[GRAPHIC] COLONIAL INVESTMENT GRADE MUNICIPAL TRUST SEMIANNUAL REPORT MAY 31, 2002 PRESIDENT'S MESSAGE DEAR SHAREHOLDER: The environment for the municipal bond market has been shaped by economic events and investor uncertainties over the past six months. Although the Federal Reserve halted its string of interest rate cuts in December 2001, its presence on the sidelines was felt by the market as investors tried to guess the timing of its next move. A robust first quarter suggested that the Fed could act early in 2002 to begin to raise short-term interest rates; however, they remained at a 40-year low throughout the period. Indications of more moderate economic growth in the second quarter raised the possibility that the Fed may delay action until later in the year. The municipal bond market was one of the strongest bond market sectors for the six-month period. As cities and states face leaner times and tighter budgets, the volume of new municipal bonds increased somewhat. However, demand also increased as investors favored bonds over stocks, and that has helped support municipal bond returns. The following report will provide you with more detailed information about the trust's performance and the strategies used by portfolio manager Maureen G. Newman. For more information, contact your financial advisor. As always, we thank you for investing in Colonial Investment Grade Municipal Trust and for giving us the opportunity to help you build a strong financial future. /s/ Keith T. Banks Keith T. Banks President Colonial Management Associates, Inc. Not FDIC Insured May Lose Value No Bank Guarantee Economic and market conditions can frequently change. There is not assurance that the trends described herein will continue or commence. PORTFOLIO MANAGER'S REPORT For the six-month period ended May 31, 2002, Colonial Investment Grade Municipal Trust generated a 2.88% total return, based on net asset value. The trust outperformed the average 2.62% return of its peer group, the Lipper General Municipal Debt Funds (Leveraged). The trust benefited from its relatively large allocation to intermediate-term bonds, which generally outperformed long-maturity bonds. Also, the trust's leverage, investing the proceeds from the sale of preferred shares in long-term bonds and paying out a short rate, boosted its income stream. As a result, the income available for distribution to common shareholders was enhanced. The trust's relatively long duration at the beginning of the period detracted from performance. However, we shortened duration as economic growth improved. Duration measures sensitivity to interest rate changes (see sidebar). The trust's investment in Ogden Haverhill Project, (0.6% of net assets) a resource recovery project in Haverhill, Massachusetts, also had a negative effect on performance. These bonds lost value when its parent company filed for bankruptcy, even though the operations and finances of Ogden Haverhill Project have not been affected by the bankruptcy. Effective July 31, 2002, the trust's investment strategies were changed to indicate that the trust will, under normal conditions, invest at least 80% of its net assets (plus any borrowings for investment purposes) in investment grade Municipal Obligations (bonds rated Baa or higher by Moody's Investors Service, Inc. or BBB or higher by Standard & Poor's Ratings Services, or comparably rated by another national bond rating service or unrated but considered to be of comparable quality by the trust's advisor). "Municipal Obligations" are debt obligations, the interest on which was at the time of issuance, in the opinion of bond counsel to the issuer, exempt from federal income tax (other than the possible incidence of any alternative minimum tax). Prior to July 31, 2002, the trust was required to invest primarily (at least 65% of its assets) in investment grade Municipal Obligations. We have structured the portfolio to take advantage of a moderately improving economic environment, one in which interest rates will stabilize or rise. In the months ahead, we expect most of the trust's total return to come from income. Therefore, we added small positions in several cyclical issuers, including Cessna Citation Service Center (0.3% of net assets)(1), the aircraft division of Textron Manufacturing Company which have the potential to boost the trust's income. In keeping with our income-producing strategy, we plan to invest a small portion of the trust's assets in lower quality bonds. /s/ Maureen G. Newman MAUREEN G. NEWMAN Maureen G. Newman is the portfolio manager of Colonial Investment Grade Municipal Trust and a senior vice president of Colonial Management Associates, Inc., an affiliate of Columbia Management Group. Ms. Newman received her BA in economics from Boston College and her MBA from Babson College. She is a Chartered Financial Analyst, a member of the Boston Security Analysts Society and former chairman of the National Federation of Municipal Analysts. (1) Holdings are disclosed as of May 31, 2002 and are subject to change. Past performance is no guarantee of future investment results. The principal value and investment returns will fluctuate, resulting in a gain or loss on sale. Tax-exempt investing offers current tax-exempt income, but it also involves certain risks. The value of the trust shares will be affected by interest rate changes and the creditworthiness of issues held in the trusts. Interest income from certain tax-exempt bonds may be subject to the federal alternative minimum tax for individuals and corporations. PRICE PER SHARE AS OF 5/31/02 ($) Net asset value 11.02 ------------------------------------------ Market price 10.44 ------------------------------------------ 6-MONTH TOTAL RETURNS (%) Net asset value 2.88 ------------------------------------------ Market price (0.83) ------------------------------------------ DISTRIBUTIONS DECLARED PER COMMON SHARE ($) 12/1/01-5/31/02 0.34 ------------------------------------------ A portion of the trust's income may be subject to the alternative minimum tax. The trust may at times purchase tax-exempt securities at a discount from their original issue price. Some or all of this discount may be included in the trust's ordinary income, and any market discount is taxable when distributed. TOP 10 INDUSTRY SECTORS AS OF 5/31/02 (%) Local general obligations 17.8 ----------------------------------------------- Hospitals 10.1 ----------------------------------------------- State appropriated 8.3 ----------------------------------------------- Education 8.1 ----------------------------------------------- State general obligations 6.4 ----------------------------------------------- Refunded/escrowed 4.8 ----------------------------------------------- Investor owned 5.1 ----------------------------------------------- Toll facilities 4.8 ----------------------------------------------- Special non-property tax 4.7 ----------------------------------------------- Water & sewer 4.1 ----------------------------------------------- Sector breakdowns are calculated as a percentage of net assets representing both common shares and auction preferred shares. QUALITY BREAKDOWN AS OF 5/31/02 (%) AAA 62.0 ----------------------------------------------- AA 15.5 ----------------------------------------------- A 6.7 ----------------------------------------------- BBB 7.0 ----------------------------------------------- BB 0.8 ----------------------------------------------- B 0.2 ----------------------------------------------- Non-rated 7.5 ----------------------------------------------- Cash equivalents 0.3 ----------------------------------------------- Quality breakdowns are calculated as a percentage of total investments, including short-term obligations. Ratings shown in the quality breakdown represent the highest rating assigned to a a particular bond by one of the following nationally recognized rating agencies: Standard & Poor's Corporation, Moody's Investors Service, Inc. or Fitch Investors Service, Inc. Because the trust is actively managed, there can be no guarantee that the trust will continue to maintain this quality breakdown or invest in these sectors in the future. ABOUT DURATION Duration is a measure, expressed in years, of interest-rate sensitivity. It's similar to maturity, but because it takes into consideration the entire stream of future principal and interest payments and how long it will take to collect them, it is a more complex and also a more accurate measure of a trust's exposure to changing interest rates. Because we are active duration managers, we tend to use duration as a tactical tool to anticipate or respond to interest rate changes. Because bond prices move in the opposite direction that interest rates are moving, usually we lower duration when we expect interest rates to rise or raise it when we expect interest rates to fall. This adjustment provides the potential to benefit performance. If we are wrong and interest rates rise after we lengthen duration or fall after we shorten duration, trust performance could be hurt. 1 INVESTMENT PORTFOLIO May 31, 2002 (Unaudited) MUNICIPAL BONDS - 98.3% (continued) PAR VALUE ------------ ------------ EDUCATION - 9.0% EDUCATION - 8.1% AL University of South Alabama, Series 1999, (a) 11/15/18 $ 2,500,000 $ 1,051,500 IL Chicago, State University Auxiliary Facilities, Series 1998, 5.500% 12/01/23 1,085,000 1,139,825 MA State College Building Authority, Series 1999 A, (a) 05/01/23 2,710,000 896,360 MA State Health & Educational Facilities Authority, Brandeis University, Series 1998 I, 4.750% 10/01/28 2,550,000 2,349,902 MA State Industrial Finance Agency: Tabor Academy, Series 1998, 5.400% 12/01/28 1,000,000 955,430 Tufts University, Series 1998 H, 4.750% 02/15/28 1,500,000 1,385,385 MN University of Minnesota: Series 1996 A, 5.750% 07/01/14 500,000 560,225 Series 1999 A, 5.500% 07/01/21 2,000,000 2,145,000 MO State Health & Educational Facilities Authority, Central Institute for the Deaf, Series 1999, 5.850% 01/01/22 600,000 630,366 NY St. Lawrence County Industrial Development Agency, St. Lawrence University, Series 1998 A, 5.500% 07/01/13 1,465,000 1,581,599 TX Texas Tech University, Series 1999, 5.000% 02/15/29 2,500,000 2,393,300 ------------ 15,088,892 ------------ STUDENT LOAN - 0.9% NE Nebhelp, Inc., Series 1993 A-6, 6.450% 06/01/18 1,500,000 1,679,340 ------------ -------------------------------------------------------------------------------- HEALTH CARE - 12.9% HOSPITALS - 10.1% AZ Maricopa County Industrial Development Authority, National Health Facilities II Project, 5.100% 01/01/33 2,500,000 2,461,800 FL Orange County Health Facilities Authority, Orlando Regional Healthcare System: Series 1996 C, 6.250% 10/01/13 2,460,000 2,886,084 Series 1999, 6.000% 10/01/26 $ 175,000 $ 178,489 Series 2002, 5.750% 12/01/32 (b) 150,000 149,358 FL South Broward Hospital District, Series 2002, 5.625% 05/01/32 1,000,000 989,240 IL Southwestern Illinois Development Authority, Anderson Hospital, Series 1999, 5.375% 08/15/15 380,000 356,372 IL State Development Finance Authority, Adventist Health System, Series 1999, 5.500% 11/15/20 1,000,000 957,630 IL State Health Facilities Authority, Swedish American Hospital, Series 2000, 6.875% 11/15/30 500,000 532,985 LA Jefferson Parish Hospital Service District 2, Series 1998, 5.250% 07/01/12 1,000,000 1,057,930 LA State Public Facilities Authority, Touro Infirmary, Series 1999 A, 5.625% 08/15/29 500,000 490,060 MA State Health & Educational Facilities Authority, South Shore Hospital, Series 1999 F, 5.750% 07/01/29 1,000,000 990,460 MD State Health & Educational Facilities Authority, University of Maryland Medical System, 6.750% 07/01/30 250,000 269,732 MI Flint Hospital Building Authority, Hurley Medical Center, Series 1998 B, 5.375% 07/01/28 500,000 416,145 NC State Medical Care Commission, Gaston Health Care, Series 1998, 5.000% 02/15/29 2,450,000 2,292,367 NH Higher Educational & Health Facilities, Catholic Medical Center, Series 1989, 6.000% 07/01/17 2,500,000 2,500,175 NV Henderson, Catholic Healthcare West, Series 1999 A, 6.750% 07/01/20 500,000 524,685 TN Metropolitan Government, Nashville & Davidson Counties, Meharry Medical College, Series 1996, 6.000% 12/01/16 1,575,000 1,790,302 ------------ 18,843,814 ------------ INTERMEDIATE CARE FACILITIES - 0.2% IL State Development Finance Authority, Hoosier Care, Inc., Series 1999 A, 7.125% 06/01/34 475,000 415,625 ------------ See notes to investment portfolio. 2 MUNICIPAL BONDS - 98.3% (continued) PAR VALUE ------------ ------------ NURSING HOMES - 2.6% AK Juneau, St. Ann's Care Center, Series 1999, 6.875% 12/01/25 $ 500,000 $ 499,375 CO Health Care Facilities Authority, Pioneer Health Care, Series 1989, 10.500% 05/01/19 1,620,000 1,597,725 DE State Economic Development Authority, Churchman Village Project, Series 1991 A, 10.000% 03/01/21 920,000 1,016,600 PA Chester County Industrial Development Authority, Pennsylvania Nursing Home, Inc., 8.500% 05/01/32 765,000 759,507 PA Delaware County Authority, Main Line and Haverford Nursing, Series 1992, 9.000% 08/01/22 575,000 500,250 WI State Health & Educational Facilities Authority, Metro Health Foundation, Inc., Series 1993, 11.000% 11/01/22 (c) 1,300,000 442,000 ------------ 4,815,457 ------------ -------------------------------------------------------------------------------- HOUSING - 2.0% ASSISTED LIVING/SENIOR - 0.3% TX Bell County Health Facilities Development Corp., Care Institute, Inc., 9.000% 11/01/24 485,000 504,400 ------------ MULTI-FAMILY - 1.3% FL Broward County Housing Finance Authority, Chaves Lake Apartment Project, Series 2000, 7.500% 07/01/40 500,000 508,125 FL Clay County Housing Finance Authority, Madison Commons Apartments, Series 2000 A, 7.450% 07/01/40 250,000 254,063 MN White Bear Lake, Birch Lake Townhome Project: Series 1989 A, 10.250% 07/15/19 775,000 794,375 Series 1989 B, (a) 07/15/19 (d) 685,000 298,115 Resolution Trust Corp., Pass Through Certificates, Series 1993 A, 8.750% 12/01/16 (e) 584,443 587,318 ------------ 2,441,996 ------------ SINGLE FAMILY - 0.4% CO State Housing Finance Authority, Series 2000 B-2, 7.250% 10/01/31 $ 390,000 $ 433,785 IL Chicago, Series 2000 A, 7.150% 09/01/31 360,000 402,433 ------------ 836,218 ------------ -------------------------------------------------------------------------------- INDUSTRIAL - 1.4% FOREST PRODUCTS - 0.5% MN International Falls, Boise Cascade Corp., Series 1999, 6.850% 12/01/29 1,000,000 1,023,450 MANUFACTURING - 0.9% KS Wichita Airport Authority Facilities, Cessna Citation Service Center, Series 2002 A, 6.250% 06/15/32 475,000 477,052 MN Brooklyn Park, TL Systems Corp., Series 1991, 10.000% 09/01/16 835,000 900,756 MO State Development Finance Board, Procter & Gamble Co., Series 1999, 5.200% 03/15/29 250,000 245,022 ------------ 1,622,830 ------------ -------------------------------------------------------------------------------- OTHER - 5.8% OTHER - 0.2% SC Tobacco Settlement Revenue Management Authority, Series 2001 B, 6.375% 05/15/28 400,000 400,568 ------------ POOL/BOND BANK - 0.8% FL State Municipal Loan Council, Series 2000 A, (a) 04/01/21 520,000 190,278 KS State Development Finance Authority, Water Pollution Control, 5.500% 11/01/17 1,125,000 1,220,299 ------------ 1,410,577 ------------ REFUNDED/ESCROWED (f) - 4.8% CA Contra Costa County Public Financing Authority, Series 1992 A, 7.100% 08/01/22 635,000 653,644 CA San Joaquin Hills Transportation Corridor Agency, Series 1993, (a) 01/01/23 5,250,000 1,721,895 CA State, Series 1995, 5.750% 03/01/19 1,930,000 2,122,325 See notes to investment portfolio. 3 MUNICIPAL BONDS - 98.3% (continued) PAR VALUE ------------ ------------ CA State Educational Facilities Authority, Santa Clara University, Series 1996, 5.000% 09/01/15 $ 800,000 $ 889,368 CO Denver City and County Airport, Series 1992 B, 7.250% 11/15/23 205,000 213,993 DE State Economic Development Authority, Riverside Hospital, Series 1992 A, 9.500% 01/01/22 215,000 246,530 MN Mille Lacs Capital Improvement Authority, Mille Lacs Band of Chippewa, Series 1992 A, 9.250% 11/01/12 210,000 222,298 NC Lincoln County, Lincoln County Hospital, 9.000% 05/01/07 105,000 122,063 NC State Municipal Power Agency, Catawba No. 1, Series 1986, 5.000% 01/02/20 1,670,000 1,697,355 TN Shelby County, Health, Education & Housing Facilities Board, Open Arms Development Center: Series 1992 A, 9.750% 08/01/19 435,000 554,625 Series 1992 C, 9.750% 08/01/19 435,000 554,625 ------------ 8,998,721 ------------ -------------------------------------------------------------------------------- OTHER REVENUE - 0.8% RECREATION - 0.8% DC District of Columbia, Smithsonian Institute, Series 1997, 5.000% 02/01/28 1,000,000 954,600 FL Capital Trust Agency, Seminole Tribe Convention Center, Series 2002 A, 10.000% 10/01/33 500,000 498,750 ------------ 1,453,350 ------------ -------------------------------------------------------------------------------- RESOURCE RECOVERY - 1.2% DISPOSAL - 1.2% IL Development Finance Authority, Waste Management, Inc., Series 1997, 5.050% 01/01/10 500,000 477,375 MA State Industrial Finance Agency, Peabody Monofill Associates, Inc., Ogden Haverhill Project: Series 1995, 9.000% 09/01/05 145,000 152,794 Series 1998 A, 5.450% 12/01/12 1,250,000 1,038,100 MI State Strategic Fund, United Waste Systems, Inc., Series 1995, 5.200% 04/01/10 $ 500,000 $ 484,495 ------------ 2,152,764 ------------ -------------------------------------------------------------------------------- TAX-BACKED - 39.2% LOCAL APPROPRIATED - 1.6% MN Hibbing Economic Development Authority, 6.400% 02/01/12 335,000 340,444 MO St. Louis Industrial Development Authority, St. Louis Convention Center, Series 2000, (a) 07/15/18 300,000 131,535 TX Houston Independent School District, Public Facilities Corp., Series 1998 A, (a) 09/15/13 2,500,000 1,444,275 TX Houston, Series 2000, 6.400% 06/01/27 1,000,000 1,104,040 ------------ 3,020,294 ------------ LOCAL GENERAL OBLIGATIONS - 17.8% AK North Slope Borough, Series 2001 A, (a) 06/30/12 2,000,000 1,231,420 CA Carlsbad Unified School District, (a) 05/01/22 2,730,000 914,031 CA Las Virenes Unified School District, Series 2001 C, (a) 11/01/22 1,210,000 394,145 CA Los Angeles County, Series 1999 A, (a) 08/01/21 2,135,000 746,844 CA Modesto High School District, Stanislaus County, Capital Appreciation, Series 2002 A, (a) 08/01/19 1,350,000 545,400 CA West Contra Costa Unified School District, Series 2001 B, 6.000% 08/01/24 250,000 283,610 CO El Paso County School District No. 11, Colorado Springs, Series 1996, 7.125% 12/01/19 1,870,000 2,366,672 CO Highlands Ranch Metropolitan District, Series 1996, 6.500% 06/15/11 1,375,000 1,619,860 IL Chicago: Series 1995 A-2, 6.250% 01/01/14 1,480,000 1,710,303 Series 1999, 5.500% 01/01/23 1,000,000 1,054,500 Series 2001 A, (a) 01/01/15 3,000,000 1,584,060 See notes to investment portfolio. 4 MUNICIPAL BONDS - 98.3% (continued) PAR VALUE ------------ ------------ IL Chicago Board of Education, Series 1998 B-1: (a) 12/01/11 $ 1,000,000 $ 640,790 (a) 12/01/21 2,000,000 671,480 IL St. Clair County, Series 1999, (a) 10/01/16 2,000,000 956,900 IL St. Clair County Public Building Commission, (a) 12/01/13 2,000,000 1,148,760 IL Will County School District No. 17, Series 2001, 8.500% 12/01/15 1,400,000 1,921,374 MI Chippewa Valley Schools, Series 1998, 4.750% 05/01/23 2,000,000 1,873,380 MI Garden City School District, Series 2001, 5.500% 05/01/16 325,000 345,940 MI St. Johns Public School, Series 1998, 5.100% 05/01/25 1,000,000 1,001,300 NY New York City, Series 1997 A, 7.000% 08/01/07 2,000,000 2,300,940 OH Olmsted Falls School District, Series 1999, 5.500% 12/01/02 380,000 386,627 PA Erie, Series 2001 C, (a) 11/15/26 2,000,000 513,220 TX Brenham, Certificates of Obligation, Series 2001, 5.375% 08/15/16 1,040,000 1,092,686 TX Houston Independent School District, Series 1999 A, 4.750% 02/15/22 5,000,000 4,665,850 TX Hurst Euless Bedford Independent School District, Series 1998, 4.500% 08/15/25 2,500,000 2,189,175 TX La Joya Independent School District, Series 1998, 5.500% 02/15/12 1,000,000 1,060,590 ------------ 33,219,857 ------------ SPECIAL NON-PROPERTY TAX - 4.7% CA San Diego Redevelopment Agency, Capital Appreciation Tax Allocation Center, Series 2001, (a) 09/01/21 3,725,000 1,296,114 CT State Special Tax Obligation Infrastructure, Series 2001 A, 5.375% 10/01/16 500,000 530,270 FL Tampa Sports Authority, Tampa Bay Arena Project, Series 1995, 5.750% 10/01/25 1,000,000 1,096,690 NM Dona Ana County, Series 1998, 5.500% 06/01/15 $ 1,000,000 $ 1,091,430 NY New York City Transitional Finance Authority, Series 1998 C, 4.750% 05/01/23 2,000,000 1,857,080 NY State Local Government Assistance Corp., Series 1993 E, 5.000% 04/01/21 3,000,000 3,014,370 ------------ 8,885,954 ------------ SPECIAL PROPERTY TAX - 0.4% CA Contra Costa County Public Financing Authority, Series 1992 A, 7.100% 08/01/22 365,000 373,004 CA Huntington Beach Community Facilities District, Grand Coast Resort, Series 2001, 6.450% 09/01/31 300,000 302,625 FL Lexington Oaks Community Development District, Series 1998 B, 5.500% 05/01/05 20,000 20,075 ------------ 695,704 ------------ STATE APPROPRIATED - 8.3% IN State Office Building Commission, Women's Prison, Series 1995 B, 6.250% 07/01/16 2,820,000 3,279,124 KY State Property & Buildings Commission, Project No. 73, Series 2001, 5.500% 11/01/14 455,000 492,501 NY New York State Dormitory Authority: City University, Series 1993 A, 5.750% 07/01/18 5,000,000 5,581,650 Mental Health Services: Series 1998 C, 5.000% 02/15/11 1,485,000 1,556,443 Series 2000 C, 5.750% 05/15/17 1,000,000 1,121,030 NY State Urban Development Corp., 5.600% 04/01/15 1,000,000 1,103,200 UT State Building Ownership Authority, Facilities Master Lease, Series 1998 C, 5.500% 05/15/19 1,750,000 1,878,310 WV State Building Commission, Series 1998 A, 5.375% 07/01/18 500,000 530,890 ------------ 15,543,148 ------------ STATE GENERAL OBLIGATIONS - 6.4% CA State, Series 1995, 5.750% 03/01/19 70,000 72,193 DC District of Columbia, Series 1999 A, 5.375% 06/01/18 1,250,000 1,318,412 See notes to investment portfolio. 5 MUNICIPAL BONDS - 98.3% (continued) PAR VALUE ------------ ------------ MA State, Series 1998 C, 5.250% 08/01/17 $ 1,000,000 $ 1,063,590 NJ State, Series 2001, 5.250% 07/01/16 2,000,000 2,133,580 PR Commonwealth of Puerto Rico: Aqueduct & Sewer Authority: 6.250% 07/01/12 1,000,000 1,176,970 6.250% 07/01/13 750,000 887,295 Series 2001, 5.500% 07/01/17 1,000,000 1,103,980 TX State, Series 1999 ABC, 5.500% 08/01/35 2,000,000 2,030,820 WA State, Series 1998 A, 4.500% 07/01/23 2,340,000 2,098,723 ------------ 11,885,563 ------------ -------------------------------------------------------------------------------- TRANSPORTATION - 12.5% Air Transportation - 1.8% CA Los Angeles Regional Airport Improvement Corp., Series 2002 C, 7.500% 12/01/24 750,000 731,250 IL Chicago O'Hare International Airport, United Airlines, Inc., Series 2000 A, 6.750% 11/01/11 800,000 414,000 KY Kenton County Airport Board, Delta Airlines, Inc., Series 1992 A, 7.500% 02/01/20 200,000 198,964 MN Minneapolis & St. Paul Metropolitan Airport Commission, Northwest Airlines, Inc., Series 2001 A, 7.000% 04/01/25 350,000 314,125 NC Charlotte, US Airways, Inc.: Series 1998, 5.600% 07/01/27 500,000 253,125 Series 2000, 7.750% 02/01/28 500,000 273,125 NY Port Authority of New York & New Jersey, JFK International Air Terminal, Series 1997 6, 6.250% 12/01/08 1,000,000 1,128,950 ------------ 3,313,539 ------------ Airports - 2.9% CO Denver City & County Airport: Series 1997 E, 5.250% 11/15/23 110,000 110,131 Series 1997 B, 7.250% 11/15/23 795,000 824,161 MA State Port Authority: Series 1998 D, 5.000% 07/01/28 $ 2,500,000 $ 2,400,675 Series 1999, 9.640% 07/01/29 (e) 1,000,000 1,092,180 MN Minneapolis-St. Paul Metropolitan Airport Commission, Series 1998 13, 5.250% 01/01/13 1,000,000 1,044,510 ------------ 5,471,657 ------------ Ports - 0.9% FL Gulf Breeze, Series 1998 B, 4.500% 10/01/27 2,000,000 1,785,620 ------------ Toll Facilities - 4.8% CA Foothill/Eastern Transportation Corridor Agency, Series 1995 A, 5.000% 01/01/35 1,000,000 903,630 CA San Joaquin Hills Transportation Corridor Agency, Series 1997 A, (a) 01/15/15 2,000,000 1,080,240 CO State Public Highway Authority, E-470, Series 1997 B, (a) 09/01/11 2,000,000 1,304,920 MA State Turnpike Authority, Series 1999 A: 4.750% 01/01/34 1,850,000 1,666,036 5.000% 01/01/39 2,000,000 1,875,880 NH State Turnpike Systems, Series 1991 C, IFRN (variable rate), 11.870% 11/01/17 1,000,000 1,273,480 PA State Turnpike Commission, Oil Franchise Tax Revenue, Series 1998 A, 4.750% 12/01/27 1,000,000 923,040 ------------ 9,027,226 ------------ TRANSPORTATION - 2.1% CA San Mateo County Transportation District, Series 1998 A, 4.500% 06/01/18 1,000,000 962,430 IL Regional Transportation Authority, Series 1994 C, 7.750% 06/01/20 1,000,000 1,333,950 NV State Department of Business & Industry, Las Vegas Monorail Project, Series 2000: 7.375% 01/01/40 250,000 243,125 7.380% 01/20/30 250,000 245,000 OH Toledo-Lucas County Port Authority, CSX Transportation, Inc., Series 1992, 6.450% 12/15/21 1,000,000 1,056,680 ------------ 3,841,185 ------------ See notes to investment portfolio. 6 MUNICIPAL BONDS - 98.3% (continued) PAR VALUE ------------ ------------ UTILITY - 13.5% INDEPENDENT POWER PRODUCER - 0.6% MI Midland County Economic Development Corp., series 2000, 6.875% 07/23/09 $ 500,000 $ 519,375 NY New York City Industrial Development Agency, Brooklyn Navy Yard Partners, Series 1997, 5.650% 10/01/28 200,000 195,036 PR Commonwealth of Puerto Rico Industrial, Educational, Medical & Environmental Cogeneration Facilities, AES Project, Series 2000, 6.625% 06/01/26 325,000 336,684 ------------ 1,051,095 ------------ Investor Owned - 5.1% IN Petersburg, Indiana Power & Light Co., Series 1993 B, 5.400% 08/01/17 3,000,000 3,202,170 MI State Strategic Fund, Detroit Edison Co., Series 1998 A, 5.550% 09/01/29 3,000,000 3,033,900 MS State Business Finance Corp., Systems Energy Resources Project, Series 1998, 5.875% 04/01/22 1,000,000 957,500 TX Brazos River Authority, Pollution Control, Series 2001, 5.750% 05/01/36 500,000 501,885 TX Matagorda County Navigation District No. 1, Houston Light & Power Co., Series 1997, 5.125% 11/01/28 2,000,000 1,899,260 ------------ 9,594,715 ------------ JOINT POWER AUTHORITY - 2.4% IN State Municipal Power Agency, Series 1993 B 6.000% 01/01/12 2,000,000 2,262,980 MA Municipal Wholesale Electric Co., Power Supply System, Project 6-A, 5.250% 07/01/14 1,000,000 1,054,800 NC State Municipal Power Agency, Catawba Electric No. 1, Series 1998 A, 5.500% 01/01/15 640,000 695,174 OH Municipal Electricity Generation Agency, Series 2001: (a) 02/15/25 1,000,000 294,320 (a) 02/15/30 1,000,000 221,810 ------------ 4,529,084 ------------ MUNICIPAL ELECTRIC - 1.3% NC University of North Carolina at Chapel Hill, (a) 08/01/14 1,000,000 554,230 NE Public Power District, Series 1998 A, 5.250% 01/01/11 $ 500,000 $ 531,115 TN Metropolitan Government, Nashville & Davidson Counties, Series 1996 A, (a) 05/15/09 1,825,000 1,359,370 ------------ 2,444,715 ------------ WATER & SEWER - 4.1% GA Atlanta, Series 1993, 5.500% 11/01/22 (g) 1,000,000 1,070,120 MA State Water Resources Authority: Series 1998 A, 4.750% 08/01/27 3,000,000 2,769,570 Series 1998 B, 4.500% 08/01/22 500,000 455,515 MS Five Lakes Utility District, 8.250% 07/15/24 140,000 129,675 NY NYC Municipal Water Finance Authority, Water & Sewer System, Capital Appreciation, Series 1998 D, (a) 06/15/20 3,900,000 1,544,868 WA King County, Series 1999, 5.250% 01/01/30 1,750,000 1,719,883 ------------ 7,689,631 ------------ TOTAL MUNICIPAL BONDS (cost of $176,927,914) 183,686,989 ------------ MUNICIPAL PREFERRED STOCK - 0.3% SHARES ------------ HOUSING - 0.3% MULTI-FAMILY - 0.3% Charter Mac Equity Issue Trust, 7.600% 11/30/50 500,000 531,875 ------------ (cost of $500,000) (h) SHORT-TERM OBLIGATIONS - 0.3% PAR ------------ VARIABLE RATE DEMAND NOTES (i) - 0.3% IA State Higher Education Loan Authority, St. Ambrose University, Series 1999, 1.150% 10/01/09 $ 300,000 300,000 MN Maple Grove, Multifamily Revenue, Series 1991 B, 1.100% 11/01/17 200,000 200,000 MN Minneapolis, Convention Center, Series 2000, 1.000% 12/01/18 100,000 100,000 ------------ TOTAL SHORT-TERM OBLIGATIONS (cost of $600,000) 600,000 ------------ TOTAL INVESTMENTS - 98.9% (cost of $178,027,914) (j) 184,818,864 ------------ OTHER ASSETS & LIABILITIES, NET - 1.1% 1,993,681 ------------ NET ASSETS* - 100.0% $186,812,545 ------------ See notes to investment portfolio. 7 NOTES TO INVESTMENT PORTFOLIO: (a) Zero coupon bond. (b) Settlement of this security is on a delayed delivery basis. (c) This issuer is in default of certain debt covenants. Income is not being fully accrued. (d) Accrued interest accumulates in the value of the security and is payable at redemption. (e) These securities are exempt from registration under Rule 144A of the Securities Act of 1933 and may be resold in transactions exempt from registration, normally to qualified institutional buyers. At May 31, 2002, the value of these securities amounted to $1,679,498, which represented 0.9% of net assets. (f) The Trust has been informed that each issuer has placed direct obligations of the U.S. Government in an irrevocable trust, solely for the payment of principal and interest. (g) This security, or a portion thereof with a market value of $379,893, is being used to collateralize open futures contracts. (h) Denotes a restricted security, which is subject to restrictions on resale under federal securities laws. At May 31, 2002, this security amounted to $531,875, which represents 0.3% of net assets. Additional information on this restricted security is as follows: ACQUISITION ACQUISITION SECURITY DATE COST -------- ------------ ------------ Charter Mac Equity Issue Trust, 7.600%, 11/30/50 07/06/00 $ 500,000 (i) Variable rate demand notes are considered short-term obligations. Interest rates change periodically on specified dates. These securities are payable on demand and are secured by either letters of credit or other credit support agreements from banks. The rates listed are as of May 31, 2002. (j) Cost for generally accepted accounting principles is $178,027,914. Cost for federal income tax purposes is $177,823,697. The difference between cost for generally accepted accounting principles and cost on a tax basis is related to amortization/accretion tax elections on fixed income securities. Short futures contracts open at May 31, 2002: PAR VALUE UNREALIZED COVERED BY EXPIRATION APPRECIATION TYPE CONTRACTS MONTH (DEPRECIATION) ---- ---------- ---------- ------------- Municipal Bond Index $5,700,000 September $ (17,524) 10 Year U.S. Treasury Note 7,200,000 September (51,848) 30 Year U.S. Treasury Bond 6,700,000 September 21,865 ------------ $ (47,507) ------------ ACRONYM NAME ------- -------------------------- IFRN Inverse Floating Rate Note * Net assets represent both Common Shares and Auction Preferred Shares. See notes to financial statements. 8 STATEMENT OF ASSETS AND LIABILITIES May 31, (Unaudited) ASSETS: Investments, at cost $ 178,027,914 -------------- Investments, at value $ 184,818,864 Receivable for: Investments sold 711,664 Interest 2,906,973 Futures variation margin 19,971 Deferred Trustees' compensation plan 5,480 -------------- Total Assets 188,462,952 -------------- LIABILITIES: Payable due to custodian bank 705,545 Payable for: Investments purchased on a delayed delivery basis 146,006 Distributions -- common shares 644,504 Distributions -- preferred shares 10,878 Management fee 101,658 Pricing and bookkeeping fees 9,570 Trustees' fee 13 Deferred Trustees' fee 5,480 Other liabilities 26,753 -------------- Total Liabilities 1,650,407 -------------- Auction Preferred Shares (2,400 shares issued and outstanding at $25,000 per share) 60,000,000 -------------- COMPOSITION OF NET ASSETS APPLICABLE TO COMMON SHARES: Paid-in capital -- common shares $ 126,993,094 Undistributed net investment income 381,940 Accumulated net realized loss (7,305,932) Net unrealized appreciation (depreciation) on: Investments 6,790,950 Futures contracts (47,507) -------------- Net assets at value applicable to 11,509,000 common shares of beneficial interest outstanding $ 126,812,545 ============== Net asset value per common share $ 11.02 ============== STATEMENTS OF OPERATIONS Fot the six Months Ended May 31, 2002 (Unaudited) INVESTMENT INCOME: Interest $ 5,295,823 -------------- EXPENSES: Management fee 601,524 Pricing and bookkeeping fees 47,703 Trustees' fee 6,244 Preferred shares remarketing commissions 74,880 Other expenses 77,855 -------------- Total Expenses 808,206 Custody earnings credit (509) -------------- Net Expenses 807,697 -------------- Net Investment Income 4,488,126 -------------- NET REALIZED AND UNREALIZED GAIN (LOSS) ON INVESTMENTS AND FUTURES CONTRACTS: Net realized gain (loss) on: Investments (321,916) Futures contracts 392,809 -------------- Net realized gain 70,893 -------------- Net change in unrealized appreciation/ depreciation on: Investments (208,036) Futures contracts (491,602) -------------- Net change in unrealized appreciation/depreciation (699,638) -------------- Net Loss (628,745) -------------- Net Increase in Net Assets from Operations 3,859,381 -------------- LESS DISTRIBUTIONS DECLARED TO PREFERRED SHAREHOLDERS: From net investment income (453,005) -------------- Increase in Net Assets from Operations Applicable to Common Shares $ 3,406,376 -------------- See notes to financial statements. 9 STATEMENT OF CHANGES IN NET ASSETS (UNAUDITED) SIX MONTHS ENDED YEAR ENDED MAY 31, NOVEMBER 30, INCREASE (DECREASE) IN NET ASSETS: 2002 2001 ---------------------------------- -------------- -------------- OPERATIONS: Net investment income $ 4,488,126 $ 8,682,715 Net realized gain on investments and futures contracts 70,893 1,614,053 Net change in unrealized appreciation/depreciation on investments and futures contracts (699,638) 4,304,408 ------------- ------------- Net Increase from Operations 3,859,381 14,601,176 ------------- ------------- LESS DISTRIBUTIONS DECLARED TO PREFERRED SHAREHOLDERS: From net investment income (453,005) (1,811,142) ------------- ------------- Increase in Net Assets from Operations Applicable to Common Shares 3,406,376 12,790,034 ------------- ------------- LESS DISTRIBUTIONS DECLARED TO COMMON SHAREHOLDERS: From net investment income (3,867,024) (6,882,385) ------------- ------------- Total Increase (Decrease) in Net Assets Applicable to Common Shares (460,648) 5,907,649 ------------- ------------- NET ASSETS APPLICABLE TO COMMON SHARES: Beginning of period 127,273,193 121,365,544 ------------- ------------- End of period (including undistributed net investment income of $381,940 and $44,867, respectively) $ 126,812,545 $ 127,273,193 ============= ============= NUMBER OF FUND SHARES: Common Shares: Outstanding at end of period 11,509,000 11,509,000 ------------- ------------- Preferred Shares: Outstanding at end of period 2,400 2,400 ------------- ------------- See notes to financial statements. 10 NOTES TO FINANCIAL STATEMENTS May 31, 2002 (Unaudited) NOTE 1. ACCOUNTING POLICIES ORGANIZATION: Colonial Investment Grade Municipal Trust (the "Trust"), is a Massachusetts business trust registered under the Investment Company Act of 1940 (the "Act"), as amended, as a diversified, closed-end, management investment company. The Trust's investment goal is to seek as high a level of after-tax total return as is consistent with prudent risk, by pursuing current income generally exempt from ordinary federal income tax and opportunities for long-term appreciation from a portfolio primarily invested in investment grade municipal bonds. The Trust is authorized to issue an unlimited number of common shares of beneficial interest and 2,400 Auction Preferred Shares ("APS"). The preparation of financial statements in conformity with generally accepted accounting principles requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenue and expenses during the reporting period. Actual results could differ from those estimates. The following is a summary of significant accounting policies consistently followed by the Trust in the preparation of its financial statements. SECURITY VALUATION AND TRANSACTIONS: Debt securities generally are valued by a pricing service based upon market transactions for normal, institutional-size trading units of similar securities. When management deems it appropriate, an over-the-counter or exchange bid quotation is used. Options are valued at the last reported sale price, or in the absence of a sale, the mean between last quoted bid and asking price. Futures contracts are valued based on the difference between the last sale price and the opening price of the contract. Short-term obligations with a maturity of 60 days or less are valued at amortized cost. Investments for which market quotations are not readily available are valued at fair value under procedures approved by the Board of Trustees. Security transactions are accounted for on the date the securities are purchased, sold or mature. Cost is determined and gains (losses) are based upon the specific identification method for both financial statement and federal income tax purposes. The Trust may trade securities on other than normal settlement terms. This may increase the risk if the other party to the transaction fails to deliver and causes the Trust to subsequently invest at less advantageous prices. FEDERAL INCOME TAXES: Consistent with the Trust's policy to qualify as a regulated investment company and to distribute all of its taxable and tax-exempt income, no federal income tax has been accrued. At November 30, 2001, capital loss carryforwards available (to the extent provided in regulations) to offset future realized gains were as follows: YEAR OF EXPIRATION CAPITAL LOSS CARRYFORWARD ------------------ ------------------------- 2003 $ 172,808 2004 1,454,485 2008 3,464,384 ----------- $ 5,091,677 =========== Expired capital loss carryforwards, if any, are recorded as a reduction of paid-in capital. INTEREST INCOME, DEBT DISCOUNT AND PREMIUM: Interest income is recorded on the accrual basis. Original issue discount is accreted to interest income over the life of the security with a corresponding increase in the cost basis. Premium is amortized against interest income with a corresponding decrease in the cost basis. Effective December 1, 2001, the Trust adopted the provisions of the AICPA Audit and Accounting Guide for Investment Companies and began accreting discount on all debt securities. The cumulative effect of this accounting change did not impact total net assets, but resulted in a $168,976 increase in cost of securities and a corresponding $168,976 decrease in net unrealized appreciation, based on securities held by the Trust on December 1, 2001. The effect of this change for the six months ended May 31, 2002 was to increase net investment income by $36,781, decrease net unrealized appreciation by $35,241, and increase net realized loss by $1,540. The Statement of Changes in Net Assets and the Financial Highlights for prior periods have not been restated to reflect this change. DISTRIBUTIONS TO SHAREHOLDERS: Distributions to common shareholders are recorded on the ex-date. The amount and character of income and gains to be distributed are determined in accordance with income tax regulations, which may differ from generally accepted accounting principles. Reclassifications are made to the Trust's capital accounts to reflect income and gains available for distribution (or available capital loss carryforwards) under income tax regulations. Distributions to preferred shareholders are recorded daily and are payable at the end of each dividend period. Each dividend payment period for the APS is generally seven days. The applicable dividend rate for the APS on May 31, 2002 was 1.60%. For the six months ended May 31, 2002, the Trust declared dividends to Auction Preferred shareholders amounting to $453,005 representing an average APS dividend rate for such period of 1.52%. NOTE 2. FEE AND COMPENSATION PAID TO AFFILIATES MANAGEMENT FEE: Colonial Management Associates, Inc. (the "Advisor") is the investment advisor of the Trust and furnishes accounting and other services and office facilities for a monthly fee equal to 0.65% annually of the Trust's average weekly net assets. 11 BOOKKEEPING FEE: The Advisor is responsible for providing pricing and bookkeeping services to the Trust under a Pricing and Bookkeeping Agreement. Under a separate agreement (the "Outsourcing Agreement"), the Advisor has delegated those functions to State Street Bank and Trust Company ("State Street"). The Advisor pays fees to State Street under the Outsourcing Agreement. Under its pricing and bookkeeping agreement with the Trust, the Advisor receives from the Trust an annual flat fee of $10,000, paid monthly, and in any month that the Trust's average weekly net assets are more than $50 million, a monthly fee equal to the average weekly net assets of the Trust for that month multiplied by a fee rate that is calculated by taking into account the fees payable to State Street under the Outsourcing Agreement. OTHER: The Trust pays no compensation to its officers, all of whom are employees of the Advisor or its affiliates. The Trust's Independent Trustees may participate in a deferred compensation plan which may be terminated at any time. Obligations of the plan will be paid solely out of the Trust's assets. The Trust has an agreement with its custodian bank under which $509 of custody fees were reduced by balance credits for the six months ended May 31, 2002. The Trust could have invested a portion of the assets utilized in connection with the expense offset arrangement in an income-producing asset if it had not entered into such an agreement. NOTE 3. PREFERRED SHARE OFFERING The Trust currently has outstanding 2,400 APS. The APS are redeemable at the option of the Trust on any dividend payment date at the redemption price of $25,000 per share, plus an amount equal to any dividends accumulated on a daily basis unpaid through the redemption date (whether or not such dividends have been declared). Under the Act, the Trust is required to maintain asset coverage of at least 200% with respect to the APS as of the last business day of each month in which any APS are outstanding. Additionally, the Trust is required to meet more stringent asset coverage requirements under the terms of the APS and in accordance with the guidelines prescribed by the rating agencies. Should these requirements not be met, or should dividends accrued on the APS not be paid, the Trust may be restricted in its ability to declare dividends to common shareholders or may be required to redeem certain of the APS. At May 31, 2002, there were no such restrictions on the Trust. Certain reclassifications have been made relating to the presentation of the APS in the Statement of Changes in Net Assets for the year ending November 30, 2001 and the financial highlights for the year ending November 30, 2001 and 2000 to conform to current requirements. NOTE 4. PORTFOLIO INFORMATION INVESTMENT ACTIVITY: During the six months ended May 31, 2002, purchases and sales of investments, other than short-term obligations, were $4,838,991 and $6,020,190, respectively. Unrealized appreciation (depreciation) at May 31, 2002, based on cost of investments for federal income tax purposes, was: Gross unrealized appreciation $ 11,725,342 Gross unrealized depreciation (4,730,175) ------------- Net unrealized appreciation $ 6,995,167 ============= OTHER: The Trust had greater than 10% of its net assets at May 31, 2002, invested in New York, Texas and Massachusetts, collectively. There are certain risks arising from geographic concentration in any state. Certain revenue or tax related events in a state may impair the ability of certain issuers of municipal securities to pay principal and interest on their obligations. The Trust may focus its investments in certain industries, subjecting it to greater risk than a trust that is more diversified. The Trust may invest in municipal and Treasury bond futures contracts and purchase and write options on futures. The Trust may invest in these instruments to hedge against the effects of changes in the value of portfolio securities due to anticipated changes in interest rates and/or market conditions, for duration management, or when the transactions are economically appropriate to the reduction of risk inherent in the management of the Trust and not for trading purposes. The use of futures contracts and options involves certain risks, which include (1) imperfect correlation between the price movement of the instruments and the underlying securities, (2) inability to close out positions due to different trading hours, or the temporary absence of a liquid market, for either the instrument or the underlying securities or (3) an inaccurate prediction by the Advisor of the future direction of interest rates. Any of these risks may involve amounts exceeding the amount recognized in the Trust's Statement of Assets and Liabilities at any given time. Upon entering into a futures contract, the Trust deposits cash or securities with its custodian in an amount sufficient to meet the initial margin requirement. Subsequent payments are made or received by the Trust equal to the daily change in the contract value and are recorded as variation margin payable or receivable and offset in unrealized gains or losses. The Trust recognizes a realized gain or loss when the contract is closed or expires. Refer to the Trust's Investment Portfolio for a summary of open futures contracts at May 31, 2002. 12 FINANCIAL HIGHLIGHTS Selected data for a share outstanding throughout each period is as follows (common shares unless otherwise noted): (UNAUDITED) PERIOD SIX MONTHS ENDED YEAR ENDED NOVEMBER 30, ENDED MAY 31, ---------------------------- NOVEMBER 30, 2002 2001 2000 1999(a) ---------------- ----------- ----------- ------------ NET ASSET VALUE, BEGINNING OF PERIOD $ 11.06 $ 10.55 $ 10.31 $ 11.49 ---------------- ----------- ----------- ------------ INCOME FROM INVESTMENT OPERATIONS: Net investment income 0.35(b)(c) 0.75(c) 0.81(d) 0.58 Net realized and unrealized gain (loss) on investments and futures contracts (0.01)(b) 0.52 0.27 (1.12) ---------------- ----------- ----------- ------------ Total from Investment Operations 0.34 1.27 1.08 (0.54) ---------------- ----------- ----------- ------------ LESS DISTRIBUTIONS DECLARED TO PREFERRED SHAREHOLDERS: From net investment income (0.04) (0.16) (0.22) (0.05) ---------------- ----------- ----------- ------------ Total from Investment Operations Applicable to Common Shareholders 0.30 1.11 0.86 (0.59) ---------------- ----------- ----------- ------------ LESS DISTRIBUTIONS DECLARED TO COMMON SHAREHOLDERS: From net investment income (0.34) (0.60) (0.60) (0.52) In excess of net investment income -- -- -- -- ---------------- ----------- ----------- ------------ Total Distributions Declared to Common Shareholders (0.34) (0.60) (0.60) (0.52) ---------------- ----------- ----------- ------------ LESS CAPITAL TRANSACTIONS: Commissions and offering costs -- preferred shares -- -- (0.02) (0.07) ---------------- ----------- ----------- ------------ NET ASSET VALUE, END OF PERIOD $ 11.02 $ 11.06 $ 10.55 $ 10.31 ================ =========== =========== ============ Market price per share -- common shares $ 10.44 $ 10.87 $ 8.92 $ 9.06 ================ =========== =========== ============ Total return -- based on market value -- common shares (f) (0.83)%(g) 29.28% 5.20% (14.64)%(g) ================ =========== =========== ============ RATIOS TO AVERAGE NET ASSETS: Expenses (h)(i) 1.27%(j) 1.28% 1.31% 1.03%(j) Net investment income (h)(i) 7.17%(b)(j) 6.80% 7.91% 5.75%(j) Net investment income (h)(i) 6.45%(b)(j)(k) 5.38%(k) 5.80%(k) 5.26%(j)(k) Portfolio turnover rate 3%(g) 31% 23% 25%(g) Net assets, end of period (000's) -- common shares $ 126,813 $ 127,273 $ 121,366 $ 118,660 YEAR ENDED DECEMBER 31, 1998 ----------------------------------------------- 1998 1997 1996 ------------- ------------- ------------- NET ASSET VALUE, BEGINNING OF PERIOD $ 11.43 $ 10.87 $ 11.05 ------------ ------------ ------------- INCOME FROM INVESTMENT OPERATIONS: Net investment income 0.60 0.62 0.63 Net realized and unrealized gain (loss) on investments and futures contracts 0.07 0.58 (0.19) ------------ ------------ ------------- Total from Investment Operations 0.67 1.20 0.44 ------------ ------------ ------------- LESS DISTRIBUTIONS DECLARED TO PREFERRED SHAREHOLDERS: From net investment income -- -- -- ------------ ------------ ------------- Total from Investment Operations Applicable to Common Shareholders 0.67 1.20 0.44 ------------ ------------ ------------- LESS DISTRIBUTIONS DECLARED TO COMMON SHAREHOLDERS: From net investment income (0.61) (0.64) (0.62) In excess of net investment income --(e) -- -- ------------ ------------ ------------- Total Distributions Declared to Common Shareholders (0.61) (0.64) (0.62) ------------ ------------ ------------- LESS CAPITAL TRANSACTIONS: Commissions and offering costs -- preferred shares -- -- -- ------------ ------------ ------------- NET ASSET VALUE, END OF PERIOD $ 11.49 $ 11.43 $ 10.87 ============ ============ ============= Market price per share -- common shares $ 11.19 $ 10.56 $ 10.13 ============ ============ ============= Total return -- based on market value -- common shares (f) 11.94% 10.76% 9.06% ============ ============ ============= RATIOS TO AVERAGE NET ASSETS: Expenses (h)(i) 0.77% 0.83% 0.88% Net investment income (h)(i) 5.24% 5.63% 5.80% Net investment income (h)(i) 5.24% 5.63% 5.80% Portfolio turnover rate 24% 21% 20% Net assets, end of period (000's) -- common shares $ 132,242 $ 131,503 $ 125,125 (a) The Trust changed its fiscal year end from December 31 to November 30. (b) Effective December 1, 2001, the Trust adopted the provisions of the AICPA Audit and Accounting Guide for Investment Companies and began accreting discount on all debt securities. The effect of this change, for the six months ended May 31, 2002, was to increase the ratio of net investment income to average net assets from 7.11% to 7.17% and increase the ratio of net investment income (adjusted for dividend payments to preferred shareholders) from 6.39% to 6.45%. The impact to net investment income and net realized and unrealized loss per share was less than $0.01. Per share data and ratios for periods prior to May 31, 2002 have not been restated to reflect this change in presentation. (c) Per share data was calculated using average shares outstanding during the period. (d) The per share net investment income amount does not reflect the period's reclassification of differences between book and tax basis net investment income. (e) Rounds to less than $0.01 per share. (f) Total return at market value assuming all distributions reinvested at prices calculated in accordance with the Dividend Reinvestment Plan. (g) Not annualized. (h) The benefits derived from custody credits and directed brokerage arrangements, if applicable, had no impact. (i) Ratios reflect average net assets available to common shares only. (j) Annualized. (k) Ratios reflect reduction for dividend payments to preferred shareholders. 13 YEAR ENDED DECEMBER 31, ------------------------------------------------------- 1995 1994 1993 1992 ----------- ------------ ------------ ------------ NET ASSET VALUE, BEGINNING OF PERIOD $ 9.93 $ 11.05 $ 10.96 $ 11.09 ----------- ------------ ------------ ----------- INCOME FROM INVESTMENT OPERATIONS: Net investment income 0.64 0.67 0.79 0.85 Net realized and unrealized gain (loss) on investments and futures contracts 1.11 (1.12) 0.09 (0.13) ----------- ------------ ------------ ----------- Total Income from Investment Operations 1.75 (0.45) 0.88 0.72 ----------- ------------ ------------ ----------- LESS DISTRIBUTIONS DECLARED TO COMMON SHAREHOLDERS: From net investment income (0.63) (0.67) (0.79) (0.85) ----------- ------------ ------------ ----------- NET ASSET VALUE, END OF PERIOD $ 11.05 $ 9.93 $ 11.05 $ 10.96 ----------- ------------ ------------ ----------- Market price per share -- common shares $ 9.88 $ 9.25 $ 10.75 $ 11.75 =========== ============ ============ =========== Total return -- based on market value -- common shares (a) 13.87% (8.12)% (2.16)% 7.43% =========== ============ ============ =========== RATIOS TO AVERAGE NET ASSETS: Expenses (b) 1.08% 0.94% 0.87% 0.86% Net investment income (b) 6.08% 6.46% 7.08% 7.76% Portfolio turnover rate 37% 34% 35% 18% Net assets, end of period (000's) -- common shares $ 127,118 $ 114,260 $ 127,213 $ 126,169 (a) Total return at market value assuming all distributions reinvested at prices calculated in accordance with the Dividend Reinvestment Plan. (b) The benefits derived from custody credits and directed brokerage arrangements, if applicable, had no impact. ASSET COVERAGE REQUIREMENTS INVOLUNTARY ASSET LIQUIDATING AVERAGE TOTAL AMOUNT COVERAGE PREFERENCE MARKET VALUE OUTSTANDING PER SHARE PER SHARE PER SHARE ------------------------------------------------------------------------------------------------ 05/31/02* $ 60,000,000 $ 77,839 $ 25,005 $ 25,000 11/30/01 60,000,000 78,030 25,005 25,000 11/30/00 60,000,000 75,569 25,009 25,000 11/30/99** 60,000,000 74,444 25,003 25,000 * Unaudited. **On August 26, 1999, the Trust began offering Auction Preferred Shares. 14 SHAREHOLDER MEETING RESULTS RESULTS OF ANNUAL MEETING OF SHAREHOLDERS On May 22, 2002, the Annual Meeting of Shareholders of the Trust was held to conduct a vote for or against the approval of the following Items listed on the Trust's Proxy Statement for said Meeting. On March 1, 2002, the record date for the Meeting, the Trust had 11,509,000 common shares outstanding. The votes cast were as follows: FOR WITHHELD --- -------- PROPOSAL 1: ELECTION OF TRUSTEES: Richard W. Lowry 10,566,451 149,447 William E. Mayer 10,571,193 144,704 Anne-Lee Verville 10,565,568 150,330 On March 1, 2002, the record date for the Meeting, the Trust had 2,400 preferred shares outstanding. The votes cast were as follows: FOR WITHHELD --- -------- PROPOSAL 1: ELECTION OF TRUSTEES: Richard W. Lowry 2,045 0 Salvatore Macera 2,045 0 Charles Nelson 2,045 0 Thomas E. Stizel 2,045 0 Anne-Lee Verville 2,045 0 15 DIVIDEND REINVESTMENT PLAN As a shareholder in the Trust you are eligible to participate in the Dividend Reinvestment Plan. The Trust generally distributes net investment income monthly and capital gains annually. Under the Trust's Dividend Reinvestment Plan (the "Plan") all distributions will be reinvested automatically in additional shares of the Trust, unless the shareholder elects to receive cash or the shares are held in broker or nominee name and a reinvestment service is not provided by the broker or nominee. All cash distributions will be mailed by check directly to the record holder by the dividend paying agent. If the market price of the shares on the distribution payment date is equal to or greater than the net asset value, Plan participants will be issued shares at the higher of net asset value or 95% of the market price. The aggregate market value of the shares may constitute income to shareholders for federal income tax purposes. However, if the market price of the shares is less than the net asset value, shares will be bought as soon as practicable (but no more than 30 days after the distribution, except as may be required to comply with federal securities laws) in the open market for the accounts of Plan participants. If, during this purchase period, the market price surpasses the net asset value, the average per share price paid may exceed the net asset value of the shares, resulting in the acquisition of fewer shares than if the distribution had been in newly-issued shares. All Plan accounts receive written confirmations of all transactions. Shares purchased under the Plan are held in uncertificated form. Each shareholder's proxy includes shares purchased pursuant to the Plan. The automatic reinvestment of distributions does not relieve participants of any income tax payable on the distributions. Fees and expenses of the Plan other than brokerage charges are incurred on shares issued directly by the Trust. Participants will bear a pro-rata share of brokerage charges incurred on open market purchases. A Plan participant may terminate his or her participation by written notice to the Plan agent. The Plan may be amended or terminated on 30 days written notice to the Plan participants. All correspondence concerning the Plan should be directed to State Street Bank and Trust Company*, the Plan agent, by mail at P.O. Box 8200, Boston, MA 02266-8200 or by phone at 1-800-426-5523. * EquiServe Trust Company, N.A. currently serves as Agent under the Dividend Reinvestment Plan. 16 TRANSFER AGENT IMPORTANT INFORMATION ABOUT THIS REPORT The Transfer Agent for Colonial Investment Grade Municipal Trust is: EquiServe Trust Company, N.A. 150 Royall Street Canton, MA 02021 1-800-730-6001 The trust mails one shareholder report to each shareholder address. Shareholders can order additional reports by calling 800-345-6611. In addition, representatives at that number can provide shareholders information about the trust. Financial advisors who want additional information about the trust may speak to a representative at 800-426-3750. This report has been prepared for shareholders of Colonial Investment Grade Municipal Trust. COLONIAL INVESTMENT GRADE MUNICIPAL TRUST SEMIANNUAL REPORT 130-03/961J-0502(07/02) 02/1219