UNITED STATES
SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM N-Q

QUARTERLY SCHEDULE OF PORTFOLIO HOLDINGS OF REGISTERED
MANAGEMENT INVESTMENT COMPANIES

Investment Company Act File Number

 

811-21224

Eaton Vance Insured Michigan
Municipal Bond Fund

(Exact Name of Registrant as Specified in Charter)

The Eaton Vance Building,
255 State Street, Boston, Massachusetts

 

02109

(Address of Principal Executive Offices)

 

(Zip code)

Alan R. Dynner, Esq.
Eaton Vance Management, 255 State Street, Boston, Massachusetts 02109

(Name and Address of Agent for Services)

Registrant’s Telephone Number, Including Area Code:

 

(617) 482-8260

Date of Fiscal Year End:

 

September 30

Date of Reporting Period:

 

December 31, 2006

 

 




Item 1. Schedule of Investments




Eaton Vance Insured Michigan Municipal Bond Fund                                                        as of December 31, 2006

PORTFOLIO OF INVESTMENTS (Unaudited)

Tax-Exempt Investments — 180.5%

Principal

 

 

 

 

 

Amount

 

 

 

 

 

(000’s omitted)

 

Security

 

Value

 

Electric Utilities — 5.6%

 

 

 

$

1,250

 

Michigan Strategic Fund, (Detroit Edison Pollution Control), 5.45%, 9/1/29

 

$

1,310,662

 

 

 

 

 

$

1,310,662

 

Hospital — 19.9%

 

 

 

$

400

 

Michigan Hospital Finance Authority, (Chelsea Community Hospital), 5.00%, 5/15/30

 

$

410,440

 

1,000

 

Michigan Hospital Finance Authority, (Oakwood Hospital), 5.75%, 4/1/32

 

1,077,870

 

1,500

 

Michigan Hospital Finance Authority, (Sparrow Obligation Group), 5.625%, 11/15/36

 

1,588,200

 

1,500

 

Michigan Hospital Finance Authority, (Trinity Health), 5.375%, 12/1/30

 

1,596,765

 

 

 

 

 

$

4,673,275

 

Insured-Electric Utilities — 2.3%

 

 

 

$

500

 

Michigan Strategic Fund, Resource Recovery, (Detroit Edison Co.), (XLCA), 5.25%, 12/15/32

 

$

527,830

 

 

 

 

 

$

527,830

 

Insured-Escrowed / Prerefunded — 34.8%

 

 

 

$

750

 

Detroit School District, (School Bond Loan Fund), Prerefunded to 5/1/12, (FSA), 5.125%, 5/1/31

 

$

803,378

 

1,150

 

Michigan Hospital Finance Authority, (St. John Health System), Escrowed to Maturity, (AMBAC), 5.00%, 5/15/28

 

1,177,508

 

1,000

 

Michigan Trunk Line, Prerefunded to 11/1/11, (FSA), 5.00%, 11/1/25

 

1,059,570

 

3,275

 

Puerto Rico, (FGIC), Prerefunded to 7/1/12, 5.00%, 7/1/32 (1)(2)

 

3,505,366

 

1,500

 

Reed City Public Schools, Prerefunded to 5/1/14, (FSA), 5.00%, 5/1/29

 

1,625,760

 

 

 

 

 

$

8,171,582

 

Insured-General Obligations — 21.1%

 

 

 

$

325

 

Brandon School District, (FSA), 4.50%, 5/1/35

 

$

324,724

 

1,960

 

Grand Rapids and Kent County, Joint Building Authority, (Devos Place), (MBIA), 0.00%, 12/1/27

 

782,040

 

3,700

 

Grand Rapids and Kent County, Joint Building Authority, (MBIA), 0.00%, 12/1/30

 

1,276,056

 

750

 

Greenville, Public Schools, (MBIA), 5.00%, 5/1/25

 

781,995

 

1,330

 

Okemos, Public School District, (MBIA), 0.00%, 5/1/19

 

798,306

 

1,000

 

Van Buren Township, (Local Development Authority), (XLCA), 4.50%, 10/1/31

 

997,720

 

 

 

 

 

$

4,960,841

 

1




 

 

 

Insured-Hospital — 9.3%

 

 

 

$

500

 

Michigan Hospital Finance Authority, Mid-Michigan Obligation Group, (AMBAC), 5.00%, 4/15/32

 

$

517,870

 

1,590

 

Royal Oak, Hospital Finance Authority Revenue, (William Beaumont Hospital), (MBIA), 5.25%, 11/15/35

 

1,663,935

 

 

 

 

 

$

2,181,805

 

Insured-Lease Revenue / Certificates of Participation — 27.2%

 

 

 

$

1,750

 

Michigan House of Representatives, (AMBAC), 0.00%, 8/15/22

 

$

895,965

 

2,615

 

Michigan House of Representatives, (AMBAC), 0.00%, 8/15/23

 

1,278,526

 

3,100

 

Michigan State Building Authority, (FGIC), 0.00%, 10/15/30

 

983,754

 

2,205

 

Puerto Rico Public Buildings Authority, (CIFG), 5.25%, 7/1/36 (1)(2)

 

2,382,378

 

795

 

Puerto Rico Public Buildings Authority, (CIFG), 5.25%, 7/1/36 (1)(2)

 

848,122

 

 

 

 

 

$

6,388,745

 

Insured-Public Education — 10.1%

 

 

 

$

1,500

 

Central Michigan University, (AMBAC), 5.05%, 10/1/32 (3)

 

$

1,589,970

 

750

 

Lake Superior State University, (AMBAC), 5.125%, 11/15/26

 

788,040

 

 

 

 

 

$

2,378,010

 

Insured-Sewer Revenue — 5.6%

 

 

 

$

1,250

 

Detroit Sewer Disposal, (FGIC), 5.125%, 7/1/31

 

$

1,326,225

 

 

 

 

 

$

1,326,225

 

Insured-Special Tax Revenue — 17.9%

 

 

 

$

1,500

 

Lansing, Building Authority, (MBIA), 5.00%, 6/1/29

 

$

1,581,570

 

1,500

 

Wayne Charter County, (Airport Hotel-Detroit Metropolitan Airport), (MBIA), 5.00%, 12/1/30

 

1,569,900

 

1,000

 

Ypsilanti, Community Utilities Authority, (San Sewer System), (FGIC), 5.00%, 5/1/32

 

1,047,590

 

 

 

 

 

$

4,199,060

 

Insured-Utility — 6.8%

 

 

 

$

1,000

 

Lansing, Board Water Supply, Steam and Electric Utility, (FSA), 5.00%, 7/1/25

 

$

1,057,960

 

510

 

Lansing, Board Water Supply, Steam and Electric Utility, (FSA), 5.00%, 7/1/26

 

538,060

 

 

 

 

 

$

1,596,020

 

Insured-Water Revenue — 17.7%

 

 

 

$

1,600

 

Detroit Water Supply System, (FGIC), 5.00%, 7/1/30

 

$

1,653,696

 

2,400

 

Detroit, Water Supply System, (MBIA), 5.00%, 7/1/34 (1)(2)

 

2,506,224

 

 

 

 

 

$

4,159,920

 

2




 

 

 

Private Education — 2.2%

 

 

 

$

500

 

Michigan Higher Education Facilities Authority, (Hillsdale College), 5.00%, 3/1/35

 

$

517,785

 

 

 

 

 

$

517,785

 

Total Tax-Exempt Investments — 180.5%
(identified cost $39,770,859)

 

$

42,391,760

 

Other Assets, Less Liabilities — (23.0)%

 

$

(5,397,383

)

Auction Preferred Shares Plus Cumulative Unpaid Dividends — (57.5)%

 

$

(13,505,473

)

Net Assets Applicable to Common Shares — 100.0%

 

$

23,488,904

 

 

AMBAC

AMBAC Financial Group, Inc.

CIFG

CDC IXIS Financial Guaranty North America, Inc.

FGIC

Financial Guaranty Insurance Company

FSA

Financial Security Assurance, Inc.

MBIA

Municipal Bond Insurance Association

XLCA

XL Capital Assurance, Inc.

 

The Fund invests primarily in debt securities issued by Michigan municipalities. The ability of the issuers of the debt securities to meet their obligations may be affected by economic developments in a specific industry or municipality. In order to reduce the risk associated with such economic developments, at December 31, 2006, 84.7% of total investments are backed by bond insurance of various financial institutions and financial guaranty assurance agencies. The aggregate percentage insured by an individual financial institution ranged from 3.6% to 25.9% of total investments.

(1)

Security valued at fair value using methods determined in good faith by or at the direction of the Trustees.

(2)

Security represents the underlying municipal obligation of an inverse floating rate obligation held by the Fund.

(3)

Security (or a portion thereof) has been segregated to cover margin requirements on open financial futures contracts.

 

A summary of financial instruments at December 31, 2006 is as follows:

Futures Contracts

Expiration

 

 

 

 

 

Aggregate

 

 

 

Net
Unrealized

 

Date

 

Contracts

 

Position

 

Cost

 

Value

 

Appreciation

 

03/07

 

24 U.S. Treasury Bond

 

 

Short

 

 

$

(2,742,666

)

$

(2,674,500

)

 

$

68,166

 

 

 

At December 31, 2006, the Fund had sufficient cash and/or securities to cover commitments under these contracts.

3




 

 

The cost and unrealized appreciation (depreciation) in value of the investments owned at December 31, 2006, as computed on a federal income tax basis, were as follows:

Aggregate cost

 

$

33,987,487

 

Gross unrealized appreciation

 

$

2,624,273

 

Gross unrealized depreciation

 

 

Net unrealized appreciation

 

$

2,624,273

 

 

At December 31, 2006, the Fund had entered into an interest rate swap agreement with Citibank N.A. whereby the Fund makes bi-annual payments at a fixed rate equal to 3.925% on the notional amount of $600,000. In exchange, the Fund receives bi-annual payments at a rate equal to the USD-BMA Municipal Swap Index on the same notional amount. The effective date of the interest rate swap is August 16, 2007. The value of the contract, which terminates August 16, 2027, is recorded as a receivable for open swap contracts of $1,047 at December 31, 2006.

At December 31, 2006, the Fund had entered into an interest rate swap agreement with Merrill Lynch Capital Services, Inc. whereby the Fund makes bi-annual payments at a fixed rate equal to 4.006% on the notional amount of $900,000. In exchange, the Fund receives bi-annual payments at a rate equal to the USD-BMA Municipal Swap Index on the same notional amount. The effective date of the interest rate swap is August 7, 2007. The value of the contract, which terminates on August 7, 2037, is recorded as a receivable for open swap contracts of $3,193 at December 31, 2006.

4




Item 2. Controls and Procedures

(a) It is the conclusion of the registrant’s principal executive officer and principal financial officer that the effectiveness of the registrant’s current disclosure controls and procedures (such disclosure controls and procedures having been evaluated within 90 days of the date of this filing) provide reasonable assurance that the information required to be disclosed by the registrant on this Form N-Q has been recorded, processed, summarized and reported within the time period specified in the Commission’s rules and forms and that the information required to be disclosed by the registrant on this Form N-Q has been accumulated and communicated to the registrant’s principal executive officer and principal financial officer in order to allow timely decisions regarding required disclosure.

(b) There have been no changes in the registrant’s internal controls over financial reporting during the fiscal quarter for which the report is being filed that have materially affected, or are reasonably likely to materially affect the registrant’s internal control over financial reporting.




Signatures

Pursuant to the requirements of the Securities Exchange Act of 1934 and the Investment Company Act of 1940, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

Eaton Vance Insured Michigan Municipal Bond Fund

By:

 

/s/ Cynthia J. Clemson

 

 

Cynthia J. Clemson

 

 

President and Principal Executive Officer

Date:

 

February 26, 2007

 

Pursuant to the requirements of the Securities Exchange Act of 1934 and the Investment Company Act of 1940, this report has been signed below by the following persons on behalf of the registrant and in the capacities and on the dates indicated.

By:

 

/s/ Cynthia J. Clemson

 

 

Cynthia J. Clemson

 

 

President and Principal Executive Officer

Date:

 

February 26, 2007

By:

 

/s/ Barbara E. Campbell

 

 

Barbara E. Campbell

 

 

Treasurer and Principal Financial Officer

Date:

 

February 26, 2007