MFS INVESTMENT GRADE MUNICIPAL TRUST N-Q

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 811-5785

MFS INVESTMENT GRADE MUNICIPAL TRUST

(Exact name of registrant as specified in charter)

500 Boylston Street, Boston, Massachusetts 02116

(Address of principal executive offices) (Zip code)

Susan S. Newton

Massachusetts Financial Services Company

500 Boylston Street

Boston, Massachusetts 02116

(Name and address of agents for service)

Registrant’s telephone number, including area code: (617) 954-5000

Date of fiscal year end: November 30

Date of reporting period: February 28, 2010


ITEM 1. SCHEDULE OF INVESTMENTS.


LOGO


MFS Investment Grade Municipal Trust

PORTFOLIO OF INVESTMENTS (Unaudited) 2/28/10

 

Issuer

   Shares/Par    Value ($)

Municipal Bonds – 149.1%

     

Airport & Port Revenue – 0.4%

     

Maryland Economic Development Corp. Rev. (Terminal Project), “B”, 5.75%, 2035

   $ 150,000    $ 152,787

New York, NY, City Industrial Development Authority Rev. (Terminal One Group Assn.), 5.5%, 2021

     250,000      254,843
         
      $ 407,630
         

General Obligations - General Purpose – 4.4%

     

Chicago, IL (Emergency Telecommunications Systems), FGIC, 5.5%, 2023

   $ 1,000,000    $ 1,169,060

Chicago, IL, “A”, AMBAC, 6.25%, 2014

     1,480,000      1,733,894

Highlands Ranch, CO, Metropolitan District, AGM, 6.5%, 2011

     650,000      700,174

Highlands Ranch, CO, Metropolitan District, ETM, AGM, 6.5%, 2011 (c)

     725,000      782,036

Luzerne County, PA, AGM, 6.75%, 2023

     370,000      399,948

State of California, 5.75%, 2019

     70,000      71,083
         
      $ 4,856,195
         

General Obligations - Schools – 6.6%

     

Beverly Hills, CA, Unified School District, Capital Appreciation (Election of 2008), 0%, 2031

   $ 130,000    $ 40,262

Beverly Hills, CA, Unified School District, Capital Appreciation (Election of 2008), 0%, 2032

     235,000      67,861

Beverly Hills, CA, Unified School District, Capital Appreciation (Election of 2008), 0%, 2033

     470,000      127,238

Frenship, TX, Independent School District, AGM, 5%, 2033

     1,000,000      1,027,730

Los Angeles, CA, Unified School District, “D”, 5%, 2034

     140,000      141,656

Modesto, CA, High School District (Stanislaus County), “A”, FGIC, 0%, 2019

     1,350,000      844,290

Pomona, CA, Unified School District, “A”, NATL, 6.45%, 2022

     1,000,000      1,155,810

San Lorenzo, CA, Unified School District, Alameda County, Election 2004, “B”, FGIC, 4.75%, 2037

     640,000      627,469

St. Johns, MI, Public Schools, FGIC, 5.1%, 2025

     1,000,000      1,157,030

West Contra Costa, CA, Unified School District, “B”, NATL, 6%, 2024

     250,000      267,523

Will County, IL, School District (Channahon), AMBAC, 8.5%, 2015

     1,400,000      1,822,366
         
      $ 7,279,235
         

Healthcare Revenue - Hospitals – 27.4%

     

Allegheny County, PA, Hospital Development Authority Rev. (West Penn Allegheny Health), “A”, 5.375%, 2040

   $ 405,000    $ 303,705

Birmingham, AL, Baptist Medical Center, Special Care Facilities Rev. (Baptist Health Systems, Inc.), “A”, 5%, 2030

     485,000      411,595

Brunswick, GA, Hospital Authority Rev. (Glynn-Brunswick Memorial Hospital), 5.625%, 2034

     165,000      169,607

California Health Facilities Financing Authority Rev. (Catholic Healthcare West), “I”, 4.95%, 2026 (b)

     200,000      214,032

California Health Facilities Financing Authority Rev. (St. Joseph Health System), “A”, 5.75%, 2039

     195,000      202,831

California Statewide Communities Development Authority Rev. (Children’s Hospital), 5%, 2047

     575,000      491,119

California Statewide Communities Development Authority Rev. (Enloe Medical Center), CHCLI, 5.75%, 2038

     360,000      353,070

California Statewide Communities Development Authority Rev. (St. Joseph Health System), FGIC, 5.75%, 2047

     255,000      262,107

Cullman County, AL, Health Care Authority (Cullman Regional Medical Center), “A”, 6.75%, 2029

     355,000      362,349

District of Columbia Hospital Rev. (Children’s Hospital Obligated Group), AGM, 5.25%, 2045

     265,000      262,875

Harris County, TX, Health Facilities Development Corp., Hospital Rev. (Memorial Hermann Healthcare Systems), “B”, 7%, 2027

     205,000      230,182

Harris County, TX, Health Facilities Development Corp., Hospital Rev. (Memorial Hermann Healthcare Systems), “B”, 7.25%, 2035

     250,000      282,243

Health Care Authority for Baptist Health, AL, “D”, 5%, 2021

     850,000      799,519

 

1


MFS Investment Grade Municipal Trust

PORTFOLIO OF INVESTMENTS (Unaudited) 2/28/10 - continued

 

Issuer

   Shares/Par    Value ($)

Municipal Bonds – continued

     

Healthcare Revenue - Hospitals – continued

     

Illinois Finance Authority Rev. (Children’s Memorial Hospital), “A”, ASSD GTY, 5.25%, 2047

   $ 540,000    $ 517,828

Illinois Finance Authority Rev. (Edward Hospital), “A”, AMBAC, 5.5%, 2040

     470,000      466,564

Illinois Finance Authority Rev. (KishHealth Systems Obligated Group), 5.75%, 2028

     380,000      388,231

Illinois Finance Authority Rev. (Provena Health), “A”, 7.75%, 2034

     400,000      456,744

Illinois Finance Authority Rev. (Resurrection Health), 6.125%, 2025

     460,000      466,242

Illinois Finance Authority Rev. (Silver Cross Hospital & Medical Centers), 6.875%, 2038

     395,000      409,548

Indiana Health & Educational Facilities Finance Authority, Hospital Rev. (Clarian Health), “A”, 5%, 2039

     390,000      354,923

Indiana Health & Educational Facilities Finance Authority, Hospital Rev. (Community Foundation of Northwest Indiana), 5.5%, 2037

     795,000      759,638

Indiana Health & Educational Financing Authority Rev. (Community Foundation of Northwest Indiana ), “A”, 6%, 2034

     150,000      152,486

Johnson City, TN, Health & Educational Facilities Board Hospital Rev. (Mountain States Health), “A”, 5.5%, 2036

     845,000      824,281

Kentucky Economic Development Finance Authority, Hospital Facilities Rev. (Baptist Healthcare System), “A”, 5.375%, 2024

     255,000      274,457

Kentucky Economic Development Finance Authority, Hospital Facilities Rev. (Baptist Healthcare System), “A”, 5.625%, 2027

     85,000      91,412

Kentucky Economic Development Finance Authority, Hospital Facilities Rev. (Baptist Healthcare System), “A”, 6.375%, 2040

     440,000      436,735

Lake County, OH, Hospital Facilities Rev. (Lake Hospital), “C”, 6%, 2043

     265,000      263,484

Louisiana Public Facilities Authority Hospital Rev. (Lake Charles Memorial Hospital), 6.375%, 2034

     380,000      331,778

Louisville & Jefferson County, KY, Metropolitan Government Healthcare Systems Rev. (Norton Healthcare, Inc.), 5.25%, 2036

     385,000      371,098

Lufkin, TX, Health Facilities Development Corp. Rev. (Memorial Health System), 5.5%, 2032

     45,000      41,962

Lufkin, TX, Health Facilities Development Corp. Rev. (Memorial Health System), 5.5%, 2037

     45,000      40,039

Maryland Health & Higher Educational Facilities Authority Rev. (Anne Arundel Health System), “A”, 6.75%, 2039

     175,000      199,554

Maryland Health & Higher Educational Facilities Authority Rev. (Mercy Medical Center), “A”, 5.5%, 2042

     300,000      291,159

Maryland Health & Higher Educational Facilities Authority Rev. (Washington County Hospital), 6%, 2043

     95,000      94,585

Massachusetts Health & Educational Facilities Authority Rev. (Boston Medical Center), 5.25%, 2038

     110,000      97,148

Massachusetts Health & Educational Facilities Authority Rev. (Milford-Whitinsville Regional), “C”, 5.75%, 2013

     355,000      356,090

Massachusetts Health & Educational Facilities Authority Rev. (Quincy Medical Center), “A”, 6.5%, 2038

     165,000      146,857

Massachusetts Health & Educational Facilities Authority Rev. (South Shore Hospital), “F”, 5.75%, 2029

     370,000      370,370

New Hampshire Business Finance Authority Rev. (Elliot Hospital Obligated Group), “A”, 6%, 2027

     445,000      451,119

New Hampshire Health & Education Facilities Authority Rev. (Catholic Medical Center), “A”, 6.125%, 2012 (c)

     440,000      497,803

New Hampshire Health & Education Facilities Authority Rev. (Catholic Medical Center), “A”, 6.125%, 2032

     60,000      59,885

New Hampshire Health & Education Facilities Authority Rev. (Memorial Hospital at Conway), 5.25%, 2036

     300,000      258,075

New Jersey Health Care Facilities, Financing Authority Rev. (St. Peter’s University Hospital), 5.75%, 2037

     415,000      414,394

New York Dormitory Authority Rev. (North Shore Long Island Jewish Group), 5.5%, 2013 (c)

     100,000      114,506

 

2


MFS Investment Grade Municipal Trust

PORTFOLIO OF INVESTMENTS (Unaudited) 2/28/10 - continued

 

Issuer

   Shares/Par    Value ($)

Municipal Bonds – continued

     

Healthcare Revenue - Hospitals – continued

     

New York Dormitory Authority Rev., Non-State Supported Debt (Bronx-Lebanon Hospital Center), LOC, 6.5%, 2030

   $ 165,000    $ 182,929

New York Dormitory Authority Rev., Non-State Supported Debt (Bronx-Lebanon Hospital Center), LOC, 6.25%, 2035

     100,000      108,853

New York Dormitory Authority Rev., Non-State Supported Debt (Mt. Sinai NYU Health), 5.5%, 2026

     200,000      200,384

Northampton County, PA, General Purpose Authority Hospital Rev. (St. Luke’s Hospital), “A”, 5.5%, 2035

     100,000      99,050

Northampton County, PA, General Purpose Authority Hospital Rev. (St. Luke’s Hospital), “A”, 5.5%, 2040

     115,000      112,994

Orange County, FL, Health Facilities Authority Hospital Rev. (Orlando Regional Healthcare), 5.75%, 2012 (c)

     150,000      169,895

Orange County, FL, Health Facilities Authority Hospital Rev. (Orlando Regional Healthcare), “C”, ETM, NATL, 6.25%, 2013 (c)

     1,740,000      2,020,227

Palomar Pomerado Health Care District, CA, COP, 6.75%, 2039

     340,000      349,918

Philadelphia, PA, Hospitals & Higher Education Facilities Authority Rev. (Temple University Health System), “A”, 6.625%, 2023

     335,000      335,030

Philadelphia, PA, Hospitals & Higher Education Facilities Authority Rev. (Temple University Health System), “A”, 5.5%, 2030

     395,000      350,341

Rhode Island Health & Educational Building Corp. Rev., Hospital Financing (Lifespan Obligated Group), “A”, ASSD GTY, 7%, 2039

     855,000      959,002

Rhode Island Health & Educational Building Corp., Hospital Financing (Lifespan Obligated Group), 6.375%, 2012 (c)

     435,000      481,784

Richmond, IN, Hospital Authority Rev. (Reid Hospital & Health Center Services), “A”, 6.625%, 2039

     525,000      562,028

Royal Oak, MI, Hospital Finance Authority Rev. (William Beaumont Hospital), 8.25%, 2039

     230,000      272,980

Scioto County, OH, Hospital Facilities Rev. (Southern Ohio Medical Center), 5.75%, 2038

     555,000      563,109

Skagit County, WA, Public Hospital District No. 001 Rev. (Skagit Valley Hospital), 5.75%, 2032

     535,000      534,947

South Carolina Jobs & Economic Development Authority (Bon Secours - Venice Healthcare Corp.), 5.5%, 2012 (c)

     110,000      123,152

South Carolina Jobs & Economic Development Authority (Bon Secours - Venice Healthcare Corp.), 5.5%, 2023

     390,000      393,565

South Lake County, FL, Hospital District Rev. (South Lake Hospital), “A”, 6%, 2029

     105,000      106,682

South Lake County, FL, Hospital District Rev. (South Lake Hospital), “A”, 6.25%, 2039

     155,000      157,564

Southwestern, IL, Development Authority Rev. (Anderson Hospital), 5.375%, 2015

     380,000      380,851

Southwestern, IL, Development Authority Rev. (Anderson Hospital), 5.125%, 2036

     1,000,000      877,480

St. Paul, MN, Housing & Redevelopment Authority Healthcare Facilities Rev. (Healthpartners Obligated Group), 5.25%, 2023

     325,000      321,016

St. Paul, MN, Housing & Redevelopment Authority Healthcare Facilities Rev. (Healthpartners Obligated Group), 5.25%, 2036

     615,000      573,580

Sullivan County, TN, Health, Educational & Housing Facilities Board Hospital Rev. (Wellmont Health Systems Project), “C”, 5.25%, 2026

     1,365,000      1,292,901

Sullivan County, TN, Health, Educational & Housing Facilities Board Hospital Rev. (Wellmont Health Systems Project), “C”, 5.25%, 2036

     135,000      120,502

Sumner County, TN, Health, Educational & Housing Facilities Board Rev. (Sumner Regional Health), “A”, 5.5%, 2046

     1,000,000      451,150

Tarrant County, TX, Cultural Education Facilities Finance Corp. (Scott & White Memorial Hospital), “A”, 5.5%, 2031

     85,000      89,695

Tyler, TX, Health Facilities Development Corp. (East Texas Medical Center), “A”, 5.25%, 2032

     265,000      243,291

Tyler, TX, Health Facilities Development Corp. (East Texas Medical Center), “A”, 5.375%, 2037

     220,000      201,254

Washington Health Care Facilities Authority Rev. (Highline Medical Center), FHA, 6.25%, 2036

     700,000      757,449

 

3


MFS Investment Grade Municipal Trust

PORTFOLIO OF INVESTMENTS (Unaudited) 2/28/10 - continued

 

Issuer

   Shares/Par    Value ($)

Municipal Bonds – continued

     

Healthcare Revenue - Hospitals – continued

     

Washington Health Care Facilities Authority Rev. (Virginia Mason Medical Center), “A”, 6.25%, 2042

   $ 570,000    $ 581,178

West Virginia Hospital Finance Authority, Hospital Rev. (Thomas Health System), 6.5%, 2038

     285,000      264,175

Wisconsin Health & Educational Facilities Authority Rev. (Aurora Health Care, Inc.), 6.4%, 2033

     175,000      178,490

Wisconsin Health & Educational Facilities Authority Rev. (Fort Healthcare, Inc. Project), 5.375%, 2018

     385,000      390,479

Wisconsin Health & Educational Facilities Authority Rev. (ProHealth Care, Inc. Obligated Group), 6.625%, 2032

     195,000      203,600

Wisconsin Health & Educational Facilities Authority Rev. (ProHealth Care, Inc. Obligated Group), 6.625%, 2039

     100,000      107,718

Wisconsin Health & Educational Facilities Authority Rev. (Wheaton Franciscan Services), 5.25%, 2034

     695,000      631,880
         
      $ 30,095,352
         

Healthcare Revenue - Long Term Care – 7.6%

     

ABAG Finance Authority for Non-Profit Corps. (Casa de las Campanas), 6%, 2037

   $ 70,000    $ 69,906

Abilene, TX, Health Facilities Development Corp., Retirement Facilities Rev. (Sears Methodist Retirement), “A”, 7%, 2033

     500,000      434,380

Bucks County, PA, Industrial Development Authority Retirement Community Rev. (Ann’s Choice, Inc.), “A”, 6.125%, 2025

     500,000      466,515

Capital Projects Finance Authority, FL (Glenridge on Palmer Ranch), “A”, 8%, 2012 (c)

     500,000      584,665

Chartiers Valley, PA, Industrial & Commercial Development Authority Rev. (Friendship Village South), “A”, 5.25%, 2013

     500,000      516,200

Chester County, PA, Industrial Development Authority Rev. (RHA Nursing Home), 8.5%, 2032

     715,000      637,229

Cumberland County, PA, Municipal Authority Rev. (Diakon Lutheran Social Ministries), 6.125%, 2029

     570,000      562,117

Fulton County, GA, Residential Care Facilities, Elderly Authority Rev. (Canterbury Court), “A”, 6.125%, 2034

     250,000      219,265

Fulton County, GA, Residential Care Facilities, Elderly Authority Rev. (Lenbrook Square Foundation, Inc.), “A”, 5%, 2029

     270,000      192,818

Hamden, CT, Facility Rev. (Whitney Center Project), “A”, 7.625%, 2030

     35,000      35,954

Hamden, CT, Facility Rev. (Whitney Center Project), “A”, 7.75%, 2043

     205,000      209,690

Hawaii Department of Budget & Finance, Special Purpose Rev. (15 Craigside Project), “A”, 9%, 2044

     115,000      125,886

Illinois Finance Authority Rev. (Hoosier Care, Inc.), “A”, 7.125%, 2034

     425,000      359,984

Illinois Finance Authority Rev. (Smith Village), “A”, 6.25%, 2035

     500,000      401,470

Illinois Health Facilities Authority Rev. (Lutheran Senior Ministries, Inc.), 7.375%, 2011 (c)

     250,000      276,893

Illinois Health Facilities Authority Rev. (Smith Crossing), “A”, 7%, 2032

     250,000      225,658

La Verne, CA, COP (Brethren Hillcrest Homes), “B”, 6.625%, 2025

     350,000      331,737

Massachusetts Development Finance Agency Rev. (Loomis Communities, Inc.), “A”, 5.625%, 2015

     175,000      170,307

Montgomery County, PA, Industrial Development Authority Rev. (Whitemarsh Continuing Care), 6.125%, 2028

     200,000      159,786

Montgomery County, PA, Industrial Development Authority Rev. (Whitemarsh Continuing Care), 6.25%, 2035

     300,000      227,565

New Jersey Economic Development Authority Rev. (Lions Gate), “A”, 5.75%, 2025

     310,000      269,917

New Jersey Economic Development Authority Rev. (Lions Gate), “A”, 5.875%, 2037

     100,000      82,314

Savannah, GA, Economic Development Authority, First Mortgage (Marshes of Skidway), “A”, 7.4%, 2024

     250,000      241,795

Shelby County, TN, Health, Educational & Housing Facilities Board Rev. (Germantown Village), “A”, 7.25%, 2034

     150,000      143,837

South Carolina Jobs & Economic Development Authority, Health Facilities Rev. (Wesley Commons), 5.3%, 2036

     250,000      191,918

 

4


MFS Investment Grade Municipal Trust

PORTFOLIO OF INVESTMENTS (Unaudited) 2/28/10 - continued

 

Issuer

   Shares/Par    Value ($)

Municipal Bonds – continued

     

Healthcare Revenue - Long Term Care – continued

     

Suffolk County, NY, Industrial Development Agency, Civic Facilities Rev. (Gurwin Jewish Phase II), 6.7%, 2039

   $ 495,000    $ 411,662

Tarrant County, TX, Cultural Education Facilities Finance Corp. Retirement Facility (Air Force Village), 6.125%, 2029

     40,000      39,478

Tarrant County, TX, Cultural Education Facilities Finance Corp. Retirement Facility (Air Force Village), 6.375%, 2044

     315,000      304,936

Tarrant County, TX, Cultural Education Facilities Finance Corp. Retirement Facility (Stayton Museum Way), 8.25%, 2044

     500,000      486,010
         
      $ 8,379,892
         

Healthcare Revenue - Other – 0.3%

     

Massachusetts Health & Educational Facilities Authority Rev. (Civic Investments, Inc.), “A”, 9%, 2012 (c)

   $ 250,000    $ 294,383
         

Human Services – 0.2%

     

Massachusetts Development Finance Agency Rev. (Evergreen Center, Inc.), 5%, 2024

   $ 250,000    $ 228,468
         

Industrial Revenue - Airlines – 0.4%

     

Clayton County, GA, Development Authority Special Facilities Rev. (Delta Airlines, Inc.), “A”, 8.75%, 2029

   $ 125,000    $ 128,978

Clayton County, GA, Development Authority Special Facilities Rev. (Delta Airlines, Inc.), “B”, 9%, 2035

     95,000      96,237

Dallas Fort Worth, TX, International Airport Facility Improvement Corp. (American Airlines, Inc.), 5.5%, 2030

     105,000      68,642

New York, NY, City Industrial Development Agencies Rev. (American Airlines, Inc.), 7.5%, 2016

     115,000      114,425
         
      $ 408,282
         

Industrial Revenue - Chemicals – 1.1%

     

Brazos River, TX, Harbor Navigation District (Dow Chemical Co.), “B-2”, 4.95%, 2033

   $ 590,000    $ 565,609

Michigan Strategic Fund Ltd. Obligation Rev. (Dow Chemical Co.), 6.25%, 2014

     525,000      586,724
         
      $ 1,152,333
         

Industrial Revenue - Environmental Services – 1.3%

     

California Pollution Control Financing Authority, Solid Waste Disposal Rev. (Republic Services, Inc.), “B”, 5.25%, 2023 (b)

   $ 135,000    $ 138,179

California Pollution Control Financing Authority, Solid Waste Disposal Rev. (Waste Management, Inc.), “A”, 5%, 2022

     305,000      299,376

California Pollution Control Financing Authority, Solid Waste Disposal Rev. (Waste Management, Inc.), “C”, 5.125%, 2023

     335,000      330,287

Mission, TX, Economic Development Corp., Solid Waste Disposal Rev. (Allied Waste N.A., Inc.), “A”, 5.2%, 2018

     650,000      652,379
         
      $ 1,420,221
         

Industrial Revenue - Other – 2.5%

     

California Statewide Communities, Development Authority Facilities (Microgy Holdings Project), 9%, 2038 (a)

   $ 26,773    $ 5,261

Gulf Coast, TX, Industrial Development Authority Rev. (CITGO Petroleum Corp.), 8%, 2028

     250,000      250,068

Houston, TX, Industrial Development Corp. (United Parcel Service, Inc.), 6%, 2023

     315,000      282,703

Indianapolis, IN, Airport Authority Rev., Special Facilities (FedEx Corp.), 5.1%, 2017

     250,000      257,423

Michigan Strategic Fund Ltd. Obligation Rev. (Michigan Sugar Co., Carrollton), 6.55%, 2025

     250,000      212,003

New Jersey Economic Development Authority Rev. (GMT Realty LLC), “B”, 6.875%, 2037

     500,000      407,020

Pennsylvania Economic Development Financing Authority, Finance Authority Facilities Rev. (Amtrak), “A”, 6.25%, 2031

     180,000      182,736

Toledo Lucas County, OH, Authority Port Rev., Facilities (CSX, Inc. Project), 6.45%, 2021

     1,000,000      1,118,370
         
      $ 2,715,584
         

 

5


MFS Investment Grade Municipal Trust

PORTFOLIO OF INVESTMENTS (Unaudited) 2/28/10 - continued

 

Issuer

   Shares/Par    Value ($)

Municipal Bonds – continued

     

Industrial Revenue - Paper – 1.0%

     

Camden, AL, Industrial Development Board Exempt Facilities Rev., “B” (Weyerhaeuser Co.), 6.375%, 2013 (c)

   $ 275,000    $ 317,647

Escambia County, FL, Environmental Improvement Rev. (International Paper Co.), “A”, 5.75%, 2027

     250,000      232,205

Rockdale County, GA, Development Authority Project Rev. (Visy Paper Project), “A”, 6.125%, 2034

     320,000      260,867

Sabine River Authority Rev., Louisiana Water Facilities (International Paper Co.), 6.2%, 2025

     310,000      315,444
         
      $ 1,126,163
         

Miscellaneous Revenue - Entertainment & Tourism – 1.2%

     

Brooklyn, NY, Arena Local Development Corp. (Barclays Center Project), 6%, 2030

   $ 200,000    $ 206,636

Brooklyn, NY, Arena Local Development Corp. (Barclays Center Project), 6.25%, 2040

     130,000      133,982

Brooklyn, NY, Arena Local Development Corp. (Barclays Center Project), 6.375%, 2043

     90,000      92,579

Cabazon Band of Mission Indians, CA, 8.375%, 2015 (a)(z)

     100,000      66,615

Cabazon Band of Mission Indians, CA, 8.75%, 2019 (a)(z)

     360,000      237,010

Cow Creek Band of Umpqua Tribe of Indians, OR, “C”, 5.625%, 2026 (n)

     350,000      254,951

New York Liberty Development Corp. Rev. (National Sports Museum), “A”, 6.125%, 2019 (d)

     220,000      660

New York, NY, City Industrial Development Agency Rev. (Queens Baseball Stadium), ASSD GTY, 6.125%, 2029

     65,000      71,971

New York, NY, City Industrial Development Agency Rev. (Queens Baseball Stadium), ASSD GTY, 6.375%, 2039

     45,000      49,167

New York, NY, City Industrial Development Agency Rev. (Queens Baseball Stadium), ASSD GTY, 6.5%, 2046

     195,000      214,777
         
      $ 1,328,348
         

Miscellaneous Revenue - Other – 2.9%

     

Austin, TX, Convention Center (Convention Enterprises, Inc.), “A”, SYNCORA, 5.25%, 2017

   $ 95,000    $ 92,236

Austin, TX, Convention Center (Convention Enterprises, Inc.), “A”, SYNCORA, 5.25%, 2019

     190,000      180,078

Austin, TX, Convention Center (Convention Enterprises, Inc.), “A”, SYNCORA, 5.25%, 2020

     155,000      145,136

Austin, TX, Convention Center (Convention Enterprises, Inc.), “A”, SYNCORA, 5.25%, 2024

     90,000      81,663

Dallas, TX, Civic Center Convention Complex Rev., ASSD GTY, 5.25%, 2034

     465,000      478,597

District of Columbia Rev. (Smithsonian Institution), 5%, 2028

     1,000,000      1,001,790

New Orleans, LA, Aviation Board Gulf Opportunity Zone CFC Rev. (Consolidated Rental Car), “A”, 6.25%, 2030

     185,000      191,316

Oklahoma Industries Authority Rev. (Oklahoma Medical Research Foundation Project), 5.5%, 2029

     600,000      619,770

Summit County, OH, Port Authority Building Rev. (Seville Project), “A”, 5.1%, 2025

     415,000      350,148

V Lakes Utility District Ranking Water Systems Rev., 7%, 2037

     85,000      73,519
         
      $ 3,214,253
         

Multi-Family Housing Revenue – 5.2%

     

Broward County, FL, Housing Finance Authority Rev. (Chaves Lakes Apartments Ltd.), “A”, 7.5%, 2040

   $ 500,000    $ 477,420

Capital Trust Agency, FL, Housing Rev. (Atlantic Housing Foundation), “B”, 7%, 2032

     355,000      149,104

Charter Mac Equity Issuer Trust, FHLMC, 6.3%, 2019 (n)

     500,000      523,975

Charter Mac Equity Issuer Trust, “B”, FHLMC, 7.6%, 2050 (b)(n)

     500,000      516,970

Clay County, FL, Housing Finance Authority Rev. (Madison Commons Apartments), “A”, 7.45%, 2040

     235,000      218,296

District of Columbia Housing Finance Agency (Henson Ridge), “E”, FHA, 5.1%, 2037

     500,000      482,140

Durham, NC, Durham Housing Authority Rev. (Magnolia Pointe Apartments), 5.65%, 2038 (b)

     371,662      291,725

 

6


MFS Investment Grade Municipal Trust

PORTFOLIO OF INVESTMENTS (Unaudited) 2/28/10 - continued

 

Issuer

   Shares/Par    Value ($)

Municipal Bonds – continued

     

Multi-Family Housing Revenue – continued

     

Minneapolis, MN, Student Housing Rev. (Riverton Community Housing Project), “A”, 5.7%, 2040

   $ 250,000    $ 192,278

MuniMae TE Bond Subsidiary LLC, 5.5%, 2049 (b)(z)

     1,000,000      634,200

New Mexico Mortgage Finance Authority, Multi-Family Housing Rev. (Sun Pointe Apartments), “E”, FHA, 4.8%, 2040

     500,000      464,235

Resolution Trust Corp., Pass-Through Certificates, “1993”, 8.5%, 2016 (z)

     227,741      214,639

Seattle, WA, Housing Authority Rev., Capped Fund Program (High Rise Rehab), “I”, AGM, 5%, 2025

     500,000      500,700

Tacoma, WA, Housing Authority Multi-Family Rev. (Redwood/Juniper, Pine Tree Harbor, and Conifer South), GNMA, 5.05%, 2037

     1,040,000      1,018,649
         
      $ 5,684,331
         

Sales & Excise Tax Revenue – 1.4%

     

Bolingbrook, IL, Sales Tax Rev., 6.25%, 2024

   $ 250,000    $ 136,558

Massachusetts Bay Transportation Authority, Sales Tax Rev., “A-1”, 5.25%, 2029

     350,000      404,366

Tampa Bay, FL, Sports Authority Rev. (Sales Tax-Tampa Bay Arena), NATL, 5.75%, 2025

     1,000,000      1,038,660
         
      $ 1,579,584
         

Single Family Housing - Local – 0.8%

     

Chicago, IL, Single Family Mortgage Rev., “A”, GNMA, 7.15%, 2031

   $ 15,000    $ 15,502

Minneapolis & St. Paul Housing Authority Rev. (City Living), “A-2”, GNMA, 5%, 2038

     418,429      402,964

Pittsburgh, PA, Urban Redevelopment Authority Rev., “C”, GNMA, 4.8%, 2028

     500,000      505,100
         
      $ 923,566
         

Single Family Housing - State – 2.8%

     

California Housing Finance Agency Rev., “G”, 5.5%, 2042

   $ 385,000    $ 388,334

Colorado Housing & Finance Authority, “A”, 5.5%, 2029

     1,080,000      1,135,436

Colorado Housing & Finance Authority, “B-2”, 7.25%, 2031

     35,000      36,261

Maine Housing Authority Mortgage, “A-2”, 4.95%, 2027

     500,000      488,440

Montana Board Housing (Single Family Mortgage), “A”, 5%, 2036

     770,000      737,398

North Dakota Housing Finance Agency Rev., “A”, 4.85%, 2021

     310,000      311,386
         
      $ 3,097,255
         

Solid Waste Revenue – 2.0%

     

Delaware County, PA, Industrial Development Authority Rev. (American Ref-Fuel), “A”, 6.1%, 2013

   $ 870,000    $ 875,046

Massachusetts Industrial Finance Agency, Resource Recovery Rev. (Ogden Haverhill Associates), “A”, 5.45%, 2012

     1,250,000      1,268,713

Pennsylvania Economic Development Financing Authority, Sewer Sludge Disposal Rev. (Philadelphia Biosolids Facility), 6.25%, 2032

     55,000      56,497
         
      $ 2,200,256
         

State & Agency - Other – 0.2%

     

Commonwealth of Puerto Rico (Mepsi Campus), “A”, 6.25%, 2024

   $ 100,000    $ 96,116

Commonwealth of Puerto Rico (Mepsi Campus), “A”, 6.5%, 2037

     100,000      91,209
         
      $ 187,325
         

State & Local Agencies – 18.0%

     

Andover, MN, Economic Development Authority Public Facilities Lease Rev. (Andover Community Center), 5%, 2014 (j)

   $ 245,000    $ 271,345

Andover, MN, Economic Development Authority Public Facilities Lease Rev. (Andover Community Center), 5%, 2014 (j)

     355,000      393,173

Berkeley County, SC, School District Installment Lease (Securing Assets for Education), 5%, 2028

     500,000      503,015

Dorchester County, SC, School District No. 2, Growth Remedy Opportunity Tax Hike, 5.25%, 2029

     250,000      258,775

Golden State, CA, Tobacco Securitization Corp., Tobacco Settlement Rev., Enhanced, “A”, 5%, 2045

     420,000      352,094

 

7


MFS Investment Grade Municipal Trust

PORTFOLIO OF INVESTMENTS (Unaudited) 2/28/10 - continued

 

Issuer

   Shares/Par    Value ($)

Municipal Bonds – continued

     

State & Local Agencies – continued

     

Golden State, CA, Tobacco Securitization Corp., Tobacco Settlement Rev., Enhanced, “B”, 5.5%, 2013 (c)

   $ 500,000    $ 568,205

Indiana Office Building Commission Correction Facilities Program Rev. (Women’s Prison), “B”, AMBAC, 6.25%, 2016

     2,820,000      3,229,972

Lancaster, SC, Educational Assistance Program, Inc., School District Lancaster County Project, 5%, 2026

     550,000      554,114

Laurens County, SC, School District No. 55, Installment Purchase Rev., 5.25%, 2030

     350,000      324,639

Los Angeles County, CA, Schools (Regionalized Business Service Corp.) Capital Appreciation Pooled Financing, “A”, AMBAC, 0%, 2021

     2,135,000      1,022,387

Metropolitan Government of Nashville & Davidson County, TN, Health & Educational Facilities Board Rev. (Meharry Medical College), AMBAC, 6%, 2016

     1,575,000      1,750,802

New York Dormitory Authority Rev. (City University) “A”, 5.75%, 2018

     5,000,000      5,726,650

New York Urban Development Corp. Rev. (State Facilities), 5.6%, 2015

     1,000,000      1,114,560

Newberry, SC, Investing in Children’s Education (Newberry County School District Program), 5%, 2030

     350,000      323,946

Philadelphia, PA, Municipal Authority Rev., 6.5%, 2034

     105,000      109,974

Riverside, MO, Tax Increment Rev. (L-385 Levee Project), 5.25%, 2020

     500,000      507,405

St. Louis, MO, Industrial Development Authority Leasehold Rev. (Convention Center Hotel), AMBAC, 0%, 2018

     300,000      184,884

Utah Building Ownership Authority Lease Rev. (State Facilities Master Lease Program), “C”, AGM, 5.5%, 2019

     1,750,000      2,044,683

West Virginia Building Commission, Lease Rev. (WV Regional Jail), “A”, AMBAC, 5.375%, 2018

     500,000      548,705
         
      $ 19,789,328
         

Student Loan Revenue – 0.4%

     

Massachusetts Educational Financing Authority, Education Loan Rev., “H”, ASSD GTY, 6.35%, 2030

   $ 445,000    $ 472,341
         

Tax - Other – 3.4%

     

Dallas County, TX, Flood Control District, 7.25%, 2032

   $ 500,000    $ 521,565

Dona Ana County, NM, Gross Receipts Tax Rev., AMBAC, 5.5%, 2015

     1,000,000      1,052,380

New York, NY, Transitional Finance Authority Rev., “A”, 5%, 2026 (f)

     1,960,000      2,027,346

Virgin Islands Public Finance Authority Rev. (Diageo Project), “A”, 6.75%, 2037

     160,000      171,040
         
      $ 3,772,331
         

Tax Assessment – 4.0%

     

Atlanta, GA, Tax Allocation (Eastside Project), “A”, 5.625%, 2016

   $ 300,000    $ 303,357

Celebration Community Development District, FL, “A”, 6.4%, 2034

     225,000      225,869

Chicago, IL, Tax Increment Allocation (Pilsen Redevelopment), “B”, 6.75%, 2022

     610,000      578,805

Du Page County, IL, Special Service Area (Monarch Landing Project), 5.4%, 2016

     189,000      177,119

Grand Bay at Doral Community Development District, FL, “B”, 6%, 2017

     405,000      278,620

Heritage Harbour North Community Development District, FL, Capital Improvement Rev., 6.375%, 2038

     130,000      103,822

Huntington Beach, CA, Community Facilities District, Special Tax (Grand Coast Resort), “2000-1”, 6.45%, 2031

     300,000      294,195

Lincoln, CA, Special Tax (Community Facilities District ), “2003-1”, 5.55%, 2013 (c)

     445,000      520,597

Lincolnshire, IL, Special Service Area No. 1 (Sedgebrook Project), 6.25%, 2034

     225,000      168,057

Magnolia Park Community Development District, FL, Special Assessment, “A”, 6.15%, 2039

     180,000      118,377

Plano, IL, Special Service Area No. 4 (Lakewood Springs Project Unit 5-B), 6%, 2035

     738,000      610,968

Portage, IN, Economic Development Rev. (Ameriplex Project), 5%, 2027

     105,000      93,235

Seven Oaks, FL, Community Development District II Special Assessment Rev., “A”, 5.875%, 2035

     465,000      259,517

Tolomato Community Development District, FL, Special Assessment, 6.65%, 2040

     100,000      84,203

Volo Village, IL, Special Service Area No. 3, Special Tax (Symphony Meadows Project), “1”, 6%, 2036

     250,000      159,985

West Villages Improvement District, FL, Special Assessment Rev. (Unit of Development No. 3), 5.5%, 2037

     490,000      222,646

 

8


MFS Investment Grade Municipal Trust

PORTFOLIO OF INVESTMENTS (Unaudited) 2/28/10 - continued

 

Issuer

   Shares/Par    Value ($)

Municipal Bonds – continued

     

Tax Assessment – continued

     

Westridge, FL, Community Development District, Capital Improvement Rev., 5.8%, 2037 (d)

   $ 480,000    $ 196,790
         
      $ 4,396,162
         

Tobacco – 4.8%

     

Badger, WI, Tobacco Asset Securitization Corp., 6.375%, 2012 (c)

   $ 250,000    $ 280,103

Buckeye, OH, Tobacco Settlement Financing Authority, “A-2”, 5.875%, 2030

     480,000      406,843

Buckeye, OH, Tobacco Settlement Financing Authority, “A-2”, 5.875%, 2047

     1,405,000      1,051,699

Buckeye, OH, Tobacco Settlement Financing Authority, “A-2”, 6.5%, 2047

     635,000      520,357

Golden State, CA, Tobacco Securitization Corp., Tobacco Settlement Rev., “A-1”, 6.25%, 2013 (c)

     630,000      702,469

Inland Empire, CA, Tobacco Securitization Corp., Tobacco Settlement Rev., Asset Backed, “C-1”, 0%, 2036

     250,000      23,055

Louisiana Tobacco Settlement Authority Rev., “2001-B”, 5.875%, 2039

     300,000      278,895

Michigan Tobacco Settlement Finance Authority Rev., Asset Backed, “A”, 6%, 2048

     1,380,000      1,086,571

South Carolina Tobacco Settlement Authority Rev., “B”, 6.375%, 2011 (c)

     400,000      429,628

Virginia Tobacco Settlement Financing Corp., “B-1”, 5%, 2047

     105,000      73,798

Washington Tobacco Settlement Authority Rev., 6.625%, 2032

     460,000      462,797
         
      $ 5,316,215
         

Toll Roads – 2.6%

     

Northwest Parkway, CO, Public Highway Authority (First Tier), “D”, 7.125%, 2011 (c)

   $ 495,000    $ 540,495

Pennsylvania Turnpike Commission, Capital Appreciation, “C”, AGM, 0%, 2033

     1,180,000      860,539

San Joaquin Hills, CA, Transportation Corridor Agency Toll Road Rev., “A”, NATL, 0%, 2015

     2,000,000      1,449,200
         
      $ 2,850,234
         

Transportation - Special Tax – 1.2%

     

Regional Transportation Authority, IL, “C”, FGIC, 7.75%, 2020

   $ 1,000,000    $ 1,286,440
         

Universities - Colleges – 25.8%

     

Anderson, IN, Economic Development Rev. (Anderson University Project), 5%, 2028

   $ 225,000    $ 203,024

California Educational Facilities Authority Rev. (California Lutheran University), 5.75%, 2038

     350,000      344,673

California Educational Facilities Authority Rev. (University of Southern California), “A”, 5.25%, 2038

     535,000      569,540

California Municipal Finance Authority Rev. (Biola University), 5.8%, 2028

     100,000      102,061

California State University Rev., “A”, AMBAC, 5%, 2026

     960,000      988,963

District of Columbia Rev. (Georgetown University), BHAC, 0% to 2018, 5% to 2040

     1,430,000      839,381

Grand Valley, MI, State University Rev., 5.5%, 2027

     115,000      122,443

Grand Valley, MI, State University Rev., 5.625%, 2029

     55,000      58,528

Harris County, TX, Cultural Education Facilities Rev. (Baylor College of Medicine), “D”, 5.625%, 2032

     490,000      455,872

Illinois Finance Authority Rev. (Illinois Institute of Technology), “A”, 5%, 2031

     335,000      301,497

Illinois Finance Authority Rev. (Illinois Institute of Technology), “A”, 5%, 2036

     335,000      292,291

Illinois Finance Authority Rev. (Roosevelt University Project), 6.25%, 2029

     545,000      560,380

Illinois Finance Authority Rev. (Roosevelt University Project), 6.5%, 2039

     125,000      129,404

Lubbock, TX, Educational Facilities Authority Rev. (Lubbock Christian University), 5.125%, 2027

     285,000      273,933

Lubbock, TX, Educational Facilities Authority Rev. (Lubbock Christian University), 5.25%, 2037

     255,000      232,833

Marietta, GA, Development Facilities Authority Rev. (Life University), 7%, 2030

     100,000      94,716

Marietta, GA, Development Facilities Authority Rev. (Life University), 7%, 2039

     100,000      92,868

Massachusetts Development Finance Agency Rev. (Simmons College), SYNCORA, 5.25%, 2026

     125,000      124,310

Massachusetts Development Finance Agency Rev. (Western New England College), 6.125%, 2012 (c)

     315,000      359,339

Massachusetts Health & Educational Facilities Authority Rev. (Simmons College), “I”, 8%, 2029

     225,000      251,690

 

9


MFS Investment Grade Municipal Trust

PORTFOLIO OF INVESTMENTS (Unaudited) 2/28/10 - continued

 

Issuer

   Shares/Par    Value ($)

Municipal Bonds – continued

     

Universities - Colleges – continued

     

Massachusetts Health & Educational Facilities Authority Rev. (Springfield College), 5.625%, 2040

   $ 90,000    $ 89,538

Massachusetts Health & Educational Facilities Authority Rev. (Suffolk University), “A”, 6.25%, 2030

     415,000      443,685

Miami-Dade County, FL, Educational Facilities Authority Rev. (University of Miami), “A”, 5.75%, 2028

     125,000      130,655

Michigan Higher Education Facilities Authority Rev. (College for Creative Studies), 6.125%, 2037

     475,000      430,250

New Jersey Educational Facilities Authority Rev. (University of Medicine & Dentistry), “B”, 7.5%, 2032

     460,000      519,156

New York Dormitory Authority Rev. (Columbia University), 5%, 2038 (u)

     15,000,000      15,889,200

Pennsylvania Higher Educational Facilities Authority Rev. (Lasalle University), “A”, 5.25%, 2027

     45,000      45,222

San Leanna, TX, Educational Facilities Corp., Higher Education Rev. (St. Edwards University), 5.125%, 2036

     115,000      106,484

Tulsa, OK, Industrial Authority Rev. (University of Tulsa), 6%, 2027

     535,000      582,952

University of Minnesota, “A”, ETM, 5.75%, 2014 (c)

     500,000      594,725

University of Minnesota, “A”, ETM, 5.5%, 2021 (c)

     2,000,000      2,383,560

University of Southern Indiana Rev., Student Fee, “J”, ASSD GTY, 5.75%, 2028

     210,000      232,302

University of Southern Mississippi Educational Building Corp. Rev. (Campus Facilities Project), 5.25%, 2032

     190,000      203,336

University of Southern Mississippi, Educational Building Corp. Rev. (Campus Facilities Project), 5.375%, 2036

     65,000      69,666

Washington Higher Education Facilities Authority Rev. (Whitworth University), 5.875%, 2034

     225,000      229,361
         
      $ 28,347,838
         

Universities - Dormitories – 0.7%

     

California Statewide Communities Development Authority Rev. (Lancer Educational Student Housing Project), 5.625%, 2033

   $ 500,000    $ 392,045

California Statewide Communities Development Authority Rev. (Student Housing, SUCI East Campus), 6%, 2040

     220,000      221,192

Maryland Economic Development Corp. Student Housing (University of Maryland - College Park), 5.875%, 2043

     130,000      130,619
         
      $ 743,856
         

Universities - Secondary Schools – 0.3%

     

Colorado Educational & Cultural Facilities Authority Rev. (Academy of Charter Schools Project), 5.625%, 2040

   $ 230,000    $ 227,183

La Vernia, TX, Higher Education Finance Corp. Rev. (KIPP, Inc.), “A”, 6.25%, 2039

     150,000      153,866
         
      $ 381,049
         

Utilities - Cogeneration – 1.0%

     

Pennsylvania Economic Development Financing Authority Rev., Resource Recovery Rev. (Colver), “G”, 5.125%, 2015

   $ 325,000    $ 314,844

Puerto Rico Industrial, Tourist, Educational, Medical & Environmental Central Facilities (Cogeneration Facilities - AES Puerto Rico Project), 6.625%, 2026

     320,000      323,034

Suffolk County, NY, Industrial Development Agency Rev. (Nissequoque Cogeneration Partners Facilities), 5.5%, 2023

     550,000      480,843
         
      $ 1,118,721
         

Utilities - Investor Owned – 10.9%

     

Brazos River Authority, TX, Pollution Control Rev. (Texas Utility Co.), “A”, 7.7%, 2033

   $ 250,000    $ 167,405

Brazos River Authority, TX, Pollution Control Rev. (TXU Electric Co. LLC), “C”, 5.75%, 2036 (b)

     65,000      61,846

Brazos River Authority, TX, Pollution Control Rev. (TXU Electric Co. LLC), “C”, 6.75%, 2038

     270,000      154,232

Chula Vista, CA, Industrial Development Rev. (San Diego Gas), 5.875%, 2034

     195,000      213,997

Clark County, NV, Industrial Development Rev. (Nevada Power Co. Project), “B”, 5.9%, 2030

     250,000      237,713

 

10


MFS Investment Grade Municipal Trust

PORTFOLIO OF INVESTMENTS (Unaudited) 2/28/10 - continued

 

Issuer

   Shares/Par    Value ($)  

Municipal Bonds – continued

     

Utilities - Investor Owned – continued

     

Clark County, NV, Industrial Development Rev. (Southwest Gas Corp. Project), “E”, 5.8%, 2038 (b)

   $ 250,000    $ 260,788   

Hawaii Department of Budget & Finance Special Purpose Rev. (Hawaiian Electric Co. & Subsidiary), 6.5%, 2039

     410,000      441,738   

Maricopa County, AZ, Pollution Control Corp., Pollution Control Rev. (Arizona Public Service Co.), “D”, 6%, 2029 (b)

     195,000      208,490   

Massachusetts Development Finance Agency, Solid Waste Disposal Rev. (Dominion Energy Brayton), 5.75%, 2042 (b)

     70,000      74,344   

Matagorda County, TX, Navigation District 1 (Houston Lighting.), AMBAC, 5.125%, 2028

     2,000,000      1,864,420   

Michigan Strategic Fund, Ltd. Obligation Rev. (Detroit Edison), “A”, NATL, 5.55%, 2029

     3,000,000      2,919,930   

Mississippi Business Finance Corp., Pollution Control Rev. (Systems Energy Resources Project), 5.875%, 2022

     1,000,000      993,380   

New Hampshire Business Finance Authority, Pollution Control Rev. (Public Service of New Hampshire), “B”, NATL, 4.75%, 2021

     250,000      245,105   

Pennsylvania Economic Development Financing Authority (Allegheny Energy Supply Co. LLC), 7%, 2039

     495,000      552,969   

Petersburg, IN, Pollution Control Rev. (Indianapolis Power & Light), NATL, 5.4%, 2017

     2,500,000      2,719,125   

Pima County, AZ, Industrial Development Authority Rev. (Tucson Electric Power Co.), 5.75%, 2029

     485,000      485,592   

Sweetwater County, WY, Pollution Control Rev. (Idaho Power Co.), 5.25%, 2026

     425,000      434,792   
           
      $ 12,035,866   
           

Utilities - Other – 3.3%

     

Indiana Bond Bank Special Program, Gas Rev., “A”, 5.25%, 2018

   $ 190,000    $ 197,461   

Main Street Natural Gas, Inc., GA, Gas Project Rev., “A”, 5.5%, 2026

     120,000      117,073   

Main Street Natural Gas, Inc., GA, Gas Project Rev., “A”, 5.5%, 2028

     250,000      242,095   

Public Authority for Colorado Energy Natural Gas Purchase Rev., 6.5%, 2038

     235,000      258,542   

Salt Verde Financial Corp., AZ, Senior Gas Rev., 5%, 2032

     795,000      703,678   

Salt Verde Financial Corp., AZ, Senior Gas Rev., 5%, 2037

     790,000      672,116   

Tennessee Energy Acquisition Corp., Gas Rev., “A”, 5.25%, 2017

     180,000      185,620   

Tennessee Energy Acquisition Corp., Gas Rev., “A”, 5.25%, 2022

     205,000      204,813   

Tennessee Energy Acquisition Corp., Gas Rev., “A”, 5.25%, 2023

     300,000      297,996   

Tennessee Energy Acquisition Corp., Gas Rev., “A”, 5.25%, 2026

     610,000      593,603   

Tennessee Energy Acquisition Corp., Gas Rev., “C”, 5%, 2025

     185,000      179,691   
           
      $ 3,652,688   
           

Water & Sewer Utility Revenue – 3.0%

     

Atlanta, GA, Water & Wastewater Rev., “A”, 6%, 2022

   $ 290,000    $ 316,161   

Commonwealth of Puerto Rico Aqueduct & Sewer Authority Rev., “A”, 6%, 2038

     505,000      517,575   

Commonwealth of Puerto Rico Aqueduct & Sewer Authority Rev., “A”, 6%, 2044

     195,000      199,727   

Detroit, MI, Sewer Disposal System Rev., “B”, AGM, 7.5%, 2033

     410,000      488,331   

Hampton Roads, VA, Sanitation District Wastewater Rev., 5%, 2033

     140,000      148,684   

Massachusetts Water Pollution Abatement, 5.25%, 2028

     750,000      897,488   

Massachusetts Water Resources Authority, “B”, AGM, 5.25%, 2029

     600,000      697,890   
           
      $ 3,265,856   
           

Total Municipal Bonds

      $ 164,007,581   
           

Money Market Funds (v) – 0.6%

     

MFS Institutional Money Market Portfolio, 0.14%, at Net Asset Value

     614,132    $ 614,132   
           

Total Investments

      $ 164,621,713   
           

Other Assets, Less Liabilities (5.4)%

        (5,897,498

Preferred shares (issued by the fund) (44.3)%

        (48,750,000
           

Net assets applicable to common shares – 100.0%

      $ 109,974,215   
           

 

(a) Non-income producing security.
(b) Mandatory tender date is earlier than stated maturity date.

 

11


MFS Investment Grade Municipal Trust

PORTFOLIO OF INVESTMENTS (Unaudited) 2/28/10 - continued

 

(c) Refunded bond.
(d) Non-income producing security - in default.
(f) All or a portion of the security has been segregated as collateral for open futures contracts.
(j) Crossover refunded bond.
(n) Securities exempt from registration under Rule 144A of the Securities Act of 1933. These securities may be sold in the ordinary course of business in transactions exempt from registration, normally to qualified institutional buyers. At period end, the aggregate value of these securities was $1,295,896 representing 1.2% of net assets applicable to common shares.
(u) Underlying security deposited into special purpose trust (“the trust”) by investment banker upon creation of self-deposited inverse floaters.
(v) Underlying fund that is available only to investment companies managed by MFS. The rate quoted is the annualized seven-day yield of the fund at period end.
(z) Restricted securities are not registered under the Securities Act of 1933 and are subject to legal restrictions on resale. These securities generally may be resold in transactions exempt from registration or to the public if the securities are subsequently registered. Disposal of these securities may involve time-consuming negotiations and prompt sale at an acceptable price may be difficult. The fund holds the following restricted securities:

 

Restricted Securities

   Acquisition
Date
   Cost    Current
Market Value
 

Cabazon Band of Mission Indians, CA, 8.375%, 2015

   10/04/04    $ 100,000    $ 66,615   

Cabazon Band of Mission Indians, CA, 8.75%, 2019

   10/04/04      360,000      237,010   

MuniMae TE Bond Subsidiary LLC, 5.5%, 2049

   11/02/05      1,000,000      634,200   

Resolution Trust Corp., Pass-Through Certificates, “1993”, 8.5%, 2016

   8/27/93      232,276      214,639   
              

Total Restricted Securities

         $ 1,152,464   

% of Net Assets applicable to common shares

           1

The following abbreviations are used in this report and are defined:

 

COP    Certificate of Participation
ETM    Escrowed to Maturity
LOC    Letter of Credit

Insurers

    
AGM    Assured Guaranty Municipal
AMBAC    AMBAC Indemnity Corp.
ASSD GTY    Assured Guaranty Insurance Co.
BHAC    Berkshire Hathaway Assurance Corp.
CHCLI    California Health Construction Loan Insurance
FGIC    Financial Guaranty Insurance Co.
FHA    Federal Housing Administration
FHLMC    Federal Home Loan Mortgage Corp.
GNMA    Government National Mortgage Assn.
NATL    National Public Finance Guarantee Corp.
SYNCORA    Syncora Guarantee Inc.

See attached supplemental information. For more information see notes to financial statements as disclosed in the most recent semiannual or annual report.

 

12


MFS Investment Grade Municipal Trust

Supplemental Information (Unaudited) 2/28/10

(1) Investment Valuations

Debt instruments and floating rate loans (other than short-term instruments), including restricted debt instruments, are generally valued at an evaluated or composite bid as provided by a third-party pricing service. Short-term instruments with a maturity at issuance of 60 days or less generally are valued at amortized cost, which approximates market value. Futures contracts are generally valued at last posted settlement price as provided by a third-party pricing service on the market on which they are primarily traded. Futures contracts for which there were no trades that day for a particular position are generally valued at the closing bid quotation as provided by a third-party pricing service on the market on which such futures contracts are primarily traded. Open-end investment companies are generally valued at net asset value per share. Securities and other assets generally valued on the basis of information from a third-party pricing service may also be valued at a broker/dealer bid quotation. Values obtained from third-party pricing services can utilize both transaction data and market information such as yield, quality, coupon rate, maturity, type of issue, trading characteristics, and other market data.

The Board of Trustees has delegated primary responsibility for determining or causing to be determined the value of the fund’s investments (including any fair valuation) to the adviser pursuant to valuation policies and procedures approved by the Board. If the adviser determines that reliable market quotations are not readily available, investments are valued at fair value as determined in good faith by the adviser in accordance with such procedures under the oversight of the Board of Trustees. Under the fund’s valuation policies and procedures, market quotations are not considered to be readily available for most types of debt instruments and floating rate loans and many types of derivatives. These investments are generally valued at fair value based on information from third-party pricing services. In addition, investments may be valued at fair value if the adviser determines that an investment’s value has been materially affected by events occurring after the close of the exchange or market on which the investment is principally traded (such as foreign exchange or market) and prior to the determination of the fund’s net asset value, or after the halting of trading of a specific security where trading does not resume prior to the close of the exchange or market on which the security is principally traded. The adviser generally relies on third-party pricing services or other information (such as the correlation with price movements of similar securities in the same or other markets; the type, cost and investment characteristics of the security; the business and financial condition of the issuer; and trading and other market data) to assist in determining whether to fair value and at what value to fair value an investment. The value of an investment for purposes of calculating the fund’s net asset value can differ depending on the source and method used to determine value. When fair valuation is used, the value of an investment used to determine the fund’s net asset value may differ from quoted or published prices for the same investment. There can be no assurance that the fund could obtain the fair value assigned to an investment if it were to sell the investment at the same time at which the fund determines its net asset value per share.

Various inputs are used in determining the value of the fund’s assets or liabilities. These inputs are categorized into three broad levels. In certain cases, the inputs used to measure fair value may fall into different levels of the fair value hierarchy. In such cases, an investment’s level within the fair value hierarchy is based on the lowest level of input that is significant to the fair value measurement. The fund’s assessment of the significance of a particular input to the fair value measurement in its entirety requires judgment, and considers factors specific to the investment. Level 1 includes unadjusted quoted prices in active markets for identical assets or liabilities. Level 2 includes other significant observable market-based inputs (including quoted prices for similar securities, interest rates, prepayment speed, and credit risk). Level 3 includes unobservable inputs, which may include the adviser’s own assumptions in determining the fair value of investments. Other financial instruments are derivative instruments not reflected in total investments, such as futures, forwards, swap contracts, and written options. The following is a summary of the levels used as of February 28,2010 in valuing the fund’s assets or liabilities:

 

Investments at Value

   Level 1     Level 2    Level 3    Total  

Municipal Bonds

   $ —        $ 164,007,581    $ —      $ 164,007,581   

Mutual Funds

     614,132        —        —        614,132   
                              

Total Investments

   $ 614,132      $ 164,007,581    $ —      $ 164,621,713   
                              

Other Financial Instruments

                      

Futures

   $ (154,404   $ —      $ —      $ (154,404

For further information regarding security characteristics, see the Portfolio of Investments

In January 2010, Accounting Standards Update (ASU) No. 2010-06, Improving Disclosures about Fair Value Measurements (the “Update”) was issued, and is effective for interim and annual reporting periods beginning after December 15, 2009. This Update provides for expanded disclosures about fair value measurements. Management has evaluated the application of the Update to the fund, and believes the impact is limited to expanded disclosures resulting from the adoption of this Update in the fund’s financial statements.

(2) Portfolio Securities

The cost and unrealized appreciation and depreciation in the value of the investments owned by the fund, as computed on a federal income tax basis, are as follows:

 

Aggregate cost

   $ 153,971,221   
        

Gross unrealized appreciation

   $ 9,593,818   

Gross unrealized depreciation

     (6,456,076
        

Net unrealized appreciation (depreciation)

   $ 3,137,742   
        

The aggregate cost above includes prior fiscal year end tax adjustments.

 

13


MFS Investment Grade Municipal Trust

Supplemental Information (Unaudited) 2/28/10 - continued

(3) Derivative Contracts at 2/28/10

Futures Contracts Outstanding at 2/28/10

 

Description

   Currency    Contracts    Value    Expiration
Date
   Unrealized
Appreciation
(Depreciation)
 

Liability Derivatives

              

Interest Rate Futures

              

U.S. Treasury Note 10 yr (Short)

   USD    115    $ 13,510,703    Jun-10    $ (95,003

U.S. Treasury Note 30 yr (Short)

   USD    41      4,825,188    Jun-10      (59,401
                    
               $ (154,404
                    

At February 28, 2010, the fund had sufficient cash and/or other liquid securities to cover any commitments under these derivative contracts.

(4) Transactions in Underlying Funds-Affiliated Issuers

An affiliated issuer may be considered one in which the fund owns 5% or more of the outstanding voting securities, or a company which is under common control. For the purposes of this report, the fund assumes the following to be affiliated issuers:

 

Underlying Funds

   Beginning
Shares/Par
Amount
   Acquisitions
Shares/Par
Amount
   Dispositions
Shares/Par
Amount
    Ending
Shares/Par
Amount

MFS Institutional Money Market Portfolio

     1,647,155      6,935,594      (7,968,617     614,132

Underlying Funds

   Realized
Gain
(Loss)
   Capital Gain
Distributions
   Dividend
Income
    Ending
Value

MFS Institutional Money Market Portfolio

   $ —      $ —      $ 661      $ 614,132

 

14


ITEM 2. CONTROLS AND PROCEDURES.

 

(a) Based upon their evaluation of the effectiveness of the registrant’s disclosure controls and procedures (as defined in Rule 30a-3(c) under the Investment Company Act of 1940 (the “Act”)) as conducted within 90 days of the filing date of this Form N-Q, the registrant’s principal financial officer and principal executive officer have concluded that those disclosure controls and procedures provide reasonable assurance that the material information required to be disclosed by the registrant on this report is recorded, processed, summarized and reported within the time periods specified in the Securities and Exchange Commission’s rules and forms.

 

(b) There were no changes in the registrant’s internal controls over financial reporting (as defined in Rule 30a-3(d) under the Act) that occurred during the registrant’s last fiscal quarter that have materially affected, or are reasonably likely to materially affect, the registrant’s internal control over financial reporting.

 

ITEM 3. EXHIBITS.

File as exhibits as part of this Form a separate certification for each principal executive officer and principal financial officer of the registrant as required by Rule 30a-2(a) under the Act (17 CFR 270.30a-2): Attached hereto.


Notice

A copy of the Agreement and Declaration of Trust, as amended, of the Registrant is on file with the Secretary of State of The Commonwealth of Massachusetts and notice is hereby given that this instrument is executed on behalf of the Registrant by an officer of the Registrant as an officer and not individually and the obligations of or arising out of this instrument are not binding upon any of the Trustees or shareholders individually, but are binding only upon the assets and property of the respective constituent series of the Registrant.


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.

Registrant: MFS INVESTMENT GRADE MUNICIPAL TRUST

 

By (Signature and Title)*    MARIA F. DWYER
  Maria F. Dwyer, President

Date: April 16, 2010

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 (Signature and Title)*    MARIA F. DWYER
  Maria F. Dwyer, President (Principal Executive Officer)

Date: April 16, 2010

 

By (Signature and Title)*    JOHN M. CORCORAN
  John M. Corcoran, Treasurer (Principal Financial Officer and Accounting Officer)

Date: April 16, 2010

 

* Print name and title of each signing officer under his or her signature.