497 1 file002.txt COLUMBIA ACORN TRUST COLUMBIA ACORN FUND COLUMBIA ACORN USA COLUMBIA ACORN SELECT COLUMBIA ACORN INTERNATIONAL COLUMBIA ACORN INTERNATIONAL SELECT COLUMBIA THERMOSTAT FUND (EACH A "FUND" AND COLLECTIVELY, THE "FUNDS") SUPPLEMENT TO THE PROSPECTUSES DATED MAY 1, 2005 (THE "PROSPECTUSES") The Prospectuses are hereby supplemented with the following information relating to hypothetical investment and expense information: Hypothetical Investment and Expense Information The following supplemental hypothetical investment information provides additional information about the effect of the expenses of each Fund, including investment advisory fees and other Fund costs, on the Funds' returns over a 10-year period. The charts show the estimated expenses that would be charged on a hypothetical investment of $10,000 in each class of the Funds assuming a 5% return each year, the hypothetical year-end balance before expenses and the cumulative return after fees and expenses. The charts also assume that the annual expense ratios stay the same throughout the 10-year period, that all dividends and distributions are reinvested and that Class B shares convert to Class A shares after eight years. The annual expense ratio used for each Fund, which is the same as that stated in the Annual Fund Operating Expenses tables, is reflected in the charts and is net of any fee waiver or expense reimbursement. Your actual costs may be higher or lower. COLUMBIA ACORN FUND - A ANNUAL EXPENSE RATIO 1.10%
YEAR CUMULATIVE RETURN HYPOTHETICAL YEAR-END CUMULATIVE RETURN HYPOTHETICAL YEAR- ANNUAL BEFORE FEES AND BALANCE BEFORE AFTER FEES AND EXPENSES END BALANCE AFTER FEES AND EXPENSES FEES AND EXPENSES FEES AND EXPENSES EXPENSES 1 5.00% $9,896.25 3.90% $9,792.57 $680.70 2 10.25% $10,391.06 7.95% $10,174.49 $109.82 3 15.76% $10,910.62 12.16% $10,571.29 $114.10 4 21.55% $11,456.15 16.54% $10,983.57 $118.55 5 27.63% $12,028.95 21.08% $11,411.93 $123.18 6 34.01% $12,630.40 25.80% $11,857.00 $127.98 7 40.71% $13,261.92 30.71% $12,319.42 $132.97 8 47.75% $13,925.02 35.81% $12,799.88 $138.16 9 55.13% $14,621.27 41.10% $13,299.07 $143.54 10 62.89% $15,352.33 46.61% $13,817.73 $149.14 TOTAL GAIN BEFORE FEES AND EXPENSES $5,927.33 TOTAL GAIN AFTER FEES AND EXPENSES $4,392.73 TOTAL ANNUAL FEES AND EXPENSES $1,838.14
SUP-47/87602-0605 COLUMBIA ACORN FUND - B ANNUAL EXPENSE RATIO 1.79%
YEAR CUMULATIVE RETURN HYPOTHETICAL YEAR-END CUMULATIVE RETURN HYPOTHETICAL YEAR- ANNUAL BEFORE FEES AND BALANCE BEFORE AFTER FEES AND EXPENSES END BALANCE AFTER FEES AND EXPENSES FEES AND EXPENSES FEES AND EXPENSES EXPENSES 1 5.00% $10,500.00 3.21% $10,321.00 $181.87 2 10.25% $11,025.00 6.52% $10,652.30 $187.71 3 15.76% $11,576.25 9.94% $10,994.24 $193.74 4 21.55% $12,155.06 13.47% $11,347.16 $199.96 5 27.63% $12,762.82 17.11% $11,711.40 $206.37 6 34.01% $13,400.96 20.87% $12,087.34 $213.00 7 40.71% $14,071.00 24.75% $12,475.34 $219.84 8 47.75% $14,774.55 28.76% $12,875.80 $226.89 9 55.13% $15,513.28 33.78% $13,377.96 $144.40 10 62.89% $16,288.95 39.00% $13,899.70 $150.03 TOTAL GAIN BEFORE FEES AND EXPENSES $6,288.95 TOTAL GAIN AFTER FEES AND EXPENSES $3,899.70 TOTAL ANNUAL FEES AND EXPENSES $1,923.81
COLUMBIA ACORN FUND - C ANNUAL EXPENSE RATIO 1.90% YEAR CUMULATIVE RETURN HYPOTHETICAL YEAR-END CUMULATIVE RETURN HYPOTHETICAL YEAR- ANNUAL BEFORE FEES AND BALANCE BEFORE AFTER FEES AND EXPENSES END BALANCE AFTER FEES AND EXPENSES FEES AND EXPENSES FEES AND EXPENSES EXPENSES 1 5.00% $10,500.00 3.10% $10,310.00 $192.94 2 10.25% $11,025.00 6.30% $10,629.61 $198.93 3 15.76% $11,576.25 9.59% $10,959.13 $205.09 4 21.55% $12,155.06 12.99% $11,298.86 $211.45 5 27.63% $12,762.82 16.49% $11,649.13 $218.01 6 34.01% $13,400.96 20.10% $12,010.25 $224.76 7 40.71% $14,071.00 23.83% $12,382.57 $231.73 8 47.75% $14,774.55 27.66% $12,766.43 $238.92 9 55.13% $15,513.28 31.62% $13,162.18 $246.32 10 62.89% $16,288.95 35.70% $13,570.21 $253.96 TOTAL GAIN BEFORE FEES AND EXPENSES $6,288.95 TOTAL GAIN AFTER FEES AND EXPENSES $3,570.21 TOTAL ANNUAL FEES AND EXPENSES $2,222.11
COLUMBIA ACORN FUND - Z ANNUAL EXPENSE RATIO 0.79% YEAR CUMULATIVE RETURN HYPOTHETICAL YEAR-END CUMULATIVE RETURN HYPOTHETICAL YEAR- ANNUAL BEFORE FEES AND BALANCE BEFORE AFTER FEES AND EXPENSES END BALANCE AFTER FEES AND EXPENSES FEES AND EXPENSES FEES AND EXPENSES EXPENSES 1 5.00% $10,500.00 4.21% $10,421.00 $80.66 2 10.25% $11,025.00 8.60% $10,859.72 $84.06 3 15.76% $11,576.25 13.17% $11,316.92 $87.60 4 21.55% $12,155.06 17.93% $11,793.36 $91.29 5 27.63% $12,762.82 22.90% $12,289.86 $95.13 6 34.01% $13,400.96 28.07% $12,807.26 $99.13 7 40.71% $14,071.00 33.46% $13,346.45 $103.31 8 47.75% $14,774.55 39.08% $13,908.34 $107.66 9 55.13% $15,513.28 44.94% $14,493.88 $112.19 10 62.89% $16,288.95 51.04% $15,104.07 $116.91 TOTAL GAIN BEFORE FEES AND EXPENSES $6,288.95 TOTAL GAIN AFTER FEES AND EXPENSES $5,104.07 TOTAL ANNUAL FEES AND EXPENSES $977.94
COLUMBIA ACORN USA - A ANNUAL EXPENSE RATIO 1.41% YEAR CUMULATIVE RETURN HYPOTHETICAL YEAR-END CUMULATIVE RETURN HYPOTHETICAL YEAR- ANNUAL BEFORE FEES AND BALANCE BEFORE AFTER FEES AND EXPENSES END BALANCE AFTER FEES AND EXPENSES FEES AND EXPENSES FEES AND EXPENSES EXPENSES 1 5.00% $9,896.25 3.59% $9,763.36 $710.28 2 10.25% $10,391.06 7.31% $10,113.86 $140.13 3 15.76% $10,910.62 11.16% $10,476.95 $145.17 4 21.55% $11,456.15 15.15% $10,853.07 $150.38 5 27.63% $12,028.95 19.29% $11,242.70 $155.78 6 34.01% $12,630.40 23.57% $11,646.31 $161.37 7 40.71% $13,261.92 28.00% $12,064.41 $167.16 8 47.75% $13,925.02 32.60% $12,497.53 $173.16 9 55.13% $14,621.27 37.36% $12,946.19 $179.38 10 62.89% $15,352.33 42.29% $13,410.95 $185.82 TOTAL GAIN BEFORE FEES AND EXPENSES $5,927.33 TOTAL GAIN AFTER FEES AND EXPENSES $3,985.95 TOTAL ANNUAL FEES AND EXPENSES $2,168.63
COLUMBIA ACORN USA - B ANNUAL EXPENSE RATIO 2.09% YEAR CUMULATIVE RETURN HYPOTHETICAL YEAR-END CUMULATIVE RETURN HYPOTHETICAL YEAR- ANNUAL BEFORE FEES AND BALANCE BEFORE AFTER FEES AND EXPENSES END BALANCE AFTER FEES AND EXPENSES FEES AND EXPENSES FEES AND EXPENSES EXPENSES 1 5.00% $10,500.00 2.91% $10,291.00 $212.04 2 10.25% $11,025.00 5.90% $10,590.47 $218.21 3 15.76% $11,576.25 8.99% $10,898.65 $224.56 4 21.55% $12,155.06 12.16% $11,215.80 $231.10 5 27.63% $12,762.82 15.42% $11,542.18 $237.82 6 34.01% $13,400.96 18.78% $11,878.06 $244.74 7 40.71% $14,071.00 22.24% $12,223.71 $251.86 8 47.75% $14,774.55 25.79% $12,579.42 $259.19 9 55.13% $15,513.28 30.31% $13,031.02 $180.55 10 62.89% $16,288.95 34.99% $13,498.84 $187.04 TOTAL GAIN BEFORE FEES AND EXPENSES $6,288.95 TOTAL GAIN AFTER FEES AND EXPENSES $3,498.84 TOTAL ANNUAL FEES AND EXPENSES $2,247.11
COLUMBIA ACORN USA - C ANNUAL EXPENSE RATIO 2.19% YEAR CUMULATIVE RETURN HYPOTHETICAL YEAR-END CUMULATIVE RETURN HYPOTHETICAL YEAR- ANNUAL BEFORE FEES AND BALANCE BEFORE AFTER FEES AND EXPENSES END BALANCE AFTER FEES AND EXPENSES FEES AND EXPENSES FEES AND EXPENSES EXPENSES 1 5.00% $10,500.00 2.81% $10,281.00 $222.08 2 10.25% $11,025.00 5.70% $10,569.90 $228.32 3 15.76% $11,576.25 8.67% $10,866.91 $234.73 4 21.55% $12,155.06 11.72% $11,172.27 $241.33 5 27.63% $12,762.82 14.86% $11,486.21 $248.11 6 34.01% $13,400.96 18.09% $11,808.97 $255.08 7 40.71% $14,071.00 21.41% $12,140.81 $262.25 8 47.75% $14,774.55 24.82% $12,481.96 $269.62 9 55.13% $15,513.28 28.33% $12,832.71 $277.20 10 62.89% $16,288.95 31.93% $13,193.30 $284.98 TOTAL GAIN BEFORE FEES AND EXPENSES $6,288.95 TOTAL GAIN AFTER FEES AND EXPENSES $3,193.30 TOTAL ANNUAL FEES AND EXPENSES $2,523.70
COLUMBIA ACORN USA - Z ANNUAL EXPENSE RATIO 1.08% YEAR CUMULATIVE RETURN HYPOTHETICAL YEAR-END CUMULATIVE RETURN HYPOTHETICAL YEAR- ANNUAL BEFORE FEES AND BALANCE BEFORE AFTER FEES AND EXPENSES END BALANCE AFTER FEES AND EXPENSES FEES AND EXPENSES FEES AND EXPENSES EXPENSES 1 5.00% $10,500.00 3.92% $10,392.00 $110.12 2 10.25% $11,025.00 7.99% $10,799.37 $114.43 3 15.76% $11,576.25 12.23% $11,222.70 $118.92 4 21.55% $12,155.06 16.63% $11,662.63 $123.58 5 27.63% $12,762.82 21.20% $12,119.81 $128.43 6 34.01% $13,400.96 25.95% $12,594.90 $133.46 7 40.71% $14,071.00 30.89% $13,088.62 $138.69 8 47.75% $14,774.55 36.02% $13,601.70 $144.13 9 55.13% $15,513.28 41.35% $14,134.88 $149.78 10 62.89% $16,288.95 46.89% $14,688.97 $155.65 TOTAL GAIN BEFORE FEES AND EXPENSES $6,288.95 TOTAL GAIN AFTER FEES AND EXPENSES $4,688.97 TOTAL ANNUAL FEES AND EXPENSES $1,317.19
COLUMBIA ACORN SELECT - A ANNUAL EXPENSE RATIO 1.33% YEAR CUMULATIVE RETURN HYPOTHETICAL YEAR-END CUMULATIVE RETURN HYPOTHETICAL YEAR- ANNUAL BEFORE FEES AND BALANCE BEFORE AFTER FEES AND EXPENSES END BALANCE AFTER FEES AND EXPENSES FEES AND EXPENSES FEES AND EXPENSES EXPENSES 1 5.00% $9,896.25 3.67% $9,770.90 $702.65 2 10.25% $10,391.06 7.47% $10,129.49 $132.34 3 15.76% $10,910.62 11.42% $10,501.24 $137.19 4 21.55% $11,456.15 15.51% $10,886.64 $142.23 5 27.63% $12,028.95 19.75% $11,286.18 $147.45 6 34.01% $12,630.40 24.14% $11,700.38 $152.86 7 40.71% $13,261.92 28.70% $12,129.78 $158.47 8 47.75% $13,925.02 33.42% $12,574.95 $164.29 9 55.13% $14,621.27 38.32% $13,036.45 $170.32 10 62.89% $15,352.33 43.39% $13,514.88 $176.57 TOTAL GAIN BEFORE FEES AND EXPENSES $5,927.33 TOTAL GAIN AFTER FEES AND EXPENSES $4,089.88 TOTAL ANNUAL FEES AND EXPENSES $2,084.37
COLUMBIA ACORN SELECT - B ANNUAL EXPENSE RATIO 2.07% YEAR CUMULATIVE RETURN HYPOTHETICAL YEAR-END CUMULATIVE RETURN HYPOTHETICAL YEAR- ANNUAL BEFORE FEES AND BALANCE BEFORE AFTER FEES AND EXPENSES END BALANCE AFTER FEES AND EXPENSES FEES AND EXPENSES FEES AND EXPENSES EXPENSES 1 5.00% $10,500.00 2.93% $10,293.00 $210.03 2 10.25% $11,025.00 5.95% $10,594.58 $216.19 3 15.76% $11,576.25 9.05% $10,905.01 $222.52 4 21.55% $12,155.06 12.25% $11,224.52 $229.04 5 27.63% $12,762.82 15.53% $11,553.40 $235.75 6 34.01% $13,400.96 18.92% $11,891.92 $242.66 7 40.71% $14,071.00 22.40% $12,240.35 $249.77 8 47.75% $14,774.55 25.99% $12,598.99 $257.09 9 55.13% $15,513.28 30.61% $13,061.37 $170.64 10 62.89% $16,288.95 35.41% $13,540.73 $176.90 TOTAL GAIN BEFORE FEES AND EXPENSES $6,288.95 TOTAL GAIN AFTER FEES AND EXPENSES $3,540.73 TOTAL ANNUAL FEES AND EXPENSES $2,210.59
COLUMBIA ACORN SELECT - C ANNUAL EXPENSE RATIO 2.16% YEAR CUMULATIVE RETURN HYPOTHETICAL YEAR-END CUMULATIVE RETURN HYPOTHETICAL YEAR- ANNUAL BEFORE FEES AND BALANCE BEFORE AFTER FEES AND EXPENSES END BALANCE AFTER FEES AND EXPENSES FEES AND EXPENSES FEES AND EXPENSES EXPENSES 1 5.00% $10,500.00 2.84% $10,284.00 $219.07 2 10.25% $11,025.00 5.76% $10,576.07 $225.29 3 15.76% $11,576.25 8.76% $10,876.43 $231.69 4 21.55% $12,155.06 11.85% $11,185.32 $238.27 5 27.63% $12,762.82 15.03% $11,502.98 $245.03 6 34.01% $13,400.96 18.30% $11,829.66 $251.99 7 40.71% $14,071.00 21.66% $12,165.63 $259.15 8 47.75% $14,774.55 25.11% $12,511.13 $266.51 9 55.13% $15,513.28 28.66% $12,866.45 $274.08 10 62.89% $16,288.95 32.32% $13,231.85 $281.86 TOTAL GAIN BEFORE FEES AND EXPENSES $6,288.95 TOTAL GAIN AFTER FEES AND EXPENSES $3,231.85 TOTAL ANNUAL FEES AND EXPENSES $2,492.94
COLUMBIA ACORN SELECT - Z ANNUAL EXPENSE RATIO 1.07% YEAR CUMULATIVE RETURN HYPOTHETICAL YEAR-END CUMULATIVE RETURN HYPOTHETICAL YEAR- ANNUAL BEFORE FEES AND BALANCE BEFORE AFTER FEES AND EXPENSES END BALANCE AFTER FEES AND EXPENSES FEES AND EXPENSES FEES AND EXPENSES EXPENSES 1 5.00% $10,500.00 3.93% $10,393.00 $109.10 2 10.25% $11,025.00 8.01% $10,801.44 $113.39 3 15.76% $11,576.25 12.26% $11,225.94 $117.85 4 21.55% $12,155.06 16.67% $11,667.12 $122.48 5 27.63% $12,762.82 21.26% $12,125.64 $127.29 6 34.01% $13,400.96 26.02% $12,602.18 $132.29 7 40.71% $14,071.00 30.97% $13,097.44 $137.49 8 47.75% $14,774.55 36.12% $13,612.17 $142.90 9 55.13% $15,513.28 41.47% $14,147.13 $148.51 10 62.89% $16,288.95 47.03% $14,703.11 $154.35 TOTAL GAIN BEFORE FEES AND EXPENSES $6,288.95 TOTAL GAIN AFTER FEES AND EXPENSES $4,703.11 TOTAL ANNUAL FEES AND EXPENSES $1,305.65
COLUMBIA ACORN INTERNATIONAL - A ANNUAL EXPENSE RATIO 1.38% YEAR CUMULATIVE RETURN HYPOTHETICAL YEAR-END CUMULATIVE RETURN HYPOTHETICAL YEAR- ANNUAL BEFORE FEES AND BALANCE BEFORE AFTER FEES AND EXPENSES END BALANCE AFTER FEES AND EXPENSES FEES AND EXPENSES FEES AND EXPENSES EXPENSES 1 5.00% $9,896.25 3.62% $9,766.18 $707.42 2 10.25% $10,391.06 7.37% $10,119.72 $137.21 3 15.76% $10,910.62 11.26% $10,486.05 $142.18 4 21.55% $11,456.15 15.29% $10,865.65 $147.33 5 27.63% $12,028.95 19.46% $11,258.99 $152.66 6 34.01% $12,630.40 23.78% $11,666.56 $158.19 7 40.71% $13,261.92 28.26% $12,088.89 $163.91 8 47.75% $13,925.02 32.91% $12,526.51 $169.85 9 55.13% $14,621.27 37.72% $12,979.97 $175.99 10 62.89% $15,352.33 42.70% $13,449.84 $182.37 TOTAL GAIN BEFORE FEES AND EXPENSES $5,927.33 TOTAL GAIN AFTER FEES AND EXPENSES $4,024.84 TOTAL ANNUAL FEES AND EXPENSES $2,137.11
COLUMBIA ACORN INTERNATIONAL - B ANNUAL EXPENSE RATIO 2.12% YEAR CUMULATIVE RETURN HYPOTHETICAL YEAR-END CUMULATIVE RETURN HYPOTHETICAL YEAR- ANNUAL BEFORE FEES AND BALANCE BEFORE AFTER FEES AND EXPENSES END BALANCE AFTER FEES AND EXPENSES FEES AND EXPENSES FEES AND EXPENSES EXPENSES 1 5.00% $10,500.00 2.88% $10,288.00 $215.05 2 10.25% $11,025.00 5.84% $10,584.29 $221.25 3 15.76% $11,576.25 8.89% $10,889.12 $227.62 4 21.55% $12,155.06 12.03% $11,202.73 $234.17 5 27.63% $12,762.82 15.25% $11,525.37 $240.92 6 34.01% $13,400.96 18.57% $11,857.30 $247.86 7 40.71% $14,071.00 21.99% $12,198.79 $254.99 8 47.75% $14,774.55 25.50% $12,550.11 $262.34 9 55.13% $15,513.28 30.04% $13,004.43 $176.33 10 62.89% $16,288.95 34.75% $13,475.19 $182.71 TOTAL GAIN BEFORE FEES AND EXPENSES $6,288.95 TOTAL GAIN AFTER FEES AND EXPENSES $3,475.19 TOTAL ANNUAL FEES AND EXPENSES $2,263.24
COLUMBIA ACORN INTERNATIONAL - C ANNUAL EXPENSE RATIO 2.18% YEAR CUMULATIVE RETURN HYPOTHETICAL YEAR-END CUMULATIVE RETURN HYPOTHETICAL YEAR- ANNUAL BEFORE FEES AND BALANCE BEFORE AFTER FEES AND EXPENSES END BALANCE AFTER FEES AND EXPENSES FEES AND EXPENSES FEES AND EXPENSES EXPENSES 1 5.00% $10,500.00 2.82% $10,282.00 $221.07 2 10.25% $11,025.00 5.72% $10,571.95 $227.31 3 15.76% $11,576.25 8.70% $10,870.08 $233.72 4 21.55% $12,155.06 11.77% $11,176.62 $240.31 5 27.63% $12,762.82 14.92% $11,491.80 $247.09 6 34.01% $13,400.96 18.16% $11,815.87 $254.05 7 40.71% $14,071.00 21.49% $12,149.07 $261.22 8 47.75% $14,774.55 24.92% $12,491.68 $268.58 9 55.13% $15,513.28 28.44% $12,843.94 $276.16 10 62.89% $16,288.95 32.06% $13,206.14 $283.95 TOTAL GAIN BEFORE FEES AND EXPENSES $6,288.95 TOTAL GAIN AFTER FEES AND EXPENSES $3,206.14 TOTAL ANNUAL FEES AND EXPENSES $2,513.46
COLUMBIA ACORN INTERNATIONAL - Z ANNUAL EXPENSE RATIO 1.06% YEAR CUMULATIVE RETURN HYPOTHETICAL YEAR-END CUMULATIVE RETURN HYPOTHETICAL YEAR- ANNUAL BEFORE FEES AND BALANCE BEFORE AFTER FEES AND EXPENSES END BALANCE AFTER FEES AND EXPENSES FEES AND EXPENSES FEES AND EXPENSES EXPENSES 1 5.00% $10,500.00 3.94% $10,394.00 $108.09 2 10.25% $11,025.00 8.04% $10,803.52 $112.35 3 15.76% $11,576.25 12.29% $11,229.18 $116.77 4 21.55% $12,155.06 16.72% $11,671.61 $121.37 5 27.63% $12,762.82 21.31% $12,131.47 $126.16 6 34.01% $13,400.96 26.09% $12,609.45 $131.13 7 40.71% $14,071.00 31.06% $13,106.27 $136.29 8 47.75% $14,774.55 36.23% $13,622.65 $141.66 9 55.13% $15,513.28 41.59% $14,159.39 $147.24 10 62.89% $16,288.95 47.17% $14,717.27 $153.05 TOTAL GAIN BEFORE FEES AND EXPENSES $6,288.95 TOTAL GAIN AFTER FEES AND EXPENSES $4,717.27 TOTAL ANNUAL FEES AND EXPENSES $1,294.11
COLUMBIA ACORN INTERNATIONAL SELECT - A ANNUAL EXPENSE RATIO 1.98% YEAR CUMULATIVE RETURN HYPOTHETICAL YEAR-END CUMULATIVE RETURN HYPOTHETICAL YEAR- ANNUAL BEFORE FEES AND BALANCE BEFORE AFTER FEES AND EXPENSES END BALANCE AFTER FEES AND EXPENSES FEES AND EXPENSES FEES AND EXPENSES EXPENSES 1 5.00% $9,896.25 3.02% $9,709.64 $764.43 2 10.25% $10,391.06 6.13% $10,002.87 $195.15 3 15.76% $10,910.62 9.34% $10,304.95 $201.05 4 21.55% $11,456.15 12.64% $10,616.16 $207.12 5 27.63% $12,028.95 16.04% $10,936.77 $213.37 6 34.01% $12,630.40 19.54% $11,267.06 $219.82 7 40.71% $13,261.92 23.15% $11,607.33 $226.46 8 47.75% $13,925.02 26.87% $11,957.87 $233.30 9 55.13% $14,621.27 30.71% $12,318.99 $240.34 10 62.89% $15,352.33 34.65% $12,691.03 $247.60 TOTAL GAIN BEFORE FEES AND EXPENSES $5,927.33 TOTAL GAIN AFTER FEES AND EXPENSES $3,266.03 TOTAL ANNUAL FEES AND EXPENSES $2,748.64
COLUMBIA ACORN INTERNATIONAL SELECT - B ANNUAL EXPENSE RATIO 2.77% YEAR CUMULATIVE RETURN HYPOTHETICAL YEAR-END CUMULATIVE RETURN HYPOTHETICAL YEAR- ANNUAL BEFORE FEES AND BALANCE BEFORE AFTER FEES AND EXPENSES END BALANCE AFTER FEES AND EXPENSES FEES AND EXPENSES FEES AND EXPENSES EXPENSES 1 5.00% $10,500.00 2.23% $10,223.00 $280.09 2 10.25% $11,025.00 4.51% $10,450.97 $286.33 3 15.76% $11,576.25 6.84% $10,684.03 $292.72 4 21.55% $12,155.06 9.22% $10,922.28 $299.25 5 27.63% $12,762.82 11.66% $11,165.85 $305.92 6 34.01% $13,400.96 14.15% $11,414.85 $312.74 7 40.71% $14,071.00 16.69% $11,669.40 $319.72 8 47.75% $14,774.55 19.30% $11,929.63 $326.85 9 55.13% $15,513.28 22.90% $12,289.90 $239.77 10 62.89% $16,288.95 26.61% $12,661.06 $247.01 TOTAL GAIN BEFORE FEES AND EXPENSES $6,288.95 TOTAL GAIN AFTER FEES AND EXPENSES $2,661.06 TOTAL ANNUAL FEES AND EXPENSES $2,910.40
COLUMBIA ACORN INTERNATIONAL SELECT - C ANNUAL EXPENSE RATIO 2.72% YEAR CUMULATIVE RETURN HYPOTHETICAL YEAR-END CUMULATIVE RETURN HYPOTHETICAL YEAR- ANNUAL BEFORE FEES AND BALANCE BEFORE AFTER FEES AND EXPENSES END BALANCE AFTER FEES AND EXPENSES FEES AND EXPENSES FEES AND EXPENSES EXPENSES 1 5.00% $10,500.00 2.28% $10,228.00 $275.10 2 10.25% $11,025.00 4.61% $10,461.20 $281.37 3 15.76% $11,576.25 7.00% $10,699.71 $287.79 4 21.55% $12,155.06 9.44% $10,943.67 $294.35 5 27.63% $12,762.82 11.93% $11,193.18 $301.06 6 34.01% $13,400.96 14.48% $11,448.39 $307.93 7 40.71% $14,071.00 17.09% $11,709.41 $314.95 8 47.75% $14,774.55 19.76% $11,976.39 $322.13 9 55.13% $15,513.28 22.49% $12,249.45 $329.47 10 62.89% $16,288.95 25.29% $12,528.73 $336.98 TOTAL GAIN BEFORE FEES AND EXPENSES $6,288.95 TOTAL GAIN AFTER FEES AND EXPENSES $2,528.73 TOTAL ANNUAL FEES AND EXPENSES $3,051.13
COLUMBIA ACORN INTERNATIONAL SELECT - Z ANNUAL EXPENSE RATIO 1.67% YEAR CUMULATIVE RETURN HYPOTHETICAL YEAR-END CUMULATIVE RETURN HYPOTHETICAL YEAR- ANNUAL BEFORE FEES AND BALANCE BEFORE AFTER FEES AND EXPENSES END BALANCE AFTER FEES AND EXPENSES FEES AND EXPENSES FEES AND EXPENSES EXPENSES 1 5.00% $10,500.00 3.33% $10,333.00 $169.78 2 10.25% $11,025.00 6.77% $10,677.09 $175.43 3 15.76% $11,576.25 10.33% $11,032.64 $181.28 4 21.55% $12,155.06 14.00% $11,400.02 $187.31 5 27.63% $12,762.82 17.80% $11,779.64 $193.55 6 34.01% $13,400.96 21.72% $12,171.91 $200.00 7 40.71% $14,071.00 25.77% $12,577.23 $206.66 8 47.75% $14,774.55 29.96% $12,996.05 $213.54 9 55.13% $15,513.28 34.29% $13,428.82 $220.65 10 62.89% $16,288.95 38.76% $13,876.00 $228.00 TOTAL GAIN BEFORE FEES AND EXPENSES $6,288.95 TOTAL GAIN AFTER FEES AND EXPENSES $3,876.00 TOTAL ANNUAL FEES AND EXPENSES $1,976.20
COLUMBIA THERMOSTAT FUND - A ANNUAL EXPENSE RATIO 1.36% YEAR CUMULATIVE RETURN HYPOTHETICAL YEAR-END CUMULATIVE RETURN HYPOTHETICAL YEAR- ANNUAL BEFORE FEES AND BALANCE BEFORE AFTER FEES AND EXPENSES END BALANCE AFTER FEES AND EXPENSES FEES AND EXPENSES FEES AND EXPENSES EXPENSES 1 5.00% $9,896.25 3.64% $9,768.07 $705.51 2 10.25% $10,391.06 7.41% $10,123.63 $135.26 3 15.76% $10,910.62 11.32% $10,492.13 $140.19 4 21.55% $11,456.15 15.37% $10,874.04 $145.29 5 27.63% $12,028.95 19.57% $11,269.86 $150.58 6 34.01% $12,630.40 23.93% $11,680.08 $156.06 7 40.71% $13,261.92 28.44% $12,105.23 $161.74 8 47.75% $13,925.02 33.11% $12,545.86 $167.63 9 55.13% $14,621.27 37.96% $13,002.53 $173.73 10 62.89% $15,352.33 42.98% $13,475.83 $180.05 TOTAL GAIN BEFORE FEES AND EXPENSES $5,927.33 TOTAL GAIN AFTER FEES AND EXPENSES $4,050.83 TOTAL ANNUAL FEES AND EXPENSES $2,116.04
COLUMBIA THERMOSTAT FUND - B ANNUAL EXPENSE RATIO 1.96% YEAR CUMULATIVE RETURN HYPOTHETICAL YEAR-END CUMULATIVE RETURN HYPOTHETICAL YEAR- ANNUAL BEFORE FEES AND BALANCE BEFORE AFTER FEES AND EXPENSES END BALANCE AFTER FEES AND EXPENSES FEES AND EXPENSES FEES AND EXPENSES EXPENSES 1 5.00% $10,500.00 3.04% $10,304.00 $198.98 2 10.25% $11,025.00 6.17% $10,617.24 $205.03 3 15.76% $11,576.25 9.40% $10,940.01 $211.26 4 21.55% $12,155.06 12.73% $11,272.58 $217.68 5 27.63% $12,762.82 16.15% $11,615.27 $224.30 6 34.01% $13,400.96 19.68% $11,968.37 $231.12 7 40.71% $14,071.00 23.32% $12,332.21 $238.15 8 47.75% $14,774.55 27.07% $12,707.11 $245.39 9 55.13% $15,513.28 31.70% $13,169.65 $175.96 10 62.89% $16,288.95 36.49% $13,649.02 $182.37 TOTAL GAIN BEFORE FEES AND EXPENSES $6,288.95 TOTAL GAIN AFTER FEES AND EXPENSES $3,649.02 TOTAL ANNUAL FEES AND EXPENSES $2,130.24
COLUMBIA THERMOSTAT FUND - C ANNUAL EXPENSE RATIO 2.11% YEAR CUMULATIVE RETURN HYPOTHETICAL YEAR-END CUMULATIVE RETURN HYPOTHETICAL YEAR- ANNUAL BEFORE FEES AND BALANCE BEFORE AFTER FEES AND EXPENSES END BALANCE AFTER FEES AND EXPENSES FEES AND EXPENSES FEES AND EXPENSES EXPENSES 1 5.00% $10,500.00 2.89% $10,289.00 $214.05 2 10.25% $11,025.00 5.86% $10,586.35 $220.23 3 15.76% $11,576.25 8.92% $10,892.30 $226.60 4 21.55% $12,155.06 12.07% $11,207.09 $233.15 5 27.63% $12,762.82 15.31% $11,530.97 $239.89 6 34.01% $13,400.96 18.64% $11,864.21 $246.82 7 40.71% $14,071.00 22.07% $12,207.09 $253.95 8 47.75% $14,774.55 25.60% $12,559.88 $261.29 9 55.13% $15,513.28 29.23% $12,922.86 $268.84 10 62.89% $16,288.95 32.96% $13,296.33 $276.61 TOTAL GAIN BEFORE FEES AND EXPENSES $6,288.95 TOTAL GAIN AFTER FEES AND EXPENSES $3,296.33 TOTAL ANNUAL FEES AND EXPENSES $2,441.43
COLUMBIA THERMOSTAT FUND - Z ANNUAL EXPENSE RATIO 1.11% YEAR CUMULATIVE RETURN HYPOTHETICAL YEAR-END CUMULATIVE RETURN HYPOTHETICAL YEAR- ANNUAL BEFORE FEES AND BALANCE BEFORE AFTER FEES AND EXPENSES END BALANCE AFTER FEES AND EXPENSES FEES AND EXPENSES FEES AND EXPENSES EXPENSES 1 5.00% $10,500.00 3.89% $10,389.00 $113.16 2 10.25% $11,025.00 7.93% $10,793.13 $117.56 3 15.76% $11,576.25 12.13% $11,212.98 $122.13 4 21.55% $12,155.06 16.49% $11,649.17 $126.88 5 27.63% $12,762.82 21.02% $12,102.32 $131.82 6 34.01% $13,400.96 25.73% $12,573.10 $136.95 7 40.71% $14,071.00 30.62% $13,062.20 $142.28 8 47.75% $14,774.55 35.70% $13,570.32 $147.81 9 55.13% $15,513.28 40.98% $14,098.20 $153.56 10 62.89% $16,288.95 46.47% $14,646.62 $159.53 TOTAL GAIN BEFORE FEES AND EXPENSES $6,288.95 TOTAL GAIN AFTER FEES AND EXPENSES $4,646.62 TOTAL ANNUAL FEES AND EXPENSES $1,351.68
June 30, 2005