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:

 

June 30, 2007

 

 




Item 1. Schedule of Investments




Eaton Vance Insured Michigan Municipal Bond Fund                                                                   as of June 30, 2007

PORTFOLIO OF INVESTMENTS (Unaudited)

Tax-Exempt Investments — 182.3%

Principal
Amount
(000’s omitted)

 

Security

 

Value

 

Electric Utilities — 5.7%

 

 

 

$

1,250

 

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

 

$

1,287,250

 

 

 

 

 

$

1,287,250

 

Escrowed / Prerefunded — 7.1%

 

 

 

$

1,500

 

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

 

$

1,607,970

 

 

 

 

 

$

1,607,970

 

Hospital — 13.3%

 

 

 

$

400

 

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

 

$

400,624

 

1,000

 

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

 

1,057,750

 

1,500

 

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

 

1,561,380

 

 

 

 

 

$

3,019,754

 

Insured-Electric Utilities — 2.3%

 

 

 

$

500

 

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

 

$

517,355

 

 

 

 

 

$

517,355

 

Insured-Escrowed / Prerefunded — 47.8%

 

 

 

$

750

 

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

 

$

787,252

 

1,250

 

Detroit Sewer Disposal, (FGIC), Prerefunded to 7/1/11, 5.125%, 7/1/31

 

1,304,150

 

1,500

 

Lansing, Building Authority, Prerefunded to 6/1/13, (MBIA), 5.00%, 6/1/29

 

1,541,940

 

1,150

 

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

 

1,169,573

 

1,000

 

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

 

1,041,240

 

3,275

 

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

 

3,437,093

 

1,500

 

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

 

1,586,595

 

 

 

 

 

$

10,867,843

 

Insured-General Obligations — 20.6%

 

 

 

$

200

 

Allen Park Public School District, (FSA), 4.25%, 5/1/29

 

$

186,514

 

325

 

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

 

312,263

 

1,960

 

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

 

743,977

 

1




 

 

 

$

750

 

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

 

$

769,425

 

1,330

 

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

 

788,052

 

1,000

 

Otsego, Public School District, (FSA), 4.25%, 5/1/34

 

919,560

 

1,000

 

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

 

962,070

 

 

 

 

 

$

4,681,861

 

Insured-Hospital — 9.4%

 

 

 

$

500

 

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

 

$

508,805

 

1,590

 

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

 

1,634,600

 

 

 

 

 

$

2,143,405

 

Insured-Lease Revenue / Certificates of Participation — 27.5%

 

 

 

$

1,750

 

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

 

$

876,925

 

2,615

 

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

 

1,244,008

 

3,100

 

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

 

967,882

 

795

 

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

 

830,870

 

2,205

 

Puerto Rico Public Buildings Authority, (CIFG), Prerefunded to 7/1/12, 5.25%, 7/1/36 (1)

 

2,331,480

 

 

 

 

 

$

6,251,165

 

Insured-Public Education — 10.2%

 

 

 

$

1,500

 

Central Michigan University, (AMBAC), 5.05%, 10/1/32 (2)

 

$

1,550,310

 

750

 

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

 

774,720

 

 

 

 

 

$

2,325,030

 

Insured-Special Tax Revenue — 11.3%

 

 

 

$

1,500

 

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

 

$

1,537,125

 

1,000

 

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

 

1,025,270

 

 

 

 

 

$

2,562,395

 

Insured-Utility — 6.9%

 

 

 

$

1,000

 

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

 

$

1,029,770

 

510

 

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

 

525,723

 

 

 

 

 

$

1,555,493

 

Insured-Water Revenue — 18.0%

 

 

 

$

1,600

 

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

 

$

1,626,976

 

2,400

 

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

 

2,453,040

 

 

 

 

 

$

4,080,016

 

2




 

 

 

Private Education — 2.2%

 

 

 

$

500

 

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

 

$

506,615

 

 

 

 

 

$

506,615

 

Total Tax-Exempt Investments — 182.3%
(identified cost $39,959,925)

 

$

41,406,152

 

Other Assets, Less Liabilities — (22.8)%

 

$

(5,183,641

)

Auction Preferred Shares Plus Cumulative Unpaid Dividends — (59.5)%

 

$

(13,505,251

)

Net Assets Applicable to Common Shares — 100.0%

 

$

22,717,260

 

 

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 June 30, 2007, 84.5% 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 22.9% of total investments.

(1)

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

(2)

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

 

A summary of financial instruments at June 30, 2007 is as follows:

Futures Contracts

Expiration
Date

 

Contracts

 

Position

 

Aggregate
Cost

 

Value

 

Net
Unrealized
Depreciation

 

09/07

 

10 U.S. Treasury Bond

 

 

Short

 

 

$

(1,069,340

)

$

(1,077,500

)

 

$

(8,160

)

 

 

3




 

 

Interest Rate Swaps

Counterparty

 

Notional
Amount

 

Annual
Fixed Rate
Paid By
Fund

 

Floating
Rate Paid
To Fund

 

Effective Date/
Termination Date

 

Unrealized
Appreciation
(Depreciation)

 

Citibank, N.A.

 

$

600,000

 

 

3.925

%

 

USD-BMA
Municipal Swap Index

 

August 16, 2007/
August 16, 2027

 

 

$

20,580

 

 

Merrill Lynch Capital Services, Inc.

 

$

900,000

 

 

4.006

%

 

USD-BMA
Municipal Swap Index

 

August 7, 2007/
August 7, 2037

 

 

$

36,719

 

 

Lehman Brothers, Inc.

 

$

900,000

 

 

5.956

%

 

3 month
USD-LIBOR-BBA

 

March 25, 2008/
March 25, 2038

 

 

$

(14,986

)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

$

42,313

 

 

 

The effective date represents the date on which the Fund and the counterparty to the interest rate swap contract begin interest payment accruals.

At June 30, 2007, the Fund had sufficient cash and/or securities to cover commitments under these contracts.

The cost and unrealized appreciation (depreciation) in value of the investments owned at June 30, 2007, as computed on a federal income tax basis, were as follows:

Aggregate cost

 

$

34,182,985

 

Gross unrealized appreciation

 

$

1,506,849

 

Gross unrealized depreciation

 

(63,682

)

Net unrealized appreciation

 

$

1,443,167

 

 

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:

 

August 27, 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:

 

August 27, 2007

By:

 

/s/Barbara E. Campbell

 

 

Barbara E. Campbell

 

 

Treasurer and Principal Financial Officer

Date:

 

August 27, 2007