levels of criticized and classified loans of most types, and continued low levels of net charge-offs for the next several quarters, compared to the elevated levels experienced from 2008 through 2011.

Noninterest Income

Noninterest income represents revenues the Company earns for products and services that have no interest rate or yield associated with them. For the third quarter of 2012, noninterest income was $119.2 million compared to $121.0 million for the same prior year period.

Other service charges, commissions, and fees, which are comprised of ATM fees, insurance commissions, bankcard merchant fees, debit card interchange fees, cash management fees, lending commitment fees, syndication and servicing fees, and other miscellaneous fees decreased to $38.6 million in the third quarter of 2012 from $45.3 million in the third quarter of 2011. Most of the decline can be attributed to decreased debit card interchange and ATM fees, partially offset by growth in loan fees.

Loan sales and servicing income increased by $4.5 million for the third quarter of 2012, or 73.5%, from the same prior year period. The increase is primarily due to larger gains earned from loan sales.

The Company recorded a $3.0 million gain from fixed income securities for the third quarter of 2012 while it had recorded a $13.0 million gain in the corresponding prior year period. These gains were the result of partial prepayments,

Table of Contents

ZIONS BANCORPORATION AND SUBSIDIARIES

at par, received for CDOs which the Company had previously written down to market value.

The Company recognized net credit-related impairment losses on CDO investment securities of $2.7 million and $13.3 million in the third quarters of 2012 and 2011, respectively. See “Investment Securities Portfolio” for additional information.

Noninterest income was $349.2 million and $383.5 million in the first nine months of 2012 and 2011, respectively. Except for the items discussed below, explanations provided previously for the quarterly changes also apply to the year-to-date fluctuations.

Dividends and other investment income consists of revenue from the Company’s bank-owned life insurance program and revenue from other investments, such as FHLB stock, Federal Reserve Bank stock, and earnings from unconsolidated affiliates including certain alternative venture investments. This income increased by $8.1 million in 2012 from the same prior year period, primarily caused by higher income from investments in private equity funds, and income from bank-owned life insurance.

The Company recorded $17.0 million of fair value and nonhedge derivative loss in the first nine months of 2012, compared to $0.3 million in the first nine months of 2011. The increased loss is primarily attributable to expenses related to the TRS agreement and reduced income from Eurodollar futures contracts in 2012.

The Company recognized $11.9 million of equity securities gains during the first nine months of 2012 compared to $4.6 million in the same prior year period. The gains in 2012 are attributable to increases in the values of venture fund investments.

Other noninterest income was $9.8 million and $27.7 million for the first nine months of 2012 and 2011, respectively. The first quarter of 2011 included an $18.9 million gain related to certain loans which had been purchased from a failed bank in an FDIC-assisted transaction in 2009. The Company had submitted a bid for these loans, all of which were going to be covered by the FDIC loss sharing agreement. However, certain loans were charged off by the failed bank after the bid date but prior to the ownership transfer, and therefore the amount of the applicable loss sharing coverage had to be negotiated at a later date.

Noninterest Expense

Noninterest expense decreased by 3.4% to $395.0 million in the third quarter of 2012 from the third quarter of 2011. During the past 12 months, the Company made significant progress in resolving problem loans and improving the credit quality of its loan portfolio, which resulted in significantly lower other real estate expense and credit-related expense.

Salaries and employee benefits were $220.2 million and $216.9 million for the third quarters of 2012 and 2011, respectively. Most of the increase is due to higher share based compensation and commissions expense.

Other real estate expense decreased to $0.2 million in the third quarter of 2012 from $20.6 million in the same prior year period. The decrease is primarily due to a 41.8% reduction in OREO balances during the last 12 months, which resulted in reduced holding expenses, as well as increased gains on sales of properties and lower write-downs of carrying values during work-out.

Noninterest expense was $44.6 million lower in the first nine months of 2012 compared to the same prior year period. Explanations provided previously for the quarterly changes also apply to the year-to-date changes. Additional explanations of variances follow.

Salaries and employee benefits increased by 1.8% in the first nine months of 2012 compared to the same prior year period. This was mainly caused by an increase in share-based compensation, commissions, retirement expense, and payroll taxes.

Table of Contents

ZIONS BANCORPORATION AND SUBSIDIARIES

Credit-related expense decreased by $8.2 million in the first nine months of 2012 compared to the same prior year period. The decrease resulted primarily from lower property taxes, insurance, and legal costs incurred during workout.

FDIC premiums decreased by 37.1% in the first nine months of 2012 compared to the same prior year period. The decrease is mainly caused by the change in the premium assessment formulas prescribed by the FDIC and by the improved credit quality of the Company’s loan portfolio.

Other noninterest expense in the first nine months of 2012 and 2011 was $198.4 million and $209.3 million, respectively. The decline is primarily the result of lower write-downs of the FDIC indemnification asset attributable to loans purchased from the FDIC in 2009. FDIC-supported loans continued to perform better than expected and the FDIC indemnification asset continues to decline in value.

At September 30, 2012, the Company had 10,347 full-time equivalent employees, compared to 10,606 at December 31, 2011, and 10,548 at September 30, 2011.

Income Taxes

The Company’s income tax expense for the third quarter of 2012 was $60.7 million compared to $59.3 million for the same period in 2011. The effective income tax rates, including the effects of noncontrolling interests, for the third quarter of 2012 and 2011 were 35.6% and 35.2%, respectively. The Company’s income tax expense for the first nine months of 2012 was $163.6 million compared to $150.7 million for the same period in 2011. The effective income tax rates, including the effects of noncontrolling interests, for the first nine months of 2012 and 2011 were 36.0% and 39.1%, respectively. The effective tax rate for the first nine months of 2012 was lower than the tax rate for the same period in 2011 as a result of a decrease in the nondeductible amount of a portion of the accelerated discount amortization from the conversion of subordinated debt to preferred stock during 2012. As discussed in previous filings, the Company has received federal income tax credits under the U.S. Government’s Community Development Financial Institutions Fund that are recognized over a seven-year period from the year of investment. The effect of these tax credits was to reduce income tax expense by $0.9 million for 2012 and by $1.8 million for 2011.

The Company had a net deferred tax asset (“DTA”) of $447 million at September 30, 2012, compared to $509 million at December 31, 2011. The decrease in the DTA resulted primarily from loan charge-offs in excess of loan loss provisions, security and derivative fair value adjustments, and the utilization of net operating loss and tax credit carryforward items. The decrease in the deferred tax liability related to premises and equipment and the nondeductibility of a portion of the accelerated discount amortization from the conversion of subordinated debt to preferred stock did offset some of the overall decrease in DTA. The Company did not record an additional valuation allowance as of September 30, 2012. In assessing the need for a valuation allowance, both the positive and negative evidence about the realization of DTAs were evaluated. The ultimate realization of DTAs is based on the Company’s ability to carry back net operating losses to prior tax periods, tax planning strategies that are prudent and feasible and current forecasts of future taxable income, including the reversal of deferred tax liabilities (“DTLs”), which can absorb losses generated in or carried forward to a particular tax year. After evaluating all of the factors and considering the weight of the positive evidence compared to the negative evidence, management has concluded it is more likely than not that the Company will realize the existing DTAs and that an additional valuation allowance is not needed. In addition, the Company has pursued strategies which may have the effect of mitigating the future possibility of a DTA valuation allowance.

BALANCE SHEET ANALYSIS

Interest-Earning Assets

Interest-earning assets are those assets that have interest rates or yields associated with them. One of our goals is to maintain a high level of interest-earning assets relative to total assets, while keeping nonearning assets at a minimum. Interest-earning assets consist of money market investments, securities, loans, and leases. Another one of our goals is to maintain a higher-yielding mix of interest-earning assets, such as loans, relative to lower-yielding assets, such as money market investments and securities, while maintaining adequate levels of highly liquid assets. The current period of slow economic growth accompanied by the modest loan demand experienced in recent quarters has made it difficult to consistently achieve these goals.

Table of Contents

ZIONS BANCORPORATION AND SUBSIDIARIES

Average interest-earning assets were $48.6 billion for the first nine months of 2012 compared to $46.8 billion for the same period in 2011. Average interest-earning assets as a percentage of total average assets for the first nine months of 2012 was 91.8% compared to 91.5% for the comparable period of 2011.

Average loans, including FDIC-supported loans, were $36.9 billion and $36.8 billion for the first nine months of 2012 and 2011, respectively. Average loans as a percentage of total average assets for the first nine months of 2012 was 69.6% compared to 72.0% in the corresponding prior year period.

Average money market investments, consisting of interest-bearing deposits, federal funds sold and security resell agreements, grew by 55.4% to $7.7 billion for the first nine months of 2012 compared to $4.9 billion for the same period of 2011. Average securities decreased by 20.8% for the first nine months of 2012 from the first nine months of 2011. Average total deposits increased by 4.8% while average total loans grew by 0.3% for the first nine months of 2012 when compared to the same prior year period. Increased customer deposits combined with modest loan growth resulted in higher balances of excess cash available for money market investments.

Investment Securities Portfolio

We invest in securities to generate revenues for the Company; portions of the portfolio are also available as a source of liquidity. The following schedules present a profile of the Company’s investment securities portfolio. The amortized cost amounts represent the Company’s original cost for the investments, adjusted for accumulated amortization or accretion of any yield adjustments related to the security, and credit impairment losses. The estimated fair value measurement levels and methodology are discussed in detail in Note 9 of the Notes to Consolidated Financial Statements.

We have included selected credit rating information for certain of the investment securities schedules because this information is one indication of the degree of credit risk to which we are exposed, and significant declines in ratings for our investment portfolio could indicate an increased level of risk for the Company. The Dodd-Frank Act required that after July 21, 2011, federal agencies could no longer mandate the use of rating agency ratings. Final regulations and effective dates for this provision were issued in June 2012.

Table of Contents

ZIONS BANCORPORATION AND SUBSIDIARIES



	September 30, 2012						December 31, 2011						September 30, 2011
(In millions)	Amortized cost		Carrying value		Estimated fair value		Amortized cost		Carrying value		Estimated fair value		Amortized cost		Carrying value		Estimated fair value
Held-to-maturity:
Municipal securities	$	511	$	512	$	524	$	565	$	565	$	572	$	548	$	548	$	558
Asset-backed securities:
Trust preferred securities – banks and insurance	262		209		119		263		222		144		263		222		144
Other	23		20		13		24		21		14		25		22		14
	796		741		656		852		808		730		836		792		716
Available-for-sale:
U.S. Treasury securities	4		5		5		4		5		5		706		706		706
U.S. Government agencies and corporations:
Agency securities	113		117		117		153		158		158		154		160		160
Agency guaranteed mortgage-backed securities	444		466		466		535		553		553		565		585		585
Small Business Administration loan-backed securities	1,152		1,175		1,175		1,153		1,161		1,161		1,057		1,055		1,055
Municipal securities	113		114		114		121		122		122		123		125		125
Asset-backed securities:
Trust preferred securities – banks and insurance	1,740		965		965		1,794		930		930		1,814		928		928
Trust preferred securities – real estate investment trusts	40		15		15		40		19		19		40		19		19
Auction rate securities	7		7		7		71		70		70		72		71		71
Other	52		45		45		65		50		50		65		52		52
	3,665		2,909		2,909		3,936		3,068		3,068		4,596		3,701		3,701
Mutual funds and other	217		218		218		163		163		163		269		269		269
	3,882		3,127		3,127		4,099		3,231		3,231		4,865		3,970		3,970
Total	$	4,678	$	3,868	$	3,783	$	4,951	$	4,039	$	3,961	$	5,701	$	4,762	$	4,686

The amortized cost of investment securities on September 30, 2012 decreased by 5.5% and 17.9% from the balances on December 31, 2011, and September 30, 2011, respectively. The decrease from September 30, 2011 to September 30, 2012 was mostly due to sales of U.S. Treasury securities and to sales and redemptions of bank and insurance company trust preferred and agency securities.

As of September 30, 2012, 6.9% of the $3.1 billion fair value of available-for-sale securities portfolio was valued at Level 1, 59.7% was valued at Level 2, and 33.4% was valued at Level 3 under the GAAP fair value accounting valuation hierarchy. At December 31, 2011, 5.0% of the $3.2 billion fair value of available-for-sale securities portfolio was valued at Level 1, 61.6% was valued at Level 2, and 33.4% was valued at Level 3. See Note 9 of the Notes to Consolidated Financial Statements for further discussion of fair value accounting.

The amortized cost of available-for-sale investment securities valued at Level 3 was $1,853 million at September 30, 2012 and the fair value of these securities was $1,044 million. The securities valued at Level 3 were comprised of ABS CDOs, auction rate, and municipal securities. For these Level 3 securities, net pretax unrealized loss recognized in OCI at September 30, 2012 was $809 million. As of September 30, 2012, we believe that we will receive on settlement or maturity at least the amortized cost amounts of the Level 3 available-for-sale securities. This expectation applies to both those securities for which OTTI has been recognized and those for which no OTTI has been recognized.

The following schedule presents the Company’s CDOs according to performing tranches without credit impairment and nonperforming tranches. These CDOs are a subset of our asset-backed securities and consist of both HTM and AFS securities.

Table of Contents

ZIONS BANCORPORATION AND SUBSIDIARIES



	September 30, 2012
								Net unrealized losses recognized in AOCI ¹				Weighted average discount rate ²		% of carrying value to par
(Amounts in millions)	No. of tranches	Par amount		Amortized cost		Carrying value		Net unrealized losses recognized in AOCI ¹				Weighted average discount rate ²		September 30, 2012	June 30, 2012	Change
Performing CDOs
Predominantly bank CDOs	30	$	887	$	792	$	637		$	(155	)		5.34%	72%	63%	9%
Insurance-only CDOs	21	450		444		322			(122		)		8.51%	72%	73%	(1)%
Other CDOs	7	79		68		62			(6		)		7.29%	78%	76%	2%
Total performing CDOs	58	1,416		1,304		1,021			(283		)		6.46%	72%	67%	5%
Nonperforming CDOs ³
Deferring interest, but no credit impairment	3	72		72		19			(53		)		13.69%	26%	29%	(3)%
Credit impairment prior to last 12 months	32	593		437		128			(309		)		13.44%	22%	23%	(1)%
Credit impairment during last 12 months	23	444		275		63			(212		)		14.84%	14%	16%	(2)%
Total nonperforming CDOs	58	1,109		784		210			(574		)		14.02%	19%	21%	(2)%
Total CDOs	116	$	2,525	$	2,088	$	1,231		$	(857	)		9.78%	49%	47%	2%
	December 31, 2011
(Amounts in millions)	No. of tranches	Par amount		Amortized cost		Carrying value		Net unrealized losses recognized in AOCI ¹				Weighted average discount rate ²		% of carrying value to par
Performing CDOs
Predominantly bank CDOs	32	$	956	$	846	$	615		$	(231	)		7.06%	64%
Insurance-only CDOs	21	455		449		359			(90		)		5.75%	79%
Other CDOs	7	86		74		65			(9		)		6.87%	76%
Total performing CDOs	60	1,497		1,369		1,039			(330		)		6.65%	69%
Nonperforming CDOs ³
Deferring interest, but no credit impairment	3	72		72		17			(55		)		15.24%	24%
Credit impairment prior to last 12 months	37	676		498		120			(378		)		15.31%	18%
Credit impairment during last 12 months	18	365		217		43			(174		)		16.17%	12%
Total nonperforming CDOs	58	1,113		787		180			(607		)		15.59%	16%
Total CDOs	118	$	2,610	$	2,156	$	1,219		$	(937	)		10.46%	47%

¹Accumulated other comprehensive income, amounts presented are pretax.

² Margin over related LIBOR index.

³ Defined as either deferring current interest (“PIKing”) or OTTI; the majority are predominantly bank CDOs.

No significant assumption changes were made during the third quarter of 2012 to the internal model used to estimate fair values of CDOs. A pool specific prepayment rate continues to be calculated with reference to both (a) the percentage of each pool’s performing collateral consisting of securities issued by small banks, as well as, (b) the percentage which consists of collateral from large banks with investment grade ratings. Such large banks are assumed to prepay fully by the end of 2015. After 2015, each pool is assumed to prepay at a 3% annual rate.

For the third quarter of 2012, the resulting average annual prepayment rate assumption for pools which include both large and small banks is 7.92% for each year through 2015, followed by an annual prepayment rate assumption of 3% thereafter. For pools without large banks, we assume a 3% annual prepayment rate.

Table of Contents

ZIONS BANCORPORATION AND SUBSIDIARIES

For the best performing banks, the floors on the short-term and medium-term probabilities of default remain at 30 bps and 48 bps, respectively. The assumed long-term probabilities of default remain at 65 bps.

During the third quarter of 2012, the portfolio fair value increased in the senior tranches. The increases were driven by collateral credit quality improvements, prepayments, and improving credit spreads.

Valuation Sensitivity of Level 3 Bank and Insurance CDOs

The following schedule sets forth the sensitivity of the current CDO fair values, using the licensed third-party model, to changes in the most significant assumptions utilized in the model.



(Amounts in millions)
		Held-to-maturity						Available-for-sale
Fair value at September 30, 2012		$	119					$	942
		Incremental				Cumulative		Incremental				Cumulative
Currently Modeled Assumptions
Expected collateral credit losses ¹
Loss percentage from currently defaulted or deferring collateral ²						4.4	%					20.5	%
Projected loss percentage from currently performing collateral
1-year		0.3		%		4.7	%	0.5		%		21.0	%
years 2-5		1.6		%		6.4	%	1.2		%		22.3	%
years 6-30		10.9		%		17.3	%	9.2		%		31.5	%
Discount rate ³
Weighted average spread over LIBOR		951			bp			1,061			bp
Sensitivity of Modeled Assumptions
Increase (decrease) in fair value due to increase in projected loss percentage from currently performing collateral ⁴	25%	$	(0.6	)				$	(3.9	)
	50%	(1.2		)				(7.8		)
	100%	(2.4		)				(16.3		)
Increase (decrease) in fair value due to increase in projected loss percentage from currently performing collateral ⁴ and the immediate default of all deferring collateral with no recovery	25%	$	(7.5	)				$	(91.1	)
	50%	(8.0		)				(94.7		)
	100%	(9.0		)				(102.7		)
Increase (decrease) in fair value due to increase in discount rate	+100 bp	$	(10.3	)				$	(63.5	)
	+ 200 bp	(19.4		)				(119.6		)
Increase (decrease) in fair value due to increase in Forward LIBOR Curve	+ 100 bp	$	8.7					$	41.6
Increase (decrease) in fair value due to:
increase in prepayment assumption⁵	+1%	$	4.0					$	27.4
increase in prepayment assumption⁶	+2%	7.9						53.1

¹The Company uses an incurred credit loss model which specifies cumulative losses at the 1-year, 5-year, and 30-year points from the date of valuation. These current and projected losses are reflected in the CDO’s fair value.


²	Weighted average percentage of collateral that is defaulted due to bank failures, or deferring payment as allowed under the terms of the security, including a 0% recovery rate on defaulted collateral and a credit-specific probability of default on deferring collateral which ranges from 2.18% to 100%.

³The discount rate is a spread over the LIBOR forward curve at the date of valuation.

⁴Percentage increase is applied to incremental projected loss percentages from currently performing collateral. For example, the 50% and 100% stress scenarios for AFS securities would result in cumulative 30-year losses of 37.0% = 31.5%+50%(0.5%+1.2%+9.2%) and 42.4% = 31.5%+100%(0.5%+1.2%+9.2%), respectively.

⁵Prepayment rate for small banks increased to 4% per year for each year through maturity.


⁶	Prepayment rate for small banks increased to 5% per year for each year through maturity.

Table of Contents

ZIONS BANCORPORATION AND SUBSIDIARIES

Bank Collateral Deferrals

The Company’s loss and recovery experience as of September 30, 2012 (and our Level 3 modeling assumption) is essentially a 100% loss on defaults on bank collateral CDOs, although we have, to date, received several, generally small, recoveries on defaults. Our experience with deferring bank collateral has been that 50% has defaulted, and approximately 32% remains within the allowable deferral period. Additionally, 63 issuing banks, with collateral aggregating to 18% of all deferrals and 36% of all surviving deferrals, have either come current and resumed interest payments on their trust preferred securities or have announced that they intend to do so at the next payment date. Banks may come current on their trust preferred securities for one or more quarters and then re-defer. This pattern has occurred in five of the 63 banks which had resumed payment after deferring. Further information on the Company’s valuation process is detailed in Note 9 of the Notes to Consolidated Financial Statements.

The following schedules provide additional information on the below-investment-grade rated bank and insurance trust preferred CDOs’ portion of the AFS and HTM portfolios. The schedules reflect data and assumptions that are included in the calculations of fair value and OTTI. The schedules utilize the lowest rating assigned by any rating agency to identify those securities below investment grade. The schedules segment the securities by whether or not they have been determined to have OTTI, and by original ratings level to provide granularity on the seniority level of the securities and the distribution of unrealized losses. The best and worst pool-level statistic for each original ratings subgroup is presented, not the best and worst single security within the original ratings grouping. The number of issuers and number of currently performing issuers noted in the later schedule are from the same security. The remaining statistics may not be from the same security.

BANK AND INSURANCE TRUST PREFERRED CDO VALUES CURRENTLY RATED BELOW INVESTMENT GRADE –

SORTED BY WHETHER OTTI HAS BEEN TAKEN AND BY ORIGINAL RATINGS

As of September 30, 2012



				Total									Credit loss						Valuation losses ¹
(Dollar amounts in millions)	Number of securities	% of portfolio		Par value		Amortized cost		Estimated fair value		Unrealized loss			Current year			Life-to- date			Life-to- date
Original ratings of securities, no OTTI recognized:
Original AAA	25	36.5	%	$	823.8	$	740.8	$	587.5	$	(153.3	)	$	—		$	—		$	(98.5	)
Original A	18	18.9	%	426.5		426.6		186.4		(240.2		)	—			—			—
Original BBB	5	2.1	%	46.5		46.5		20.7		(25.8		)	—			—			—
Total Non-OTTI		57.5	%	1,296.8		1,213.9		794.6		(419.3		)	—			—			(98.5		)
Original ratings of securities, OTTI recognized:
Original AAA	1	2.2	%	50.0		43.4		18.6		(24.9		)	—			(4.8		)	(1.9		)
Original A	43	37.3	%	842.9		601.8		156.9		(444.9		)	(19.9		)	(243.5		)	—
Original BBB	6	3.0	%	67.1		24.0		2.2		(21.8		)	(0.1		)	(42.9		)	—
Total OTTI		42.5	%	960.0		669.2		177.7		(491.6		)	(20.0		)	(291.2		)	(1.9		)
Total noninvestment grade bank and insurance CDOs		100.0	%	$	2,256.8	$	1,883.1	$	972.3	$	(910.9	)	$	(20.0	)	$	(291.2	)	$	(100.4	)



	Average amount of each security held ²
(In millions)	Par value		Amortized cost		Estimated fair value		Unrealized gain (loss)
Original ratings of securities, no OTTI recognized:
Original AAA	$	31.7	$	28.5	$	22.6	$	(5.9	)
Original A	16.4		16.4		7.2		(9.2		)
Original BBB	9.3		9.3		4.1		(5.2		)
Original ratings of securities, OTTI recognized:
Original AAA	50.0		43.4		18.6		(24.8		)
Original A	16.2		11.6		3.0		(8.6		)
Original BBB	11.2		4.0		0.4		(3.6		)

¹ Valuation losses relate to securities purchased from Lockhart Funding LLC prior to its consolidation in June 2009.

²The Company may have more than one holding of the same security.

Table of Contents

ZIONS BANCORPORATION AND SUBSIDIARIES

POOL LEVEL PERFORMANCE AND PROJECTIONS FOR BELOW-INVESTMENT-GRADE RATED-BANK AND INSURANCE TRUST PREFERRED CDOs

As of September 30, 2012



	Current lowest rating	# of issuers in collateral pool	# of issuers currently performing¹	% of original collateral defaulted ²		% of original collateral deferring ³		Subordination as a % of performing collateral ⁴			Collateral- ization %⁵			Present value of expected cash flows discounted at effective rate as a % of par⁶		Lifetime additional projected loss from performing collateral ⁷
Original Ratings of Securities, Non-OTTI:
Original AAA
Best	BB	23	21	2.62	%	4.26	%	82.84	%		637.90	%		100	%	—
Weighted average				16.72	%	11.83	%	42.03	%		257.69	%		100	%	10.39	%
Worst	CC	17	8	28.71	%	23.10	%	13.80	%		163.86	%		100	%	13.95	%
Original A
Best	B	32	32	—		—		27.94	%		309.29	%		100	%	10.87	%
Weighted average				2.87	%	6.64	%	13.63	%		139.51	%		100	%	12.38	%
Worst	C	6	4	11.15	%	21.48	%	(8.87	)%	⁸	74.91	%	⁹	100	%	13.70	%
Original BBB
Best	CCC	32	32	—		—		19.43	%		355.80	%		100	%	11.34	%
Weighted average				1.33	%	3.89	%	10.92	%		255.35	%		100	%	12.57	%
Worst	CC	22	19	4.00	%	9.26	%	2.55	%		142.25	%		100	%	13.70	%
Original Ratings of Securities, OTTI:
Original AAA
Single Security	CCC	43	26	16.89	%	21.79	%	32.41	%		250.38	%		90	%	9.94	%
Original A
Best	CC	36	31	0.75	%	1.89	%	(2.55	)%		94.12	%		100	%	—
Weighted average				12.54	%	14.91	%	(15.33	)%		66.45	%		83	%	11.27	%
Worst	C	3	—	36.18	%	30.15	%	(58.76	)%		3.85	%		41	%	15.93	%
Original BBB
Best	C	40	34	6.28	%	6.53	%	(5.80	)%		58.42	%		99	%	8.94	%
Weighted average				14.94	%	19.87	%	(30.13	)%		(146.43	)%		49	%	10.68	%
Worst	C	34	14	19.03	%	27.60	%	(58.44	)%		(228.96	)%		—		13.44	%

¹Excludes both defaulted issuers and issuers that have elected to defer payment of current interest.

² Collateral is identified as defaulted when a regulator closes an issuing bank.

³ Collateral is identified as deferring when the Company becomes aware that an issuer has announced or elected to defer interest payment on trust preferred debt.

⁴ Utilizes the Company’s loss assumption of 100% on defaulted collateral and the Company’s issuer specific loss assumption of from 2.18% to 100% dependent on credit for each deferring piece of collateral. “Subordination” in the schedule includes the effects of seniority level within the CDOs’ liability structure, the Company’s loss and recovery rate assumption for deferring but not defaulted collateral and a 0% recovery rate for defaulted collateral. The numerator is all collateral less the sum of (i) 100% of the defaulted collateral, (ii) the sum of the projected net loss amounts for each piece of deferring but not defaulted collateral and (iii) the amount of each CDO’s debt which is either senior to or pari passu with our security’s priority level. The denominator is all collateral less the sum of (i) 100% of the defaulted collateral and (ii) the sum of the projected net loss amounts for each piece of deferring but not defaulted collateral.

⁵ Utilizes the Company’s loss assumption of 100% on defaulted collateral and the Company’s issuer specific loss assumption ranging from 2.18% to 100% dependent on credit for each deferring piece of collateral. “Collateralization” in the schedule identifies the portion of a CDO tranche that is backed by nondefaulted collateral. The numerator is all collateral less the sum of (i) 100% of the defaulted collateral, (ii) the sum of the projected net loss amounts for each piece of deferring but not defaulted collateral and (iii) the amount of each CDO’s debt which is senior to our security’s priority level. The denominator is the par amount of the tranche. Par is defined as the original par less any principal paydowns.

⁶ For OTTI securities, this statistic approximates the extent of OTTI credit losses taken.

Table of Contents

ZIONS BANCORPORATION AND SUBSIDIARIES

⁷ This is the same statistic presented in the preceding sensitivity schedule and incorporated in the fair value and OTTI calculations. The statistic is the sum of incremental projected loss percentages from currently paying collateral for year one, years two through five and years six through thirty.

⁸ Negative subordination is projected to be remedied by excess spread prior to maturity.

⁹Collateralization shortfall is projected to be remedied by excess spread prior to maturity.

Certain original A-rated securities described in the previous schedule currently have negative subordination and are therefore under-collateralized, and yet are not identified as having OTTI. This is because our cash flow projections for these securities show negative subordination being cured prior to the securities’ maturities. The collateral that backs a tranche can increase if the more senior liabilities of the CDO decrease. This occurs when collateral deterioration due to defaults and deferral triggers alternative waterfall provisions for the cash flow. A structural credit protection feature reroutes cash (interest collections) from the more junior classes of debt and income notes to pay down the principal of the most senior liabilities. As the most senior liabilities are paid down while the collateral remains unchanged (and if there are no additional unexpected defaults), the next level of tranches becomes better secured. The rerouting continues to divert cash away from the most junior classes of debt or income notes and gives better security to our tranche. Our cash flow projections predict full payment of amortized cost and interest.

As shown in the table below, 35 of our CDO securities, representing 42.4% of the portfolio’s fair value at September 30, 2012, were upgraded by one or more NRSROs during the first nine months of 2012. These upgrades were attributed to improvements in over-collateralization ratios and deleveraging combined with less severe rating agency assumptions and methodology.

BANK AND INSURANCE TRUST PREFERRED CDOs

		September 30, 2012
(In millions)	No. of securities		Par amount		Amortized cost			Fair value
Year-to-date rating changes ¹
Upgrade		35	$	1,013		$	926	$	447
No change		63	1,236			960		501
Downgrade		6	119			91		106
		104	$	2,368		$	1,977	$	1,054

¹By any NRSRO

Other-Than-Temporary Impairment – Investments in Debt Securities

We review investments in debt securities on an ongoing basis for the presence of OTTI. For securities where an internal income-based cash flow model or third party valuation service produces a loss-adjusted expected cash flow for the security, the presence of OTTI is identified and the amount of the credit component of OTTI is calculated by discounting this loss-adjusted cash flow at the security specific effective interest rate and comparing that value to the Company’s amortized cost of the security.

We review the relevant facts and circumstances each quarter in order to assess our intentions regarding any potential sales of securities, as well as the likelihood that we would be required to sell prior to recovery of amortized cost. To date, for each security whose fair value is below amortized cost, we have determined that we do not intend to sell the security, and that it is not more likely than not that we will be required to sell the security before recovery of its amortized cost basis. We then evaluate the difference between the fair value and the amortized cost of each security and identify if any of the difference is due to credit. The credit component of the difference is recognized in earnings and the amortized cost is written down for each security found to have OTTI.

For some CDO tranches, for which we previously recorded OTTI, expected future cash flows have remained stable or have slightly improved subsequent to the quarter that OTTI was identified and recorded. For other CDO tranches, an adverse change in the expected future cash flow has resulted in the recording of additional OTTI. In both situations, while a large difference may remain between fair value and amortized cost, the difference is not due to credit. The

Table of Contents

ZIONS BANCORPORATION AND SUBSIDIARIES

expected future cash flow substantiates the return of the full amortized cost as described below. The primary drivers of unrealized losses in these CDOs are further discussed in Note 4 of the Notes to Consolidated Financial Statements. We utilize a present value technique to both identify the OTTI present in the CDO tranches and to estimate fair value.

During the third quarter of 2012, the Company recognized credit-related net impairment losses on CDOs of $2.7 million compared to losses of $13.3 million in the same prior year period. These same amounts for the first nine months of 2012 and 2011 were $20.3 million and $21.6 million, respectively. The OTTI in the third quarter of 2012 was due primarily to the impact of prepayments on the value of junior CDO tranches.

Exposure to State and Local Governments

The Company provides multiple services to state and local governments (referred together as “municipalities”), including deposit services, loans, investment banking services, and by investing in securities issued by the municipalities.

The following table summarizes the Company’s exposure to state and local municipalities:



(In millions)	September 30, 2012			December 31, 2011
Loans and leases		$	469		$	441
Held-to-maturity – municipal securities		512			565
Available-for-sale – municipal securities		114			122
Available-for-sale – auction rate securities		7			70
Trading account – municipal securities		9			9
Unused commitments to extend credit		67			103
Total direct exposure to municipalities		$	1,178		$	1,310

Company policy requires that extensions of credit to municipalities be subjected to specific underwriting standards. At September 30, 2012, all but one of the outstanding municipal loans were performing and on accrual. A significant amount of the municipal loan and lease portfolio is secured by real estate and equipment, and approximately 94% of the outstanding credits were originated by Zions Bank, CB&T, Amegy, and Vectra. See Note 5 of the Notes to Consolidated Financial Statements for additional information about the credit quality of these municipal loans

All municipal securities are reviewed quarterly for OTTI, refer to Note 4 of the Notes to Consolidated Financial Statements for more information. HTM securities consist of unrated bonds issued by small local governmental entities and are purchased through private placements, often in situations in which one of the Company’s subsidiaries has acted as a financial advisor to the municipality. Prior to purchase, the issuers of municipal securities are evaluated by the Company for their creditworthiness, and some of the securities are guaranteed by third parties. Of the AFS municipal securities, 93% are rated by major credit rating agencies and were rated investment grade as of September 30, 2012. Municipal securities in the trading account are held for resale to customers. The Company also underwrites municipal bonds and sells most of them to outside customers.

European Exposure

The Company is monitoring global economic conditions and is aware of concerns over the creditworthiness of the governments of Portugal, Ireland, Italy, Greece, and Spain. The Company has not granted loans to and does not own securities issued by these governments, and does not have any material exposure to companies or individuals in those countries.

In the normal course of business, the Company may enter into transactions with subsidiaries of companies and financial institutions headquartered in Portugal, Ireland, Italy, Greece, or Spain. Such transactions may include deposits, loans, letters of credit, and derivatives, as well as foreign currency exchange agreements. As of September 30, 2012, these transactions did not present any material direct or indirect risk exposure to the Company. Among the derivative transactions, the Company has entered into a TRS agreement with Deutsche Bank AG with regard to certain bank and insurance trust preferred CDOs (see Note 6 of the Notes to Consolidated Financial Statements). If Deutsche Bank were unable to perform under the TRS, the agreement would terminate at no cost to Zions. There would be no balance sheet

Table of Contents

ZIONS BANCORPORATION AND SUBSIDIARIES

impact from cancellation, and the Company would save approximately $5.4 million in fees quarterly. However, if the TRS were cancelled, the Company would lose the potential future risk mitigation benefits of the TRS, and regulatory risk weighted assets under the Basel I framework would increase by approximately $3.3 billion, which would reduce regulatory risk-based capital ratios by approximately 7%.

Loan Portfolio

The following table sets forth the loan portfolio by type of loan:



	September 30, 2012				December 31, 2011				September 30, 2011
(Amounts in millions)	Amount		% of total loans		Amount		% of total loans		Amount		% of total loans
Commercial:
Commercial and industrial	$	10,748	28.9	%	$	10,335	27.8	%	$	9,733	26.5	%
Leasing	405		1.1	%	380		1.0	%	366		1.0	%
Owner occupied	7,669		20.6	%	8,159		22.0	%	8,326		22.7	%
Municipal	469		1.3	%	441		1.2	%	440		1.2	%
Total commercial	19,291				19,315				18,865
Commercial real estate:
Construction and land development	1,956		5.3	%	2,265		6.1	%	2,467		6.7	%
Term	8,140		21.9	%	7,883		21.2	%	7,723		21.0	%
Total commercial real estate	10,096				10,148				10,190
Consumer:
Home equity credit line	2,175		5.8	%	2,187		5.9	%	2,161		5.9	%
1-4 family residential	4,181		11.2	%	3,921		10.6	%	3,891		10.6	%
Construction and other consumer real estate	320		0.9	%	306		0.8	%	303		0.8	%
Bankcard and other revolving plans	295		0.8	%	291		0.8	%	278		0.8	%
Other	224		0.6	%	226		0.6	%	236		0.6	%
Total consumer	7,195				6,931				6,869
FDIC-supported loans ¹	589		1.6	%	751		2.0	%	801		2.2	%
Total net loans	$	37,171	100.0	%	$	37,145	100.0	%	$	36,725	100.0	%

¹ FDIC-supported loans represent loans acquired from the FDIC subject to loss sharing agreements.

Most of the loan portfolio growth during the first nine months of 2012 occurred in commercial and industrial, 1-4 family residential, and commercial real estate term loans. The impact of these increases was partially offset by declines in commercial owner occupied, and construction and land development loans.

Other Noninterest-Bearing Investments

The following table sets forth the Company’s other noninterest-bearing investments:



(In millions)	September 30, 2012			December 31, 2011			September 30, 2011
Bank-owned life insurance		$	453		$	443		$	440
Federal Home Loan Bank stock		113			116			118
Federal Reserve stock		132			132			130
SBIC investments		47			39			41
Non-SBIC investment funds and other		116			121			117
Trust preferred securities		14			14			14
		$	875		$	865		$	860

Table of Contents

ZIONS BANCORPORATION AND SUBSIDIARIES

Deposits

Deposits, both interest-bearing and noninterest-bearing, are a primary source of funding for the Company. Average total deposits for the first nine months of 2012 increased by 4.8% compared to the same prior year period, with average interest-bearing deposits decreasing 0.2% and average noninterest-bearing deposits increasing 14.3%. The decline in interest-bearing deposits resulted from actions taken by the Company to reduce higher cost deposits, such as time deposits.

Core deposits at September 30, 2012, which exclude time deposits larger than $100,000 and brokered deposits, increased by 3.0%, or $1,220 million, from December 31, 2011. The increase was mainly due to increases in noninterest-bearing demand, and savings and NOW deposits, partially offset by decreases in money market, time, and foreign deposits.

Demand, savings and money market deposits comprised 89.7% of total deposits at September 30, 2012, compared with 88.4% and 87.5% as of December 31, 2011 and September 30, 2011, respectively.

During 2011 and 2012, the Company maintained a low level of brokered deposits due to excess liquidity and weak loan demand. At September 30, 2012, total deposits included $41 million of brokered deposits compared to $204 million at December 31, 2011 and $251 million at September 30, 2011.

RISK ELEMENTS

Since risk is inherent in substantially all of the Company’s operations, management of risk is an integral part of its operations and is also a key determinant of its overall performance. We apply various strategies to reduce the risks to which the Company’s operations are exposed, including credit, interest rate and market, liquidity and operational risks.

Credit Risk Management

Credit risk is the possibility of loss from the failure of a borrower, guarantor, or another obligor to fully perform under the terms of a credit-related contract. Credit risk arises primarily from the Company’s lending activities, as well as from off-balance sheet credit instruments.

Centralized oversight of credit risk is provided through credit policies, credit administration, and credit examination functions at the Parent. We have structured the organization to separate the lending function from the credit administration function, which has added strength to the control over, and the independent evaluation of, credit activities. Formal loan policies and procedures provide the Company with a framework for consistent underwriting and a basis for sound credit decisions. In addition, the Company has a well-defined set of standards for evaluating its loan portfolio and management utilizes a comprehensive loan grading system to determine the risk potential in the portfolio. Furthermore, an independent internal credit examination department periodically conducts examinations of the Company’s lending departments. These examinations are designed to review credit quality, adequacy of documentation, appropriate loan grading administration and compliance with lending policies, and reports thereon are submitted to management and to the Risk Oversight Committee of the Board of Directors. New, expanded, or modified products and services, as well as new lines of business, are approved by the corporate New Product Review Committee.

Both the credit policy and the credit examination functions are managed centrally. Each affiliate bank is able to modify corporate credit policy to be more conservative; however, corporate approval must be obtained if a bank wishes to create a more liberal policy. Historically, only a limited number of such modifications have been approved. This entire process has been designed to place an emphasis on strong underwriting standards and early detection of potential problem credits so that action plans can be developed and implemented on a timely basis to mitigate any potential losses.

Credit risk associated with counterparties to off-balance sheet credit instruments is generally limited to the hedging of interest rate risk through the use of swaps and futures. Our subsidiary banks that engage in this activity have ISDA agreements in place under which derivative transactions are entered into with major derivative dealers. Each ISDA agreement details the collateral arrangements between our subsidiaries and their counterparties. In every case, the amount of the collateral required to secure the exposed party in the derivative transaction is determined by the fair value of the derivative and the credit rating of the party with the obligation. Some of the counterparties are domiciled in Europe; however, the Company’s maximum exposure that is not cash collateralized to any single counterparty was not material as of September 30, 2012.

Table of Contents

ZIONS BANCORPORATION AND SUBSIDIARIES

The Company’s credit risk management strategy includes diversification of its loan portfolio. The Company attempts to avoid the risk of an undue concentration of credits in a particular collateral type or with an individual customer or counterparty. The Company has adopted and adheres to concentration limits on various types of commercial real estate lending, particularly construction and land development lending, leveraged lending, municipal lending, and lending to the energy sector. All of these limits are continually monitored and revised as necessary. The majority of the Company’s business activity is with customers located within the geographical footprint of its banking subsidiaries.

The credit quality of the Company’s loan portfolio improved further during the first nine months of 2012. Nonperforming lending-related assets decreased by 21.2% and 34.1% from December 31, 2011 and September 30, 2011, respectively. Gross charge-offs for the first nine months of 2012 declined to $212 million from $439 million for the first nine months of 2011. Net charge-offs decreased to $136 million from $361 million for the same periods.

A more comprehensive discussion of our credit risk management is contained in the Company’s 2011 Annual Report on Form 10-K.

FDIC-Supported Loans

The Company’s loan portfolio includes loans that were acquired from failed banks in 2009: Alliance Bank, Great Basin Bank, and Vineyard Bank. These loans include nonperforming loans and other loans with characteristics indicative of a high credit risk profile. Substantially all of these loans are covered under loss sharing agreements with the FDIC for which the FDIC generally will assume 80% of the first $275 million of credit losses for the Alliance Bank assets, $40 million of credit losses for the Great Basin Bank assets, $465 million of credit losses for the Vineyard Bank assets and 95% of the credit losses in excess of those amounts. The Company does not expect to meet this maximum threshold and, therefore, its financial exposure to losses from these assets is substantially limited. In addition, the acquired loans have performed better than originally expected. FDIC-supported loans represent 1.6% of the Company’s total loan portfolio at September 30, 2012.

NET LOSSES COVERED BY FDIC LOSS SHARING AGREEMENTS



	Inception through September 30, 2012
(In millions)	Total actual net losses			Threshold
Alliance Bank		$	172		$	275
Vineyard Bank		211			465
Great Basin Bank		12			40
		$	395		$	780

Government Agency Guaranteed Loans

The Company participates in various guaranteed lending programs sponsored by U.S. government agencies, such as the Small Business Administration, Federal Housing Authority, Veterans’ Administration, Export-Import Bank of the U.S., and the U.S. Department of Agriculture. As of September 30, 2012, the principal balance of these loans was $597 million, and the guaranteed portion amounted to $444 million. Most of these loans were guaranteed by the Small Business Administration.

Government agency guaranteed loans, excluding FDIC-supported loans, consisted of the following as of September 30, 2012.



(Amounts in millions)	September 30, 2012			Percent guaranteed		December 31, 2011			Percent guaranteed
Commercial		$	573		74%		$	581		74%
Commercial real estate		21			75%		20			75%
Consumer		3			100%		2			100%
Total loans excluding FDIC-supported loans		$	597		74%		$	603		74%

Table of Contents

ZIONS BANCORPORATION AND SUBSIDIARIES

Commercial Lending

The following schedule provides selected information regarding lending concentrations to certain industries in our commercial lending portfolio.



(Amounts in millions)	September 30, 2012				December 31, 2011
	Amount		Percent		Amount		Percent
Real estate, rental and leasing	$	2,790	14.5	%	$	2,755	14.3	%
Manufacturing	2,049		10.6	%	2,069		10.7	%
Mining, quarrying and oil and gas extraction	1,956		10.1	%	1,763		9.1	%
Retail trade	1,610		8.3	%	1,646		8.5	%
Wholesale trade	1,442		7.5	%	1,600		8.3	%
Healthcare and social assistance	1,209		6.3	%	1,245		6.4	%
Construction	1,039		5.4	%	1,083		5.6	%
Transportation and warehousing	985		5.1	%	949		4.9	%
Finance and insurance	935		4.8	%	865		4.5	%
Professional, scientific and technical services	899		4.7	%	953		4.9	%
Accommodation and food services	766		4.0	%	825		4.3	%
Other ¹	3,611		18.7	%	3,562		18.5	%
Total	$	19,291	100.0	%	$	19,315	100.0	%

¹ No other industry group exceeds 5%.

Table of Contents

ZIONS BANCORPORATION AND SUBSIDIARIES

Commercial Real Estate Loans

Selected information regarding our commercial real estate (“CRE”) loan portfolio is presented in the following table:

COMMERCIAL REAL ESTATE PORTFOLIO BY LOAN TYPE AND COLLATERAL LOCATION



(Amounts in millions)		Collateral Location
Loan Type	As of Date	Arizona			Northern California			Southern California			Nevada			Colorado			Texas			Utah/ Idaho			Washing-ton			Other ¹			Total			% of total CRE
Commercial term
Balance outstanding	9/30/2012	$	1,136.7		$	608.3		$	2,206.8		$	629.8		$	483.8		$	969.2		$	1,015.7		$	246.0		$	843.2		$	8,139.5		80.6	%
% of loan type		14.0		%	7.5		%	27.1		%	7.7		%	5.9		%	11.9		%	12.5		%	3.0		%	10.4		%	100.0		%
Delinquency rates ²:
30-89 days	9/30/2012	0.3		%	0.2		%	0.4		%	0.5		%	1.3		%	0.7		%	0.2		%	—			1.4		%	0.5		%
	12/31/2011	0.6		%	0.4		%	1.2		%	0.5		%	0.5		%	1.6		%	0.5		%	—			1.1		%	0.9		%
≥ 90 days	9/30/2012	0.9		%	1.2		%	0.5		%	1.5		%	0.6		%	1.8		%	0.2		%	0.5		%	2.2		%	1.0		%
	12/31/2011	0.9		%	0.3		%	0.3		%	0.4		%	—			1.7		%	0.6		%	—			2.1		%	0.8		%
Accruing loans past due 90 days or more	9/30/2012	$	3.8		$	—		$	—		$	—		$	—		$	—		$	—		$	—		$	—		$	3.8
	12/31/2011	0.4			—			—			—			—			3.2			—			—			0.6			4.2
Nonaccrual loans	9/30/2012	15.8			8.5			17.5			22.1			8.3			23.0			6.3			4.7			48.9			155.1
	12/31/2011	13.7			3.4			26.6			37.3			13.9			23.3			9.1			—			28.9			156.2
Residential construction and land development
Balance outstanding	9/30/2012	$	78.6		$	40.3		$	162.4		$	1.9		$	43.0		$	217.3		$	127.3		$	0.5		$	39.9		$	711.2		7.0	%
% of loan type		11.1		%	5.7		%	22.8		%	0.3		%	6.0		%	30.5		%	17.9		%	0.1		%	5.6		%	100.0		%
Delinquency rates ²:
30-89 days	9/30/2012	0.9		%	6.4		%	—			—			0.6		%	0.4		%	0.3		%	—			—			0.7		%
	12/31/2011	0.6		%	14.1		%	—			0.8		%	13.8		%	0.4		%	0.2		%	—			—			1.3		%
≥ 90 days	9/30/2012	4.4		%	—			1.0		%	16.1		%	2.8		%	13.4		%	2.0		%	—			—			5.4		%
	12/31/2011	2.7		%	—			3.9		%	6.8		%	5.3		%	11.6		%	4.5		%	24.1		%	—			6.7		%
Accruing loans past due 90 days or more	9/30/2012	$	—		$	—		$	—		$	—		$	0.3		$	—		$	—		$	—		$	—		$	0.3
	12/31/2011	0.5			—			0.2			—			—			0.1			—			—			—			0.8
Nonaccrual loans	9/30/2012	8.6			—			2.6			0.9			0.9			33.0			5.2			—			—			51.2
	12/31/2011	13.0			—			6.4			5.0			1.9			49.6			15.0			0.2			—			91.1
Commercial construction and land development
Balance outstanding	9/30/2012	$	134.9		$	37.2		$	209.3		$	85.1		$	92.5		$	402.4		$	251.1		$	24.5		$	8.0		$	1,245.0		12.4	%
% of loan type		10.8		%	3.0		%	16.8		%	6.8		%	7.4		%	32.3		%	20.2		%	2.0		%	0.7		%	100.0		%
Delinquency rates ²:
30-89 days	9/30/2012	0.1		%	1.8		%	—			—			0.9		%	0.6		%	2.9		%	—			—			0.9		%
	12/31/2011	1.6		%	—			—			—			4.4		%	1.7		%	—			—			—			1.2		%
≥ 90 days	9/30/2012	1.1		%	1.6		%	0.1		%	—			—			5.8		%	0.4		%	—			—			2.2		%
	12/31/2011	2.1		%	—			1.1		%	5.6		%	5.5		%	6.0		%	1.7		%	—			—			3.6		%
Accruing loans past due 90 days or more	9/30/2012	$	0.9		$	—		$	—		$	—		$	—		$	0.2		$	—		$	—		$	—		$	1.1
	12/31/2011	—			—			1.6			—			—			0.1			—			—			—			1.7
Nonaccrual loans	9/30/2012	1.2			0.6			0.3			20.5			—			34.0			14.1			2.9			—			73.6
	12/31/2011	5.9			—			—			12.1			9.1			81.4			20.2			—			—			128.7
Total construction and land development	9/30/2012	$	213.5		$	77.5		$	371.7		$	87.0		$	135.5		$	619.7		$	378.4		$	25.0		$	47.9		$	1,956.2
Total commercial real estate	9/30/2012	$	1,350.2		$	685.8		$	2,578.5		$	716.8		$	619.3		$	1,588.9		$	1,394.1		$	271.0		$	891.1		$	10,095.7		100.0	%

¹No other geography exceeds $109 million for all three loan types.

²Delinquency rates include nonaccrual loans.

Approximately 35% of the commercial real estate term loans consist of mini-perm loans as of September 30, 2012. For such loans, construction has been completed and the project has stabilized to a level that supports the granting of a mini-perm loan in accordance with our underwriting standards. Mini-perm loans generally have initial maturities of three to seven years. The remaining 65% of commercial real estate loans are term loans with initial maturities generally of 15 to 20 years. The stabilization criteria for a project to qualify for a term loan differ by product type and include, for example,

Table of Contents

ZIONS BANCORPORATION AND SUBSIDIARIES

criteria related to the cash flow generated by the project, loan-to-value ratio, and occupancy rates.

Approximately 30% of the commercial construction and land development portfolio at September 30, 2012 consists of acquisition and development loans. Most of these acquisition and development properties are secured by specific retail, apartment, office, or other projects. Underwriting on commercial properties is primarily based on the economic viability of the project with heavy consideration given to the creditworthiness of the sponsor. We generally require that the owner’s equity be injected prior to bank advances. Remargining requirements are often included in the loan agreement along with guarantees of the sponsor. Recognizing that debt is paid via cash flow, the projected economics of the project are primary in the underwriting because these determine the ultimate value of the property and its ability to service debt. Therefore, in most projects we look for substantial pre-leasing (with the exception of multifamily projects) in our underwriting and we generally require a minimum projected stabilized debt service coverage ratio of 1.20.

Although lending for residential construction and development involves a different product type, many of the requirements previously mentioned, such as creditworthiness of the developer, up-front injection of the developer’s equity, remargining requirements, and the viability of the project are also important in underwriting a residential development loan. Heavy consideration is given to market acceptance of the product, location, strength of the developer, and the ability of the developer to stay within budget. Progress inspections by qualified independent inspectors are routinely performed before disbursements are made.

Real estate appraisals are ordered and validated independently of the credit officer and the borrower, generally by each bank’s appraisal review function, which is staffed by certified appraisers. In some cases, reports from automated valuation services are used. Appraisals are ordered from outside appraisers at the inception, renewal or, for CRE loans, upon the occurrence of any event causing a downgrade to a “criticized” or “classified” designation. The frequency for obtaining updated appraisals for these adversely graded credits is increased when declining market conditions exist. Advance rates, on an “as completed basis,” will vary based on the viability of the project and the creditworthiness of the sponsor, but corporate guidelines generally limit advances to 50% for raw land, 65% for land development, 65% for finished commercial lots, 75% for finished residential lots, 80% for pre-sold homes, 75% for models and spec homes, and 75% for commercial properties. Exceptions may be granted on a case-by-case basis.

Loan agreements require regular financial information on the project and the sponsor in addition to lease schedules, rent rolls and, on construction projects, independent progress inspection reports. The receipt of this financial information is monitored and calculations are made to determine adherence to the covenants set forth in the loan agreement. Additionally, loan-by-loan reviews of pass grade loans for all commercial and residential construction and land development loans are performed quarterly at Zions Bank, NBA, and Vectra. Amegy, NSB and CB&T perform such reviews semiannually.

Interest reserves are generally established as a loan disbursement budget item for real estate construction or development loans. We generally require borrowers to put their equity into the project prior to loan disbursements on these loans. This enables the bank to ensure the availability of equity in the project. The Company’s practice is to monitor the construction, sales and/or leasing progress to determine whether or not the project remains viable. If, at any time during the life of the credit, the project is determined not to be viable (including the adequacy of the remaining interest reserves), the bank takes appropriate action to protect its collateral position via negotiation and/or legal action as deemed necessary. At September 30, 2012, and September 2011, Zions’ affiliates had 482 and 369 loans with an outstanding balance of $514 million and $388 million where available interest reserves amounted to $65 million and $33 million, respectively. In instances where projects have been determined not to be viable, the interest reserves and other disbursements have been frozen, as appropriate.

We have not been involved to any meaningful extent with insurance arrangements, credit derivatives, or any other default agreements as a mitigation strategy for commercial real estate loans. However, we do make use of personal or other guarantees as risk mitigation strategies.

Commercial real estate loans are sometimes modified to increase the likelihood of collecting the maximum possible amount of the Company’s investment in the loan. In general, the existence of a guarantee that improves the likelihood of repayment is taken into consideration when analyzing a loan for impairment. If the support of the guarantor is

Table of Contents

ZIONS BANCORPORATION AND SUBSIDIARIES

quantifiable and documented, it is included in the potential cash flows and liquidity available for debt repayment and our impairment methodology takes into consideration this repayment source.

Additionally, when we modify or extend a loan, we give consideration to whether the borrower is in financial difficulty, and whether a concession has been granted. In determining if an interest rate concession has been granted, we consider whether the interest rate on the modified loan is equivalent to current market rates for new debt with similar risk characteristics. If the rate in the modification is less than current market rates, it may indicate that a concession was granted and an impairment exists. However, if additional collateral is obtained or if a strong guarantor exists who is believed to be able and willing to support the loan on an extended basis, we also consider the nature and amount of the additional collateral and guarantees in the ultimate determination of whether a concession has been granted.

We obtain and consider updated financial information for the guarantor as part of our determination to extend a loan. The quality and frequency of financial reporting collected and analyzed varies depending on the contractual requirements for reporting, the size of the transaction, and the strength of the guarantor.

Complete underwriting of the guarantor includes, but is not limited to, an analysis of the guarantor’s current financial statements, leverage, liquidity, global cash flow, global debt service coverage, contingent liabilities, etc. The assessment also includes a qualitative analysis of the guarantor’s willingness to perform in the event of a problem and demonstrated history of performing in similar situations. Additional analyses may include personal financial statements, tax returns, liquidity (brokerage) confirmations and other reports, as appropriate. All personal financial statements of customers entering into new relationships with the applicable bank must not be more than 60 days old on the date the transaction is approved. Personal financial statements that are required for existing customers must be no more than 15 months old. Evaluations of the financial strength of the guarantor are performed at least annually.

A qualitative assessment is performed on a case-by-case basis to evaluate the guarantor’s experience, performance track record, reputation, performance of other related projects with which we are familiar, and willingness to work with us. We also utilize market information sources, rating and scoring services in our assessment. This qualitative analysis coupled with a documented quantitative ability to support the loan may result in a higher-quality internal loan grade, which may reduce the level of allowance the Company estimates. Previous documentation of the guarantor’s financial ability to support the loan is discounted if, at any point in time, there is any indication of a lack of willingness by the guarantor to support the loan.

In the event of default, we evaluate the pursuit of any and all appropriate potential sources of repayment, which may come from multiple sources, including the guarantee. A number of factors are considered when deciding whether or not to pursue a guarantor, including, but not limited to, the value and liquidity of other sources of repayment (collateral), the financial strength and liquidity of the guarantor, possible statutory limitations (e.g., single action rule on real estate) and the overall cost of pursuing a guarantee compared to the ultimate amount we may be able to recover. In other instances, the guarantor may voluntarily support a loan without any formal pursuit of remedies.

Consumer Loans

The Company has mainly been an originator of first and second mortgages, generally considered to be of prime quality. Its practice historically has been to sell “conforming” fixed rate loans to third parties, including Fannie Mae and Freddie Mac, for which it makes representations and warranties as to meeting certain underwriting and collateral documentation standards. It has also been the Company’s practice historically to hold variable rate loans in its portfolio. The Company estimates that it does not have any material financial risk as a result of its foreclosure practices or loan “put-backs” by Fannie Mae or Freddie Mac, and has not established any reserves related to these items.

The Company has a portfolio of $360 million of stated income mortgage loans with generally high FICO scores at origination, including “one-time close” loans to finance the construction of homes, which convert into permanent jumbo mortgages. As of September 30, 2012, approximately $26 million of these loans had FICO scores of less than 620. These totals exclude held-for-sale loans. Stated income loans account for approximately $3.6 million, or 27%, of our credit losses in 1-4 family residential first mortgage loans during the first nine months of 2012, and were primarily in Utah and Arizona.

Table of Contents

ZIONS BANCORPORATION AND SUBSIDIARIES

The Company is engaged in home equity credit line lending. At September 30, 2012, the Company’s HECL portfolio totaled $2.2 billion, including FDIC-supported loans. Approximately $1.1 billion of the portfolio is secured by first deeds of trust, while the remaining $1.1 billion is secured by junior liens. The outstanding balances and commitments by origination year for the junior lien HECLs are presented in the following schedule.

JR. LIEN HECLs – OUTSTANDING BALANCES AND TOTAL COMMITMENTS



(In millions)
		September 30, 2012						December 31, 2011
Year of origination	Outstanding balance			Total commitments			Outstanding balance			Total commitments
2012		$	80		$	168
2011		100			188			$	109		$	206
2010		73			133			84			147
2009		70			133			83			149
2008		165			260			184			262
2007		198			307			228			299
2006 and prior		441			945			492			918
Total		$	1,127		$	2,134		$	1,180		$	1,981

More than 99% of the Company’s HECL portfolio is still in the draw period, and approximately 54% is scheduled to begin amortizing within the next five years; however, most of them are expected to be renewed for a second 10-year period after a satisfactory review of the borrower’s credit history. Of the total home equity credit line portfolio including FDIC-supported loans, 0.26% was 90 or more days past due at September 30, 2012 as compared to 0.52% and 0.42% at December 31, 2011 and September 30, 2011, respectively. During the first nine months of 2012, the Company modified $0.1 million of home equity credit lines. The annualized credit losses for the HECL portfolio were 79 and 103 basis points for the first nine months of 2012 and 2011, respectively.

As of September 30, 2012, loans representing approximately 16% of the outstanding balance in the HECL portfolio were estimated to have combined loan-to-value (CLTV) ratios above 100%. Estimated CLTV ratios are based on projecting values forward from the most recent valuation of the underlying collateral using home price indices at the metropolitan area level. Generally, a valuation of collateral is performed at origination. For junior lien HECLs, the estimated current balance of prior liens is added to the numerator in the calculation of CLTV. The additional breakouts for the CLTV as of September 30, 2012 and December 31, 2011 are shown in the following schedule.

HECL PORTFOLIO BY COMBINED LOAN-TO-VALUE



	Percentage of HECL portfolio
CLTV	September 30, 2012			December 31, 2011
>100%		16	%		17	%
90-100%		10	%		11	%
80-89%		14	%		15	%
< 80%		60	%		57	%
		100	%		100	%

Underwriting standards for the HECL portfolio generally include a maximum 80% CLTV with high credit scores at origination. Credit bureau data, credit scores, and estimated CLTV are refreshed on a quarterly basis, and are used to monitor and manage accounts, including amounts available under the lines of credit. The allowance for loan losses is determined through the use of roll rate models, and first lien HECLs are modeled separately from junior lien HECLs. See Note 5 of the Notes to Consolidated Financial Statements for additional information on the allowance.

Table of Contents

ZIONS BANCORPORATION AND SUBSIDIARIES

Nonperforming Assets

As reflected in the following table, the Company’s nonperforming lending-related assets as a percentage of loans and leases and OREO decreased to 2.23% at September 30, 2012, compared with 2.83% at December 31, 2011 and 3.43% at September 30, 2011.

Total nonaccrual loans, excluding FDIC-supported loans, at September 30, 2012 decreased by $186 million from December 31, 2011. The decrease is primarily due to a $95 million decrease in construction and land development, a $25 million decrease in 1-4 family residential, and a $24 million decrease in commercial and industrial loans. The largest total decreases in nonaccrual loans occurred at Amegy, Vectra, and NBA.

The balance of nonaccrual loans can decrease due to pay-downs, charge-offs, and the return of loans to accrual status under certain conditions. If a nonaccrual loan is refinanced or restructured, the new note is immediately placed on nonaccrual. Company policy does not allow the conversion of nonaccrual construction and land development loans to commercial real estate term loans. See Note 5 of the Notes to Consolidated Financial Statements for more information.

The following table sets forth the Company’s nonperforming lending-related assets:



(Amounts in millions)	September 30, 2012			December 31, 2011			September 30, 2011
Nonaccrual loans	$	700		$	886		$	1,039
Other real estate owned	106			129			170
Nonperforming lending-related assets, excluding FDIC-supported assets	806			1,015			1,209
FDIC-supported nonaccrual loans	20			24			29
FDIC-supported other real estate owned	12			24			33
FDIC-supported nonperforming lending-related assets	32			48			62
Total nonperforming lending-related assets	$	838		$	1,063		$	1,271
Ratio of nonperforming lending-related assets to net loans and leases ¹ and other real estate owned	2.23		%	2.83		%	3.43		%
Accruing loans past due 90 days or more, excluding FDIC-supported loans	$	14		$	19		$	16
FDIC-supported loans past due 90 days or more	61			75			86
Ratio of accruing loans past due 90 days or more to net loans and leases ¹	0.20		%	0.25		%	0.28		%
Nonaccrual loans and accruing loans past due 90 days or more	$	795		$	1,004		$	1,169
Ratio of nonaccrual loans and accruing loans past due 90 days or more to net loans and leases ¹	2.13		%	2.69		%	3.17		%
Accruing loans past due 30 – 89 days, excluding FDIC-supported loans	$	144		$	184		$	174
FDIC-supported loans past due 30 – 89 days	15			25			14
Classified loans, excluding FDIC-supported loans	1,810			2,056			2,362

¹Includes loans held for sale.

Restructured Loans

TDRs are loans that have been modified to accommodate a borrower that is experiencing financial difficulties, and for which the Company has granted a concession that it would not otherwise consider. Commercial loans may be modified to provide the borrower more time to complete the project, to achieve a higher lease-up percentage, to sell the property, or for other reasons. Consumer loan TDRs represent loan modifications in which a concession has been granted to the borrower who is unable to refinance the loan with another lender, or who is experiencing economic hardship. Such consumer loan TDRs may include first-lien residential mortgage loans and home equity loans.

For certain TDRs, we split the loan into two new notes – an “A” note and a “B” note. The A note is structured to comply with our current lending standards at current market rates, and is tailored to suit the customer’s ability to make timely interest and principal payments. The B note includes the granting of the concession to the borrower and varies by situation. We may defer principal and interest payments until the A note has been paid in full. At the time of restructuring,

Table of Contents

ZIONS BANCORPORATION AND SUBSIDIARIES

the A note is identified and classified as a TDR. The B note is charged-off but the obligation is not forgiven to the borrower, and any payments collected on the B notes are accounted for as recoveries. The outstanding balance of loans restructured using the A/B note strategy was approximately $253 million at September 30, 2012.

If the restructured loan performs for at least six months according to the modified terms, and an analysis of the customer’s financial condition indicates that the Company is reasonably assured of repayment of the modified principal and interest, the loan may be returned to accrual status. The borrower’s payment performance prior to and following the restructuring is taken into account in determining whether or not a loan should be returned to accrual status.

ACCRUING AND NONACCRUING TROUBLED DEBT RESTRUCTURED LOANS



(In millions)	September 30, 2012			December 31, 2011			September 30, 2011
Restructured loans – accruing		$	421		$	448		$	430
Restructured loans – nonaccruing		207			296			308
Total		$	628		$	744		$	738

In the periods following the calendar year in which a loan was restructured, a loan may no longer be reported as a TDR if it is on accrual, is in compliance with its modified terms, and yields a market rate (as determined and documented at the time of the modification or restructure). Company policy requires that the removal of TDR status be approved at the same management level that approves the upgrading of a loan’s classification. See Note 5 of the Notes to Consolidated Financial Statements for additional information regarding TDRs.

TROUBLED DEBT RESTRUCTURED LOANS ROLLFORWARD



(In millions)	Three Months Ended September 30, 2012				Nine Months Ended September 30, 2012
(In millions)	Three Months Ended September 30, 2012				Nine Months Ended September 30, 2012
Balance at beginning of period		$	621			$	744
New identified TDRs and principal increases		77				227
Payments and payoffs		(34		)		(178		)
Charge-offs		(10		)		(23		)
No longer reported as TDRs		(1		)		(64		)
Sales and other		(25		)		(78		)
Balance at end of period		$	628			$	628

As of September 30, 2012, TDR balances did not reflect recent changes in regulatory interpretative guidance for banks whose consumer borrowers had not reaffirmed their debt discharged in a Chapter 7 bankruptcy. The guidance states that banks should write down affected loans to their collateral values and reclassify them as TDRs, even if the borrower is current as to principal and interest payments. The Company is working closely with its regulators and expects to adopt this guidance in the fourth quarter of 2012 which, on a one-time basis, may increase the total nonaccruing TDR balance by approximately $30 million and charge-offs by approximately $8 million.

Other Nonperforming Assets

In addition to the lending-related nonperforming assets, the Company had $118 million in carrying value and $515 million in amortized cost of investments in debt securities (primarily bank and insurance company CDOs) that were on nonaccrual status at September 30, 2012, compared to $124 million and $613 million at December 31, 2011 and $121 million and $624 million at September 30, 2011, respectively.

Allowance and Reserve for Credit Losses

In analyzing the adequacy of the allowance for loan losses, we utilize a comprehensive loan grading system to determine the risk potential in the portfolio and also consider the results of independent internal credit reviews. To determine the adequacy of the allowance, the Company’s loan and lease portfolio is broken into segments based on loan type.

Table of Contents

ZIONS BANCORPORATION AND SUBSIDIARIES

The following table shows the changes in the allowance for loan losses and a summary of loan loss experience:



(Amounts in millions)	Nine Months Ended September 30, 2012			Twelve Months Ended December 31, 2011			Nine Months Ended September 30, 2011
Loans and leases outstanding (net of unearned income)	$	37,171		$	37,145		$	36,725
Average loans and leases outstanding (net of unearned income)	$	36,877		$	36,798		$	36,764
Allowance for loan losses:
Balance at beginning of period	$	1,050		$	1,440		$	1,440
Provision charged against earnings	24			75			76
Adjustment for FDIC-supported loans	(13		)	(9		)	(6		)
Charge-offs:
Commercial	(94		)	(241		)	(183		)
Commercial real estate	(72		)	(229		)	(186		)
Consumer	(46		)	(90		)	(70		)
Total	(212		)	(560		)	(439		)
Recoveries:
Commercial	37			55			39
Commercial real estate	29			35			29
Consumer	10			14			10
Total	76			104			78
Net loan and lease charge-offs	(136		)	(456		)	(361		)
Balance at end of period	$	925		$	1,050		$	1,149

Ratio of annualized net charge-offs to average loans and leases	0.49		%	1.24		%	1.31		%
Ratio of allowance for loan losses to net loans and leases, at period end	2.49		%	2.83		%	3.13		%
Ratio of allowance for loan losses to nonperforming loans, at period end	128.63		%	115.40		%	107.59		%
Ratio of allowance for loan losses to nonaccrual loans and accruing loans past due 90 days or more, at period end	116.42		%	104.62		%	98.24		%

The total allowance for loan losses declined during the third quarter and first nine months of 2012 due to the improved credit quality metrics observed in the loan portfolio and somewhat improving economic conditions in some of our markets. The Company decreased the portion of the ALLL related to qualitative and environmental factors to reflect improving credit quality trends and stabilizing economic conditions in certain of our markets.

The reserve for unfunded lending commitments represents a reserve for potential losses associated with off-balance sheet commitments and standby letters of credit. The reserve is separately shown in the Company’s balance sheet and any related increases or decreases in the reserve are shown separately in the statement of income. The reserve increased by $3.4 million and $7.8 million from December 31, 2011 and September 30, 2011 respectively. These increases are primarily due to an increase in unfunded lending commitments. See Note 5 of the Notes to Consolidated Financial Statements for additional information related to the allowance for credit losses.

Interest Rate and Market Risk Management

Interest rate and market risk are managed centrally. Interest rate risk is the potential for reduced net interest income resulting from adverse changes in the level of interest rates. Market risk is the potential for loss arising from adverse changes in the fair value of fixed income securities, equity securities, other earning assets and derivative financial instruments as a result of changes in interest rates or other factors. As a financial institution that engages in transactions involving an array of financial products, the Company is exposed to both interest rate risk and market risk.

The Company’s Board of Directors is responsible for approving the overall policies relating to the management of the

Table of Contents

ZIONS BANCORPORATION AND SUBSIDIARIES

financial risk of the Company, including interest rate and market risk management. The Boards of Directors of the Company’s subsidiary banks are also required to review and approve these policies. In addition, the Board establishes and periodically revises policy limits and reviews limit exceptions reported by management. The Board has established ALCO, consisting of members of management, to which it has delegated the responsibility of managing interest rate and market risk for the Company.

Interest Rate Risk

Interest rate risk is one of the most significant risks to which the Company is regularly exposed. In general, our goal in managing interest rate risk is to have the net interest margin increase slightly in a rising interest rate environment. We refer to this goal as being slightly “asset-sensitive.” This approach is based on our belief that in a rising interest rate environment, the market cost of equity, or implied rate at which future earnings are discounted, would also tend to rise. The asset sensitivity of the Company’s balance sheet changed minimally during the third quarter of 2012. Due to the low level of rates and the natural lower bound of zero for market indices, there is minimal sensitivity to falling rates at the current time. Decreasing market index rates by 200 bps, with a lower bound of 0%, decreases interest income by 2% over a one-year period in the income simulation when compared to a scenario of no change in interest rates. However, if the Federal Reserve continues to implement its announced intent to keep interest rates at historically low levels into 2015, given the Company’s asset sensitivity, it expects its net interest margin to be under continuing modest pressure assuming a stable balance sheet. If interest rates remain stable, this pressure may lead to a reduction in net interest income, unless its impact is offset by sufficient loan growth.

We attempt to minimize the impact of changing interest rates on net interest income primarily through the use of interest rate floors on variable rate loans, interest rate swaps, interest rate futures, and by avoiding large exposures to long-term fixed rate interest-earning assets that have significant negative convexity. Our earning assets are largely tied to the shorter end of the interest rate curve. The prime lending rate and the LIBOR curves are the primary indices used for pricing the Company’s loans. The interest rates paid on deposit accounts are set by individual banks so as to be competitive in each local market.

We monitor interest rate risk through the use of three complementary measurement methods: Market Value of Equity (“MVE”), duration of equity, and income simulation. In the MVE and duration of equity methods, we measure the expected changes in the fair values of equity in response to changes in interest rates. In the income simulation method, we analyze the expected changes in income in response to changes in interest rates.

MVE is calculated as the fair value of all assets, liabilities, and derivative instruments. We report changes in the dollar amount of MVE for parallel shifts in interest rates.

Duration of equity is derived by first calculating the dollar duration of all assets, liabilities and derivative instruments. Dollar duration is determined by calculating the fair value of each instrument assuming interest rates sustain immediate and parallel movements up 10 bps and down 10 bps. This result is multiplied by a factor of 10 to get dollar change per 100 bps rate movement, and the average of these two changes in fair value is the dollar duration. Subtracting the dollar duration of liabilities from the dollar duration of assets and adding the net dollar duration of derivative instruments results in the dollar duration of equity. Duration of equity is computed by dividing the dollar duration of equity by the fair value of equity. A positive value implies that an increase in interest rates decreases the dollar value of equity, whereas a negative value implies that an increase in interest rates increases the dollar value of equity. The Company’s policy is generally to maintain a duration of equity between -3% to +7%. However, exceptions to the policy have been approved by the Company’s Board of Directors. In the current low interest rate environment, the Company is operating with a duration of equity of slightly less than -3% in some planning scenarios. By falling outside the prescribed limits on interest rate risk, we are more asset sensitive than we would ordinarily target. Therefore, if rates were to increase, we would have larger increases in net interest income than if we were within the targeted limits. The risk to income from falling rates is substantially mitigated by the low level of current rates. Due to the asymmetric risk to interest rates (the potential magnitude of a rate increase greatly exceeds the potential magnitude of a rate decline), the Company believes that the interest rate risk is within an acceptable range despite the fact that some duration measures fall outside prescribed limits.

Income simulation is an estimate of the net interest income and total rate sensitive income that would be recognized under different rate environments. Net interest income and total rate sensitive income are measured under several parallel and

Table of Contents

ZIONS BANCORPORATION AND SUBSIDIARIES

nonparallel interest rate environments and deposit repricing assumptions, taking into account an estimate of the possible exercise of options within the portfolio. For income simulation, Company policy requires that interest sensitive income from a static balance sheet be limited to a decline of no more than 10% during one year if rates were to immediately rise or fall in parallel by 200 basis points.

Changes in MVE over a wide range of interest rate moves are used as a complementary measurement to duration. Due to embedded optionality and asymmetric rate risk, changes in MVE can be useful in quantifying risks not apparent for small rate changes. Examples of such risks may include out of the money caps on loans which have little effect for small rate movements but may become important if larger rate shocks were to occur, or substantial prepayment deceleration for low rate mortgages in a higher rate environment.

Each of these measurement methods requires that we assess a number of variables and make various assumptions in managing the Company’s exposure to changes in interest rates. The assessments address loan and security prepayments, early deposit withdrawals, and other embedded options and noncontrollable events. As a result of uncertainty about the maturity and re-pricing characteristics of both deposits and loans, the Company estimates ranges of duration and income simulation under a variety of assumptions and scenarios. The Company’s interest rate risk position changes as the interest rate environment changes and is actively managed to maintain a slightly asset-sensitive position. However, positions at the end of any period may not be reflective of the Company’s position in any subsequent period.

The estimated duration of equity, the MVE, and the income simulation results are highly sensitive to the assumptions used for deposits that do not have specific maturities, such as checking, savings, and money market accounts and also to prepayment assumptions used for loans with prepayment options. Given the uncertainty of these estimates, we view both the duration of equity and the income simulation results as falling within a wide range of possibilities.

As of the dates indicated, the following schedule shows the Company’s estimated duration of equity and percentage change in interest sensitive income, based on a static balance sheet, in the first year after the rate change if interest rates were to sustain an immediate parallel change of 200 basis points. The Company estimates interest rate risk with two sets of deposit re-pricing scenarios. The first scenario assumes that administered-rate deposits (money market, interest-earning checking, and savings) reprice at a faster speed in response to changes in interest rates. The second scenario assumes that those deposits re-price at a slower speed.



	September 30, 2012				June 30, 2012				December 31, 2011
	Fast		Slow		Fast		Slow		Fast		Slow
Duration of equity ¹:
Base case	-0.7	%	-3.9	%	-0.8	%	-4.4	%	-1.0	%	-3.8	%
Increase interest rates by 200 bps	-1.8		-4.4		-2.8		-5.5		-1.5		-3.5
		Deposit repricing response
	Fast		Slow		Fast		Slow		Fast		Slow
Income simulation – change in interest sensitive income ²:
Increase interest rates by 200 bps	9.6	%	12.1	%	9.2	%	12.2	%	7.4	%	10.0	%
Decrease interest rates by 200 bps³	-1.5		-1.7		-1.5		-1.9		-2.0		-2.3

¹The duration of equity is the modified duration reported in percentages.

²Interest income and interest sensitive fees.


³	In the event that a 200 basis point rate parallel decrease cannot be achieved, the applicable rate changes are limited to lesser amounts such that interest rates cannot be less than zero.

Table of Contents

ZIONS BANCORPORATION AND SUBSIDIARIES

The following schedule includes changes in the MVE from -200 bps to +500 bps parallel rate moves for both ‘fast’ and ‘slow’ scenarios.

CHANGES IN MARKET VALUE OF EQUITY As of September 30, 2012

(In millions)
Repricing scenario	-200 bps		-100 bps			+100 bps		+200 bps		+300 bps		+400 bps		+500 bps

Fast	$	240	$	44		$	59	$	139	$	229	$	348	$	445
Slow	21		(106		)	204		441		665		1,038		1,277

During the third quarter of 2012, the Company experienced little change in its interest rate sensitivity measures. The marginal increase in duration of equity can be primarily attributed to an adjustment in how the model captures balloon payments on a subset of the loan portfolio.

Market Risk – Fixed Income

The Company engages in the underwriting and trading of municipal and corporate securities. This trading activity exposes the Company to a risk of loss arising from adverse changes in the prices of these fixed income securities.

At September 30, 2012, the Company had $14 million of trading assets and $22 million of securities sold, not yet purchased, compared with $40 million and $44 million at December 31, 2011 and $50 million and $30 million at September 30, 2011, respectively.

During the third quarter of 2012, the Company exited the business of trading corporate debt securities in preparation for the expected expanded regulation of the Volcker Rule. We do not expect this to have a material impact on the Company’s future earnings.

The Company is exposed to market risk through changes in fair value. The Company is also exposed to market risk for interest rate swaps used to hedge interest rate risk. Changes in the fair value of AFS securities and in interest rate swaps that qualify as cash flow hedges are included in OCI for each financial reporting period. During the third quarter of 2012, the after-tax change in OCI attributable to AFS and HTM securities was $42 million compared to $(82) million recorded in the same prior year period. The change attributable to interest rate swaps for the third quarters of 2012 and 2011 was $(1) million and $(4) million, respectively. If any of the AFS or HTM securities become other-than-temporarily impaired, the credit impairment is charged to operations. See “Investment Securities Portfolio” for additional information on OTTI.

Market Risk – Equity Investments

Through its equity investment activities, the Company owns equity securities that are publicly traded. In addition, the Company owns equity securities in companies that are not publicly traded, that are accounted for under cost, fair value, equity, or full consolidation methods of accounting, depending upon the Company’s ownership position and degree of involvement in influencing the investees’ affairs. In either case, the value of the Company’s investment is subject to fluctuation. Since the fair value of these securities may fall below the Company’s investment costs, the Company is exposed to the possibility of loss. These equity investments are approved, monitored and evaluated by the Company’s Equity Investment Committee.

The Company holds investments in pre-public companies through various venture capital funds. Additionally, Amegy has an alternative investments portfolio. These investments were primarily directed towards equity buyout and mezzanine funds with a key strategy of deriving ancillary commercial banking business from the portfolio companies. Early stage venture capital funds were generally not a part of the strategy since the underlying companies were typically not creditworthy.

Under provisions of the Dodd-Frank Act, the Company is allowed to fund remaining unfunded portions of existing private equity fund commitments, such as those described above, but is not allowed to make any new commitments to invest in private equity funds, except for SBIC funds.

A more comprehensive discussion of the Company’s interest rate and market risk management is contained in the Company’s 2011 Annual Report on Form 10-K.

Table of Contents

ZIONS BANCORPORATION AND SUBSIDIARIES

Liquidity Risk Management

Liquidity risk is the possibility that the Company’s cash flows may not be adequate to fund its ongoing operations and meet its commitments in a timely and cost-effective manner. Since liquidity risk is closely linked to both credit risk and market risk, many of the previously discussed risk control mechanisms also apply to the monitoring and management of liquidity risk. We manage the Company’s liquidity to provide adequate funds to meet its anticipated financial and contractual obligations, including withdrawals by depositors, debt service requirements and lease obligations, as well as to fund customers’ needs for credit. The management of liquidity and funding is performed centrally for both the Parent and its subsidiary banks.

Consolidated cash and interest-bearing deposits held as investments at the Parent and its subsidiaries decreased to $6.6 billion at September 30, 2012 from $9.0 billion at June 30, 2012 and $8.2 billion at December 31, 2011. The decrease during the first nine months of 2012 resulted from (1) the redemption of the $1.4 billion Series D Fixed-Rate Cumulative Perpetual Preferred Stock issued to the U.S. Department of the Treasury under its Troubled Asset Relief Program (“TARP”) Capital Purchase Program (“CPP”), (2) the payment of common and preferred dividends, and (3) the purchase of $1.9 billion of security resell agreements. These decreases were partially offset by an increase in cash due to increased deposits and the issuance of long-term debt (net of repayments).

Parent Company Liquidity

The Parent’s cash requirements consist primarily of debt service, investments in and advances to subsidiaries, operating expenses, income taxes, and dividends to preferred and common shareholders, including the TARP preferred stock until it was redeemed in September 2012. The Parent’s cash needs are usually met through dividends from its subsidiaries, interest and investment income, subsidiaries’ proportionate share of current income taxes, equity contributed through the exercise of stock options, and long-term debt and equity issuances.

Cash and interest-bearing deposits held as investments at the Parent decreased to $583 million at September 30, 2012 from $926 million at June 30, 2012 and $956 million at December 31, 2011. The decrease in cash from December 31, 2011 was primarily a result of the $1.4 billion redemption of the TARP preferred stock, partially offset by dividends received from its subsidiaries and the redemption of subsidiary preferred stock issued to the Parent.

During the first nine months of 2012, the Parent received common dividends totaling $129.1 million and preferred dividends totaling $54.1 million from its subsidiary banks, and common dividends totaling $55.4 million from nonbank subsidiaries. Also, the Parent received cash of $637.1 million from its subsidiary banks as a result of the redemption of preferred stock issued to the Parent. The dividends that our subsidiary banks can pay to the Parent are restricted by current and historical earning levels, retained earnings, and risk-based and other regulatory capital requirements. During the first nine months of 2012, all of the Company’s subsidiary banks recorded a profit. We expect that this profitability will be sustained thus permitting additional payments of dividends by the subsidiaries to the Parent, and/or returns of capital to the Parent during the remainder of 2012 and in 2013.

The Company has held the dividend on its common stock to $0.01 per share per quarter to conserve both capital and cash at the Parent.

General financial market and economic conditions impact the Company’s access to and cost of external financing and continued to gradually improve in the first nine months of 2012. Access to funding markets for the Parent and subsidiary banks is also directly affected by the credit ratings they receive from various rating agencies. The ratings not only influence the costs associated with the borrowings, but can also influence the sources of the borrowings. The debt ratings and outlooks issued by the various rating agencies for the Company did not change during the first nine months of 2012. While Moody’s rates the Company’s senior debt as Ba3 or noninvestment grade, Standard & Poor’s, Fitch, and DBRS all rate the Company’s senior debt at a low investment grade level. In addition, all four rating agencies rate the Company’s subordinated debt as noninvestment grade. Subsequent to the quarter ended September 30, 2012, Moody’s announced that its outlook and ratings for the Company’s senior debt and subordinated debt has been placed on review for possible upgrade. On October 24, 2012, DBRS announced that its debt ratings for the Company are unchanged and stable following the Company’s earnings release for the third quarter of 2012. Also, on October 30, 2012, Fitch announced that its ratings for the Company’s senior and subordinated debt are unchanged, but its outlook for the Company improved from stable to positive.

Table of Contents

ZIONS BANCORPORATION AND SUBSIDIARIES

During the first nine months of 2012, the primary sources of additional cash to the Parent in the capital markets were (1) $578 million issuance of four- to five-year unsecured senior notes; proceeds net of commissions, fees and discounts were $553 million, (2) $96 million issuance of one- to three-year unsecured senior notes and (3) $144 million issuance of Series F 7.9% Fixed-Rate Non-Cumulative Perpetual Preferred Stock. The coupon interest/yield-to-maturity rates for the four- to five-year notes were: $300 million – 4.50%/5.84%, $100 million – 4.50%/4.44%, $158 million – 4.00%/4.69%, and $20 million – 4.00%/3.86%, respectively.

Primary uses of cash in the capital markets during the first nine months of 2012 were (1) $1.4 billion for the redemption of the TARP preferred stock, (2) the redemption of $143 million Series E 11.0% preferred stock, and (3) the repayment of $255 million variable rate senior notes that were guaranteed under the FDIC’s Temporary Liquidity Guarantee Program.

The following table presents the Parent’s balance sheet at September 30, 2012, December 31, 2011, and September 30, 2011.

PARENT ONLY CONDENSED BALANCE SHEETS

(In thousands)	September 30, 2012			December 31, 2011			September 30, 2011
ASSETS
Cash and due from banks	$	2,031		$	11		$	2,010
Interest-bearing deposits	580,994			956,476			389,972
Investment securities:
Held-to-maturity, at adjusted cost (approximate fair value of $17,119, $13,019 and $7,761)	14,350			20,118			15,163
Available-for-sale, at fair value	393,637			382,880			1,039,863
Loans, net of unearned fees of $0, $0 and $0 and allowance for loan losses of $0, $33 and $25	—			1,495			1,503
Other noninterest-bearing investments	51,120			52,903			49,090
Investments in subsidiaries:
Commercial banks and bank holding company	6,722,096			7,070,620			7,080,508
Other operating companies	42,403			45,043			51,651
Nonoperating – ZMFU II, Inc. ¹	42,795			92,751			92,988
Receivables from subsidiaries:
Other operating companies	5,000			190			6,615
Other assets	246,491			285,971			268,411
	$	8,100,917		$	8,908,458		$	8,997,774
LIABILITIES AND SHAREHOLDERS’ EQUITY
Other liabilities	$	75,701		$	104,829		$	102,140
Commercial paper:
Due to affiliates	22,999			45,995			45,991
Due to others	1,199			3,063			3,164
Other short-term borrowings:
Due to affiliates	—			5			108,870
Due to others	4,951			66,883			118,773
Subordinated debt to affiliated trusts	309,278			309,278			309,278
Long-term debt:
Due to affiliates	—			53			51,912
Due to others	1,765,672			1,393,044			1,336,880
Total liabilities	2,179,800			1,923,150			2,077,008
Shareholders’ equity:
Preferred stock	1,123,377			2,377,560			2,354,523
Common stock	4,162,001			4,163,242			4,160,697
Retained earnings	1,170,477			1,036,590			994,380
Accumulated other comprehensive income (loss)	(534,738		)	(592,084		)	(588,834		)
Total shareholders’ equity	5,921,117			6,985,308			6,920,766
	$	8,100,917		$	8,908,458		$	8,997,774

¹ZMFU II, Inc. is a wholly-owned nonoperating subsidiary whose sole purpose is to hold a portfolio of municipal bonds, loans and leases.

Table of Contents

ZIONS BANCORPORATION AND SUBSIDIARIES

During the first nine months of 2012 and 2011, the Parent’s operating expenses included cash payments for interest of approximately $101 million and $104 million, respectively. Additionally, the Parent paid approximately $109 million and $115 million of dividends on preferred stock and common stock, respectively, for the same periods.

Repayments of short-term borrowings by the Parent exceeded new issuances, which resulted in net cash outflows of $87 million during the first nine months of 2012.

At September 30, 2012, maturities of the Company’s long-term senior and subordinated debt ranged from October 2012 to March 2017.

Subsidiary Bank Liquidity

The subsidiary banks’ primary source of funding is their core deposits, consisting of demand, savings and money market deposits, time deposits under $100,000, and foreign deposits. At September 30, 2012, these core deposits, excluding brokered deposits, in aggregate, constituted 96.2% of consolidated deposits, compared with 95.8% of consolidated deposits at June 30, 2012 and 94.9% at September 30, 2011. On a consolidated basis, the Company’s net loan to total deposit ratio is at a historical low of 84.9% as of September 30, 2012, compared to 85.4% as of June 30, 2012 and 88.8% as of September 30, 2011.

Historically, the Company’s subsidiary banks have also obtained brokered deposits to serve as an additional source of liquidity, which is currently not needed. At September 30, 2012, these brokered deposits were $41 million, compared with $127 million at June 30, 2012 and $251 million at September 30, 2011. Brokered deposits are less than 0.1% of total deposits at September 30, 2012.

Total deposits increased by $612 million during the third quarter of 2012 due to an increase of $798 million in noninterest-bearing demand deposits and $179 million in savings and NOW deposits, partly offset by a decrease of $365 million in money market, time, and foreign deposits. For the first nine months of 2012, total deposits increased by $897 million due to an increase of $1,185 million in noninterest-bearing demand deposits and $526 million in savings and NOW deposits, partly offset by a decrease of $814 million in money market, time, and foreign deposits.

On November 9, 2010, the FDIC issued a final rule providing temporary unlimited insurance coverage for noninterest-bearing transaction accounts at all FDIC-insured depository institutions, effective December 31, 2010 through December 31, 2012. The Company and the banking industry may experience a reduction in noninterest-bearing deposits beginning in late 2012 or in 2013 as a result of a decrease in demand for these deposits after the expiration of the temporary unlimited insurance coverage.

The FHLB system has, from time to time, been a significant source of funding and back-up liquidity for each of the Company’s subsidiary banks. Zions Bank, TCBW, and TCBO are members of the FHLB of Seattle. CB&T, NSB, and NBA are members of the FHLB of San Francisco. Vectra is a member of the FHLB of Topeka and Amegy Bank is a member of the FHLB of Dallas. The FHLB allows member banks to borrow against their eligible loans to satisfy liquidity requirements. The subsidiary banks are required to invest in FHLB stock to maintain their borrowing capacity. At September 30, 2012, the amount available for additional FHLB and Federal Reserve borrowings was approximately $13.9 billion. Loans with a carrying value of approximately $20.1 billion at September 30, 2012 and $21.1 billion at December 31, 2011 have been made available for pledging at the Federal Reserve and various Federal Home Loan Banks as collateral for current and potential borrowings. At September 30, 2012 the Company had a de minimus amount of long-term borrowings outstanding with the FHLB – approximately $23 million, which decreased slightly from $24 million at December 31, 2011. At September 30, 2012 and December 31, 2011, the subsidiary banks’ total investment in FHLB stock was approximately $113 million and $116 million, respectively.

The Company’s investment activities can provide or use cash, depending on the asset-liability management posture that is taken. For the first nine months of 2012, investment securities’ activities resulted in a decrease in investment securities holdings and a net increase of cash in the amount of $249 million.

Maturing balances in our subsidiary banks’ loan portfolios also provide additional flexibility in managing cash flows. Lending activity for the third quarter of 2012 resulted in a net cash outflow of $398 million compared to a net cash outflow of $108 million for the third quarter of 2011. For the first nine months of 2012 lending activity resulted in a net cash outflow of $380 million compared to a net cash outflow of $634 for the first nine months of 2011.

Table of Contents

ZIONS BANCORPORATION AND SUBSIDIARIES

A more comprehensive discussion of our liquidity management is contained in the Company’s 2011 Annual Report on Form 10-K.

Operational Risk Management

Operational risk is the potential for unexpected losses attributable to human error, systems failures, fraud, or inadequate internal controls and procedures. In its ongoing efforts to identify and manage operational risk, the Company has a Corporate Risk Management Department whose responsibility is to help management identify and assess key risks and monitor the key internal controls and processes that the Company has in place to mitigate operational risk. We have documented controls and the Control Self Assessment related to financial reporting under Section 404 of the Sarbanes-Oxley Act of 2002 and the Federal Deposit Insurance Corporation Improvement Act of 1991.

To manage and minimize its operating risk, the Company has in place transactional documentation requirements, systems and procedures to monitor transactions and positions, regulatory compliance reviews, and periodic reviews by the Company’s internal audit and credit examination departments. In addition, reconciliation procedures have been established to ensure that data processing systems consistently and accurately capture critical data. Further, we maintain contingency plans and systems for operations support in the event of natural or other disasters. Efforts are continually underway to improve the Company’s oversight of operational risk, including enhancement of risk-control self assessments and of anti-fraud measures reporting to the Enterprise Risk Management Committee and the Board. We also mitigate operational risk through the purchase of insurance, including errors and omissions and professional liability insurance.

CAPITAL MANAGEMENT

We believe that a strong capital position is vital to continued profitability and to promoting depositor and investor confidence.

Note 7 of the Notes to Consolidated Financial Statements provides additional information on the Company’s debt and equity transactions during the first nine months of 2012.

On March 13, 2012, the Federal Reserve notified the Company that it did not object to the capital actions proposed in the Company’s Capital Plan, submitted pursuant to the Federal Reserve’s 2012 Capital Plan and Review (CapPR). The plan included the redemption in its entirety ($1.4 billion) of the Company’s TARP preferred stock in 2012 in two installments without the issuance of any new common or preferred stock. The Capital Plan also included the issuance of $600 million of senior debt.

On March 28, 2012, the Company redeemed $700 million, or 50%, of its TARP preferred stock. On September 26, 2012 the Company redeemed the remaining $700 million. In addition, for the first nine months of 2012, the Company has issued $578 million of senior debt.

Total controlling interest shareholders’ equity decreased by 8.8% from $6,492 million at June 30, 2012 to $5,921 million at September 30, 2012 and decreased by 15.2% from $6,985 million at December 31, 2011. The decrease in total controlling interest shareholders’ equity from December 31, 2011 is primarily due to the redemption of the $1.4 billion TARP preferred stock previously discussed and $109.1 million of dividends paid on preferred and common stock, partially offset by $291.3 million of net income applicable to controlling interest, $85.4 million of convertible subordinated debt converted to preferred stock, and $63.5 million improvement in net unrealized losses on investment securities recorded in accumulated other comprehensive income. The improvement in net unrealized losses on investment securities recorded in the first nine months of 2012 was primarily a result of improvement in the risk spreads on riskier assets, further decline in the number of banks deferring interest payments and a continued increase in the number of banks coming current on their payments.

The Company paid $5.5 million in dividends on common stock during the first nine months of 2012. The dividends paid per share of $0.01 were unchanged from the rate paid since the third quarter of 2009. The Company’s Capital Plan submitted to the Federal Reserve maintains the current common stock dividend of $0.01 per share throughout 2012.

The Company recorded preferred stock dividends of $148.2 million and $125.8 million during the first nine months of 2012 and 2011, respectively. Preferred dividends for the first nine months of 2012 and 2011 include $79.1 million and

Table of Contents

ZIONS BANCORPORATION AND SUBSIDIARIES

$68.6 million, respectively, related to the TARP preferred stock, consisting of cash payments of $34.4 million and $52.5 million in the first nine months of 2012 and 2011, respectively, and accretion of $44.7 million and $16.1 million in the first nine months of 2012 and 2011, respectively, for the difference between the fair value and par amount of the TARP preferred stock when issued.

Conversions of convertible subordinated debt into preferred stock have augmented the Company’s capital position and reduced future refinancing needs. From the original modification in June 2009 through September 30, 2012, $748 million of debt has been extinguished and $873 million of preferred capital has been added. The following schedule shows the effect the conversions had on Tier 1 capital and outstanding convertible subordinated debt between the third quarter of 2011 and the third quarter of 2012.

IMPACT OF CONVERTIBLE SUBORDINATED DEBT



						Three Months Ended
(In millions)	Pro Forma Subsequent to September 30, 2012¹				September 30, 2012				June 30, 2012			March 31, 2012			December 31, 2011				September 30, 2011
Preferred equity
Convertible subordinated debt converted to preferred stock		$	4			$	5		$	50		$	30			$	15			$	17
Beneficial conversion feature reclassified from common to preferred stock		1				1			9			5				2				3
Change in preferred equity		5				6			59			35				17				20
Common equity
Accelerated convertible subordinated debt discount amortization, net of tax		(1		)		(2		)	(13		)	(10		)		(5		)		(6		)
Beneficial conversion feature reclassified from common to preferred stock		(1		)		(1		)	(9		)	(5		)		(2		)		(3		)
Change in common equity		(2		)		(3		)	(22		)	(15		)		(7		)		(9		)
Net impact on Tier 1 capital		$	3			$	3		$	37		$	20			$	10			$	11
Convertible subordinated debt outstanding		$	458			$	462		$	467		$	518			$	547			$	562

¹Reflects the expected conversion of subordinated debt into preferred stock in November 2012 and the associated accelerated convertible subordinated debt amortization and beneficial conversion feature transferred from common stock to preferred stock.

On May 7, 2012, the Company issued $143.75 million of a new series of Tier 1 Capital qualifying perpetual preferred stock at a dividend of 7.9%. The proceeds were used to redeem all outstanding shares of its Series E fixed-rate resettable non-cumulative perpetual preferred stock on June 15, 2012. The Series E securities had an aggregate par amount of $142.5 million and current dividend of 11.0%. The issuance of the new Series F preferred stock and redemption of the Series E preferred stock will reduce preferred stock dividends paid by the Company by approximately $4.3 million per year.

Banking organizations are required under published regulations to maintain adequate levels of capital as measured by several regulatory capital ratios. As of September 30, 2012, the Company’s capital ratios were as follows:

Table of Contents

ZIONS BANCORPORATION AND SUBSIDIARIES

CAPITAL RATIOS



	September 30, 2012		December 31, 2011		September 30, 2011
Tangible common equity ratio	7.17	%	6.77	%	6.90	%
Tangible equity ratio	9.32	%	11.33	%	11.56	%
Average equity to average assets (three months ended)	12.22	%	13.27	%	13.51	%
Risk-based capital ratios:
Common equity Tier 1 capital	9.86	%	9.57	%	9.53	%
Tier 1 leverage	11.05	%	13.40	%	13.48	%
Tier 1 risk-based capital	13.49	%	16.13	%	16.10	%
Total risk-based capital	15.25	%	18.06	%	18.12	%

Return on average common equity (three months ended)	5.21	%	3.84	%	5.58	%
Return on average tangible common equity (three months ended)	7.02	%	5.38	%	7.64	%

At September 30, 2012, regulatory Tier 1 risk-based capital and total risk-based capital were $5,837 million and $6,596 million, compared to $6,444 million and $7,245 million at June 30, 2012 and $6,871 million and $7,733 million at September 30, 2011, respectively.

In June 2012, the FRB, OCC, and FDIC (collectively, the Agencies) each issued Notices of Proposed Rulemaking (“NPRs”) that would revise and replace the Agencies’ current regulatory capital rules to align with the June 2011 Bank for International Settlements regulatory framework, commonly referred to as Basel III. These capital standards meet certain requirements of the Dodd-Frank Act. Requirements included in the proposed NPRs would establish more restrictive capital definitions, higher risk-weightings for certain asset classes, capital buffers, higher minimum capital ratios, and new “prompt corrective action” triggers and restrictions. The revisions include revised methodologies for determining risk-weighted assets for residential mortgages, unused loan commitments, securitization exposures, nonperforming assets, and counterparty credit risk. We are currently evaluating the impact of the proposed NPRs on our regulatory capital ratios. While uncertainty exists in the final form of the U.S. rules implementing the Basel III capital framework, we expect to meet the final requirements adopted by U.S. banking regulators within regulatory timelines.

GAAP to NON-GAAP RECONCILIATIONS

1. Common equity Tier 1 capital

Traditionally, the Federal Reserve and other banking regulators have assessed a bank’s capital adequacy based on Tier 1 capital, the calculation of which is codified in federal banking regulations. Regulators have begun supplementing their assessment of the capital adequacy of a bank based on a variation of Tier 1 capital, known as common equity Tier 1 capital. The common equity Tier 1 capital ratio is the core capital component of the Basel III standards, and we believe that it increasingly is becoming a key ratio considered by regulators, investors, and analysts. There is a difference between this ratio calculated using Basel I definitions of common equity Tier 1 capital and those definitions using Basel III rules when fully phased in (which have not yet been formalized in regulation). The common equity Tier 1 risk-based capital ratios in the Capital Ratios schedule presented previously use the current Basel I definitions for determining the numerator. Because common equity Tier 1 capital is not formally defined by GAAP or codified in the federal banking regulations, this measure is considered to be a non-GAAP financial measure and other entities may calculate them differently than the Company’s disclosed calculations. Since banking regulators, investors and analysts may assess the Company’s capital adequacy using common equity Tier 1 capital, we believe it is useful to provide them the ability to assess the Company’s capital adequacy on this same basis.

Common equity Tier 1 capital is often expressed as a percentage of risk-weighted assets. Under the current risk-based capital framework, a bank’s balance sheet assets and credit equivalent amounts of off-balance sheet items are assigned to one of four broad “Basel I” risk categories for banks, like our banking subsidiaries, that have not adopted the Basel II “Advanced Measurement Approach.” The aggregated dollar amount in each category is then multiplied by the risk weighting assigned to that category. The resulting weighted values from each of the four categories are added together and this sum is the risk-weighted assets total that, as adjusted, comprises the denominator of certain risk-based capital

Table of Contents

ZIONS BANCORPORATION AND SUBSIDIARIES

ratios. Tier 1 capital is then divided by this denominator (risk-weighted assets) to determine the Tier 1 capital ratio. Adjustments are made to Tier 1 capital to arrive at common equity Tier 1 capital. Common equity Tier 1 capital is also divided by the risk-weighted assets to determine the common equity Tier 1 capital ratio. The amounts disclosed as risk-weighted assets are calculated consistent with banking regulatory requirements.

The schedule below provides a reconciliation of controlling interest shareholders’ equity (GAAP) to Tier 1 capital (regulatory) and to common equity Tier 1 capital (non-GAAP) using current U.S. regulatory treatment and not proposed Basel III calculations.

COMMON EQUITY TIER 1 CAPITAL (NON-GAAP)



(Amounts in millions)	September 30, 2012			December 31, 2011			September 30, 2011
Controlling interest shareholders’ equity (GAAP)	$	5,921		$	6,985		$	6,921
Accumulated other comprehensive loss (income)	535			592			589
Non-qualifying goodwill and intangibles	(1,070		)	(1,083		)	(1,088		)
Other regulatory adjustments	3			4			1
Qualifying trust preferred securities	448			448			448
Tier 1 capital (regulatory)	5,837			6,946			6,871
Qualifying trust preferred securities	(448		)	(448		)	(448		)
Preferred stock	(1,123		)	(2,377		)	(2,355		)
Common equity Tier 1 capital (non-GAAP)	$	4,266		$	4,121		$	4,068
Risk-weighted assets (regulatory)	$	43,259		$	43,077		$	42,680
Common equity Tier 1 capital to risk-weighted assets (non-GAAP)	9.86		%	9.57		%	9.53		%

2. Core net interest margin

This Form 10-Q presents a “core net interest margin” which excludes the effects of the (1) periodic discount amortization on convertible subordinated debt; (2) accelerated discount amortization on convertible subordinated debt which has been converted; and (3) additional accretion of interest income on acquired loans based on increased projected cash flows.

The schedule below provides a reconciliation of net interest margin (GAAP) to core net interest margin (non-GAAP).

NET INTEREST MARGIN TO CORE NET INTEREST MARGIN (NON-GAAP)



	Three Months Ended
	September 30, 2012	December 31, 2011	September 30, 2011
Net interest margin as reported (GAAP)	3.63%	3.86%	3.99%
Adjust for the impact on net interest margin of:
Discount amortization on convertible subordinated debt	0.09%	0.09%	0.09%
Accelerated discount amortization on convertible subordinated debt	0.02%	0.05%	0.06%
Additional accretion of interest income on acquired loans	(0.14)%	(0.14)%	(0.17)%
Core net interest margin (non-GAAP)	3.60%	3.86%	3.97%

3. Income before income taxes and subordinated debt conversions

This Form 10-Q presents “income before income taxes and subordinated debt conversions” which excludes the effects of the (1) periodic discount amortization on convertible subordinated debt and (2) accelerated discount amortization on convertible subordinated debt which has been converted.

The first schedule in “Results of Operations” provides a reconciliation of income before income taxes (GAAP) to income before income taxes and subordinated debt conversions (non-GAAP).

Table of Contents

ZIONS BANCORPORATION AND SUBSIDIARIES

4. Return on average tangible common equity

This Form 10-Q presents “return on average tangible common equity” which excludes the amortization of core deposit and other intangibles, net of tax, from net earnings applicable to common shareholders, and average goodwill and core deposit and other intangibles from average common equity.

The following schedule provides a reconciliation of net earnings applicable to common shareholders (GAAP) to net earnings applicable to common shareholders, excluding the effects of amortization of core deposit and other intangibles, net of tax (non-GAAP), and average common equity (GAAP) to average tangible common equity (non-GAAP).

RETURN ON AVERAGE TANGIBLE COMMON EQUITY (NON-GAAP)



	Three Months Ended
(Amounts in thousands)	September 30, 2012			December 31, 2011			September 30, 2011
Net earnings applicable to common shareholders (GAAP)	$	62,322		$	44,420		$	65,165
Amortization of core deposit and other intangibles, net of tax	2,692			3,011			3,030
Net earnings applicable to common shareholders, excluding the effects of amortization of core deposit and other intangibles, net of tax (non-GAAP) (a)	$	65,014		$	47,431		$	68,195

Average common equity (GAAP)	$	4,758,858		$	4,583,748		$	4,633,555
Average goodwill	(1,015,129		)	(1,015,125		)	(1,015,161		)
Average core deposit and other intangibles	(57,345		)	(70,345		)	(75,153		)
Average tangible common equity (non-GAAP) (b)	$	3,686,384		$	3,498,278		$	3,543,241

Number of days in quarter (c)	92			92			92
Number of days in year (d)	366			365			365

Return on average tangible common equity (non-GAAP) (a/b/c*d)	7.02		%	5.38		%	7.64		%

5. Total shareholders’ equity to tangible equity and tangible common equity

This Form 10-Q presents “tangible equity” and “tangible common equity” which excludes goodwill and core deposit and other intangibles for both measures and preferred stock and noncontrolling interests for tangible common equity.

The following schedule provides a reconciliation of total shareholders’ equity (GAAP) to both tangible equity (non-GAAP) and tangible common equity (non-GAAP).

TANGIBLE EQUITY (NON-GAAP) AND TANGIBLE COMMON EQUITY (NON-GAAP)



(Amounts in millions)	September 30, 2012			December 31, 2011			September 30, 2011
Total shareholders’ equity (GAAP)	$	5,918		$	6,983		$	6,919
Goodwill	(1,015		)	(1,015		)	(1,015		)
Core deposit and other intangibles	(55		)	(68		)	(72		)
Tangible equity (non-GAAP) (a)	4,848			5,900			5,832
Preferred stock	(1,123		)	(2,377		)	(2,355		)
Noncontrolling interests	3			2			2
Tangible common equity (non-GAAP) (b)	$	3,728		$	3,525		$	3,479
Total assets (GAAP)	$	53,087		$	53,149		$	51,531
Goodwill	(1,015		)	(1,015		)	(1,015		)
Core deposit and other intangibles	(55		)	(68		)	(72		)
Tangible assets (non-GAAP) (c)	$	52,017		$	52,066		$	50,444
Tangible equity ratio (a/c)	9.32		%	11.33		%	11.56		%
Tangible common equity ratio (b/c)	7.17		%	6.77		%	6.90		%

Table of Contents

ZIONS BANCORPORATION AND SUBSIDIARIES

For items 2, 3, 4, and 5 the identified adjustments to reconcile from the applicable GAAP financial measures to the non-GAAP financial measures are included where applicable in financial results or in the balance sheet presented in accordance with GAAP. We consider these adjustments to be relevant to ongoing operating results and financial position.

We believe that excluding the amounts associated with these adjustments to present the non-GAAP financial measures provides a meaningful base for period-to-period and company-to-company comparisons, which will assist regulators, investors, and analysts in analyzing the operating results or financial position of the Company and in predicting future performance. These non-GAAP financial measures are used by management and the Board of Directors to assess the performance of the Company’s business or its financial position for evaluating bank reporting segment performance, for presentations of the Company’s performance to investors, and for other reasons as may be requested by investors and analysts. We further believe that presenting these non-GAAP financial measures will permit investors and analysts to assess the performance of the Company on the same basis as that applied by management and the Board of Directors.

Non-GAAP financial measures have inherent limitations, are not required to be uniformly applied, and are not audited. Although these non-GAAP financial measures are frequently used by stakeholders to evaluate a company, they have limitations as an analytical tool, and should not be considered in isolation or as a substitute for analysis of results as reported under GAAP.


ITEM 3.	QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

Interest rate and market risks are among the most significant risks regularly undertaken by the Company, and they are closely monitored as previously discussed. A discussion regarding the Company’s management of interest rate and market risk is included in the section entitled “Interest Rate and Market Risk Management” in this Form 10-Q.


ITEM 4.	CONTROLS AND PROCEDURES

The Company’s management, with the participation of the Company’s Chief Executive Officer and Chief Financial Officer, has evaluated the effectiveness of the Company’s disclosure controls and procedures as of September 30, 2012. Based on that evaluation, the Company’s Chief Executive Officer and Chief Financial Officer concluded that the Company’s disclosure controls and procedures were effective as of September 30, 2012. There were no material changes in the Company’s internal control over financial reporting during the first nine months of 2012.


PART II.	OTHER INFORMATION


ITEM 1.	LEGAL PROCEEDINGS

The information contained in Note 10 of the Notes to Consolidated Financial Statements is incorporated by reference herein.


ITEM 1A.	RISK FACTORS

The Company believes there have been no significant changes in risk factors compared to the factors identified in Zions Bancorporation’s 2011 Annual Report on Form 10-K; however, this filing contains updated disclosures related to significant risk factors discussed in “Investment Securities Portfolio,” “Credit Risk Management,” “Market Risk – Fixed Income,” “Liquidity Risk Management,” and “Capital Management.”


ITEM 2.	UNREGISTERED SALES OF EQUITY SECURITIES AND USE OF PROCEEDS

Share Repurchases

The following table summarizes the Company’s share repurchases for the third quarter of 2012:

Table of Contents

ZIONS BANCORPORATION AND SUBSIDIARIES



Period	Total number of shares repurchased ¹		Average price paid per share		Total number of shares purchased as part of publicly announced plans or programs		Approximate dollar value of shares that may yet be purchased under the plan
July		746	$	19.60		—		$	—
August		6,490	19.12			—		—
September		544	19.33			—		—
Third quarter		7,780	19.18			—

¹Represents common shares acquired from employees in connection with the Company’s stock compensation plan. Shares were acquired from employees to pay for their payroll taxes upon the vesting of restricted stock and restricted stock units under the “withholding shares” provision of an employee share-based compensation plan.


ITEM 6.	EXHIBITS

a)Exhibits



Exhibit Number	Description

3.1	Restated Articles of Incorporation of Zions Bancorporation dated November 8, 1993, incorporated by reference to Exhibit 3.1 of Form S-4 filed on November 22, 1993.	*

3.2	Articles of Amendment to the Restated Articles of Incorporation of Zions Bancorporation dated April 30, 1997, incorporated by reference to Exhibit 3.2 of Form 10-Q for the quarter ended March 31, 2008.	*

3.3	Articles of Amendment to the Restated Articles of Incorporation of Zions Bancorporation dated April 24, 1998, incorporated by reference to Exhibit 3.3 of Form 10-Q for the quarter ended March 31, 2009.	*

3.4	Articles of Amendment to Restated Articles of Incorporation of Zions Bancorporation dated April 25, 2001, incorporated by reference to Exhibit 3.6 of Form S-4 filed July 13, 2001.	*

3.5	Articles of Amendment to the Restated Articles of Incorporation of Zions Bancorporation, dated December 5, 2006, incorporated by reference to Exhibit 3.5 of Form 10-K for the year ended December 31, 2011.	*

3.6	Articles of Merger of The Stockmen’s Bancorp, Inc. with and into Zions Bancorporation, effective January 17, 2007, incorporated by reference to Exhibit 3.6 of Form 10-Q for the quarter ended March 31, 2012.	*

3.7	Articles of Amendment to the Restated Articles of Incorporation of Zions Bancorporation, dated July 7, 2008, incorporated by reference to Exhibit 3.1 of Form 8-K filed July 8, 2008.	*

3.8	Articles of Amendment to the Restated Articles of Incorporation of Zions Bancorporation, dated November 12, 2008, incorporated by reference to Exhibit 3.1 of Form 8-K filed November 17, 2008.	*

3.9	Articles of Amendment to the Restated Articles of Incorporation of Zions Bancorporation, dated June 30, 2009, incorporated by reference to Exhibit 3.1 of Form 8-K filed July 2, 2009.	*

3.10	Articles of Amendment to the Restated Articles of Incorporation of Zions Bancorporation dated June 30, 2009, incorporated by reference to Exhibit 3.10 of Form 10-Q for the quarter ended June 30, 2009.	*

3.11	Articles of Amendment to the Restated Articles of Incorporation of Zions Bancorporation dated June 1, 2010, incorporated by reference to Exhibit 3.1 of Form 8-K filed June 3, 2010.	*

3.12	Articles of Amendment to the Restated Articles of Incorporation of Zions Bancorporation dated June 14, 2010, incorporated by reference to Exhibit 3.1 of Form 8-K filed June 15, 2010.	*

3.13	Articles of Amendment to the Restated Articles of Incorporation of Zions Bancorporation with respect to the Series F Fixed-Rate Non-Cumulative Perpetual Preferred Stock, dated May 4, 2012, incorporated by reference to Exhibit 3.1 of Form 8-K filed May 5, 2012.	*

100

Table of Contents

ZIONS BANCORPORATION AND SUBSIDIARIES



Exhibit Number	Description

3.14	Restated Bylaws of Zions Bancorporation dated November 8, 2011, incorporated by reference to Exhibit 3.13 of Form 10-Q for the quarter ended September 30, 2011.	*

10.1	Form of TARP agreement signed by all Named Executive Officers for 2008, 2009, 2010, 2011, and 2012, other than Kenneth E. Peterson.

31.1	Certification by Chief Executive Officer required by Rules 13a-15(f) and 15d-15(f) under the Securities Exchange Act of 1934 (filed herewith).

31.2	Certification by Chief Financial Officer required by Rules 13a-15(f) and 15d-15(f) under the Securities Exchange Act of 1934 (filed herewith).

32	Certification by Chief Executive Officer and Chief Financial Officer required by Sections 13(a) or 15(d), as applicable, of the Securities Exchange Act of 1934 (15 U.S.C. 78m) and 18 U.S.C. Section 1350 (furnished herewith).

101	Interactive data files pursuant to Rule 405 of Regulation S-T: (i) the Consolidated Balance Sheets as of September 30, 2012 and December 31, 2011, (ii) the Consolidated Statements of Income for the three months ended September 30, 2012 and September 30, 2011 and the nine months ended September 30, 2012 and September 30, 2011, (iii) the Consolidated Statements of Comprehensive Income for the three months ended September 30, 2012 and September 30, 2011 and the nine months ended September 30, 2012 and September 30, 2011, (iv) the Consolidated Statements of Changes in Shareholders’ Equity for the nine months ended September 30, 2012 and September 30, 2011, (v) the Consolidated Statements of Cash Flows for the three months ended September 30, 2012 and September 30, 2011 and the nine months ended September 30, 2012 and September 30, 2011, and (v) the Notes to the Consolidated Financial Statements (furnished herewith).

* Incorporated by reference

101

Table of Contents

ZIONS BANCORPORATION AND SUBSIDIARIES

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.

ZIONS BANCORPORATION

/s/ Harris H. Simmons

Harris H. Simmons, Chairman, President

and Chief Executive Officer

/s/ Doyle L. Arnold

Doyle L. Arnold, Vice Chairman and

Chief Financial Officer

Date: November 8, 2012

102