UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 -------- FORM N-CSRS -------- CERTIFIED SHAREHOLDER REPORT OF REGISTERED MANAGEMENT INVESTMENT COMPANIES INVESTMENT COMPANY ACT FILE NUMBER 811-07445 SEI ASSET ALLOCATION TRUST (Exact name of registrant as specified in charter) -------- SEI Investments One Freedom Valley Drive Oaks, PA 19456 (Address of principal executive offices) (Zip code) SEI Investments One Freedom Valley Drive Oaks, PA 19456 CT Corporation 101 Federal Street Boston, MA 02110 (Name and address of agent for service) REGISTRANT'S TELEPHONE NUMBER, INCLUDING AREA CODE: 1-800-342-5734 DATE OF FISCAL YEAR END: MARCH 31, 2009 DATE OF REPORTING PERIOD: SEPTEMBER 30, 2008 ITEM 1. REPORTS TO STOCKHOLDERS. (SEI LOGO) New ways. New answers.(R) SEI Asset Allocation Trust Semi-Annual Report as of September 30, 2008 Diversified Conservative Income Fund Diversified Conservative Fund Diversified Global Moderate Growth Fund Diversified Moderate Growth Fund Diversified Global Growth Fund Diversified Global Stock Fund Diversified U.S. Stock Fund Defensive Strategy Fund Defensive Strategy Allocation Fund Conservative Strategy Fund Conservative Strategy Allocation Fund Moderate Strategy Fund Moderate Strategy Allocation Fund Aggressive Strategy Fund Tax-Managed Aggressive Strategy Fund Core Market Strategy Fund Core Market Strategy Allocation Fund Market Growth Strategy Fund Market Growth Strategy Allocation Fund TABLE OF CONTENTS Schedules of Investments 1 Statements of Assets and Liabilities 20 Statements of Operations 26 Statements of Changes in Net Assets 32 Financial Highlights 38 Notes to Financial Statements 45 Disclosure of Fund Expenses 55 Supplemental Financial Information: Financial Statements of SIMT Large Cap Diversified Alpha Fund 57 The Trust files its complete schedule of investments of portfolio holdings with the Securities and Exchange Commission for the first and third quarter of each fiscal year on Form N-Q within sixty days after period end. The Trust's Form N-Q is available on the Commission's website at http://www.sec.gov, and may be reviewed and copied at the Commission's Public Reference Room in Washington, DC. Information on the operation of the Public Reference Room may be obtained by calling 1-800-SEC-0330. A description of the policies and procedures that the Trust uses to determine how to vote proxies relating to portfolio securities, as well as information relating to how a Fund voted proxies relating to portfolio securities during the most recent 12-month period ended June 30, is available (i) without charge, upon request, by calling 1 800-DIAL-SEI; and (ii) on the Commission's website at http://www.sec.gov. SCHEDULE OF INVESTMENTS (Unaudited) Diversified Conservative Income Fund September 30, 2008 SECTOR WEIGHTINGS+: (PERFORMANCE GRAPH) Fixed Income Fund 54.1% Equity Funds 25.9% Money Market Fund 20.0% + Percentages based on total investments. Market Value Description Shares ($ Thousands) - --------------------------------------- --------- ------------- AFFILIATED INVESTMENT FUNDS -- 99.9% FIXED INCOME FUND -- 54.0% SEI Institutional Managed Trust Core Fixed Income Fund, Class A* 2,727,442 $ 25,556 ------------- Total Fixed Income Fund (Cost $28,220) ($ Thousands) 25,556 ------------- EQUITY FUNDS -- 25.9% SEI Institutional Managed Trust Large Cap Diversified Alpha Fund, Class A 1,302,378 10,719 SEI Institutional Managed Trust Small Cap Growth Fund, Class A 36,647 512 SEI Institutional Managed Trust Small Cap Value Fund, Class A 31,570 486 SEI Institutional Managed Trust Small/Mid Cap Diversified Alpha Fund, Class A 70,847 512 ------------- Total Equity Funds (Cost $14,558) ($ Thousands) 12,229 ------------- MONEY MARKET FUND -- 20.0% SEI Liquid Asset Trust Prime Obligation Fund, Class A, 1.87% (A) 9,446,175 9,446 ------------- Total Money Market Fund (Cost $9,446) ($ Thousands) 9,446 ------------- Total Investments -- 99.9% (Cost $52,224) ($ Thousands) $ 47,231 ============= Percentages are based on Net Assets of $47,270 ($ Thousands). (A) Rate shown is the 7-day effective yield as of September 30, 2008. * The Fund's investment in the SEI Institutional Managed Trust Core Fixed Income Fund, Class A represents greater than 50% of the Fund's total investments. The SEI Institutional Managed Trust Core Fixed Income Fund seeks to have current income consistent with the preservation of capital. For further financial information, available upon request at no charge, on the SEI Institutional Managed Trust Core Fixed Income Fund please go to the Securities Exchange Commission's website at http://www.sec.gov or call 1-800-DIAL-SEI. The accompanying notes are an integral part of the financial statements. SEI ASSET ALLOCATION TRUST / SEMI-ANNUAL REPORT / SEPTEMBER 30, 2008 1 SCHEDULE OF INVESTMENTS (Unaudited) Diversified Conservative Fund September 30, 2008 SECTOR WEIGHTINGS+: (PERFORMANCE GRAPH) Fixed Income Fund 57.8% Equity Funds 41.1% Money Market Fund 1.1% + Percentages based on total investments. Market Value Description Shares ($ Thousands) - -------------------------------------------- --------------- --------------- AFFILIATED INVESTMENT FUNDS -- 100.6% FIXED INCOME FUND -- 58.2% SEI Institutional Managed Trust Core Fixed Income Fund, Class A* 3,580,167 $ 33,546 --------------- Total Fixed Income Fund (Cost $36,998) ($ Thousands) 33,546 --------------- EQUITY FUND -- 41.3% SEI Institutional International Trust International Equity Fund, Class A 528,006 4,673 SEI Institutional Managed Trust Large Cap Diversified Alpha Fund, Class A 2,040,304 16,792 SEI Institutional Managed Trust Small Cap Growth Fund, Class A 57,559 805 SEI Institutional Managed Trust Small Cap Value Fund, Class A 49,474 761 SEI Institutional Managed Trust Small/Mid Cap Diversified Alpha Fund, Class A 111,250 804 --------------- Total Equity Funds (Cost $27,759) ($ Thousands) 23,835 --------------- MONEY MARKET FUND -- 1.1% SEI Liquid Asset Trust Prime Obligation Fund, Class A, 1.87%(A) 609,111 609 --------------- Total Money Market Fund (Cost $609) ($ Thousands) 609 --------------- Total Investments -- 100.6% (Cost $65,366) ($ Thousands) $ 57,990 =============== Percentages are based on Net Assets of $57,658 ($ Thousands). (A) Rate shown is the 7-day effective yield as of September 30, 2008. * The Fund's investment in the SEI Institutional Managed Trust Core Fixed Income Fund, Class A represents greater than 50% of the Fund's total investments. The SEI Institutional Managed Trust Core Fixed Income Fund seeks to have current income consistent with the preservation of capital. For further financial information, available upon request at no charge, on the SEI Institutional Managed Trust Core Fixed Income Fund please go to the Securities Exchange Commission's website at http://www.sec.gov or call 1-800-DIAL-SEI. The accompanying notes are an integral part of the financial statements. 2 SEI Asset Allocation Trust / Semi-Annual Report / September 30, 2008 Diversified Global Moderate Growth Fund September 30, 2008 SECTOR WEIGHTINGS+: (PERFORMANCE GRAPH) Equity Funds 61.4% Fixed Income Funds 38.1% Money Market Fund 0.5% + Percentages based on total investments. Market Value Description Shares ($ Thousands) - -------------------------------------------- --------------- --------------- AFFILIATED INVESTMENT FUNDS -- 99.7% EQUITY FUNDS -- 61.3% SEI Institutional International Trust Emerging Markets Equity Fund, Class A 140,245 $ 1,603 SEI Institutional International Trust International Equity Fund, Class A 2,442,107 21,612 SEI Institutional Managed Trust Large Cap Diversified Alpha Fund, Class A 7,589,285 62,460 SEI Institutional Managed Trust Small Cap Growth Fund, Class A 213,693 2,987 SEI Institutional Managed Trust Small Cap Value Fund, Class A 183,920 2,829 SEI Institutional Managed Trust Small/Mid Cap Diversified Alpha Fund, Class A 413,116 2,987 --------------- Total Equity Funds (Cost $112,228) ($ Thousands) 94,478 --------------- FIXED INCOME FUNDS -- 38.0% SEI Institutional Managed Trust Core Fixed Income Fund, Class A 4,968,125 46,551 SEI Institutional International Trust Emerging Markets Debt Fund, Class A 639,867 6,034 SEI Institutional Managed Trust High Yield Bond Fund, Class A 915,481 6,061 --------------- Total Fixed Income Funds (Cost $66,057) ($ Thousands) 58,646 --------------- MONEY MARKET FUND -- 0.4% SEI Liquid Asset Trust Prime Obligation Fund, Class A, 1.87% (A) 672,862 673 --------------- Total Money Market Fund (Cost $673) ($ Thousands) 673 --------------- Total Investments -- 99.7% (Cost $178,958) ($ Thousands) $ 153,797 =============== Percentages are based on Net Assets of $154,219 ($ Thousands). (A) Rate shown is the 7-day effective yield as of September 30, 2008. The accompanying notes are an integral part of the financial statements. SEI Asset Allocation Trust / Semi-Annual Report / September 30, 2008 3 SCHEDULE OF INVESTMENTS (Unaudited) Diversified Moderate Growth Fund September 30, 2008 SECTOR WEIGHTINGS+: (PERFORMANCE GRAPH) Equity Funds 61.2% Fixed Income Fund 38.0% Money Market Fund 0.8% + Percentages based on total investments. Market Value Description Shares ($ Thousands) - -------------------------------------------- --------------- --------------- AFFILIATED INVESTMENT FUNDS -- 106.4% EQUITY FUNDS -- 65.1% SEI Institutional International Trust International Equity Fund, Class A 1,631,565 $ 14,439 SEI Institutional Managed Trust Large Cap Diversified Alpha Fund, Class A 6,308,089 51,916 SEI Institutional Managed Trust Small Cap Growth Fund, Class A 177,891 2,487 SEI Institutional Managed Trust Small Cap Value Fund, Class A 152,899 2,352 SEI Institutional Managed Trust Small/Mid Cap Diversified Alpha Fund, Class A 343,903 2,486 --------------- Total Equity Funds (Cost $86,394) ($ Thousands) 73,680 --------------- FIXED INCOME FUND -- 40.4% SEI Institutional Managed Trust Core Fixed Income Fund, Class A 4,872,529 45,655 --------------- Total Fixed Income Fund (Cost $50,673) ($ Thousands) 45,655 --------------- MONEY MARKET FUND -- 0.9% SEI Liquid Asset Trust Prime Obligation Fund, Class A, 1.87% (A) 1,002,007 1,002 --------------- Total Money Market Fund (Cost $1,002) ($ Thousands) 1,002 --------------- Total Investments -- 106.4% (Cost $138,069) ($ Thousands) $ 120,337 =============== Percentages are based on Net Assets of $113,115 ($ Thousands). (A) Rate shown is the 7-day effective yield as of September 30, 2008. The accompanying notes are an integral part of the financial statements. 4 SEI Asset Allocation Trust / Semi-Annual Report / September 30, 2008 Diversified Global Growth Fund September 30, 2008 SECTOR WEIGHTINGS+: (PERFORMANCE GRAPH) Equity Funds 80.7% Fixed Income Funds 18.3% Money Market Fund 1.0% + Percentages based on total investments. Market Value Description Shares ($ Thousands) - -------------------------------------------- --------------- --------------- AFFILIATED INVESTMENT FUNDS -- 100.6% EQUITY FUNDS -- 81.2% SEI Institutional International Trust Emerging Markets Equity Fund, Class A 311,910 $ 3,565 SEI Institutional International Trust International Equity Fund, Class A 3,489,914 30,886 SEI Institutional Managed Trust Large Cap Diversified Alpha Fund, Class A* 11,249,654 92,584 SEI Institutional Managed Trust Small Cap Growth Fund, Class A 317,150 4,434 SEI Institutional Managed Trust Small Cap Value Fund, Class A 273,342 4,204 SEI Institutional Managed Trust Small/Mid Cap Diversified Alpha Fund, Class A 613,021 4,432 --------------- Total Equity Funds (Cost $166,788) ($ Thousands) 140,105 --------------- FIXED INCOME FUNDS -- 18.4% SEI Institutional Managed Trust Core Fixed Income Fund, Class A 2,670,993 25,027 SEI Institutional International Trust Emerging Markets Debt Fund, Class A 355,498 3,353 SEI Institutional Managed Trust High Yield Bond Fund, Class A 508,643 3,367 --------------- Total Fixed Income Funds (Cost $35,752) ($ Thousands) 31,747 --------------- Market Value Description Shares ($ Thousands) - -------------------------------------------- --------------- --------------- MONEY MARKET FUND -- 1.0% SEI Liquid Asset Trust Prime Obligation Fund, Class A, 1.87% (A) 1,793,133 $ 1,793 --------------- Total Money Market Fund (Cost $1,793) ($ Thousands) 1,793 --------------- Total Investments -- 100.6% (Cost $204,333) ($ Thousands) $ 173,645 =============== Percentages are based on Net Assets of $172,662 ($ Thousands). (A) Rate shown is the 7-day effective yield as of September 30, 2008. * The Fund's investment in the SEI Institutional Managed Trust Large Cap Diversified Alpha Fund, Class A represents greater than 50% of the Fund's total investments. The SEI Institutional Managed Trust Large Cap Diversified Alpha Fund seeks to provide capital appreciation. Since the investment in the SEI Institutional Managed Trust Large Cap Diversified Alpha Fund represents greater than 75% of the total investments of certain other funds included in this Semi-Annual report, the Annual Report as of September 30, 2008 for the SEI Institutional Managed Trust Large Cap Diversified Alpha Fund is included at the back of these financial statements. For further financial information, available upon request at no charge, on the SEI Institutional Managed Trust Large Cap Diversified Alpha Fund please go to the Securities Exchange Commission's website at http://www.sec.gov or call 1-800-DIAL-SEI. The accompanying notes are an integral part of the financial statements. SEI Asset Allocation Trust / Semi-Annual Report / September 30, 2008 5 SCHEDULE OF INVESTMENTS (Unaudited) Diversified Global Stock Fund September 30, 2008 SECTOR WEIGHTINGS+: (PERFORMANCE GRAPH) Equity Funds 99.0% Money Market Fund 1.0% + Percentages based on total investments. Market Value Description Shares ($ Thousands) - -------------------------------------------- --------------- --------------- AFFILIATED INVESTMENT FUNDS -- 100.5% EQUITY FUNDS -- 99.5% SEI Institutional International Trust Emerging Markets Equity Fund, Class A 149,291 $ 1,707 SEI Institutional International Trust International Equity Fund, Class A 2,132,930 18,877 SEI Institutional Managed Trust Large Cap Diversified Alpha Fund, Class A* 6,639,166 54,640 SEI Institutional Managed Trust Small Cap Growth Fund, Class A 187,430 2,620 SEI Institutional Managed Trust Small Cap Value Fund, Class A 160,882 2,474 SEI Institutional Managed Trust Small/Mid Cap Diversified Alpha Fund, Class A 362,314 2,620 --------------- Total Equity Funds (Cost $101,462) ($ Thousands) 82,938 --------------- MONEY MARKET FUND -- 1.0% SEI Liquid Asset Trust Prime Obligation Fund, Class A, 1.87% (A) 837,463 837 --------------- Total Money Market Fund (Cost $837) ($ Thousands) 837 --------------- Total Investments -- 100.5% (Cost $102,299) ($ Thousands) $ 83,775 =============== Percentages are based on Net Assets of $83,371 ($ Thousands). (A) Rate shown is the 7-day effective yield as of September 30, 2008. * The Fund's investment in the SEI Institutional Managed Trust Large Cap Diversified Alpha Fund, Class A represents greater than 50% of the Fund's total investments. The SEI Institutional Managed Trust Large Cap Diversified Alpha Fund seeks to provide capital appreciation. Since the investment in the SEI Institutional Managed Trust Large Cap Diversified Alpha Fund represents greater than 75% of the total investments of certain other funds included in this Semi-Annual report, the Annual Report as of September 30, 2008 for the SEI Institutional Managed Trust Large Cap Diversified Alpha Fund is included at the back of these financial statements. For further financial information, available upon request at no charge, on the SEI Institutional Managed Trust Large Cap Diversified Alpha Fund please go to the Securities Exchange Commission's website at http://www.sec.gov or call 1-800-DIAL-SEI. The accompanying notes are an integral part of the financial statements. 6 SEI Asset Allocation Trust / Semi-Annual Report / September 30, 2008 Diversified U.S. Stock Fund September 30, 2008 SECTOR WEIGHTINGS+: (PERFORMANCE GRAPH) Equity Funds 99.1% Money Market Fund 0.9% + Percentages based on total investments. Market Value Description Shares ($ Thousands) - -------------------------------------------- --------------- --------------- AFFILIATED INVESTMENT FUNDS -- 100.0% EQUITY FUND-- 99.1% SEI Institutional Managed Trust Large Cap Diversified Alpha Fund, Class A* 5,377,961 $ 44,261 SEI Institutional Managed Trust Small Cap Growth Fund, Class A 151,691 2,121 SEI Institutional Managed Trust Small Cap Value Fund, Class A 130,320 2,004 SEI Institutional Managed Trust Small/Mid Cap Diversified Alpha Fund, Class A 293,185 2,120 --------------- Total Equity Funds (Cost $61,242) ($ Thousands) 50,506 --------------- MONEY MARKET FUND -- 0.9% SEI Liquid Asset Trust Prime Obligation Fund, Class A, 1.87% (A) 434,365 434 --------------- Total Money Market Fund (Cost $434) ($ Thousands) 434 --------------- Total Investments -- 100.0% (Cost $61,676) ($ Thousands) $ 50,940 =============== Percentages are based on Net Assets of $50,944 ($ Thousands). (A) Rate shown is the 7-day effective yield as of September 30, 2008. * The Fund's investment in the SEI Institutional Managed Trust Large Cap Diversified Alpha Fund, Class A represents greater than 75% of the Fund's total investments. The SEI Institutional Managed Trust Large Cap Diversified Alpha Fund seeks to provide capital appreciation. Due to the Funds investment in the SEI Institutional Managed Trust Large Cap Diversified Alpha Alpha being greater than 75%, the Semi-Annual Report as of March 31, 2008 for the SEI Institutional Managed Trust Large Cap Diversified Alpha Fund is included in the back of these financial statements. For further financial information, available upon request at no charge, on the SEI Institutional Managed Trust Large Cap Diversified Alpha Fund please go to the Securities Exchange Commission's website at http://www.sec.gov or call 1-800-DIAL-SEI. The accompanying notes are an integral part of the financial statements. SEI Asset Allocation Trust / Semi-Annual Report / September 30, 2008 7 SCHEDULE OF INVESTMENTS (Unaudited) Defensive Strategy Fund September 30, 2008 SECTOR WEIGHTINGS+: (PERFORMANCE GRAPH) Fixed Income Funds 28.9% Equity Funds 5.0% Money Market Fund 66.1% + Percentages based on total investments. Market Value Description Shares ($ Thousands) - -------------------------------------------- --------------- --------------- AFFILIATED INVESTMENT FUNDS-- 100.3% FIXED INCOME FUNDS -- 28.9% SEI Institutional Managed Trust Core Fixed Income Fund, Class A 537,269 $ 5,034 SEI Institutional Managed Trust Enhanced Income Fund, Class A 519,283 4,269 SEI Institutional Managed Trust High Yield Bond Fund, Class A 672,277 4,450 --------------- Total Fixed Income Funds (Cost $15,941) ($ Thousands) 13,753 --------------- EQUITY FUNDS -- 5.1% SEI Institutional Managed Trust Global Managed Volatility Fund, Class A 43,500 394 SEI Institutional Managed Trust Real Estate Fund, Class A 28,503 392 SEI Institutional Managed Trust U.S. Managed Volatility Fund, Class A 143,126 1,610 --------------- Total Equity Funds (Cost $2,172) ($ Thousands) 2,396 --------------- MONEY MARKET FUND --66.3% SEI Liquid Asset Trust Prime Obligation Fund, Class A, 1.87%* (A) 31,533,966 31,534 --------------- Total Money Market Fund (Cost $31,534) ($ Thousands) 31,534 --------------- Total Investments -- 100.3% (Cost $49,647) ($ Thousands) $ 47,683 =============== Percentages are based on Net Assets of $47,557 ($ Thousands). (A) Rate shown is the 7-day effective yield as of September 30, 2008. * The Fund's investment in the SEI Liquid Asset Trust Prime Obligation Fund, Class A represents greater than 50% of the Fund's total investments. The SEI Liquid Asset Trust Prime Obligation Fund seeks to preserve principal value and maintain a high degree of liquidity while providing current income. For further financial information, available upon request at no charge, on the SEI Liquid Asset Trust Prime Obligation Fund please go to the Securities Exchange Commission's website at http://www.sec.gov or call 1-800-DIAL-SEI. The accompanying notes are an integral part of the financial statements. 8 SEI Asset Allocation Trust / Semi-Annual Report / September 30, 2008 Defensive Strategy Allocation Fund September 30, 2008 SECTOR WEIGHTINGS+: (PERFORMANCE GRAPH) Equity Funds 61.0% Fixed Income Fund 39.0% + Percentages based on total investments. Market Value Description Shares ($ Thousands) - -------------------------------------------- --------------- --------------- AFFILIATED INVESTMENT FUNDS -- 100.2% EQUITY FUNDS -- 61.2% SEI Institutional Managed Trust Real Estate Fund, Class A 249,822 $ 3,430 SEI Institutional Managed Trust U.S. Managed Volatility Fund, Class A 594,628 6,690 --------------- Total Equity Funds (Cost $10,019) ($ Thousands) 10,120 --------------- FIXED INCOME FUND -- 39.0% SEI Institutional Managed Trust High Yield Bond Fund, Class A 975,675 6,459 --------------- Total Fixed Income Fund (Cost $8,087) ($ Thousands) 6,459 --------------- Total Investments -- 100.2% (Cost $18,106) ($ Thousands) $ 16,579 =============== Percentages are based on Net Assets of $16,542 ($ Thousands). The accompanying notes are an integral part of the financial statements. SEI Asset Allocation Trust / Semi-Annual Report / September 30, 2008 9 SCHEDULE OF INVESTMENTS (Unaudited) Conservative Strategy Fund September 30, 2008 SECTOR WEIGHTINGS+: (PERFORMANCE GRAPH) Fixed Income Funds 64.8% Equity Funds 34.7% Money Market Fund 0.5% + Percentages based on total investments. Market Value Description Shares ($ Thousands) - -------------------------------------------- --------------- --------------- AFFILIATED INVESTMENT FUNDS -- 100.8% FIXED INCOME FUNDS -- 65.4% SEI Institutional Managed Trust Core Fixed Income Fund, Class A 1,382,885 $ 12,958 SEI Institutional Managed Trust Enhanced Income Fund, Class A 2,437,015 20,032 SEI Institutional Managed Trust High Yield Bond Fund, Class A 3,037,019 20,105 SEI Daily Income Trust Ultra Short Bond Fund, Class A 3,817,522 34,930 --------------- Total Fixed Income Funds (Cost $98,663) ($ Thousands) 88,025 --------------- EQUITY FUNDS -- 34.9% SEI Institutional Managed Trust Global Managed Volatility Fund, Class A 1,518,771 13,760 SEI Institutional Managed Trust Real Estate Fund, Class A 617,456 8,478 SEI Institutional Managed Trust U.S. Managed Volatility Fund, Class A 2,205,882 24,816 --------------- Total Equity Funds (Cost $47,118) ($ Thousands) 47,054 --------------- MONEY MARKET FUND -- 0.5% SEI Liquid Asset Trust Prime Obligation Fund, Class A, 1.87% (A) 671,016 671 --------------- Total Money Market Fund (Cost $671) ($ Thousands) 671 --------------- Total Investments -- 100.8% (Cost $146,452) ($ Thousands) $ 135,750 =============== Percentages are based on Net Assets of $134,621 ($ Thousands). (A) Rate shown is the 7-day effective yield as of September 30, 2008. The accompanying notes are an integral part of the financial statements. 10 SEI Asset Allocation Trust / Semi-Annual Report / September 30, 2008 Conservative Strategy Allocation Fund September 30, 2008 SECTOR WEIGHTINGS+: (PERFORMANCE GRAPH) Fixed Income Fund 67.8% Equity Funds 31.9% Money Market Fund 0.3% + Percentages based on total investments. Market Value Description Shares ($ Thousands) - -------------------------------------------- --------------- --------------- AFFILIATED INVESTMENT FUNDS -- 99.9% EQUITY FUNDS -- 67.8% SEI Institutional Managed Trust Real Estate Fund, Class A 585,154 $ 8,034 SEI Institutional Managed Trust U.S. Managed Volatility Fund, Class A 1,424,403 16,025 --------------- Total Equity Funds (Cost $22,665) ($ Thousands) 24,059 --------------- FIXED INCOME FUND -- 31.9% SEI Institutional Managed Trust High Yield Bond Fund, Class A 1,711,827 11,332 --------------- Total Fixed Income Fund (Cost $14,504) ($ Thousands) 11,332 --------------- MONEY MARKET FUND -- 0.2% SEI Liquid Asset Trust Prime Obligation Fund, Class A, 1.87% (A) 88,000 88 --------------- Total Money Market Fund (Cost $88) ($ Thousands) 88 --------------- Total Investments -- 99.9% (Cost $37,257) ($ Thousands) $ 35,479 =============== Percentages are based on Net Assets of $35,519 ($ Thousands). (A) Rate shown is the 7-day effective yield as of September 30, 2008. The accompanying notes are an integral part of the financial statements. SEI Asset Allocation Trust / Semi-Annual Report / September 30, 2008 11 SCHEDULE OF INVESTMENTS (Unaudited) Moderate Strategy Fund September 30, 2008 SECTOR WEIGHTINGS+: (PERFORMANCE GRAPH) Fixed Income Funds 52.9% Equity Funds 47.1% + Percentages based on total investments. Market Value Description Shares ($ Thousands) - -------------------------------------------- --------------- --------------- AFFILIATED INVESTMENT FUNDS -- 100.2% FIXED INCOME FUNDS -- 53.0% SEI Institutional Managed Trust Core Fixed Income Fund, Class A 8,382,952 $ 78,548 SEI Institutional Managed Trust Enhanced Income Fund, Class A 9,237,359 75,931 SEI Institutional Managed Trust High Yield Bond Fund, Class A 9,090,840 60,182 --------------- Total Fixed Income Funds (Cost $250,864) ($ Thousands) 214,661 --------------- EQUITY FUNDS -- 47.2% SEI Institutional Managed Trust Global Managed Volatility Fund, Class A 6,820,334 61,792 SEI Institutional Managed Trust Large Cap Growth Fund, Class A 1,146,825 21,090 SEI Institutional Managed Trust Large Cap Value Fund, Class A 1,340,584 21,168 SEI Institutional Managed Trust Real Estate Fund, Class A 1,849,232 25,390 SEI Institutional Managed Trust U.S. Managed Volatility Fund, Class A 5,503,448 61,914 --------------- Total Equity Funds (Cost $199,856) ($ Thousands) 191,354 --------------- Total Investments -- 100.2% (Cost $450,720) ($ Thousands) $ 406,015 =============== Percentages are based on Net Assets of $405,196 ($ Thousands). The accompanying notes are an integral part of the financial statements. 12 SEI Asset Allocation Trust / Semi-Annual Report / September 30, 2008 Moderate Strategy Allocation Fund September 30, 2008 SECTOR WEIGHTINGS+: (PERFORMANCE GRAPH) Equity Funds 82.4% Fixed Income Fund 17.2% Money Market Fund 0.4% + Percentages based on total investments. Market Value Description Shares ($ Thousands) - -------------------------------------------- --------------- --------------- AFFILIATED INVESTMENT FUNDS -- 100.5% EQUITY FUNDS -- 82.8% SEI Institutional International Trust International Equity Fund, Class A 980,457 $ 8,677 SEI Institutional Managed Trust Real Estate Fund, Class A 655,107 8,994 SEI Institutional Managed Trust Tax-Managed Large Cap Fund, Class A 1,625,245 18,008 SEI Institutional Managed Trust U.S. Managed Volatility Fund, Class A 3,983,492 44,814 --------------- Total Equity Funds (Cost $80,999) ($ Thousands) 80,493 --------------- FIXED INCOME FUND -- 17.3% SEI Institutional Managed Trust High Yield Bond Fund, Class A 2,537,453 16,798 --------------- Total Fixed Income Fund (Cost $21,419) ($ Thousands) 16,798 --------------- MONEY MARKET FUND -- 0.4% SEI Liquid Asset Trust Prime Obligation Fund, Class A, 1.87% (A) 426,738 427 --------------- Total Money Market Fund (Cost $427) ($ Thousands) 427 --------------- Total Investments -- 100.5% (Cost $102,845) ($ Thousands) $ 97,718 =============== Percentages are based on Net Assets of $97,248 ($ Thousands). (A) Rate shown is the 7-day effective yield as of September 30, 2008. The accompanying notes are an integral part of the financial statements. SEI Asset Allocation Trust / Semi-Annual Report / September 30, 2008 13 SCHEDULE OF INVESTMENTS (Unaudited) Aggressive Strategy Fund September 30, 2008 SECTOR WEIGHTINGS+: (PERFORMANCE GRAPH) Equity Funds 80.3% Fixed Income Funds 19.3% Money Market Fund 0.4% + Percentages based on total investments. Market Value Description Shares ($ Thousands) - -------------------------------------------- --------------- --------------- AFFILIATED INVESTMENT FUNDS -- 100.5% EQUITY FUNDS -- 80.7% SEI Institutional International Trust Emerging Markets Equity Fund, Class A 652,070 $ 7,453 SEI Institutional International Trust International Equity Fund, Class A 7,295,969 64,569 SEI Institutional Managed Trust Large Cap Diversified Alpha Fund, Class A 21,390,406 176,043 SEI Institutional Managed Trust Small Cap Growth Fund, Class A 1,040,053 14,540 SEI Institutional Managed Trust Small Cap Value Fund, Class A 952,095 14,643 SEI Institutional Managed Trust Small/Mid Cap Diversified Alpha Fund, Class A 2,010,425 14,536 --------------- Total Equity Funds (Cost $370,776) ($ Thousands) 291,784 --------------- FIXED INCOME FUNDS --19.4% SEI Institutional International Trust Emerging Markets Debt Fund, Class A 3,716,010 35,042 SEI Institutional Managed Trust High Yield Bond Fund, Class A 5,317,420 35,201 --------------- Total Fixed Income Funds (Cost $84,321) ($ Thousands) 70,243 --------------- MONEY MARKET FUND -- 0.4% SEI Liquid Asset Trust Prime Obligation Fund, Class A, 1.87%(A) 1,467,655 1,468 --------------- Total Money Market Fund (Cost $1,468) ($ Thousands) 1,468 --------------- Total Investments -- 100.5% (Cost $456,565) ($ Thousands) $ 363,495 =============== Percentages are based on Net Assets of $361,786 ($ Thousands). (A) Rate shown is the 7-day effective yield as of September 30, 2008. The accompanying notes are an integral part of the financial statements. 14 SEI Asset Allocation Trust / Semi-Annual Report / September 30, 2008 Tax-Managed Aggressive Strategy Fund September 30, 2008 SECTOR WEIGHTINGS+: (PERFORMANCE GRAPH) Equity Funds 88.6% Fixed Income Funds 11.2% Money Market Fund 0.2% + Percentages based on total investments. Market Value Description Shares ($ Thousands) - -------------------------------------------- --------------- --------------- AFFILIATED INVESTMENT FUNDS -- 100.0% EQUITY FUNDS -- 88.5% SEI Institutional International Trust Emerging Markets Equity Fund, Class A 121,170 $ 1,385 SEI Institutional International Trust International Equity Fund, Class A 1,204,544 10,660 SEI Institutional Managed Trust Tax-Managed Large Cap Fund, Class A* 3,497,447 38,752 SEI Institutional Managed Trust Tax-Managed Small Cap Fund, Class A 937,909 9,529 --------------- Total Equity Funds (Cost $66,109) ($ Thousands) 60,326 --------------- FIXED INCOME FUNDS -- 11.3% SEI Institutional International Trust Emerging Markets Debt Fund, Class A 413,985 3,904 SEI Institutional Managed Trust High Yield Bond Fund, Class A 567,862 3,760 --------------- Total Fixed Income Funds (Cost $9,206) ($ Thousands) 7,664 --------------- MONEY MARKET FUND -- 0.2% SEI Liquid Asset Trust Prime Obligation Fund, Class A, 1.87% (A) 132,422 132 --------------- Total Money Market Fund (Cost $132) ($ Thousands) 132 --------------- Total Investments -- 100.0% (Cost $75,447) ($ Thousands) $ 68,122 =============== Percentages are based on Net Assets of $68,143 ($ Thousands). (A) Rate shown is the 7-day effective yield as of September 30, 2008. * The Fund's investment in the SEI Institutional Managed Trust Tax-Managed Large Cap Fund, Class A represents greater than 50% of the Fund's total investments. The SEI Institutional Managed Trust Tax-Managed Large Cap Fund seeks to provide high long-term after-tax returns. For further financial information, available upon request at no charge, on the SEI Institutional Managed Trust Tax-Managed Large Cap Fund please go to the Securities Exchange Commission's website at http://www.sec.gov or call 1-800-DIAL-SEI. The accompanying notes are an integral part of the financial statements. SEI Asset Allocation Trust / Semi-Annual Report / September 30, 2008 15 SCHEDULE OF INVESTMENTS (Unaudited) Core Market Strategy Fund September 30, 2008 SECTOR WEIGHTINGS+: (PERFORMANCE GRAPH) Fixed Income Funds 58.8% Equity Funds 41.2% + Percentages based on total investments. Market Value Description Shares ($ Thousands) - -------------------------------------------- --------------- --------------- AFFILIATED INVESTMENT FUNDS -- 100.8% FIXED INCOME FUNDS -- 59.3% SEI Institutional Managed Trust Core Fixed Income Fund, Class A 4,330,077 $ 40,573 SEI Institutional International Trust Emerging Markets Debt Fund, Class A 434,297 4,095 SEI Institutional Managed Trust High Yield Bond Fund, Class A 621,417 4,114 --------------- Total Fixed Income Funds (Cost $53,550) ($ Thousands) 48,782 --------------- EQUITY FUNDS -- 41.5% SEI Institutional International Trust Emerging Markets Equity Fund, Class A 76,052 869 SEI Institutional International Trust International Equity Fund, Class A 852,017 7,541 SEI Institutional Managed Trust Large Cap Diversified Alpha Fund, Class A 2,508,729 20,647 SEI Institutional Managed Trust Small Cap Growth Fund, Class A 121,407 1,697 SEI Institutional Managed Trust Small Cap Value Fund, Class A 110,865 1,705 SEI Institutional Managed Trust Small/Mid Cap Diversified Alpha Fund, Class A 234,690 1,697 --------------- Total Equity Funds (Cost $41,560) ($ Thousands) 34,156 --------------- Total Investments -- 100.8% (Cost $95,110) ($ Thousands) $ 82,938 =============== Percentages are based on Net Assets of $82,285 ($ Thousands). The accompanying notes are an integral part of the financial statements. 16 SEI Asset Allocation Trust / Semi-Annual Report / September 30, 2008 Core Market Strategy Allocation Fund September 30, 2008 SECTOR WEIGHTINGS+: (PERFORMANCE GRAPH) Equity Funds 87.8% Fixed Income Funds 11.2% Money Market Fund 1.0% + Percentages based on total investments. Market Value Description Shares ($ Thousands) - ------------------------------------------ ---------- ------------- AFFILIATED INVESTMENT FUNDS -- 102.1% EQUITY FUNDS -- 89.7% SEI Institutional International Trust Emerging Markets Equity Fund, Class A 31,853 $ 364 SEI Institutional International Trust International Equity Fund, Class A 316,748 2,803 SEI Institutional Managed Trust Tax-Managed Large Cap Fund, Class A* 919,407 10,187 SEI Institutional Managed Trust Tax-Managed Small Cap Fund, Class A 246,584 2,506 ------- Total Equity Funds (Cost $17,117) ($ Thousands) 15,860 ------- FIXED INCOME FUNDS -- 11.4% SEI Institutional International Trust Emerging Markets Debt Fund, Class A 108,884 1,027 SEI Institutional Managed Trust High Yield Bond Fund, Class A 149,307 988 ------- Total Fixed Income Funds (Cost $2,441) ($ Thousands) 2,015 ------- MONEY MARKET FUND -- 1.0% SEI Liquid Asset Trust Prime Obligation Fund, Class A, 1.87% (A) 182,743 183 ------- Total Money Market Fund (Cost $183) ($ Thousands) 183 ------- Total Investments -- 102.1% (Cost $19,741) ($ Thousands) $18,058 ======= Percentages are based on Net Assets of $17,689 ($ Thousands). (A) Rate shown is the 7-day effective yield as of September 30, 2008. * The Fund's investment in the SEI Institutional Managed Trust Tax-Managed Large Cap Fund, Class A represents greater than 50% of the Fund's total investments. The SEI Institutional Managed Trust Tax-Managed Large Cap Fund seeks to provide high long-term after-tax returns. For further financial information, available upon request at no charge, on the SEI Institutional Managed Trust Tax-Managed Large Cap Fund please go to the Securities Exchange Commission's website at http://www.sec.gov or call 1-800-DIAL-SEI. The accompanying notes are an integral part of the financial statements. SEI Asset Allocation Trust / Semi-Annual Report / September 30, 2008 17 SCHEDULE OF INVESTMENTS (Unaudited) Market Growth Strategy Fund September 30, 2008 SECTOR WEIGHTINGS+: (PERFORMANCE GRAPH) Equity Funds 60.9% Fixed Income Funds 39.0% Money Market Fund 0.1% + Percentages based on total investments. Market Value Description Shares ($ Thousands) - ------------------------------------------ ---------- ------------- AFFILIATED INVESTMENT FUNDS -- 100.1% EQUITY FUNDS -- 60.9% SEI Institutional International Trust Emerging Markets Equity Fund, Class A 547,921 $ 6,263 SEI Institutional International Trust International Equity Fund, Class A 9,542,580 84,452 SEI Institutional Managed Trust Large Cap Diversified Alpha Fund, Class A 26,165,576 215,343 SEI Institutional Managed Trust Small Cap Growth Fund, Class A 1,311,520 18,335 SEI Institutional Managed Trust Small Cap Value Fund, Class A 1,197,708 18,421 SEI Institutional Managed Trust Small/Mid Cap Diversified Alpha Fund, Class A 3,380,039 24,437 -------- Total Equity Funds (Cost $454,535) ($ Thousands) 367,251 -------- FIXED INCOME FUNDS --39.1% SEI Institutional Managed Trust Core Fixed Income Fund, Class A 15,658,603 146,721 SEI Institutional International Trust Emerging Markets Debt Fund, Class A 4,375,966 41,266 SEI Institutional Managed Trust High Yield Bond Fund, Class A 7,156,627 47,377 -------- Total Fixed Income Funds (Cost $267,720) ($ Thousands) 235,364 -------- MONEY MARKET FUND -- 0.1% SEI Liquid Asset Trust Prime Obligation Fund, Class A, 1.87% (A) 653,487 653 -------- Total Money Market Fund (Cost $653) ($ Thousands) 653 -------- Total Investments -- 100.1% (Cost $722,908) ($ Thousands) $603,268 ======== Percentages are based on Net Assets of $602,421 ($ Thousands). (A) Rate shown is the 7-day effective yield as of September 30, 2008. The accompanying notes are an integral part of the financial statements. 18 SEI Asset Allocation Trust / Semi-Annual Report / September 30, 2008 Market Growth Strategy Allocation Fund September 30, 2008 SECTOR WEIGHTINGS+: (PERFORMANCE GRAPH) Equity Funds 88.7% Fixed Income Funds 11.3% + Percentages based on total investments. Market Value Description Shares ($ Thousands) - ------------------------------------------ ---------- ------------- AFFILIATED INVESTMENT FUNDS -- 99.9% EQUITY FUNDS -- 88.6% SEI Institutional International Trust Emerging Markets Equity Fund, Class A 235,662 $ 2,694 SEI Institutional International Trust International Equity Fund, Class A 2,341,873 20,725 SEI Institutional Managed Trust Tax-Managed Large Cap Fund, Class A* 6,802,099 75,367 SEI Institutional Managed Trust Tax-Managed Small Cap Fund, Class A 1,823,824 18,530 -------- Total Equity Funds (Cost $129,134) ($ Thousands) 117,316 -------- FIXED INCOME FUNDS --11.3% SEI Institutional International Trust Emerging Markets Debt Fund, Class A 804,690 7,588 SEI Institutional Managed Trust High Yield Bond Fund, Class A 1,103,711 7,307 -------- Total Fixed Income Funds (Cost $17,969) ($ Thousands) 14,895 -------- Total Investments -- 99.9% (Cost $147,103) ($ Thousands) $132,211 ======== Percentages are based on Net Assets of $132,386 ($ Thousands). * The Fund's investment in the SEI Institutional Managed Trust Tax-Managed Large Cap Fund, Class A represents greater than 50% of the Fund's total investments. The SEI Institutional Managed Trust Tax-Managed Large Cap Fund seeks to provide high long-term after-tax returns. For further financial information, available upon request at no charge, on the SEI Institutional Managed Trust Tax-Managed Large Cap Fund please go to the Securities Exchange Commission's website at http://www.sec.gov or call 1-800-DIAL-SEI. The accompanying notes are an integral part of the financial statements. SEI Asset Allocation Trust / Semi-Annual Report / September 30, 2008 19 Statements of Assets and Liabilities ($ Thousands) September 30, 2008 (Unaudited) DIVERSIFIED DIVERSIFIED CONSERVATIVE DIVERSIFIED GLOBAL INCOME CONSERVATIVE MODERATE GROWTH FUND FUND FUND ------------ ------------ --------------- ASSETS: Investments in Affiliated Funds, at Market Value (Cost $52,224, $65,366, $178,958, $138,069 $204,333, $102,299, and $61,676, respectively.) $ 47,231 $ 57,990 $ 153,797 Cash 2 -- -- Receivable for Investment Securities Sold 685 1,253 3,690 Receivable for Fund Shares Sold 182 124 23 Income Distribution Receivable from Affiliated Funds 126 152 267 Prepaid Expenses 3 4 9 Receivable from Administrator 1 2 4 -------- --------- --------- Total Assets 48,230 59,525 157,790 -------- --------- --------- LIABILITIES: Payable for Investment Securities Purchased 856 1,437 3,109 Payable for Fund Shares Redeemed 88 412 423 Distribution Fees Payable 6 5 4 Investment Advisory Fees Payable 4 5 14 Administrative Servicing Fees Payable 1 1 6 Trustees' Fees Payable 1 1 3 Chief Compliance Officer Fees Payable -- 1 1 Accrued Expenses 4 5 11 -------- --------- --------- Total Liabilities 960 1,867 3,571 -------- --------- --------- Net Assets $ 47,270 $ 57,658 $ 154,219 -------- --------- --------- NET ASSETS: Paid-in Capital (unlimited authorization -- no par value) $ 52,349 $ 65,439 $ 178,337 Undistributed Net Investment Income/ (Distributions in Excess of Net Investment Income) 373 441 759 Accumulated Net Realized Gain (Loss) on Investments (459) (846) 284 Net Unrealized Depreciation on Investments (4,993) (7,376) (25,161) -------- --------- --------- Net Assets $ 47,270 $ 57,658 $ 154,219 -------- --------- --------- Net Asset Value, Offering and Redemption Price Per Share -- Class A ($37,091,900 / 3,688,453 shares), ($47,572,024 / 5,255,678 shares), ($122,709,114 / 12,765,475 shares), ($89,237,890 / 8,590,561 shares), ($127,289,123 / 11,909,727 shares), ($62,735,866 / 6,000,454 shares), and ($42,075,262 / 3,333,565 shares), respectively. $ 10.06 $ 9.05 $ 9.61 Net Asset Value, Offering and Redemption Price Per Share -- Class D ($6,204,915 / 622,612 shares), ($4,432,072 / 491,752 shares), ($3,500,660 / 368,840 shares), ($10,120,673 / 980,738 shares), ($6,716,070 / 634,484 shares), ($4,113,369 / 421,990 shares), and ($4,777,501 / 404,789 shares), respectively. $ 9.97 $ 9.01 $ 9.49 Net Asset Value, Offering and Redemption Price Per Share -- Class I ($3,972,888 / 396,009 shares), ($5,653,515 / 625,951 shares), ($28,009,094 / 2,925,933 shares), ($13,756,269 / 1,326,006 shares), ($38,656,668 / 3,623,482 shares), ($16,521,688 / 1,585,160 shares), and ($4,090,904 / 325,171 shares), respectively. $ 10.03 $ 9.03 $ 9.57 -------- --------- --------- Amounts designated as "--" are $0 or have been rounded to $0. The accompanying notes are an integral part of the financial statements. 20 SEI Asset Allocation Trust / Semi-Annual Report / September 30, 2008 DIVERSIFIED DIVERSIFIED DIVERSIFIED MODERATE GLOBAL GLOBAL DIVERSIFIED GROWTH GROWTH STOCK U.S. STOCK FUND FUND FUND FUND - ----------- ----------- ----------- ----------- $ 120,337 $ 173,645 $ 83,775 $ 50,940 -- 1 -- -- 2,740 2,430 111 89 215 47 27 14 213 148 1 1 9 12 6 9 4 5 2 1 --------- --------- --------- -------- 123,518 176,288 83,922 51,054 --------- --------- --------- -------- 2,768 2,693 148 35 7,595 882 379 58 12 8 5 7 11 15 7 4 3 8 3 1 3 4 2 1 -- 1 -- -- 11 15 7 4 --------- --------- --------- -------- 10,403 3,626 551 110 --------- --------- --------- -------- $ 113,115 $ 172,662 $ 83,371 $ 50,944 --------- --------- --------- -------- $ 131,414 $ 200,775 $ 104,627 $ 73,807 619 376 (44) (29) (1,186) 2,199 (2,688) (12,098) (17,732) (30,688) (18,524) (10,736) --------- --------- --------- -------- $ 113,115 $ 172,662 $ 83,371 $ 50,944 --------- --------- --------- -------- $ 10.39 $ 10.69 $ 10.46 $ 12.62 $ 10.32 $ 10.59 $ 9.75 $ 11.80 $ 10.37 $ 10.67 $ 10.42 $ 12.58 --------- --------- --------- -------- SEI Asset Allocation Trust / Semi-Annual Report / September 30, 2008 21 Statements of Assets and Liabilities ($ Thousands) September 30, 2008 (Unaudited) DEFENSIVE DEFENSIVE STRATEGY CONSERVATIVE STRATEGY ALLOCATION STRATEGY FUND FUND FUND --------- ---------- ------------ ASSETS: Investments in Affiliated Funds, at Market Value (Cost $49,647, $18,106, $146,452, $37,257, $450,720, and $102,845, respectively.) $ 47,683 $ 16,579 $ 135,750 Cash 27 -- -- Income Distributions Receivable from Affiliated Funds 100 51 323 Receivable for Fund Shares Sold 42 -- 600 Prepaid Expenses 3 1 7 Receivable from Administrator 2 1 5 Receivable for Investment Securities Sold -- 237 1,453 -------- -------- --------- Total Assets 47,857 16,869 138,138 -------- -------- --------- LIABILITIES: Payable for Fund Shares Redeemed 211 75 1,381 Payable for Investment Securities Purchased 81 246 2,115 Investment Advisory Fees Payable 4 1 11 Trustees' Fees Payable 1 -- 2 Bank Overdraft -- 3 -- Chief Compliance Officer Fees Payable -- -- -- Accrued Expenses 3 2 8 -------- -------- --------- Total Liabilities 300 327 3,517 -------- -------- --------- Net Assets $ 47,557 $ 16,542 $ 134,621 -------- -------- --------- NET ASSETS: Paid-in Capital (unlimited authorization -- no par value) $ 52,245 $ 17,808 $ 150,057 Undistributed Net Investment Income 342 165 923 Accumulated Net Realized Gain (Loss) on Investments (3,066) 96 (5,657) Net Unrealized Depreciation on Investments (1,964) (1,527) (10,702) -------- -------- --------- Net Assets $ 47,557 $ 16,542 $ 134,621 -------- -------- --------- Net Asset Value, Offering and Redemption Price Per Share -- Class A ($47,556,721 / 5,004,059 shares), ($16,542,314 / 1,530,915 shares), ($133,320,499 / 13,604,068 shares), ($35,519,128 / 3,591,319 shares), ($404,134,500 / 39,005,087 shares), and ($97,248,440 / 7,760,927 shares), respectively. $ 9.50 $ 10.81 $ 9.80 Net Asset Value, Offering and Redemption Price Per Share -- Class I ($113.79 / 11.950 shares), ($1,300,593 / 130,949 shares), and ($1,061,632 / 100,406 shares), respectively. $ 9.52 n/a $ 9.93 -------- -------- --------- Amounts designated as "--" are $0 or have been rounded to $0. n/a -- Not applicable. Class I shares currently not offered. The accompanying notes are an integral part of the financial statements. 22 SEI Asset Allocation Trust / Semi-Annual Report / September 30, 2008 CONSERVATIVE MODERATE STRATEGY MODERATE STRATEGY ALLOCATION STRATEGY ALLOCATION FUND FUND FUND - ------------ --------- ---------- $ 35,479 $ 406,015 $ 97,718 2 -- 3 91 831 138 154 292 100 2 25 6 1 18 4 430 6,932 955 -------- --------- --------- 36,159 414,113 98,924 -------- --------- --------- 108 2,072 370 525 6,627 1,287 3 35 9 1 8 2 -- 141 -- -- 1 -- 3 33 8 -------- --------- --------- 640 8,917 1,676 -------- --------- --------- $ 35,519 $ 405,196 $ 97,248 -------- --------- --------- $ 37,167 $ 454,447 $ 102,818 295 2,586 451 (165) (7,132) (894) (1,778) (44,705) (5,127) -------- --------- --------- $ 35,519 $ 405,196 $ 97,248 -------- --------- --------- $ 9.89 $ 10.36 $ 12.53 n/a $ 10.57 n/a -------- --------- --------- SEI Asset Allocation Trust / Semi-Annual Report / September 30, 2008 23 Statements of Assets and Liabilities ($ Thousands) September 30, 2008 (Unaudited) TAX-MANAGED AGGRESSIVE AGGRESSIVE CORE MARKET STRATEGY STRATEGY STRATEGY FUND FUND FUND ---------- ----------- ----------- ASSETS: Investments in Affiliated Funds, at Market Value (Cost $456,565, $75,447, $95,110, $19,741, $722,908, and $147,103, respectively.) $363,495 $68,122 $ 82,938 Cash 2 2 -- Receivable for Investment Securities Sold 4,505 663 1,941 Receivable for Fund Shares Sold 301 -- 4 Income Distributions Receivable from Affiliated Funds 291 32 221 Prepaid Expenses 21 5 5 Receivable from Administrator 16 3 4 -------- ------- -------- Total Assets 368,631 68,827 85,113 -------- ------- -------- LIABILITIES: Payable for Investment Securities Purchased 5,425 666 1,928 Payable for Fund Shares Redeemed 1,351 5 858 Investment Advisory Fees Payable 32 6 7 Trustees' Fees Payable 7 1 2 Chief Compliance Officer Fees Payable 1 -- -- Distribution Fees Payable 1 -- -- Bank Overdraft -- -- 26 Accrued Expenses 28 6 7 -------- ------- -------- Total Liabilities 6,845 684 2,828 -------- ------- -------- Net Assets $361,786 $68,143 $ 82,285 -------- --------- -------- NET ASSETS: Paid-in Capital (unlimited authorization -- no par value) $450,762 $77,063 $ 95,046 Undistributed Net Investment Income 911 94 675 Accumulated Net Realized Gain (Loss) on Investments 3,183 (1,689) (1,264) Net Unrealized Depreciation on Investments (93,070) (7,325) (12,172) -------- ------- -------- Net Assets $361,786 $68,143 $ 82,285 -------- --------- -------- Net Asset Value, Offering and Redemption Price Per Share -- Class A ($358,098,744 / 34,730,724 shares), ($68,143,034 / 6,161,611 shares), ($82,285,357 / 8,552,062 shares), ($17,689,014 / 1,696,145 shares), ($597,859,719 / 60,446,873 shares), and ($132,386,112 / 10,739,364 shares), respectively. $ 10.31 $ 11.06 $ 9.62 Net Asset Value, Offering and Redemption Price Per Share -- Class I ($3,687,451 / 364,545 shares), ($119.81 / 12.140 shares), and ($4,561,634 / 466,308 shares), respectively. $ 10.12 n/a $ 9.87 -------- --------- -------- Amounts designated as "--" are $0 or have been rounded to $0. n/a -- Not applicable. Class I shares currently not offered. The accompanying notes are an integral part of the financial statements. 24 SEI Asset Allocation Trust / Semi-Annual Report / September 30, 2008 CORE MARKET MARKET GROWTH STRATEGY MARKET GROWTH STRATEGY ALLOCATION STRATEGY ALLOCATION FUND FUND FUND - ----------- ------------- ------------- $18,058 $ 603,268 $132,211 -- 47 -- 140 13,078 1,609 -- 759 309 8 1,078 63 1 37 9 1 27 6 ------- --------- -------- 18,208 618,294 134,207 ------- --------- -------- 288 13,330 409 227 2,426 449 2 53 12 -- 12 3 -- 2 -- -- 1 -- -- -- 937 2 49 11 ------- --------- -------- 519 15,873 1,821 ------- --------- -------- $17,689 $ 602,421 $132,386 ------- --------- -------- $19,249 $ 718,879 $147,803 24 3,346 182 99 (164) (707) (1,683) (119,640) (14,892) ------- --------- -------- $17,689 $ 602,421 $132,386 ------- --------- -------- $ 10.43 $ 9.89 $ 12.33 n/a $ 9.78 n/a ------- --------- -------- SEI Asset Allocation Trust / Semi-Annual Report / September 30, 2008 25 Statements of Operations ($ Thousands) For the six months ended September 30, 2008 (Unaudited) DIVERSIFIED DIVERSIFIED CONSERVATIVE DIVERSIFIED GLOBAL INCOME CONSERVATIVE MODERATE GROWTH FUND FUND FUND ------------ ------------ --------------- INVESTMENT INCOME: Income Distributions from Affiliated Funds $ 898 $ 1,092 $ 2,062 ------- ------- -------- EXPENSES: Administration Fees 53 68 177 Investment Advisory Fees 26 34 88 Distribution Fees -- Class D 23 19 16 Shareholder Servicing Fees -- Class D 8 6 5 Administrative Servicing Fees -- Class I 5 7 39 Trustees' Fees 2 3 7 Registration Fees 3 5 12 Printing Fees 3 3 9 Professional Fees 3 3 9 Custodian Fees/Wire Agent Fees -- 1 1 Other Expenses 1 1 3 ------- ------- -------- Total Expenses 127 150 366 ------- ------- -------- Less: Administration Fees Waived (53) (68) (177) Reimbursement from Administrator (7) (9) (22) ------- ------- -------- Net Expenses 67 73 167 ------- ------- -------- NET INVESTMENT INCOME 831 1,019 1,895 ------- ------- -------- NET REALIZED AND UNREALIZED LOSS FROM AFFILIATED FUNDS: Net Realized Loss from Sales of Affiliated Funds (631) (1,489) (3,090) Net Change in Unrealized Depreciation from Affiliated Funds (3,082) (5,463) (20,147) ------- ------- -------- Net Realized and Unrealized Loss from Affiliated Funds (3,713) (6,952) (23,237) ------- ------- -------- NET DECREASE IN NET ASSETS RESULTING FROM OPERATIONS $(2,882) $(5,933) $(21,342) ------- ------- -------- Amounts Designated as "--" are $0 or have been rounded to $0. The accompanying notes are an integral part of the financial statements. 26 SEI Asset Allocation Trust / Semi-Annual Report / September 30, 2008 DIVERSIFIED DIVERSIFIED DIVERSIFIED MODERATE GLOBAL GLOBAL DIVERSIFIED GROWTH GROWTH STOCK U.S. STOCK FUND FUND FUND FUND - ----------- ----------- ----------- ----------- $ 1,744 $ 1,428 $ 212 $ 171 -------- -------- -------- ------- 155 212 100 62 77 106 50 31 46 31 18 22 15 10 6 7 19 56 23 6 6 8 4 2 13 15 7 4 8 11 5 3 8 10 5 3 1 2 1 1 2 4 1 1 -------- -------- -------- ------- 350 465 220 142 -------- -------- -------- ------- (155) (212) (100) (62) (22) (28) (13) (8) -------- -------- -------- ------- 173 225 107 72 -------- -------- -------- ------- 1,571 1,203 105 99 -------- -------- -------- ------- (4,089) (4,484) (1,346) (798) (13,409) (25,535) (15,019) (6,910) -------- -------- -------- ------- (17,498) (30,019) (16,365) (7,708) -------- -------- -------- ------- $(15,927) $(28,816) $(16,260) $(7,609) -------- -------- -------- ------- SEI Asset Allocation Trust / Semi-Annual Report / September 30, 2008 27 Statements of Operations ($ Thousands) For the six months ended September 30, 2008 (Unaudited) DEFENSIVE DEFENSIVE STRATEGY CONSERVATIVE STRATEGY ALLOCATION STRATEGY FUND FUND FUND --------- ---------- ------------ INVESTMENT INCOME: Income Distributions from Affiliated Funds $ 769 $ 358 $ 2,134 ------- ------- -------- EXPENSES: Administration Fees 48 18 133 Investment Advisory Fees 24 9 67 Trustees' Fees 2 1 5 Chief Compliance Officer Fees -- -- -- Administrative Servicing Fees - Class I -- n/a 2 Registration Fees 5 1 8 Printing Fees 2 1 6 Professional Fees 2 1 6 Custodian Fees/Wire Agent Fees 1 -- 1 Other Expenses 1 -- 2 ------- ------- -------- Total Expenses 85 31 230 ------- ------- -------- Less: Administration Fees Waived (48) (18) (133) Reimbursement from Administrator (13) (4) (29) ------- ------- -------- Net Expenses 24 9 68 ------- ------- -------- NET INVESTMENT INCOME 745 349 2,066 ------- ------- -------- NET REALIZED AND UNREALIZED LOSS FROM AFFILIATED FUNDS: Net Realized Loss from Affiliated Funds (90) (68) (557) Net Change in Unrealized Depreciation from Affiliated Funds (1,069) (1,086) (6,964) ------- ------- -------- Net Realized and Unrealized Loss from Affiliated Funds (1,159) (1,154) (7,521) ------- ------- -------- NET DECREASE IN NET ASSETS RESULTING FROM OPERATIONS $ (414) $ (805) $ (5,455) ------- ------- -------- Amounts designated as "--" are $0 or have been rounded to $0. n/a -- Not applicable. Class I shares currently not offered. The accompanying notes are an integral part of the financial statements. 28 SEI Asset Allocation Trust / Semi-Annual Report / September 30, 2008 CONSERVATIVE MODERATE STRATEGY MODERATE STRATEGY ALLOCATION STRATEGY ALLOCATION FUND FUND FUND - ------------ -------- ---------- $ 690 $ 6,908 $ 1,215 ------- -------- ------- 40 460 117 20 230 58 2 17 4 -- 1 -- n/a 2 n/a 2 31 8 2 22 6 2 22 5 -- 4 1 1 6 2 ------- -------- ------- 69 795 201 ------- -------- ------- (40) (460) (117) (9) (103) (26) ------- -------- ------- 20 232 58 ------- -------- ------- 670 6,676 1,157 ------- -------- ------- (427) (7,779) (2,050) (1,932) (21,958) (7,062) ------- -------- ------- (2,359) (29,737) (9,112) ------- -------- ------- $(1,689) $(23,061) $(7,955) ------- -------- ------- SEI Asset Allocation Trust / Semi-Annual Report / September 30, 2008 29 Statements of Operations ($ Thousands) For the six months ended September 30, 2008 (Unaudited) TAX-MANAGED AGGRESSIVE AGGRESSIVE CORE MARKET STRATEGY STRATEGY STRATEGY FUND FUND FUND ---------- ----------- ----------- INVESTMENT INCOME: Income Distributions from Affiliated Funds $ 3,406 $ 479 $ 1,655 -------- -------- -------- EXPENSES: Administration Fees 430 84 99 Investment Advisory Fees 215 42 49 Trustees' Fees 16 3 4 Administrative Servicing Fees - Class I 5 n/a -- Chief Compliance Officer Fees 1 -- -- Registration Fees 24 6 6 Printing Fees 21 4 5 Professional Fees 20 4 5 Custodian Fees/Wire Agent Fees 4 1 1 Other Expenses 6 2 1 -------- -------- -------- Total Expenses 742 146 170 -------- -------- -------- Less: Administration Fees Waived (430) (84) (99) Reimbursement from Administrator (92) (20) (22) -------- -------- -------- Net Expenses 220 42 49 -------- -------- -------- NET INVESTMENT INCOME 3,186 437 1,606 -------- -------- -------- NET REALIZED AND UNREALIZED LOSS FROM AFFILIATED FUNDS: Net Realized Loss from Affiliated Funds (9,235) (1,581) (2,553) Net Change in Unrealized Depreciation from Affiliated Funds (55,617) (9,738) (7,780) -------- -------- -------- Net Realized and Unrealized Loss from Affiliated Funds (64,852) (11,319) (10,333) -------- -------- -------- NET DECREASE IN NET ASSETS RESULTING FROM OPERATIONS $(61,666) $(10,882) $ (8,727) -------- -------- -------- Amounts designated as "--" are $0 or have been rounded to $0. n/a -- Not applicable. Class I shares currently not offered. The accompanying notes are an integral part of the financial statements. 30 SEI Asset Allocation Trust / Semi-Annual Report / September 30, 2008 CORE MARKET MARKET GROWTH STRATEGY MARKET GROWTH STRATEGY ALLOCATION STRATEGY ALLOCATION FUND FUND FUND - ----------- ------------- ------------- $ 119 $ 8,896 $ 906 ------- -------- -------- 21 712 160 10 356 80 1 27 6 n/a 7 n/a -- 1 -- 2 43 11 1 35 8 1 34 8 -- 6 1 1 10 2 ------- -------- -------- 37 1,231 276 ------- -------- -------- (21) (712) (160) (5) (156) (36) ------- -------- -------- 11 363 80 ------- -------- -------- 108 8,533 826 ------- -------- -------- (227) (15,774) (2,942) (2,651) (74,967) (19,098) ------- -------- -------- (2,878) (90,741) (22,040) ------- -------- -------- $(2,770) $(82,208) $(21,214) ------- -------- -------- SEI Asset Allocation Trust / Semi-Annual Report / September 30, 2008 31 Statements of Changes in Net Assets ($ Thousands) For the six months ended September 30, 2008 (Unaudited) and the year ended March 31, 2008 DIVERSIFIED DIVERSIFIED DIVERSIFIED GLOBAL CONSERVATIVE INCOME CONSERVATIVE MODERATE GROWTH FUND FUND FUND --------------------- --------------------- --------------------- 4/01/08- 4/01/07- 4/01/08- 4/01/07- 4/01/08- 4/01/07- 9/30/08 3/31/08 9/30/08 3/31/08 9/30/08 3/31/08 --------- --------- --------- --------- --------- --------- OPERATIONS: Net Investment Income $ 831 $ 2,241 $ 1,019 $ 2,971 $ 1,895 $ 5,954 Net Realized Gain (Loss) from Affiliated Funds (631) (36) (1,489) 273 (3,090) (120) Capital Gain Distributions Received from Affiliated Funds -- 664 -- 1,983 -- 8,106 Net Change in Unrealized Depreciation from Affiliated Funds (3,082) (3,086) (5,463) (6,969) (20,147) (23,306) --------- --------- --------- --------- --------- --------- Net Decrease in Net Assets from Operations (2,882) (217) (5,933) (1,742) (21,342) (9,366) --------- --------- --------- --------- --------- --------- DIVIDENDS AND DISTRIBUTIONS FROM: Net Investment Income: Class A (402) (2,105) (519) (3,273) (963) (7,586) Class D (39) (242) (31) (204) (14) (205) Class I (34) (179) (50) (312) (191) (1,494) Net Realized Gains: Class A -- (320) -- (1,678) -- (3,705) Class D -- (47) -- (128) -- (121) Class I -- (27) -- (158) -- (746) --------- --------- --------- --------- --------- --------- Total Dividends and Distributions (475) (2,920) (600) (5,753) (1,168) (13,857) --------- --------- --------- --------- --------- --------- CAPITAL SHARE TRANSACTIONS(1): CLASS A: Proceeds from Shares Issued 4,559 10,818 5,531 22,340 16,975 43,251 Reinvestment of Dividends and Distributions 395 2,379 495 4,822 962 11,060 Cost of Shares Redeemed (9,988) (12,997) (17,593) (36,755) (17,824) (63,931) --------- --------- --------- --------- --------- --------- Increase (Decrease) in Net Assets Derived from Class A Transactions (5,034) 200 (11,567) (9,593) 113 (9,620) --------- --------- --------- --------- --------- --------- CLASS D: Proceeds from Shares Issued 869 791 403 1,174 277 1,993 Reinvestment of Dividends and Distributions 38 272 30 322 13 311 Cost of Shares Redeemed (578) (1,661) (597) (2,468) (1,653) (1,049) --------- --------- --------- --------- --------- --------- Increase (Decrease) in Net Assets Derived from Class D Transactions 329 (598) (164) (972) (1,363) 1,255 --------- --------- --------- --------- --------- --------- CLASS I: Proceeds from Shares Issued 1,029 1,705 1,162 6,339 3,563 17,152 Reinvestment of Dividends and Distributions 34 206 50 469 191 2,239 Cost of Shares Redeemed (1,030) (2,229) (949) (8,195) (2,687) (16,330) --------- --------- --------- --------- --------- --------- Increase (Decrease) in Net Assets Derived From Class I Transactions 33 (318) 263 (1,387) 1,067 3,061 --------- --------- --------- --------- --------- --------- Decrease in Net Assets Derived from Capital Share Transactions (4,672) (716) (11,468) (11,952) (183) (5,304) --------- --------- --------- --------- --------- --------- Net Decrease in Net Assets (8,029) (3,853) (18,001) (19,447) (22,693) (28,527) --------- --------- --------- --------- --------- --------- NET ASSETS: BEGINNING OF PERIOD 55,299 59,152 75,659 95,106 176,912 205,439 --------- --------- --------- --------- --------- --------- END OF PERIOD $ 47,270 $ 55,299 $ 57,658 $ 75,659 $ 154,219 $ 176,912 --------- --------- --------- --------- --------- --------- Undistributed Net Investment Income/ (Distributions in Excess of Net Investment Income) Included in Net Assets at End of Period $ 373 $ 17 $ 441 $ 22 $ 759 $ 32 --------- --------- --------- --------- --------- --------- (1) For Capital Share Transactions see footnote 4 in the notes to financial statements. Amounts designated as "--" are $0 or have been rounded to $0. The accompanying notes are an integral part of the financial statements. 32 SEI Asset Allocation Trust / Semi-Annual Report / September 30, 2008 DIVERSIFIED DIVERSIFIED DIVERSIFIED DIVERSIFIED MODERATE GROWTH GLOBAL GROWTH GLOBAL STOCK U.S. STOCK FUND FUND FUND FUND - --------------------- --------------------- --------------------- --------------------- 4/01/08- 4/01/07- 4/01/08- 4/01/07- 4/01/08- 4/01/07- 4/01/08- 4/01/07- 9/30/08 3/31/08 9/30/08 3/31/08 9/30/08 3/31/08 9/30/08 3/31/08 - --------- --------- --------- --------- --------- --------- --------- --------- $ 1,571 $ 5,926 $ 1,203 $ 5,540 $ 105 $ 1,788 $ 99 $ 791 (4,089) 643 (4,484) 184 (1,346) 798 (798) 1,702 -- 7,589 -- 13,722 -- 8,539 -- 3,406 (13,409) (23,877) (25,535) (36,784) (15,019) (22,238) (6,910) (13,380) - --------- --------- --------- --------- --------- --------- --------- --------- (15,927) (9,719) (28,816) (17,338) (16,260) (11,113) (7,609) (7,481) - --------- --------- --------- --------- --------- --------- --------- --------- (846) (7,680) (673) (8,666) (129) (4,287) (120) (1,900) (46) (527) (13) (335) -- (212) -- (214) (94) (884) (157) (2,088) (20) (742) (8) (164) -- (9,140) -- (5,764) -- -- -- -- -- (815) -- (296) -- -- -- -- -- (1,140) -- (1,465) -- -- -- -- - --------- --------- --------- --------- --------- --------- --------- --------- (986) (20,186) (843) (18,614) (149) (5,241) (128) (2,278) - --------- --------- --------- --------- --------- --------- --------- --------- 8,775 34,073 17,449 42,300 8,805 24,779 3,490 10,226 844 16,755 672 14,203 129 4,191 117 1,841 (54,333) (73,422) (39,713) (72,504) (16,389) (54,426) (8,725) (24,583) - --------- --------- --------- --------- --------- --------- --------- --------- (44,714) (22,594) (21,592) (16,001) (7,455) (25,456) (5,118) (12,516) - --------- --------- --------- --------- --------- --------- --------- --------- 762 2,534 703 1,575 635 1,646 399 1,195 43 1,251 12 602 -- 189 -- 151 (2,583) (6,161) (1,459) (3,372) (920) (1,745) (1,228) (5,268) - --------- --------- --------- --------- --------- --------- --------- --------- (1,778) (2,376) (744) (1,195) (285) 90 (829) (3,922) - --------- --------- --------- --------- --------- --------- --------- --------- 2,890 6,798 6,179 20,513 4,676 8,902 672 1,279 90 1,959 155 3,474 19 728 8 159 (2,565) (13,747) (7,503) (15,544) (2,200) (7,447) (649) (1,729) - --------- --------- --------- --------- --------- --------- --------- --------- 415 (4,990) (1,169) 8,443 2,495 2,183 31 (291) - --------- --------- --------- --------- --------- --------- --------- --------- (46,077) (29,960) (23,505) (8,753) (5,245) (23,183) (5,916) (16,729) - --------- --------- --------- --------- --------- --------- --------- --------- (62,990) (59,865) (53,164) (44,705) (21,654) (39,537) (13,653) (26,488) - --------- --------- --------- --------- --------- --------- --------- --------- 176,105 235,970 225,826 270,531 105,025 144,562 64,597 91,085 - --------- --------- --------- --------- --------- --------- --------- --------- $ 113,115 $ 176,105 $ 172,662 $ 225,826 $ 83,371 $ 105,025 $ 50,944 $ 64,597 - --------- --------- --------- --------- --------- --------- --------- --------- $ 619 $ 34 $ 376 $ 16 $ (44) $ -- $ (29) $ -- - --------- --------- --------- --------- --------- --------- --------- --------- SEI Asset Allocation Trust / Semi-Annual Report / September 30, 2008 33 Statements of Changes in Net Assets ($ Thousands) For the six months ended September 30, 2008 (Unaudited) and the year ended March 31, 2008 DEFENSIVE DEFENSIVE STRATEGY STRATEGY ALLOCATION FUND FUND ------------------- ------------------- 4/01/08- 4/01/07- 4/01/08- 4/01/07- 9/30/08 3/31/08 9/30/08 3/31/08 -------- -------- -------- -------- OPERATIONS: Net Investment Income $ 745 $ 3,868 $ 349 $ 761 Net Realized Gain (Loss) from Affiliated Funds (90) (3,055) (68) 48 Capital Gain Distributions Received from Affiliated Funds -- 481 -- 644 Net Change in Unrealized Depreciation from Affiliated Funds (1,069) (5,013) (1,086) (2,857) -------- -------- ------- ------- Net Decrease in Net Assets from Operations (414) (3,719) (805) (1,404) -------- -------- ------- ------- DIVIDENDS AND DISTRIBUTIONS FROM: Net Investment Income: Class A (419) (4,128) (189) (1,087) Class I -- -- n/a n/a Net Realized Gains: Class A -- (714) -- (571) Class I -- -- n/a n/a -------- -------- ------- ------- Total Dividends and Distributions (419) (4,842) (189) (1,658) -------- -------- ------- ------- CAPITAL SHARE TRANSACTIONS(1): CLASS A: Proceeds from Shares Issued 10,262 40,278 2,874 6,857 Reinvestment of Dividends and Distributions 397 4,722 180 1,575 Cost of Shares Redeemed (13,552) (94,489) (2,645) (9,099) -------- -------- ------- ------- Increase (Decrease) in Net Assets Derived from Class A Transactions (2,893) (49,489) 409 (667) -------- -------- ------- ------- CLASS I: Proceeds from Shares Issued -- -- n/a n/a Reinvestment of Dividends and Distributions -- -- n/a n/a Cost of Shares Redeemed -- -- n/a n/a -------- -------- ------- ------- Increase (Decrease) in Net Assets Derived from Class I Transactions -- -- n/a n/a -------- -------- ------- ------- Increase (Decrease) in Net Assets Derived from Capital Share Transactions (2,893) (49,489) 409 (667) -------- -------- ------- ------- Net Increase (Decrease) in Net Assets (3,726) (58,050) (585) (3,729) -------- -------- ------- ------- NET ASSETS: BEGINNING OF PERIOD 51,283 109,333 17,127 20,856 -------- -------- ------- ------- END OF PERIOD $ 47,557 $ 51,283 $16,542 $17,127 -------- -------- ------- ------- Undistributed Net Investment Income Included in Net Assets at End of Period $ 342 $ 16 $ 165 $ 5 -------- -------- ------- ------- (1) For Capital Share Transactions see footnote 4 in the notes to financial statements. Amounts designated as "--" are $0 or have been rounded to $0. n/a -- Not applicable. Class I shares currently not offered. The accompanying notes are an integral part of the financial statements. 34 SEI Asset Allocation Trust / Semi-Annual Report / September 30, 2008 CONSERVATIVE CONSERVATIVE MODERATE STRATEGY STRATEGY ALLOCATION MODERATE STRATEGY STRATEGY ALLOCATION FUND FUND FUND FUND - ------------------- ------------------- -------------------- ------------------- 4/01/08- 4/01/07- 4/01/08- 4/01/07- 4/01/08- 4/01/07- 4/01/08- 4/01/07- 9/30/08 3/31/08 9/30/08 3/31/08 9/30/08 3/31/08 9/30/08 3/31/08 - -------- -------- -------- -------- -------- --------- -------- -------- $ 2,066 $ 5,981 $ 670 $ 1,643 $ 6,676 $ 19,729 $ 1,157 $ 3,276 (557) (5,982) (427) (493) (7,779) (4,706) (2,050) (1,269) -- 2,262 -- 1,624 -- 10,386 -- 4,898 (6,964) (13,190) (1,932) (6,698) (21,958) (59,534) (7,062) (16,191) - -------- -------- ------- -------- -------- --------- -------- -------- (5,455) (10,929) (1,689) (3,924) (23,061) (34,125) (7,955) (9,286) - -------- -------- ------- -------- -------- --------- -------- -------- (1,166) (7,147) (386) (2,436) (4,181) (24,315) (720) (5,599) (11) (56) n/a n/a (9) (54) n/a n/a -- (1,273) -- (620) -- (4,866) -- (1,531) -- (14) n/a n/a -- (14) n/a n/a - -------- -------- ------- -------- -------- --------- -------- -------- (1,177) (8,490) (386) (3,056) (4,190) (29,249) (720) (7,130) - -------- -------- ------- -------- -------- --------- -------- -------- 35,256 73,234 4,679 20,335 33,206 176,785 11,549 37,635 1,112 8,066 356 2,851 4,088 28,600 679 6,758 (26,203) (79,224) (9,343) (21,857) (83,588) (193,821) (26,670) (35,747) - -------- -------- ------- -------- -------- --------- -------- -------- 10,165 2,076 (4,308) 1,329 (46,294) 11,564 (14,442) 8,646 - -------- -------- ------- -------- -------- --------- -------- -------- 206 2,123 n/a n/a 214 1,876 n/a n/a 11 68 n/a n/a 9 65 n/a n/a (337) (1,030) n/a n/a (505) (1,050) n/a n/a - -------- -------- ------- -------- -------- --------- -------- -------- (120) 1,161 n/a n/a (282) 891 n/a n/a - -------- -------- ------- -------- -------- --------- -------- -------- 10,045 3,237 (4,308) 1,329 (46,576) 12,455 (14,442) 8,646 - -------- -------- ------- -------- -------- --------- -------- -------- 3,413 (16,182) (6,383) (5,651) (73,827) (50,919) (23,117) (7,770) - -------- -------- ------- -------- -------- --------- -------- -------- 131,208 147,390 41,902 47,553 479,023 529,942 120,365 128,135 - -------- -------- ------- -------- -------- --------- -------- -------- $134,621 $131,208 $35,519 $ 41,902 $405,196 $ 479,023 $ 97,248 $120,365 - -------- -------- ------- -------- -------- --------- -------- -------- $ 923 $ 34 $ 295 $ 11 $ 2,586 $ 100 $ 451 $ 14 - -------- -------- ------- -------- -------- --------- -------- -------- SEI Asset Allocation Trust / Semi-Annual Report / September 30, 2008 35 Statements of Changes in Net Assets ($ Thousands) For the six months ended September 30, 2008 (Unaudited) and the year ended March 31, 2008 TAX-MANAGED AGGRESSIVE STRATEGY AGGRESSIVE STRATEGY FUND FUND --------------------- -------------------- 4/01/08- 4/01/07- 4/01/08- 4/01/07- 9/30/08 3/31/08 9/30/08 3/31/08 -------- --------- -------- -------- OPERATIONS: Net Investment Income $ 3,186 $ 10,762 $ 437 $ 2,010 Net Realized Loss from Affiliated Funds (9,235) (1,541) (1,581) (2,346) Capital Gain Distributions Received from Affiliated Funds -- 24,531 -- 3,796 Net Change in Unrealized Depreciation from Affiliated Funds (55,617) (71,435) (9,738) (11,010) -------- --------- -------- -------- Net Decrease in Net Assets from Operations (61,666) (37,683) (10,882) (7,550) -------- --------- -------- -------- DIVIDENDS AND DISTRIBUTIONS FROM: Net Investment Income: Class A (2,282) (20,439) (346) (3,225) Class I (19) (244) n/a n/a Net Realized Gains: Class A -- (7,104) -- (1,779) Class I -- (91) n/a n/a -------- --------- -------- -------- Total Dividends and Distributions (2,301) (27,878) (346) (5,004) -------- --------- -------- -------- CAPITAL SHARE TRANSACTIONS(1): CLASS A: Proceeds from Shares Issued 83,606 192,809 5,461 37,368 Reinvestment of Dividends and Distributions 2,245 27,378 338 4,959 Cost of Shares Redeemed (74,609) (150,084) (15,435) (41,927) -------- --------- -------- -------- Increase (Decrease) in Net Assets Derived from Class A Transactions 11,242 70,103 (9,636) 400 -------- --------- -------- -------- CLASS I: Proceeds from Shares Issued 985 6,071 n/a n/a Reinvestment of Dividends and Distributions 19 335 n/a n/a Cost of Shares Redeemed (1,858) (4,240) n/a n/a -------- --------- -------- -------- Increase (Decrease) in Net Assets Derived from Class I Transactions (854) 2,166 n/a n/a -------- --------- -------- -------- Increase (Decrease) in Net Assets Derived from Capital Share Transactions 10,388 72,269 (9,636) 400 -------- --------- -------- -------- Net Increase (Decrease) in Net Assets (53,579) 6,708 (20,864) (12,154) -------- --------- -------- -------- NET ASSETS: BEGINNING OF PERIOD 415,365 408,657 89,007 101,161 -------- --------- -------- -------- END OF PERIOD $361,786 $ 415,365 $ 68,143 $ 89,007 -------- --------- -------- -------- Undistributed Net Investment Income Included in Net Assets at End of Period $ 911 $ 26 $ 94 $ 3 -------- --------- -------- -------- (1) For Capital Share Transactions see footnote 4 in the notes to financial statements. Amounts designated as "--" are $0 or have been rounded to $0. n/a -- Not applicable. Class I shares currently not offered. The accompanying notes are an integral part of the financial statements. 36 SEI Asset Allocation Trust / Semi-Annual Report / September 30, 2008 CORE MARKET MARKET GROWTH CORE MARKET STRATEGY STRATEGY ALLOCATION MARKET GROWTH STRATEGY STRATEGY ALLOCATION FUND FUND FUND FUND - ---------------------- ---------------------- ---------------------- ---------------------- 4/01/08- 4/01/07- 4/01/08- 4/01/07- 4/01/08- 4/01/07- 4/01/08- 4/01/07- 9/30/08 3/31/08 9/30/08 3/31/08 9/30/08 3/31/08 9/30/08 3/31/08 - --------- --------- --------- --------- --------- --------- --------- --------- $ 1,606 $ 3,985 $ 108 $ 474 $ 8,533 $ 23,866 $ 826 $ 3,609 (2,553) (63) (227) (72) (15,774) (1,802) (2,942) (1,784) -- 3,014 -- 872 -- 31,831 -- 6,642 (7,780) (10,178) (2,651) (2,854) (74,967) (99,501) (19,098) (20,561) - --------- --------- --------- --------- --------- --------- --------- --------- (8,727) (3,242) (2,770) (1,580) (82,208) (45,606) (21,214) (12,094) - --------- --------- --------- --------- --------- --------- --------- --------- (963) (5,189) (85) (752) (5,286) (36,444) (649) (5,732) -- -- n/a n/a (33) (334) n/a n/a -- (1,541) -- (675) -- (11,181) -- (3,257) -- -- n/a n/a -- (114) n/a n/a - --------- --------- --------- --------- --------- --------- --------- --------- (963) (6,730) (85) (1,427) (5,319) (48,073) (649) (8,989) - --------- --------- --------- --------- --------- --------- --------- --------- 11,300 38,656 4,207 5,919 85,672 296,048 13,774 54,579 952 6,607 80 1,335 5,214 47,220 626 8,776 (26,524) (28,509) (5,139) (8,766) (123,816) (259,087) (26,695) (61,405) - --------- --------- --------- --------- --------- --------- --------- --------- (14,272) 16,754 (852) (1,512) (32,930) 84,181 (12,295) 1,950 - --------- --------- --------- --------- --------- --------- --------- --------- -- -- n/a n/a 1,181 8,703 n/a n/a -- -- n/a n/a 33 448 n/a n/a -- -- n/a n/a (3,108) (5,837) n/a n/a - --------- --------- --------- --------- --------- --------- --------- --------- -- -- n/a n/a (1,894) 3,314 n/a n/a - --------- --------- --------- --------- --------- --------- --------- --------- (14,272) 16,754 (852) (1,512) (34,824) 87,495 (12,295) 1,950 - --------- --------- --------- --------- --------- --------- --------- --------- (23,962) 6,782 (3,707) (4,519) (122,351) (6,184) (34,158) (19,133) - --------- --------- --------- --------- --------- --------- --------- --------- 106,247 99,465 21,396 25,915 724,772 730,956 166,544 185,677 - --------- --------- --------- --------- --------- --------- --------- --------- $ 82,285 $ 106,247 $ 17,689 $ 21,396 $ 602,421 $ 724,772 $ 132,386 $ 166,544 - --------- --------- --------- --------- --------- --------- --------- --------- $ 675 $ 32 $ 24 $ 1 $ 3,346 $ 132 $ 182 $ 5 - --------- --------- --------- --------- --------- --------- --------- --------- SEI Asset Allocation Trust / Semi-Annual Report / September 30, 2008 37 Financial Highlights For the six months ended September 30, 2008 (Unaudited) and the periods ended March 31, For a Share Outstanding Throughout each Period Net Realized and Unrealized Gains Distributions Net Asset (Losses) Dividends from Total Value, Net from from Net Realized Dividends Beginning Investment Affiliated Total from Investment Capital and of Period Income* Funds Operations Income Gains Distributions --------- ---------- ---------- ---------- ---------- ------------- ------------- DIVERSIFIED CONSERVATIVE INCOME FUND CLASS A 2008@ $10.75 $0.18 $(0.77) $(0.59) $(0.10) $ -- $(0.10) 2008 11.35 0.44 (0.48) (0.04) (0.49) (0.07) (0.56) 2007 11.28 0.43 0.36 0.79 (0.46) (0.26) (0.72) 2006 11.07 0.34 0.29 0.63 (0.35) (0.07) (0.42) 2005 11.22 0.27 0.02 0.29 (0.32) (0.12) (0.44) 2004 10.28 0.24 1.01 1.25 (0.24) (0.07) (0.31) CLASS D 2008@ $10.68 $0.12 $(0.76) $(0.64) $(0.07) $ -- $(0.07) 2008 11.28 0.32 (0.47) (0.15) (0.38) (0.07) (0.45) 2007 11.21 0.31 0.36 0.67 (0.34) (0.26) (0.60) 2006 11.01 0.22 0.28 0.50 (0.23) (0.07) (0.30) 2005 11.13 0.15 0.03 0.18 (0.18) (0.12) (0.30) 2004 10.20 0.14 1.00 1.14 (0.14) (0.07) (0.21) CLASS I 2008@ $10.73 $0.16 $(0.77) $(0.61) $(0.09) $ -- $(0.09) 2008 11.33 0.41 (0.48) (0.07) (0.46) (0.07) (0.53) 2007 11.26 0.40 0.36 0.76 (0.43) (0.26) (0.69) 2006 11.06 0.32 0.27 0.59 (0.32) (0.07) (0.39) 2005 11.20 0.24 0.03 0.27 (0.29) (0.12) (0.41) 2004 10.27 0.22 1.00 1.22 (0.22) (0.07) (0.29) DIVERSIFIED CONSERVATIVE FUND CLASS A 2008@ $10.06 $0.15 $(1.07) $(0.92) $(0.09) $ -- $(0.09) 2008 11.03 0.38 (0.60) (0.22) (0.50) (0.25) (0.75) 2007 10.97 0.37 0.57 0.94 (0.41) (0.47) (0.88) 2006 10.48 0.30 0.55 0.85 (0.30) (0.06) (0.36) 2005 10.50 0.27 0.14 0.41 (0.31) (0.12) (0.43) 2004 9.10 0.24 1.46 1.70 (0.23) (0.07) (0.30) CLASS D 2008@ $10.03 $0.10 $(1.06) $(0.96) $(0.06) $ -- $(0.06) 2008 11.01 0.27 (0.61) (0.34) (0.39) (0.25) (0.64) 2007 10.96 0.26 0.56 0.82 (0.30) (0.47) (0.77) 2006 10.47 0.19 0.56 0.75 (0.20) (0.06) (0.26) 2005 10.46 0.16 0.15 0.31 (0.18) (0.12) (0.30) 2004 9.06 0.14 1.46 1.60 (0.13) (0.07) (0.20) CLASS I 2008@ $10.04 $0.14 $(1.07) $(0.93) $(0.08) $ -- $(0.08) 2008 11.02 0.35 (0.61) (0.26) (0.47) (0.25) (0.72) 2007 10.96 0.34 0.57 0.91 (0.38) (0.47) (0.85) 2006 10.47 0.27 0.56 0.83 (0.28) (0.06) (0.34) 2005 10.49 0.24 0.14 0.38 (0.28) (0.12) (0.40) 2004 9.09 0.21 1.47 1.68 (0.21) (0.07) (0.28) Ratio of Expenses to Average Ratio of Net Net Assets Ratio of Net Investment (Excluding Net Asset Net Assets Expenses Income Waivers Portfolio Value, End Total End of Period to Average to Average and Reim- Turnover of Period Return+ ($ Thousands) Net Assets** Net Assets bursement)** Rate ---------- ------- ------------- ------------ ------------ ------------ --------- DIVERSIFIED CONSERVATIVE INCOME FUND CLASS A 2008@ $10.06 (5.53)% $37,092 0.12% 3.28% 0.34% 19% 2008 10.75 (0.41) 44,804 0.12 3.89 0.34 20 2007 11.35 7.21 47,155 0.12 3.76 0.35 17 2006 11.28 5.70 56,119 0.12 3.04 0.36 41 2005 11.07 2.62 57,892 0.12 2.40 0.41 27 2004 11.22 12.34 56,376 0.12 2.26 0.36 23 CLASS D 2008@ $ 9.97 (6.02)% $ 6,205 1.12% 2.28% 1.34% 19% 2008 10.68 (1.40) 6,298 1.12 2.89 1.34 20 2007 11.28 6.17 7,258 1.12 2.77 1.35 17 2006 11.21 4.53 8,453 1.12 2.02 1.36 41 2005 11.01 1.63 12,177 1.12 1.39 1.41 27 2004 11.13 11.25 13,747 1.12 1.26 1.36 23 CLASS I 2008@ $10.03 (5.70)% $ 3,973 0.37% 3.03% 0.59% 19% 2008 10.73 (0.67) 4,197 0.37 3.63 0.59 20 2007 11.33 6.96 4,739 0.37 3.51 0.60 17 2006 11.26 5.36 4,165 0.37 2.79 0.61 41 2005 11.06 2.41 3,660 0.37 2.16 0.66 27 2004 11.20 12.00 3,434 0.37 1.99 0.61 23 DIVERSIFIED CONSERVATIVE FUND CLASS A 2008@ $ 9.05 (9.20)% $47,572 0.12% 3.07% 0.34% 19% 2008 10.06 (2.28) 64,565 0.12 3.49 0.34 24 2007 11.03 8.79 80,537 0.12 3.34 0.35 32 2006 10.97 8.21 94,597 0.12 2.80 0.36 43 2005 10.48 3.93 92,261 0.12 2.55 0.41 18 2004 10.50 18.98 73,941 0.12 2.41 0.36 15 CLASS D 2008@ $ 9.01 (9.58)% $ 4,432 1.12% 2.07% 1.34% 19% 2008 10.03 (3.37) 5,099 1.12 2.50 1.34 24 2007 11.01 7.62 6,559 1.12 2.34 1.35 32 2006 10.96 7.15 8,942 1.12 1.80 1.36 43 2005 10.47 2.96 9,062 1.12 1.53 1.41 18 2004 10.46 17.85 9,124 1.12 1.41 1.36 15 CLASS I 2008@ $ 9.03 (9.28)% $ 5,654 0.37% 2.82% 0.59% 19% 2008 10.04 (2.63) 5,995 0.37 3.23 0.59 24 2007 11.02 8.54 8,010 0.37 3.12 0.60 32 2006 10.96 7.95 7,250 0.37 2.54 0.61 43 2005 10.47 3.62 7,571 0.37 2.31 0.66 18 2004 10.49 18.72 6,045 0.37 2.15 0.61 15 38 SEI Asset Allocation Trust / Semi-Annual Report / September 30, 2008 Net Realized and Unrealized Gains Distributions Net Asset (Losses) Dividends from Total Value, Net from from Net Realized Dividends, Net Asset Beginning Investment Affiliated Total from Investment Capital and Value, End Total of Period Income* Funds Operations Income Gains Distributions of Period Return+ --------- ---------- ----------- ---------- ---------- ------------- ------------- ---------- ------- DIVERSIFIED GLOBAL MODERATE GROWTH FUND CLASS A 2008@ $10.99 $0.12 $(1.43) $(1.31) $(0.07) $ -- $(0.07) $ 9.61 (11.95)% 2008 12.38 0.37 (0.93) (0.56) (0.56) (0.27) (0.83) 10.99 (4.94) 2007 11.96 0.35 0.87 1.22 (0.42) (0.38) (0.80) 12.38 10.44 2006 10.92 0.27 1.09 1.36 (0.27) (0.05) (0.32) 11.96 12.64 2005 11.12 0.25 0.41 0.66 (0.30) (0.56) (0.86) 10.92 5.99 2004 8.94 0.22 2.23 2.45 (0.21) (0.06) (0.27) 11.12 27.72 CLASS D 2008@ $10.87 $0.06 $(1.40) $(1.34) $(0.04) $ -- $(0.04) $ 9.49 (12.38)% 2008 12.26 0.25 (0.92) (0.67) (0.45) (0.27) (0.72) 10.87 (5.90) 2007 11.85 0.23 0.85 1.08 (0.29) (0.38) (0.67) 12.26 9.32 2006 10.82 0.16 1.07 1.23 (0.15) (0.05) (0.20) 11.85 11.51 2005 11.00 0.14 0.40 0.54 (0.16) (0.56) (0.72) 10.82 4.96 2004 8.85 0.12 2.20 2.32 (0.11) (0.06) (0.17) 11.00 26.46 CLASS I 2008@ $10.95 $0.11 $(1.42) $(1.31) $(0.07) $ -- $(0.07) $ 9.57 (12.06)% 2008 12.34 0.34 (0.93) (0.59) (0.53) (0.27) (0.80) 10.95 (5.19) 2007 11.93 0.33 0.85 1.18 (0.39) (0.38) (0.77) 12.34 10.13 2006 10.89 0.24 1.09 1.33 (0.24) (0.05) (0.29) 11.93 12.41 2005 11.08 0.23 0.41 0.64 (0.27) (0.56) (0.83) 10.89 5.80 2004 8.92 0.20 2.21 2.41 (0.19) (0.06) (0.25) 11.08 27.28 DIVERSIFIED MODERATE GROWTH FUND CLASS A 2008@ $11.81 $0.12 $(1.46) $(1.34) $(0.08) $ -- $(0.08) $10.39 (11.42)% 2008 13.64 0.37 (0.96) (0.59) (0.56) (0.68) (1.24) 11.81 (4.95) 2007 13.29 0.34 0.94 1.28 (0.45) (0.48) (0.93) 13.64 9.85 2006 12.20 0.27 1.11 1.38 (0.28) (0.01) (0.29) 13.29 11.41 2005 11.91 0.25 0.35 0.60 (0.27) (0.04) (0.31) 12.20 5.09 2004 9.68 0.20 2.28 2.48 (0.19) (0.06) (0.25) 11.91 25.88 CLASS D 2008@ $11.75 $0.07 $(1.46) $(1.39) $(0.04) $ -- $(0.04) $10.32 (11.83)% 2008 13.58 0.24 (0.96) (0.72) (0.43) (0.68) (1.11) 11.75 (5.94) 2007 13.24 0.22 0.92 1.14 (0.32) (0.48) (0.80) 13.58 8.70 2006 12.16 0.15 1.09 1.24 (0.15) (0.01) (0.16) 13.24 10.27 2005 11.84 0.12 0.36 0.48 (0.12) (0.04) (0.16) 12.16 4.08 2004 9.63 0.10 2.26 2.36 (0.09) (0.06) (0.15) 11.84 24.57 CLASS I 2008@ $11.80 $0.11 $(1.47) $(1.36) $(0.07) $ -- $(0.07) $10.37 (11.58)% 2008 13.63 0.34 (0.96) (0.62) (0.53) (0.68) (1.21) 11.80 (5.20) 2007 13.29 0.32 0.92 1.24 (0.42) (0.48) (0.90) 13.63 9.49 2006 12.20 0.24 1.11 1.35 (0.25) (0.01) (0.26) 13.29 11.14 2005 11.90 0.22 0.35 0.57 (0.23) (0.04) (0.27) 12.20 4.87 2004 9.67 0.18 2.28 2.46 (0.17) (0.06) (0.23) 11.90 25.61 Ratio of Expenses Ratio of to Average Net Net Assets Ratio of Investment (Excluding Net Assets Net Expenses Income Waivers Portfolio End of Period to Average to Average and Reim- Turnover ($ Thousands) Net Assets** Net Assets bursement)** Rate ------------- ------------ ---------- ------------ --------- DIVERSIFIED GLOBAL MODERATE GROWTH FUND CLASS A 2008@ $122,709 0.12% 2.21% 0.34% 21% 2008 140,606 0.12 2.99 0.34 25 2007 168,886 0.12 2.86 0.34 28 2006 178,977 0.12 2.40 0.36 58 2005 158,229 0.12 2.24 0.41 24 2004 176,704 0.12 2.12 0.36 36 CLASS D 2008@ $ 3,501 1.12% 1.17% 1.34% 21% 2008 5,325 1.12 2.09 1.34 25 2007 4,739 1.12 1.89 1.34 28 2006 7,674 1.12 1.38 1.36 58 2005 8,347 1.12 1.29 1.41 24 2004 8,829 1.12 1.18 1.36 36 CLASS I 2008@ $ 28,009 0.37% 1.95% 0.59% 21% 2008 30,981 0.37 2.78 0.59 25 2007 31,814 0.37 2.70 0.59 28 2006 18,748 0.37 2.15 0.61 58 2005 13,973 0.37 2.10 0.67 24 2004 8,408 0.37 1.96 0.62 36 DIVERSIFIED MODERATE GROWTH FUND CLASS A 2008@ $ 89,238 0.12% 2.13% 0.35% 16% 2008 147,548 0.12 2.77 0.34 13 2007 194,744 0.12 2.55 0.35 15 2006 338,254 0.12 2.15 0.36 52 2005 337,643 0.12 2.08 0.40 18 2004 200,772 0.12 1.85 0.36 17 CLASS D 2008@ $ 10,121 1.12% 1.13% 1.35% 16% 2008 13,301 1.12 1.78 1.34 13 2007 17,844 1.12 1.67 1.35 15 2006 19,586 1.12 1.15 1.36 52 2005 18,569 1.12 1.03 1.40 18 2004 20,780 1.12 0.87 1.36 17 CLASS I 2008@ $ 13,756 0.37% 1.89% 0.60% 16% 2008 15,256 0.37 2.53 0.59 13 2007 23,382 0.37 2.42 0.60 15 2006 23,262 0.37 1.91 0.61 52 2005 19,137 0.37 1.81 0.65 18 2004 10,887 0.37 1.59 0.62 17 + Returns are for the period indicated and have not been annualized. Returns shown do not reflect the deduction of taxes that a shareholder would pay on fund distributions or the redemption of fund shares. @ For the six months ended September 30, 2008 (unaudited). All ratios have been annualized. * Per share calculations were performed using average shares. ** The expense ratios do not include expenses of the underlying affiliated investment companies. The accompanying notes are an integral part of the financial statements. SEI Asset Allocation Trust / Semi-Annual Report / September 30, 2008 39 Financial Highlights For the six months ended September 30, 2008 (Unaudited) and the periods ended March 31, For a Share Outstanding Throughout each Period Net Realized and Unrealized Gains Distributions Net Asset Net (Losses) Dividends from Total Value, Investment from from Net Realized Dividends, Net Asset Beginning Income Affiliated Total from Investment Capital and Value, End Total of Period (Loss)* Funds Operations Income Gains Distributions of Period Return+ --------- ---------- ----------- ---------- ---------- ------------- ------------- ---------- ------- DIVERSIFIED GLOBAL GROWTH FUND CLASS A 2008@ $12.51 $ 0.08 $(1.85) $(1.77) $(0.05) $ -- $(0.05) $10.69 (14.17)% 2008 14.45 0.31 (1.23) (0.92) (0.61) (0.41) (1.02) 12.51 (7.04) 2007 13.61 0.29 1.22 1.51 (0.39) (0.28) (0.67) 14.45 11.29 2006 12.01 0.21 1.67 1.88 (0.21) (0.07) (0.28) 13.61 15.81 2005 11.63 0.20 0.60 0.80 (0.22) (0.20) (0.42) 12.01 6.89 2004 8.79 0.15 2.87 3.02 (0.14) (0.04) (0.18) 11.63 34.53 CLASS D 2008@ $12.42 $ 0.01 $(1.82) $(1.81) $(0.02) $ -- $(0.02) $10.59 (14.60)% 2008 14.36 0.17 (1.23) (1.06) (0.47) (0.41) (0.88) 12.42 (8.02) 2007 13.52 0.16 1.21 1.37 (0.25) (0.28) (0.53) 14.36 10.25 2006 11.93 0.08 1.66 1.74 (0.08) (0.07) (0.15) 13.52 14.69 2005 11.54 0.07 0.60 0.67 (0.08) (0.20) (0.28) 11.93 5.76 2004 8.73 0.05 2.84 2.89 (0.04) (0.04) (0.08) 11.54 33.18 CLASS I 2008@ $12.49 $ 0.06 $(1.84) $(1.78) $(0.04) $ -- $(0.04) $10.67 (14.26)% 2008 14.44 0.28 (1.24) (0.96) (0.58) (0.41) (0.99) 12.49 (7.34) 2007 13.61 0.27 1.20 1.47 (0.36) (0.28) (0.64) 14.44 10.95 2006 12.00 0.18 1.68 1.86 (0.18) (0.07) (0.25) 13.61 15.63 2005 11.62 0.17 0.60 0.77 (0.19) (0.20) (0.39) 12.00 6.59 2004 8.79 0.13 2.86 2.99 (0.12) (0.04) (0.16) 11.62 34.13 DIVERSIFIED GLOBAL STOCK FUND CLASS A 2008@ $12.52 $ 0.02 $(2.06) $(2.04) $(0.02) $ -- $(0.02) $10.46 (16.31)% 2008 14.40 0.20 (1.50) (1.30) (0.58) -- (0.58) 12.52 (9.49) 2007 13.11 0.18 1.41 1.59 (0.30) -- (0.30) 14.40 12.18 2006 11.16 0.11 1.97 2.08 (0.11) (0.02) (0.13) 13.11 18.75 2005 10.52 0.11 0.69 0.80 (0.12) (0.04) (0.16) 11.16 7.62 2004 7.50 0.07 3.02 3.09 (0.06) (0.01) (0.07) 10.52 41.32 CLASS D 2008@ $11.71 $(0.04) $(1.92) $(1.96) $ -- $ -- $ -- $ 9.75 (16.74)% 2008 13.52 0.06 (1.42) (1.36) (0.45) -- (0.45) 11.71 (10.43) 2007 12.36 0.05 1.31 1.36 (0.20) -- (0.20) 13.52 11.03 2006 10.57 (0.01) 1.86 1.85 (0.04) (0.02) (0.06) 12.36 17.53 2005 10.01 -- 0.66 0.66 (0.06) (0.04) (0.10) 10.57 6.57 2004 7.17 (0.02) 2.88 2.86 (0.01) (0.01) (0.02) 10.01 39.94 CLASS I 2008@ $12.49 $ -- $(2.06) $(2.06) $(0.01) $ -- $(0.01) $10.42 (16.48)% 2008 14.36 0.18 (1.51) (1.33) (0.54) -- (0.54) 12.49 (9.67) 2007 13.08 0.18 1.36 1.54 (0.26) -- (0.26) 14.36 11.88 2006 11.14 0.10 1.94 2.04 (0.08) (0.02) (0.10) 13.08 18.40 2005 10.50 0.10 0.67 0.77 (0.09) (0.04) (0.13) 11.14 7.35 2004 7.50 0.06 2.99 3.05 (0.04) (0.01) (0.05) 10.50 40.77 Ratio of Ratio of Expenses Net to Average Investment Net Assets Ratio of Income (Excluding Net Assets Net Expenses (Loss) Waivers Portfolio End of Period to Average to Average and Reim- Turnover ($ Thousands) Net Assets** Net Assets bursement)** Rate ------------- ------------ ---------- ------------ --------- DIVERSIFIED GLOBAL GROWTH FUND CLASS A 2008@ $127,289 0.12% 1.22% 0.34% 17% 2008 170,825 0.12 2.14 0.34 17 2007 213,992 0.12 2.07 0.34 23 2006 236,477 0.12 1.64 0.36 69 2005 206,579 0.12 1.69 0.40 16 2004 171,034 0.12 1.45 0.36 32 CLASS D 2008@ $ 6,716 1.12% 0.23% 1.34% 17% 2008 8,649 1.12 1.16 1.34 17 2007 11,161 1.12 1.13 1.34 23 2006 14,026 1.12 0.62 1.36 69 2005 13,309 1.12 0.63 1.40 16 2004 17,583 1.12 0.46 1.36 32 CLASS I 2008@ $ 38,657 0.37% 0.96% 0.59% 17% 2008 46,352 0.37 1.96 0.59 17 2007 45,378 0.37 1.96 0.59 23 2006 32,240 0.37 1.44 0.61 69 2005 22,177 0.37 1.47 0.66 16 2004 14,686 0.37 1.25 0.62 32 DIVERSIFIED GLOBAL STOCK FUND CLASS A 2008@ $ 62,736 0.12% 0.30% 0.35% 15% 2008 82,495 0.12 1.36 0.34 20 2007 120,818 0.12 1.36 0.34 23 2006 142,449 0.12 0.95 0.36 86 2005 123,048 0.12 1.07 0.41 19 2004 123,657 0.12 0.78 0.36 58 CLASS D 2008@ $ 4,113 1.12% (0.70)% 1.35% 15% 2008 5,204 1.12 0.45 1.34 20 2007 5,908 1.12 0.43 1.34 23 2006 6,046 1.12 (0.10) 1.36 86 2005 6,920 1.12 0.05 1.41 19 2004 7,969 1.12 (0.21) 1.36 58 CLASS I 2008@ $ 16,522 0.37% 0.06% 0.60% 15% 2008 17,326 0.37 1.26 0.59 20 2007 17,836 0.37 1.37 0.59 23 2006 9,110 0.37 0.82 0.61 86 2005 8,445 0.37 0.96 0.66 19 2004 3,177 0.37 0.58 0.61 58 40 SEI Asset Allocation Trust / Semi-Annual Report / September 30, 2008 Net Realized and Unrealized Net Asset Net Gains Dividends Value, Investment (Losses) from from Net Distributions Total Net Asset Beginning Income Affiliated Total from Investment from Realized Dividends and Value, End Total of Period (Loss)* Funds Operations Income Capital Gains Distributions of Period Return+ --------- ---------- ------------- ---------- ----------- ------------- ------------- ----------- ------- DIVERSIFIED U.S. STOCK FUND CLASS A 2008@ $14.52 $ 0.03 $(1.90) $(1.87) $(0.03) $ -- $(0.03) $12.62 (12.87)% 2008 16.76 0.18 (1.92) (1.74) (0.50) -- (0.50) 14.52 (10.71) 2007 15.52 0.15 1.36 1.51 (0.27) -- (0.27) 16.76 9.80 2006 13.46 0.08 2.08 2.16 (0.07) (0.03) (0.10) 15.52 16.10 2005 12.91 0.10 0.62 0.72 (0.11) (0.06) (0.17) 13.46 5.62 2004 9.48 0.09 3.42 3.51 (0.07) (0.01) (0.08) 12.91 37.24 CLASS D 2008@ $13.61 $(0.04) $(1.77) $(1.81) $ -- $ -- $ -- $11.80 (13.30)% 2008 15.75 0.01 (1.81) (1.80) (0.34) -- (0.34) 13.61 (11.66) 2007 14.60 (0.01) 1.29 1.28 (0.13) -- (0.13) 15.75 8.78 2006 12.73 (0.06) 1.96 1.90 -- (0.03) (0.03) 14.60 14.91 2005 12.25 (0.03) 0.59 0.56 (0.02) (0.06) (0.08) 12.73 4.57 2004 9.04 (0.01) 3.23 3.22 -- (0.01) (0.01) 12.25 35.68 CLASS I 2008@ $14.48 $ 0.01 $(1.89) $(1.88) $(0.02) $ -- $(0.02) $12.58 (12.97)% 2008 16.72 0.14 (1.92) (1.78) (0.46) -- (0.46) 14.48 (10.96) 2007 15.48 0.11 1.36 1.47 (0.23) -- (0.23) 16.72 9.56 2006 13.44 0.05 2.07 2.12 (0.05) (0.03) (0.08) 15.48 15.78 2005 12.89 0.08 0.61 0.69 (0.08) (0.06) (0.14) 13.44 5.35 2004 9.48 0.06 3.41 3.47 (0.05) (0.01) (0.06) 12.89 36.76 DEFENSIVE STRATEGY FUND CLASS A 2008@ $ 9.68 $ 0.15 $(0.24) $(0.09) $(0.09) $ -- $(0.09) $ 9.50 (0.98)% 2008 10.90 0.45 (1.04) (0.59) (0.51) (0.12) (0.63) 9.68 (5.63) 2007 10.58 0.48 0.36 0.84 (0.50) (0.02) (0.52) 10.90 8.08 2006 10.34 0.39 0.20 0.59 (0.33) (0.02) (0.35) 10.58 5.81 2005 10.29 0.29 0.06 0.35 (0.25) (0.05) (0.30) 10.34 3.44 2004(1) 10.00 0.14 0.15 0.29 -- -- -- 10.29 2.90 CLASS I 2008@ $ 9.68 $ 0.16 $(0.23) $(0.07) $(0.09) $ -- $(0.09) $ 9.52 (0.77)%(2) 2008 10.96 0.39 (1.04) (0.65) (0.51) (0.12) (0.63) 9.68 (6.22) 2007 10.70 0.43 0.35 0.78 (0.50) (0.02) (0.52) 10.96 7.42 2006 10.46 0.37## 0.22 0.59 (0.33) (0.02) (0.35) 10.70 5.74 2005 10.30 0.38 0.08 0.46 (0.25) (0.05) (0.30) 10.46 4.51(2) 2004(1) 10.00 0.16 0.14 0.30 -- -- -- 10.30 3.00(2) Ratio of Expenses Ratio of Net to Average Investment Net Assets Net Assets Ratio of Net Income (Excluding End of Expenses (Loss) Waivers Portfolio Period to Average to Average and Reim- Turnover ($ Thousands) Net Assets** Net Assets bursement)** Rate ------------- ------------ ------------ ------------ --------- DIVERSIFIED U.S. STOCK FUND CLASS A 2008@ $ 42,075 0.12% 0.43% 0.34% 7% 2008 53,598 0.12 1.09 0.34 11 2007 74,105 0.12 0.92 0.34 15 2006 89,770 0.12 0.57 0.37 101 2005 89,902 0.12 0.79 0.41 11 2004 100,571 0.12 0.79 0.36 27 CLASS D 2008@ $ 4,778 1.12% (0.58)% 1.34% 7% 2008 6,311 1.12 0.08 1.34 11 2007 11,205 1.12 (0.10) 1.34 15 2006 13,190 1.12 (0.43) 1.37 101 2005 12,676 1.12 (0.21) 1.41 11 2004 15,562 1.12 (0.11) 1.36 27 CLASS I 2008@ $ 4,091 0.37% 0.19% 0.59% 7% 2008 4,688 0.37 0.85 0.59 11 2007 5,775 0.37 0.69 0.59 15 2006 5,936 0.37 0.35 0.62 101 2005 4,323 0.37 0.58 0.66 11 2004 2,251 0.37 0.51 0.61 27 DEFENSIVE STRATEGY FUND CLASS A 2008@ $ 47,557 0.10% 3.09% 0.35% 17% 2008 51,283 0.10 4.25 0.34 40 2007 109,333 0.10 4.48 0.34 94 2006 99,511 0.10 3.69 0.35 46 2005 26,587 0.10 2.78 0.49 52 2004(1) 2,500 0.10 3.78 4.04 1 CLASS I 2008@ $ -- 0.10%++ 3.27% 0.35% 17% 2008 -- 0.10++ 3.68 0.34 40 2007 -- 0.10++ 3.96 0.34 94 2006 -- 0.10++ 3.69 0.35 46 2005 -- 0.10++ 2.78 0.49 52 2004(1) -- 0.10++ 3.78 4.04 1 (1) Commenced operations November 14, 2003. All ratios have been annualized. Total return has not been annualized. (2) Class I shares have not been marketed and have a limited number of shares outstanding. The total return in Class I exceeds Class A due to rounding. + Returns are for the period indicated and have not been annualized. Returns shown do not reflect the deduction of taxes that a shareholder would pay on fund distributions or the redemption of fund shares. ++ Excludes a 0.25% Administrative Servicing Fee which currently is not being charged to the Class due to the immaterial amount. @ For the six months ended September 30, 2008 (unaudited). All ratios have been annualized. * Per share calculations were performed using average shares. ** The expense ratios do not include expenses of the underlying affiliated investment companies. ## The per share amounts for net investment income (loss) between classes does not accord with the ratios of net investment income (loss) between classes due to the size of Class I relative to the other classes. Amounts designated as "--" are $0 or have been rounded to $0. The accompanying notes are an integral part of the financial statements. SEI Asset Allocation Trust / Semi-Annual Report / September 30, 2008 41 Financial Highlights For the six months ended September 30, 2008 (Unaudited) and the periods ended March 31, For a Share Outstanding Throughout each Period Net Realized and Unrealized Gains Distributions Net Asset (Losses) Dividends from Value, Net from from Net Realized Return Beginning Investment Affiliated Total from Investment Capital of of Period Income* Funds Operations Income Gains Capital --------- ---------- ---------- ---------- ---------- ------------ ------- DEFENSIVE STRATEGY ALLOCATION FUND CLASS A 2008@ $11.48 $ 0.23 $(0.78) $(0.55) $(0.12) $ -- $ -- 2008 13.55 0.51 (1.48) (0.97) (0.72) (0.38) -- 2007 12.68 0.51 1.19 1.70 (0.63) (0.20) -- 2006(6) 11.48 0.40 1.31 1.71 (0.36) (0.15) -- 2005(4) 40.84 0.88 0.16 1.04 (0.80) (0.16) (29.44)(2) 2004(1)(4) 40.00 0.80 0.04 0.84 -- -- -- CONSERVATIVE STRATEGY FUND CLASS A 2008@ $10.30 $ 0.16 $(0.57) $(0.41) $(0.09) $ -- $ -- 2008 11.68 0.44 (1.19) (0.75) (0.54) (0.09) -- 2007 11.13 0.45 0.63 1.08 (0.51) (0.02) -- 2006 10.61 0.38 0.53 0.91 (0.34) (0.05) -- 2005 10.43 0.31 0.22 0.53 (0.28) (0.07) -- 2004(1) 10.00 0.13 0.30 0.43 -- -- -- CLASS I 2008@ $10.44 $ 0.15 $(0.57) $(0.42) $(0.09) $ -- $ -- 2008 11.83 0.43 (1.22) (0.79) (0.51) (0.09) -- 2007 11.29 0.53 0.52 1.05 (0.49) (0.02) -- 2006 10.75 0.39## 0.54 0.93 (0.34) (0.05) -- 2005 10.46 0.37 0.27 0.64 (0.28) (0.07) -- 2004(1) 10.00 0.16 0.30 0.46 -- -- -- CONSERVATIVE STRATEGY ALLOCATION FUND CLASS A 2008@ $10.50 $ 0.18 $(0.68) $(0.50) $(0.11) $ -- $ -- 2008 12.20 0.41 (1.34) (0.93) (0.61) (0.16) -- 2007 11.30 0.40 1.18 1.58 (0.52) (0.16) -- 2006(7) 10.18 0.32 1.30 1.62 (0.32) (0.18) -- 2005(5) 20.90 0.52 0.48 1.00 (0.50) (0.14) (11.08)(2) 2004(1)(5) 20.00 0.24 0.66 0.90 -- -- -- MODERATE STRATEGY FUND CLASS A 2008@ $11.05 $ 0.16 $(0.75) $(0.59) $(0.10) $ -- $ -- 2008 12.43 0.44 (1.16) (0.72) (0.55) (0.11) -- 2007 11.82 0.43 0.78 1.21 (0.47) (0.13) -- 2006 11.03 0.37 0.82 1.19 (0.34) (0.06) -- 2005 10.69 0.34 0.33 0.67 (0.28) (0.05) -- 2004(1) 10.00 0.14 0.55 0.69 -- -- -- CLASS I 2008@ $11.28 $ 0.15 $(0.77) $(0.62) $(0.09) $ -- $ -- 2008 12.67 0.45 (1.21) (0.76) (0.52) (0.11) -- 2007 12.05 0.48 0.72 1.20 (0.45) (0.13) -- 2006 11.18 0.42## 0.85 1.27 (0.34) (0.06) -- 2005 10.73 0.42 0.36 0.78 (0.28) (0.05) -- 2004(1) 10.00 0.15 0.58 0.73 -- -- -- MODERATE STRATEGY ALLOCATION FUND CLASS A 2008@ $13.65 $ 0.14 $(1.18) $(1.04) $(0.08) $ -- $ -- 2008 15.41 0.37 (1.33) (0.96) (0.63) (0.17) -- 2007 14.03 0.35 1.53 1.88 (0.47) (0.03) -- 2006(7) 12.54 0.28 1.58 1.86 (0.27) (0.10) -- 2005(5) 21.16 0.52 0.58 1.10 (0.46) (0.14) (9.12)(2) 2004(1)(5) 20.00 0.30 0.86 1.16 -- -- -- Ratio of Expenses Ratio to Ratio of Net Average Net of Net Investment Net Net Asset Assets Expenses Income Assets Total Value, End to to (Excluding Dividends End of Average Average Waivers Portfolio and of Total Period Net Net and Reim- Turnover Distributions Period Return+ ($ Thousands) Assets** Assets bursement)** Rate ------------- --------- ------- ------------- -------- ---------- ------------ --------- DEFENSIVE STRATEGY ALLOCATION FUND CLASS A 2008@ $ (0.12) $10.81 (4.80)% $ 16,542 0.10% 3.96% 0.34% 23% 2008 (1.10) 11.48 (7.61) 17,127 0.10 3.95 0.34 37 2007 (0.83) 13.55 13.85 20,856 0.10 3.90 0.33 34 2006(6) (0.51) 12.68 15.10 20,027 0.10 3.74 0.36 49 2005(4) (30.40) 11.48 3.09 4,608 0.10 2.14 0.59 212 2004(1)(4) -- 40.84 2.10 1,249 0.10 5.38 8.27 5 CONSERVATIVE STRATEGY FUND CLASS A 2008@ $ (0.09) $ 9.80 (3.97)% $133,320 0.10% 3.09% 0.34% 17% 2008 (0.63) 10.30 (6.73) 129,724 0.10 3.90 0.34 66 2007 (0.53) 11.68 9.88 146,872 0.10 3.98 0.35 103 2006 (0.39) 11.13 8.72 110,248 0.10 3.48 0.35 15 2005 (0.35) 10.61 5.12 47,268 0.10 2.97 0.46 49 2004(1) -- 10.43 4.30 3,092 0.10 3.44 2.69 4 CLASS I 2008@ $ (0.09) $ 9.93 (4.09)% $ 1,301 0.35% 2.83% 0.59% 17% 2008 (0.60) 10.44 (6.95) 1,484 0.35 3.83 0.59 66 2007 (0.51) 11.83 9.49 518 0.35 4.47 0.59 103 2006 (0.39) 11.29 8.79(3) -- 0.10++ 3.48 0.35 15 2005 (0.35) 10.75 6.17(3) -- 0.10++ 2.97 0.46 49 2004(1) -- 10.46 4.60(3) -- 0.10++ 3.44 2.69 4 CONSERVATIVE STRATEGY ALLOCATION FUND CLASS A 2008@ $ (0.11) $ 9.89 (4.83)% $ 35,519 0.10% 3.36% 0.34% 19% 2008 (0.77) 10.50 (7.98) 41,902 0.10 3.53 0.34 37 2007 (0.68) 12.20 14.27 47,553 0.10 3.42 0.34 25 2006(7) (0.50) 11.30 16.29 37,197 0.10 3.22 0.37 28 2005(5) (11.72) 10.18 5.18 25,443 0.10 2.48 0.45 167 2004(1)(5) -- 20.90 4.50 3,090 0.10 3.03 2.27 -- MODERATE STRATEGY FUND CLASS A 2008@ $ (0.10) $10.36 (5.37)% $404,134 0.10% 2.89% 0.34% 12% 2008 (0.66) 11.05 (6.15) 477,612 0.10 3.64 0.34 31 2007 (0.60) 12.43 10.49 529,251 0.10 3.54 0.34 49 2006 (0.40) 11.82 10.89 342,663 0.10 3.22 0.35 6 2005 (0.33) 11.03 6.32 163,817 0.10 3.06 0.41 27 2004(1) -- 10.69 6.90 9,400 0.10 3.54 1.64 4 CLASS I 2008@ $ (0.09) $10.57 (5.51)% $ 1,062 0.35% 2.61% 0.59% 12% 2008 (0.63) 11.28 (6.32) 1,411 0.35 3.69 0.59 31 2007 (0.58) 12.67 10.22 691 0.35 3.82 0.59 49 2006 (0.40) 12.05 11.46(3) -- 0.10++ 3.22 0.35 6 2005 (0.33) 11.18 7.34(3) -- 0.10++ 3.06 0.41 27 2004(1) -- 10.73 7.30(3) -- 0.10++ 3.54 1.64 4 MODERATE STRATEGY ALLOCATION FUND CLASS A 2008@ $ (0.08) $12.53 (7.62)% $ 97,248 0.10% 1.97% 0.34% 15% 2008 (0.80) 13.65 (6.65) 120,365 0.10 2.45 0.34 16 2007 (0.50) 15.41 13.56 128,135 0.10 2.44 0.34 12 2006(7) (0.37) 14.03 14.98 91,539 0.10 2.26 0.36 12 2005(5) (9.72) 12.54 5.61 40,281 0.10 2.39 0.43 137 2004(1)(5) -- 21.16 5.80 2,118 0.10 3.94 4.71 1 42 SEI Asset Allocation Trust / Semi-Annual Report / September 30, 2008 Net Realized and Unrealized Gains Distributions Net Asset (Losses) Dividends from Total Value, Net from from Net Realized Dividends Beginning Investment Affiliated Total from Investment Capital and of Period Income* Funds Operations Income Gains Distributions --------- ---------- ---------- ---------- ---------- ------------ ------------- AGGRESSIVE STRATEGY FUND CLASS A 2008@ $12.09 $ 0.09 $(1.81) $(1.72) $(0.06) $ -- $(0.06) 2008 13.96 0.34 (1.35) (1.01) (0.64) (0.22) (0.86) 2007 13.18 0.36 1.16 1.52 (0.41) (0.33) (0.74) 2006 11.45 0.28 1.75 2.03 (0.24) (0.06) (0.30) 2005 10.89 0.30 0.56 0.86 (0.24) (0.06) (0.30) 2004(1) 10.00 0.09 0.80 0.89 -- -- -- CLASS I 2008@ $11.87 $ 0.07 $(1.76) $(1.69) $(0.06) $ -- $(0.06) 2008 13.73 0.33 (1.36) (1.03) (0.61) (0.22) (0.83) 2007 12.99 0.37 1.09 1.46 (0.39) (0.33) (0.72) 2006 11.36 0.18## 1.75 1.93 (0.24) (0.06) (0.30) 2005 10.87 0.17 0.62 0.79 (0.24) (0.06) (0.30) 2004(1) 10.00 0.18 0.69 0.87 -- -- -- TAX-MANAGED AGGRESSIVE STRATEGY FUND CLASS A 2008@ $12.85 $ 0.07 $(1.81) $(1.74) $(0.05) $ -- $(0.05) 2008 14.29 0.27 (1.06) (0.79) (0.42) (0.23) (0.65) 2007 13.26 0.26 1.15 1.41 (0.30) (0.08) (0.38) 2006 11.54 0.21 1.78 1.99 (0.19) (0.08) (0.27) 2005 10.89 0.24 0.62 0.86 (0.19) (0.02) (0.21) 2004(1) 10.00 0.06 0.83 0.89 -- -- -- CORE MARKET STRATEGY FUND CLASS A 2008@ $10.73 $ 0.17 $(1.18) $(1.01) $(0.10) $ -- $(0.10) 2008 11.72 0.43 (0.70) (0.27) (0.55) (0.17) (0.72) 2007 11.37 0.42 0.62 1.04 (0.45) (0.24) (0.69) 2006 10.73 0.35 0.67 1.02 (0.32) (0.06) (0.38) 2005 10.60 0.33 0.16 0.49 (0.28) (0.08) (0.36) 2004(1) 10.00 0.11 0.49 0.60 -- -- -- CLASS I 2008@ $11.00 $ 0.17 $(1.20) $(1.03) $(0.10) $ -- $(0.10) 2008 12.01 0.43 (0.73) (0.30) (0.54) (0.17) (0.71) 2007 11.63 0.46 0.61 1.07 (0.45) (0.24) (0.69) 2006 10.88 0.43## 0.70 1.13 (0.32) (0.06) (0.38) 2005 10.62 0.43 0.19 0.62 (0.28) (0.08) (0.36) 2004(1) 10.00 0.16 0.46 0.62 -- -- -- Ratio of Expenses Ratio to Ratio of Net Average Net of Net Investment Net Net Asset Assets Expenses Income Assets Value, End to to (Excluding End of Average Average Waivers Portfolio of Total Period Net Net and Reim- Turnover Period Return+ ($ Thousands) Assets** Assets bursement)** Rate --------- ------- ------------- -------- ---------- ------------ --------- AGGRESSIVE STRATEGY FUND CLASS A 2008@ $10.31 (14.26)% $358,099 0.10% 1.48% 0.34% 19% 2008 12.09 (7.83) 410,235 0.10 2.46 0.34 18 2007 13.96 11.74 404,880 0.10 2.68 0.34 14 2006 13.18 17.90 192,654 0.10 2.27 0.35 60 2005 11.45 7.87 73,500 0.10 2.66 0.43 13 2004(1) 10.89 8.90 6,721 0.10 2.18 2.24 2 CLASS I 2008@ $10.12 (14.33)% $ 3,687 0.35% 1.19% 0.59% 19% 2008 11.87 (8.10) 5,130 0.35 2.42 0.59 18 2007 13.73 11.47 3,777 0.35 2.74 0.59 14 2006 12.99 17.16 -- 0.10++ 2.27 0.35 60 2005 11.36 7.24 -- 0.10++ 2.66 0.43 13 2004(1) 10.87 8.70 -- 0.10++ 2.18 2.24 2 TAX-MANAGED AGGRESSIVE STRATEGY FUND CLASS A 2008@ $11.06 (13.57)% $ 68,143 0.10% 1.04% 0.35% 11% 2008 12.85 (6.05) 89,007 0.10 1.85 0.34 28 2007 14.29 10.76 101,161 0.10 1.95 0.34 12 2006 13.26 17.35 66,660 0.10 1.69 0.35 12 2005 11.54 7.90 34,131 0.10 2.11 0.50 18 2004(1) 10.89 8.90 2,664 0.10 1.39 2.16 44 CORE MARKET STRATEGY FUND CLASS A 2008@ $ 9.62 (9.45)% $ 82,285 0.10% 3.24% 0.34% 21% 2008 10.73 (2.61) 106,247 0.10 3.72 0.34 22 2007 11.72 9.35 99,465 0.10 3.62 0.34 37 2006 11.37 9.68 84,048 0.10 3.18 0.35 42 2005 10.73 4.66 40,602 0.10 3.09 0.46 55 2004(1) 10.60 6.00 5,867 0.10 2.87 2.54 6 CLASS I 2008@ $ 9.87 (9.40)%(3) $ -- 0.10%++ 3.15% 0.34% 21% 2008 11.00 (2.78) -- 0.10++ 3.60 0.34 22 2007 12.01 9.40(3) -- 0.10++ 3.94 0.34 37 2006 11.63 10.57(3) -- 0.10++ 3.18 0.35 42 2005 10.88 5.89(3) -- 0.10++ 3.09 0.46 55 2004(1) 10.62 6.20(3) -- 0.10++ 2.87 2.54 6 (1) Commenced operations November 14, 2003. All ratios have been annualized. Total return has not been annualized. (2) For more information see footnote 7 in the notes to financial statements. (3) Class I shares have not been marketed and have a limited number of shares outstanding. The total return in Class I exceeds Class A due to rounding. (4) Per share amounts have been restated for a 1 for 4 reverse stock split paid to shareholders of record on May 6, 2005. For more information see Notes 8 and 11 in the Notes to the Financial Statements. (5) Per share amounts have been restated for a 1 for 2 reverse stock split paid to shareholders of record on May 6, 2005. For more information see Notes 8 and 11 in the Notes to the Financial Statements. (6) Per share amounts have been adjusted for a 1 for 4 reverse stock split paid to shareholders of record on May 6, 2005. For more information see Note 8 in the Notes to the Financial Statements. (7) Per share amounts have been adjusted for a 1 for 2 reverse stock split paid to shareholders of record on May 6, 2005. For more information see Note 8 in the Notes to the Financial Statements. + Returns are for the period indicated and have not been annualized. Returns shown do not reflect the deduction of taxes that a shareholder would pay on fund distributions or the redemption of fund shares. ++ Excludes a 0.25% Administrative Servicing Fee which currently is not being charged to the Class due to the immaterial amount. @ For the six months ended September 30, 2008 (unaudited). All ratios have been annualized. * Per share calculations were performed using average shares. ** The expense ratios do not include expenses of the underlying affiliated investment companies. ## The per share amounts for net investment income (loss) between classes does not accord with the ratios of net investment income (loss) between classes due to the size of Class I relative to the other classes. Amounts designated as "--" are $0 or have been rounded to $0. The accompanying notes are an integral part of the financial statements. SEI Asset Allocation Trust / Semi-Annual Report / September 30, 2008 43 Financial Highlights For the six months ended September 30, 2008 (Unaudited) and the periods ended March 31, For a Share Outstanding Throughout each Period Net Realized and Unrealized Gains Distributions Net Asset (Losses) Dividends from Value, Net from from Net Realized Return Beginning Investment Affiliated Total from Investment Capital of of Period Income* Funds Operations Income Gains Capital --------- ---------- ---------- ---------- ---------- ------------- ------- CORE MARKET STRATEGY ALLOCATION FUND CLASS A 2008@ $12.12 $0.06 $(1.70) $(1.64) $(0.05) $ -- $ -- 2008 13.61 0.25 (0.99) (0.74) (0.39) (0.36) -- 2007 12.92 0.25 1.12 1.37 (0.30) (0.38) -- 2006(6) 11.32 0.19 1.74 1.93 (0.17) (0.16) -- 2005(4) 21.08 0.56 0.46 1.02 (0.42) (0.10) (10.26)(2) 2004(1)(4) 20.00 1.80 (0.72) 1.08 -- -- -- MARKET GROWTH STRATEGY FUND CLASS A 2008@ $11.30 $0.13 $(1.46) $(1.33) $(0.08) $ -- $ -- 2008 12.71 0.39 (1.03) (0.64) (0.59) (0.18) -- 2007 12.18 0.39 0.86 1.25 (0.43) (0.29) -- 2006 11.02 0.32 1.17 1.49 (0.28) (0.05) -- 2005 10.63 0.33 0.36 0.69 (0.25) (0.05) -- 2004(1) 10.00 0.08 0.55 0.63 -- -- -- CLASS I 2008@ $11.18 $0.12 $(1.45) $(1.33) $(0.07) $ -- $ -- 2008 12.59 0.38 (1.05) (0.67) (0.56) (0.18) -- 2007 12.04 0.41 0.84 1.25 (0.41) (0.29) -- 2006 10.84 0.36## 1.17 1.53 (0.28) (0.05) -- 2005 10.58 0.15 0.41 0.56 (0.25) (0.05) -- 2004(1) 10.00 0.17 0.41 0.58 -- -- -- MARKET GROWTH STRATEGY ALLOCATION FUND CLASS A 2008@ $14.33 $0.07 $(2.01) $(1.94) $(0.06) $ -- $ -- 2008 15.95 0.30 (1.20) (0.90) (0.46) (0.26) -- 2007 14.82 0.29 1.28 1.57 (0.34) (0.10) -- 2006(7) 12.89 0.24 1.94 2.18 (0.22) (0.03) -- 2005(5) 15.99 0.36 0.62 0.98 (0.35) (0.16) (3.57)(2) 2004(1)(5) 15.00 0.09 0.90 0.99 -- -- -- Ratio of Expenses Ratio to Ratio of Net Average Net of Net Investment Net Net Asset Assets Expenses Income Assets Total Value, End to to (Excluding Dividends End of Average Average Waivers Portfolio and of Total Period Net Net and Reim- Turnover Distributions Period Return+ ($ Thousands) Assets** Assets bursement)** Rate ------------- --------- ------- ------------- -------- ---------- ------------ --------- CORE MARKET STRATEGY ALLOCATION FUND CLASS A 2008@ $ (0.05) $10.43 (13.58)% $ 17,689 0.10% 1.04% 0.34% 24% 2008 (0.75) 12.12 (6.01) 21,396 0.10 1.83 0.34 24 2007 (0.68) 13.61 10.74 25,915 0.10 1.92 0.34 21 2006(6) (0.33) 12.92 17.29 20,456 0.10 1.67 0.36 34 2005(4) (10.78) 11.32 5.53 13,474 0.10 2.61 0.57 159 2004(1)(4) -- 21.08 5.40 382 0.10 23.19 64.00 -- MARKET GROWTH STRATEGY FUND CLASS A 2008@ $ (0.08) $ 9.89 (11.81)% $597,860 0.10% 2.39% 0.34% 18% 2008 (0.77) 11.30 (5.43) 717,739 0.10 3.11 0.34 18 2007 (0.72) 12.71 10.50 726,306 0.10 3.15 0.34 14 2006 (0.33) 12.18 13.72 466,959 0.10 2.74 0.35 44 2005 (0.30) 11.02 6.50 208,538 0.10 2.98 0.40 8 2004(1) -- 10.63 6.30 11,707 0.10 2.02 1.55 13 CLASS I 2008@ $ (0.07) $ 9.78 (11.92)% $ 4,562 0.35% 2.10% 0.59% 18% 2008 (0.74) 11.18 (5.70) 7,033 0.35 3.09 0.59 18 2007 (0.70) 12.59 10.66(3) 4,650 0.35 3.23 0.59 14 2006 (0.33) 12.04 14.32(3) -- 0.10++ 2.74 0.35 44 2005 (0.30) 10.84 5.29 -- 0.10++ 2.98 0.40 8 2004(1) -- 10.58 5.80 -- 0.10++ 2.02 1.55 13 MARKET GROWTH STRATEGY ALLOCATION FUND CLASS A 2008@ $ (0.06) $12.33 (13.59)% $132,386 0.10% 1.03% 0.34% 11% 2008 (0.72) 14.33 (6.10) 166,544 0.10 1.85 0.34 21 2007 (0.44) 15.95 10.69 185,677 0.10 1.91 0.34 10 2006(7) (0.25) 14.82 17.02 127,791 0.10 1.77 0.36 8 2005(5) (4.08) 12.89 6.42 55,765 0.10 2.25 0.43 71 2004(1)(5) -- 15.99 6.60 11,608 0.10 1.48 0.87 1 (1) Commenced operations November 14, 2003. All ratios have been annualized. Total return has not been annualized. (2) For more information see footnote 7 in the notes to financial statements. (3) Class I have not been marketed and have a limited number of shares outstanding. The total return in Class I exceeds Class A due to rounding. (4) Per share amounts have been restated for a 1 for 2 reverse stock split paid to shareholders of record on May 6, 2005. For more information see Notes 8 and 11 in the Notes to the Financial Statements. (5) Per share amounts have been restated for a 2 for 3 reverse stock split paid to shareholders of record on May 6, 2005. For more information see Notes 8 and 11 in the Notes to the Financial Statements. (6) Per share amounts have been adjusted for a 1 for 2 reverse stock split paid to shareholders of record on May 6, 2005. For more information see Note 8 in the Notes to the Financial Statements. (7) Per share amounts have been adjusted for a 2 for 3 reverse stock split paid to shareholders of record on May 6, 2005. For more information see Note 8 in the Notes to the Financial Statements. + Returns are for the period indicated and have not been annualized. Returns shown do not reflect the deduction of taxes that a shareholder would pay on fund distributions or the redemption of fund shares. ++ Excludes a 0.25% Administrative Servicing Fee which currently is not being charged due to the immaterial amount. @ For the six months ended September 30, 2008 (unaudited). All ratios have been annualized. * Per share calculations were performed using average shares. ** The expense ratios do not include expenses of the underlying affiliated investment companies. ## The per share amounts for net investment income (loss) between classes does not accord with the ratios of net investment income (loss) between classes due to the size of Class I relative to the other classes. Amounts designated as "--" are $0 or have been rounded to $0. The accompanying notes are an integral part of the financial statements. 44 SEI Asset Allocation Trust / Semi-Annual Report / September 30, 2008 Notes to Financial Statements (Unaudited) September 30, 2008 1. ORGANIZATION SEI Asset Allocation Trust (the "Trust") is organized as a Massachusetts Business Trust under a Declaration of Trust dated November 20, 1995. The Trust is registered under the Investment Company Act of 1940, as amended ("1940 Act"), as an open-end investment company with nineteen diversified Funds: Diversified Conservative Income Fund, Diversified Conservative Fund, Diversified Global Moderate Growth Fund, Diversified Moderate Growth Fund, Diversified Global Growth Fund, Diversified Global Stock Fund, Diversified U.S. Stock Fund, Defensive Strategy Fund, Defensive Strategy Allocation Fund, Conservative Strategy Fund, Conservative Strategy Allocation Fund, Moderate Strategy Fund, Moderate Strategy Allocation Fund, Aggressive Strategy Fund, Tax-Managed Aggressive Strategy Fund, Core Market Strategy Fund, Core Market Strategy Allocation Fund, Market Growth Strategy Fund and Market Growth Strategy Allocation Fund (each a "Fund," collectively the "Funds"). Each Fund is a "fund of funds" and offers shareholders the opportunity to invest in certain underlying affiliated investment companies, which are separately-managed series of the following investment companies: SEI Daily Income Trust, SEI Institutional Managed Trust, SEI Institutional International Trust, and SEI Liquid Asset Trust. The Declaration of Trust permits the Trust to offer separate classes of shares in each Fund, as follows: Diversified Conservative Income Fund, Diversified Conservative Fund, Diversified Global Moderate Growth Fund, Diversified Moderate Growth Fund, Diversified Global Growth Fund, Diversified Global Stock Fund and Diversified U.S. Stock Fund offer Class A Shares, Class D Shares, and Class I Shares; Defensive Strategy Fund, Conservative Strategy Fund, Moderate Strategy Fund, Aggressive Strategy Fund, Core Market Strategy Fund and Market Growth Strategy Fund offer Class A and Class I Shares (formerly Class D Shares); Defensive Strategy Allocation Fund, Conservative Strategy Allocation Fund, Moderate Strategy Allocation Fund, Tax-Managed Aggressive Strategy Fund, Core Market Strategy Allocation Fund, and Market Growth Strategy Allocation Fund offer Class A Shares. The assets of each Fund are segregated, and a shareholder's interest is limited to the Fund in which shares are held. The Trust's prospectus provides a description of each Fund's investment objective, policies and strategies. 2. SIGNIFICANT ACCOUNTING POLICIES The following is a summary of the significant accounting policies followed by the Funds. USE OF ESTIMATES -- The preparation of financial statements, in conformity with accounting principles generally accepted in the United States of America, requires management to make estimates and assumptions that affect the reported amount of assets and liabilities and disclosure of contingent assets at the date of the financial statements, and the reported results of operations during the reporting period. Actual results could differ from those estimates. SECURITY VALUATION -- The assets of each Fund consist primarily of the investments in underlying affiliated investment companies, which are valued at their respective daily net asset values in accordance with Board-approved pricing procedures. The Funds adopted Financial Accounting Standards Board Statement of Financial Accounting Standards No. 157, Fair Value Measurements ("FAS 157"), effective December 1, 2007. In accordance with FAS 157, fair value is defined as the price that the Fund would receive upon selling an investment in a timely transaction to an independent buyer in the principal or most advantageous market of the investment. FAS 157 established a three-tier hierarchy to maximize the use of the observable market data and minimize the use of unobservable inputs and to establish classification of the fair value measurements for disclosure purposes. Inputs refer broadly to the assumptions that market participants would use in pricing the asset technique used to measure fair value including such a pricing model and/or the risk inherent in the inputs to the valuation technique. Inputs may be observable or unobservable. Observable inputs are inputs that reflect the assumptions market participants would use in pricing the asset or liability developed based on market data obtained from sources independent of the reporting entity. Unobservable inputs are inputs that reflect the reporting entity's own assumptions about the assumptions market participants would use in pricing the asset or liability developed based on the best information available in the circumstances. The three-tier hierarchy of inputs is summarized in the three broad Levels listed below: - Level 1 - quoted prices in active markets for identical investments - Level 2 - other significant observable inputs (including quoted prices for similar investments, interest rates, prepayment speeds, credit risks, etc.) - Level 3 - significant unobservable inputs (including the Fund's own assumptions in determining the fair value of investments) The valuation techniques used by the Funds to measure fair value during the six months ended September 30, 2008 maximized the use of observable inputs and minimized the use of unobservable inputs. SEI Asset Allocation Trust / Semi-Annual Report / September 30, 2008 45 NOTES TO FINANCIAL STATEMENTS (Unaudited) (Continued) September 30, 2008 The following is a summary of the inputs used as of September 30, 2008 in valuing the Funds' investments carried at value: Investments in Securities Level 1 Level 2 Level 3 Total - ------------------------- -------- ------- ------- -------- Diversified Conservative Income Fund $ 47,231 $-- $-- $ 47,231 Diversified Conservative Fund 57,990 -- -- 57,990 Diversified Global Moderate Growth Fund 153,797 -- -- 153,797 Diversified Moderate Growth Fund 120,337 -- -- 120,337 Diversified Global Growth Fund 173,645 -- -- 173,645 Diversified Global Stock Fund 83,775 -- -- 83,775 Diversified US Stock Fund 50,940 -- -- 50,940 Defensive Strategy Fund 47,683 -- -- 47,683 Defensive Strategy Allocation Fund 16,579 -- -- 16,579 Conservative Strategy Fund 135,750 -- -- 135,750 Conservative Strategy Allocation Fund 35,479 -- -- 35,479 Moderate Strategy Fund 406,015 -- -- 406,015 Moderate Strategy Allocation Fund 97,718 -- -- 97,718 Aggressive Strategy Fund 363,495 -- -- 363,495 Tax-Managed Aggressive Strategy Fund 68,122 -- -- 68,122 Core Market Strategy Fund 82,938 -- -- 82,938 Core Market Strategy Allocation Fund 18,058 -- -- 18,058 Market Growth Strategy Fund 603,268 -- -- 603,268 Market Growth Strategy Allocation Fund 132,211 -- -- 132,211 SECURITY TRANSACTIONS AND RELATED INCOME -- Security transactions are accounted for on trade date. Dividend income received from the affiliated funds is recognized on the ex-dividend date and is recorded as income distributions in the Statement of Operations. Capital gain distributions received from the affiliated funds are recognized on ex-dividend date and are recorded on the Statement of Operations as such. Costs used in determining realized gains and losses on the sales of investment securities are on the basis of specific identification. CLASSES -- Class-specific expenses are borne by that class of shares. Income, realized and unrealized gains/losses and non-class-specific expenses are allocated to the respective classes on the basis of relative daily net assets. EXPENSES -- Expenses that are directly related to one of the Funds are charged directly to that Fund. Other operating expenses of the Trust are allocated to the Funds on the basis of relative daily net assets. Expenses included in the accompanying financial statements reflect the expenses of each Fund and do not include any expenses associated with the underlying funds. DIVIDENDS AND DISTRIBUTIONS TO SHAREHOLDERS -- Dividends and distributions to shareholders which are determined in accordance with Federal tax regulations are recorded on the ex-dividend date. Distributions from net investment income are declared and paid to shareholders periodically for each Fund. Any net realized capital gain for each Fund is distributed to shareholders at least annually. 3. AGREEMENTS AND OTHER TRANSACTIONS WITH AFFILIATES ADMINISTRATION AND TRANSFER AGENCY AGREEMENT -- SEI Investments Global Funds Services (the "Administrator") provides the Trust with administrative and transfer agency services. For its services, the Administrator is entitled to a fee, which is calculated daily and paid monthly, at an annual rate of 0.20% of the average daily net assets of each Fund. The Administrator has voluntarily agreed to waive all or a portion of its fees and to reimburse the Funds so that the total annual expenses of each Fund will not exceed the expense limitations adopted by the Administrator. These waivers and reimbursements may be terminated by the Administrator at any time at its sole discretion. The following are the voluntary expense limitations: Class A Class D Class I ------- ------- ------- Diversified Conservative Income Fund 0.12% 1.12% 0.37% Diversified Conservative Fund 0.12% 1.12% 0.37% Diversified Global Moderate Growth Fund 0.12% 1.12% 0.37% Diversified Moderate Growth Fund 0.12% 1.12% 0.37% Diversified Global Growth Fund 0.12% 1.12% 0.37% Diversified Global Stock Fund 0.12% 1.12% 0.37% Diversified U.S. Stock Fund 0.12% 1.12% 0.37% Defensive Strategy Fund 0.10% -- 0.35%* Defensive Strategy Allocation Fund 0.10% -- -- Conservative Strategy Fund 0.10% -- 0.35% Conservative Strategy Allocation Fund 0.10% -- -- Moderate Strategy Fund 0.10% -- 0.35% Moderate Strategy Allocation Fund 0.10% -- -- Aggressive Strategy Fund 0.10% -- 0.35% Tax-Managed Aggressive Strategy Fund 0.10% -- -- Core Market Strategy Fund 0.10% -- 0.35%* Core Market Strategy Allocation Fund 0.10% -- -- Market Growth Strategy Fund 0.10% -- 0.35% Market Growth Strategy Allocation Fund 0.10% -- -- * Includes a 0.25% Administrative Servicing Fee which currently is not being charged to the Class due to the immaterial amount. 46 SEI Asset Allocation Trust / Semi-Annual Report / September 30, 2008 DISTRIBUTION, ADMINISTRATIVE SERVICING AND SHAREHOLDER SERVICING AGREEMENTS -- SEI Investments Distribution Co. (the "Distributor"), a wholly owned subsidiary of SEI Investments Company ("SEI") and a registered broker-dealer, acts as the Distributor of the shares of the Trust under a Distribution Agreement. The Trust has adopted plans under which firms, including the Distributor, that provide shareholder and administrative services may receive compensation thereof. Specific classes of certain funds have also adopted distribution plans, pursuant to Rule 12b-1 under the Investment Company Act of 1940. Such plans provide fees payable to the Distributor equal to the following amounts, calculated as a percentage of the average daily net assets attributable to each particular class of each respective fund. Shareholder Administrative Servicing Servicing Distribution Fees Fees Fees* ----------- -------------- ------------ Diversified Conservative Income Fund Class D 0.25% -- 0.75% Class I -- 0.25% -- Diversified Conservative Fund Class D 0.25% -- 0.75% Class I -- 0.25% -- Diversified Global Moderate Growth Fund Class D 0.25% -- 0.75% Class I -- 0.25% -- Diversified Moderate Growth Fund Class D 0.25% -- 0.75% Class I -- 0.25% -- Diversified Global Growth Fund Class D 0.25% -- 0.75% Class I -- 0.25% -- Diversified Global Stock Fund Class D 0.25% -- 0.75% Class I -- 0.25% -- Diversified U.S. Stock Fund Class D 0.25% -- 0.75% Class I -- 0.25% -- Defensive Strategy Fund Class I -- 0.25%** -- Conservative Strategy Fund Class I -- 0.25% -- Moderate Strategy Fund Class I -- 0.25% -- Aggressive Strategy Fund Class I -- 0.25% -- Core Market Strategy Fund Class I -- 0.25%** -- Market Growth Strategy Fund Class I -- 0.25% -- * These payments are characterized as "compensation" and are not directly tied to expenses incurred by the Distributor. The payments the Distributor receives during any year may therefore be higher or lower than its actual expenses. ** This fee is not currently being charged to the Class due to the immaterial amount. The Distributor may voluntarily waive all or a portion of the shareholder servicing fees for Class D of each fund. Such waivers are voluntary and may be discontinued at any time. There were no waivers by the Distributor during the six months ended September 30, 2008. Certain officers and Trustees of the Trust are also officers and/or Directors of the Administrator or the Adviser. The Trust pays each unaffiliated Trustee an annual fee for attendance at quarterly, interim, and committee meetings. The Administrator or the Adviser pays compensation of officers and affiliated Trustees. A portion of the services provided by the Chief Compliance Officer ("CCO") and his staff, whom are employees of the Administrator, are paid for by the Trust as incurred. The services include regulatory oversight of the Trust's Adviser and service providers as required by SEC regulations. The CCO's services have been approved by and are reviewed by the Board. INVESTMENT ADVISORY AGREEMENT -- SEI Investments Management Corporation ("SIMC") serves as investment adviser (the "Adviser") to each Fund. In connection with serving as investment adviser, SIMC is entitled to a fee, which is calculated daily and paid monthly, at an annual rate of 0.10% of each Fund's average daily net assets. The Administrator, Distributor, and Adviser for the Trust serve in the same capacity for the underlying affiliated investment companies. SIMC is the sole shareholder of Class I Shares of Defensive Strategy Fund and Core Market Strategy Fund. SEI Asset Allocation Trust / Semi-Annual Report / September 30, 2008 47 NOTES TO FINANCIAL STATEMENTS (Unaudited) 4. CAPITAL SHARE TRANSACTIONS Capital Share Transactions for the funds were as follows (Thousands): For the six months ended September 30, 2008 and the year ended March 31, 2008 DIVERSIFIED CONSERVATIVE DIVERSIFIED DIVERSIFIED GLOBAL DIVERSIFIED INCOME CONSERVATIVE MODERATE GROWTH MODERATE GROWTH FUND FUND FUND FUND ------------------ ------------------ ------------------ ------------------ 4/01/08- 4/01/07- 4/01/08- 4/01/07- 4/01/08- 4/01/07- 4/01/08- 4/01/07- 9/30/08 3/31/08 9/30/08 3/31/08 9/30/08 3/31/08 9/30/08 3/31/08 -------- -------- -------- -------- -------- -------- -------- -------- SHARES ISSUED AND REDEEMED: CLASS A: Shares Issued 427 959 561 2,073 1,538 3,512 753 2,602 Shares Issued in Lieu of Cash Distributions 38 212 51 447 90 911 74 1,277 Shares Redeemed (944) (1,160) (1,777) (3,398) (1,659) (5,270) (4,734) (5,659) ---- ------ ------ ------ ------ ------ ------ ------ Total Class A Transactions (479) 11 (1,165) (878) (31) (847) (3,907) (1,780) ---- ------ ------ ------ ------ ------ ------ ------ CLASS D: Shares Issued 83 71 41 108 26 163 65 192 Shares Issued in Lieu of Cash Distributions 4 24 3 30 1 26 4 96 Shares Redeemed (54) (149) (60) (226) (148) (86) (220) (470) ---- ------ ------ ------ ------ ------ ------ ------ Total Class D Transactions 33 (54) (16) (88) (121) 103 (151) (182) ---- ------ ------ ------ ------ ------ ------ ------ CLASS I: Shares Issued 99 152 119 575 330 1,403 247 502 Shares Issued in Lieu of Cash Distributions 3 19 5 43 17 186 8 149 Shares Redeemed (97) (198) (95) (748) (251) (1,337) (222) (1,073) ---- ------ ------ ------ ------ ------ ------ ------ Total Class I Transactions 5 (27) 29 (130) 96 252 33 (422) ---- ------ ------ ------ ------ ------ ------ ------ Decrease in Capital Shares (441) (70) (1,152) (1,096) (56) (492) (4,025) (2,384) ---- ------ ------ ------ ------ ------ ------ ------ DIVERSIFIED DIVERSIFIED DIVERSIFIED GLOBAL GROWTH GLOBAL STOCK U.S. STOCK FUND FUND FUND ------------------ ------------------ ------------------ 4/01/08- 4/01/07- 4/01/08- 4/01/07- 4/01/08- 4/01/07- 9/30/08 3/31/08 9/30/08 3/31/08 9/30/08 3/31/08 -------- -------- -------- -------- -------- -------- SHARES ISSUED AND REDEEMED: CLASS A: Shares Issued 1,388 2,962 706 1,711 242 615 Shares Issued in Lieu of Cash Distributions 56 1,001 11 294 8 111 Shares Redeemed (3,189) (5,112) (1,305) (3,810) (607) (1,456) ------ ------ ------ ------ ---- ------ Total Class A Transactions (1,745) (1,149) (588) (1,805) (357) (730) ------ ------ ------ ------ ---- ------ CLASS D: Shares Issued 56 110 54 121 29 75 Shares Issued in Lieu of Cash Distributions 1 43 -- 14 -- 10 Shares Redeemed (120) (233) (76) (128) (88) (333) ------ ------ ------ ------ ---- ------ Total Class D Transactions (63) (80) (22) 7 (59) (248) ------ ------ ------ ------ ---- ------ CLASS I: Shares Issued 502 1,428 379 619 46 77 Shares Issued in Lieu of Cash Distributions 13 246 2 51 1 10 Shares Redeemed (602) (1,106) (183) (525) (46) (108) ------ ------ ------ ------ ---- ------ Total Class I Transactions (87) 568 198 145 1 (21) ------ ------ ------ ------ ---- ------ Decrease in Capital Shares (1,895) (661) (412) (1,653) (415) (999) ------ ------ ------ ------ ---- ------ Amounts designated as "--" are $0 or have been rounded to $0. 48 SEI Asset Allocation Trust / Semi-Annual Report / September 30, 2008 4. CAPITAL SHARE TRANSACTIONS (Continued) Capital Share Transactions for the funds were as follows (Thousands): For the six months ended September 30, 2008 and the year ended March 31, 2008 DEFENSIVE STRATEGY CONSERVATIVE DEFENSIVE STRATEGY ALLOCATION STRATEGY FUND FUND FUND ------------------ ------------------ ------------------ 4/01/08- 4/01/07- 4/01/08- 4/01/07- 4/01/08- 4/01/07- 9/30/08 3/31/08 9/30/08 3/31/08 9/30/08 3/31/08 -------- -------- -------- -------- -------- -------- SHARES ISSUED AND REDEEMED: CLASS A: Shares Issued 1,062 3,820 251 535 3,452 6,499 Shares Issued in Lieu of Cash Distributions 41 449 16 125 109 721 Shares Redeemed (1,398) (9,000) (228) (707) (2,551) (7,196) ------ ------ ---- ---- ------ ------ Total Class A Transactions (295) (4,731) 39 (47) 1,010 24 ------ ------ ---- ---- ------ ------ CLASS I: Shares Issued -- -- n/a n/a 20 183 Shares Issued in Lieu of Cash Distributions -- -- n/a n/a 1 6 Shares Redeemed -- -- n/a n/a (32) (91) ------ ------ ---- ---- ------ ------ Total Class I Transactions -- -- n/a n/a (11) 98 ------ ------ ---- ---- ------ ------ Increase (Decrease) in Capital Shares (295) (4,731) 39 (47) 999 122 ------ ------ ---- ---- ------ ------ CONSERVATIVE MODERATE STRATEGY STRATEGY ALLOCATION MODERATE STRATEGY ALLOCATION FUND FUND FUND ------------------ ------------------ ------------------ 4/01/08- 4/01/07- 4/01/08- 4/01/07- 4/01/08- 4/01/07- 9/30/08 3/31/08 9/30/08 3/31/08 9/30/08 3/31/08 -------- -------- -------- -------- -------- -------- SHARES ISSUED AND REDEEMED: CLASS A: Shares Issued 445 1,747 3,003 14,430 840 2,423 Shares Issued in Lieu of Cash Distributions 35 249 377 2,390 51 447 Shares Redeemed (881) (1,903) (7,583) (16,203) (1,945) (2,372) ---- ------ ------ ------- ------ ------ Total Class A Transactions (401) 93 (4,203) 617 (1,054) 498 ---- ------ ------ ------- ------ ------ CLASS I: Shares Issued n/a n/a 19 150 n/a n/a Shares Issued in Lieu of Cash Distributions n/a n/a 1 5 n/a n/a Shares Redeemed n/a n/a (45) (85) n/a n/a ---- ------ ------ ------- ------ ------ Total Class I Transactions n/a n/a (25) 70 n/a n/a ---- ------ ------ ------- ------ ------ Increase in Capital Shares (401) 93 (4,228) 687 (1,054) 498 ---- ------ ------ ------- ------ ------ Amounts designated as "--" are $0 or have been rounded to $0. n/a -- Not applicable. Class I shares currently not offered. SEI Asset Allocation Trust / Semi-Annual Report / September 30, 2008 49 NOTES TO FINANCIAL STATEMENTS (Unaudited) (Continued) September 30, 2008 4. CAPITAL SHARE TRANSACTIONS (Concluded) Capital Share Transactions for the funds were as follows (Thousands): For the six months ended September 30, 2008 and the year ended March 31, 2008 TAX-MANAGED AGGRESSIVE AGGRESSIVE CORE STRATEGY STRATEGY MARKET STRATEGY FUND FUND FUND ------------------ ------------------ ------------------ 4/01/08- 4/01/07- 4/01/08- 4/01/07- 4/01/08- 4/01/07- 9/30/08 3/31/08 9/30/08 3/31/08 9/30/08 3/31/08 -------- -------- -------- -------- -------- -------- SHARES ISSUED AND REDEEMED: CLASS A: Shares Issued 6,816 13,986 425 2,528 1,063 3,325 Shares Issued in Lieu of Cash Distributions 192 2,003 27 341 91 575 Shares Redeemed (6,205) (11,056) (1,216) (3,023) (2,508) (2,480) ------ ------- ------ ------ ------ ------ Total Class A Transactions 803 4,933 (764) (154) (1,354) 1,420 ------ ------- ------ ------ ------ ------ CLASS I: Shares Issued 85 452 n/a n/a -- -- Shares Issued in Lieu of Cash Distributions 2 25 n/a n/a -- -- Shares Redeemed (154) (320) n/a n/a -- -- ------ ------- ------ ------ ------ ------ Total Class I Transactions (67) 157 n/a n/a -- -- ------ ------- ------ ------ ------ ------ Increase (Decrease) in Capital Shares 736 5,090 (764) (154) (1,354) 1,420 ------ ------- ------ ------ ------ ------ CORE MARKET MARKET GROWTH STRATEGY STRATEGY ALLOCATION MARKET GROWTH ALLOCATION FUND STRATEGY FUND FUND ------------------ ------------------ ------------------ 4/01/08- 4/01/07- 4/01/08- 4/01/07- 4/01/08- 4/01/07- 9/30/08 3/31/08 9/30/08 3/31/08 9/30/08 3/31/08 -------- -------- -------- -------- -------- -------- SHARES ISSUED AND REDEEMED: CLASS A: Shares Issued 350 426 7,577 23,507 977 3,338 Shares Issued in Lieu of Cash Distributions 7 97 476 3,797 45 542 Shares Redeemed (426) (662) (11,137) (20,906) (1,903) (3,902) ---- ---- ------- ------- ------ ------ Total Class A Transactions (69) (139) (3,084) 6,398 (881) (22) ---- ---- ------- ------- ------ ------ CLASS I: Shares Issued n/a n/a 109 700 n/a n/a Shares Issued in Lieu of Cash Distributions n/a n/a 3 37 n/a n/a Shares Redeemed n/a n/a (275) (477) n/a n/a ---- ---- ------- ------- ------ ------ Total Class I Transactions n/a n/a (163) 260 n/a n/a ---- ---- ------- ------- ------ ------ Increase (Decrease) in Capital Shares (69) (139) (3,247) 6,658 (881) (22) ---- ---- ------- ------- ------ ------ Amounts designated as "--" are $0 or have been rounded to $0. n/a -- Not applicable. Class I shares currently not offered. 50 SEI Asset Allocation Trust / Semi-Annual Report / September 30, 2008 5. INVESTMENT TRANSACTIONS The cost of security purchases and the proceeds from the sale of securities during the six months ended September 30, 2008, were as follows ($ Thousands): Total -------- Diversified Conservative Income Fund PURCHASES $ 7,928 SALES 10,636 Diversified Conservative Fund PURCHASES 12,998 SALES 22,883 Diversified Global Moderate Growth Fund PURCHASES 37,097 SALES 39,243 Diversified Moderate Growth Fund PURCHASES 24,419 SALES 62,330 Diversified Global Growth Fund PURCHASES 35,229 SALES 58,124 Diversified Global Stock Fund PURCHASES 14,875 SALES 20,644 Diversified U.S. Stock Fund PURCHASES 4,506 SALES 10,507 Defensive Strategy Fund PURCHASES 2,838 SALES 3,857 Defensive Strategy Allocation Fund PURCHASES 4,587 SALES 3,955 Conservative Strategy Fund PURCHASES 34,137 SALES 22,687 Conservative Strategy Allocation Fund PURCHASES 7,625 SALES 11,735 Moderate Strategy Fund PURCHASES 55,866 SALES 98,728 Moderate Strategy Allocation Fund PURCHASES 17,669 SALES 31,405 Aggressive Strategy Fund PURCHASES 89,779 SALES 78,745 Tax-Managed Aggressive Strategy Fund PURCHASES 9,012 SALES 18,514 Core Market Strategy Fund PURCHASES 20,523 SALES 33,169 Core Market Strategy Allocation Fund PURCHASES 4,903 SALES 5,515 Market Growth Strategy Fund PURCHASES 126,945 SALES 156,928 Market Growth Strategy Allocation Fund PURCHASES 17,590 SALES 29,484 6. FEDERAL TAX INFORMATION It is each Fund's intention to continue to qualify as a regulated investment company under Subchapter M of the Internal Revenue Code for Federal income tax purposes and distribute substantially all of its taxable income (including net capital gains). Accordingly, no provision for Federal income taxes is required. Management has analyzed the Funds' tax position taken on federal income tax returns for all open tax years and has concluded that as of March 31, 2008, no provision for income tax would be required in the Funds' financial statements. The Funds' federal and state income and federal excise tax returns for tax years for which the applicable statutes of limitations have not expired are subject to examination by the Internal Revenue Service and state departments of revenue. RECLASSIFICATION OF COMPONENTS OF NET ASSETS -- The timing and characterization of certain income and capital gains distributions are determined annually in accordance with Federal tax regulations which may differ from accounting principles generally accepted in the United States of America. As a result, net investment income (loss) and net realized gain (loss) on investment transactions for a reporting period may differ significantly from distributions during such period. These book/tax differences may be temporary or permanent in nature. To the extent these differences are permanent, they are charged or credited to paid-in capital, accumulated net realized gain (loss) or undistributed net investment income (loss), as appropriate, in the period that the differences arise. SEI Asset Allocation Trust / Semi-Annual Report / September 30, 2008 51 NOTES TO FINANCIAL STATEMENTS (Unaudited) (Continued) September 30, 2008 6. FEDERAL TAX INFORMATION (Continued) The tax character of dividends and distributions paid during the years ended March 31, 2008 and March 31, 2007 were as follows ($ Thousands): Ordinary Long-term Tax Return Income Capital Gain of Capital Totals ----------------- ----------------- ----------- ----------------- 2008 2007 2008 2007 2008 2007 2008 2007 ------- ------- ------- ------- ---- ---- ------- ------- Diversified Conservative Income Fund $ 2,675 $ 2,458 $ 245 $ 1,313 $-- $-- $ 2,920 $ 3,771 Diversified Conservative Fund 4,239 3,925 1,514 3,645 -- -- 5,753 7,570 Diversified Global Moderate Growth Fund 10,031 7,838 3,826 5,013 -- -- 13,857 12,851 Diversified Moderate Growth Fund 13,446 9,129 6,740 7,846 -- -- 20,186 16,975 Diversified Global Growth Fund 12,749 8,388 5,865 3,737 -- -- 18,614 12,125 Diversified Global Stock Fund 5,241 2,955 -- -- -- 1 5,241 2,956 Diversified U.S. Stock Fund 2,278 1,507 -- -- -- 2 2,278 1,509 Defensive Strategy Fund 4,280 5,060 562 65 -- -- 4,842 5,125 Defensive Strategy Allocation Fund 1,103 1,060 555 251 -- -- 1,658 1,311 Conservative Strategy Fund 7,487 5,974 1,003 87 -- -- 8,490 6,061 Conservative Strategy Allocation Fund 2,439 2,032 617 494 -- -- 3,056 2,526 Moderate Strategy Fund 24,890 19,033 4,359 3,840 -- -- 29,249 22,873 Moderate Strategy Allocation Fund 5,709 3,830 1,421 41 -- -- 7,130 3,871 Aggressive Strategy Fund 21,199 11,976 6,679 5,901 -- -- 27,878 17,877 Tax-Managed Aggressive Strategy Fund 3,352 1,992 1,652 486 -- -- 5,004 2,478 Core Market Strategy Fund 5,407 4,458 1,323 1,522 -- -- 6,730 5,980 Core Market Strategy Allocation Fund 846 632 581 658 -- -- 1,427 1,290 Market Growth Strategy Fund 37,690 25,836 10,383 11,933 -- -- 48,073 37,769 Market Growth Strategy Allocation Fund 5,900 3,668 3,089 954 -- -- 8,989 4,622 As of March 31, 2008, the components of Distributable Earnings/(Accumulated Losses) on a tax basis were as follows ($ Thousands): Total Distributable Undistributed Undistributed Post- Unrealized Earnings/ Ordinary Long-Term Capital Loss October Appreciation (Accumulated Income Capital Gain Carryforwards Losses Other (Depreciation) Losses) ------------- ------------- ------------- ------- ----- -------------- ------------- Diversified Conservative Income Fund $ 17 $ 289 $ -- $ -- $-- $ (2,028) $ (1,722) Diversified Conservative Fund 58 842 -- -- -- (2,148) (1,248) Diversified Global Moderate Growth Fund 32 4,248 -- -- -- (5,888) (1,608) Diversified Moderate Growth Fund 33 3,042 -- -- -- (4,461) (1,386) Diversified Global Growth Fund 15 7,529 -- -- -- (5,998) 1,546 Diversified Global Stock Fund -- -- (780) -- -- (4,067) (4,847) Diversified U.S. Stock Fund -- -- (11,201) -- -- (3,925) (15,126) Defensive Strategy Fund 19 -- -- (2,804) (3) (1,067) (3,855) Defensive Strategy Allocation Fund 9 259 -- -- (4) (536) (272) Conservative Strategy Fund 37 -- (127) (4,615) (3) (4,096) (8,804) Conservative Strategy Allocation Fund 14 552 -- -- (4) (135) 427 Moderate Strategy Fund 102 1,810 -- -- (3) (23,909) (22,000) Moderate Strategy Allocation Fund 18 1,431 -- -- (3) 1,659 3,105 Aggressive Strategy Fund 29 14,196 -- -- (4) (39,230) (25,009) Tax-Managed Aggressive Strategy Fund 7 149 -- -- (4) 2,156 2,308 Core Market Strategy Fund 58 1,866 -- -- (3) (4,992) (3,071) Core Market Strategy Allocation Fund 5 406 -- -- (4) 888 1,295 Market Growth Strategy Fund 134 17,398 -- -- (3) (46,460) (28,931) Market Growth Strategy Allocation Fund 8 2,632 -- -- (4) 3,810 6,446 Amounts designated as "--" are $0 or have been rounded to $0. Post-October losses represent losses realized on investment transactions from November 1, 2007 through March 31, 2008 that, in accordance with Federal income tax regulations, the Trust has elected to defer and treat as having arisen in the following fiscal year. 52 SEI Asset Allocation Trust / Semi-Annual Report / September 30, 2008 6. FEDERAL TAX INFORMATION (Concluded) The Funds had capital loss carryforwards at March 31, 2008 as follows ($ Thousands): Years Expiring Amounts -------- ------- Diversified Global Stock Fund 2015 $ 780 ------- $ 780 ======= Diversified U.S. Stock Fund 2015 $11,201 ------- $11,201 ======= Conservative Strategy Fund 2016 $ 127 ------- $ 127 ======= For Federal income tax purposes, the capital loss carryforwards may be carried forward for a maximum of eight years to offset any net realized capital gains. The Federal tax cost and aggregate gross unrealized appreciation and depreciation on investments held by the Funds at September 30, 2008, were as follows ($ Thousands): Net Federal Appreciated Depreciated Unrealized Tax Cost Securities Securities Depreciation -------- ----------- ----------- ------------ Diversified Conservative Income Fund $ 52,506 $ 3 $ (5,278) $ (5,275) Diversified Conservative Fund 65,811 99 (7,920) (7,821) Diversified Global Moderate Growth Fund 180,401 95 (26,699) (26,604) Diversified Moderate Growth Fund 139,184 5 (18,852) (18,847) Diversified Global Growth Fund 205,972 89 (32,416) (32,327) Diversified Global Stock Fund 103,152 52 (19,429) (19,377) Diversified U.S. Stock Fund 61,815 1 (10,876) (10,875) Defensive Strategy Fund 49,876 266 (2,459) (2,193) Defensive Strategy Allocation Fund 18,186 184 (1,791) (1,607) Conservative Strategy Fund 146,862 1,689 (12,801) (11,112) Conservative Strategy Allocation Fund 37,452 1,516 (3,489) (1,973) Moderate Strategy Fund 453,238 6,042 (53,265) (47,223) Moderate Strategy Allocation Fund 103,451 2,783 (8,516) (5,733) Aggressive Strategy Fund 462,262 104 (98,871) (98,767) Tax-Managed Aggressive Strategy Fund 75,972 743 (8,593) (7,850) Core Market Strategy Fund 96,067 11 (13,140) (13,129) Core Market Strategy Allocation Fund 19,879 107 (1,928) (1,821) Market Growth Strategy Fund 729,984 152 (126,868) (126,716) Market Growth Strategy Allocation Fund 148,248 1,567 (17,604) (16,037) 7. IN-KIND DISTRIBUTION During a review of March 31, 2005 year-end tax information, it was determined that certain distributions of interest income derived from underlying municipal bond funds were classified as taxable interest income when distributed to shareholders of the Defensive Strategy Allocation, Conservative Strategy Allocation, Moderate Strategy Allocation, Core Market Strategy Allocation and Market Growth Strategy Allocation Funds (the "Strategy Allocation Funds"). It was determined that under the current tax code, the fund-of-funds structure caused distributions of interest income from underlying municipal bond funds to lose their tax-exempt character when the Strategy Allocation Funds distributed that income to their shareholders. The tax characteristics would be preserved, however, if the shareholders held the municipal bond funds directly rather than through a fund of funds. As a result, the Funds' Board of Trustees decided to distribute shares of the underlying municipal bond funds held in the Strategy Allocation Funds to shareholders in the form of an in-kind distribution. This option had the benefit of enabling shareholders to hold interests in the municipal bond funds directly, thereby being able to take advantage of the tax-exempt character of the interest distributed by those funds, while also preserving for such investors the original investment strategy they sought to achieve within the Strategy Allocation Funds. On March 29, 2005, each Strategy Allocation Fund recorded an in-kind dividend equal to the fair market value of the municipal bond funds held by the Funds. The tax character of this in-kind distribution is presented below ($ Thousands): Realized Return of Total Income Gains Capital Value ------ -------- --------- ------- Defensive Strategy Allocation Fund $104 $ 1 $11,847 $11,952 Conservative Strategy Allocation Fund 319 12 27,664 27,995 Moderate Strategy Allocation Fund 330 23 28,181 28,534 Core Market Strategy Allocation 146 78 12,227 12,451 Market Growth Strategy Allocation Fund 481 369 15,411 16,261 SEI has made certain payments to shareholders of the Funds related to this matter. These payments were made from SEI's own assets and had no impact on the assets of the Funds. SEI Asset Allocation Trust / Semi-Annual Report / September 30, 2008 53 NOTES TO FINANCIAL STATEMENTS (Unaudited) (Concluded) September 30, 2008 8. REVERSE SHARE SPLIT On May 6, 2005, the Defensive Strategy Allocation Fund, Conservative Strategy Allocation Fund, Moderate Strategy Allocation Fund, Core Market Strategy Allocation Fund and Market Growth Strategy Allocation Fund (the "Strategy Allocation Funds") declared a reverse share split, as approved by the Board of Trustees, in order to bring the NAV of each Fund above $10 per share. The details of the reverse split are as follows: Split Ratio ------- Defensive Strategy Allocation Fund 1 for 4 Conservative Strategy Allocation Fund 1 for 2 Moderate Strategy Allocation Fund 1 for 2 Core Market Strategy Allocation Fund 1 for 2 Market Growth Strategy Allocation Fund 2 for 3 9. INVESTMENT RISKS In the normal course of business, the Funds enter into contracts that provide general indemnifications by the Fund to the counterparty of the contract. The Funds' maximum exposure under these arrangements is dependent on future claims that may be made against the Funds and, therefore, cannot be established; however, based on experience, the risk of loss from such claims is considered remote. 10. CONCENTRATION RISK In the normal course of business, the Funds invest solely in underlying funds that are comprised of fixed income and equity securities in specific industries, and that may engage in short selling activities, writing option contracts, and equity swaps, and therefore, the Funds may be affected by events in these industries. The Funds' Statement of Additional Information provides a description of concentration and risk associated with the different investments in the underlying affiliated investment companies. 11. RESTATEMENT OF PREVIOUSLY ISSUED FINANCIAL STATEMENTS On May 6, 2005, prior to the issuance of the 2005 financial statements, the Strategy Allocation Funds declared reverse stock splits (see Note 8). The effects of the reverse stock splits should have been reflected retroactively in the March 31, 2005 financial statements for the periods ended March 31, 2005 and March 31, 2004. The per share information included in the financial highlights has been restated to properly reflect the effects of the reverse split on a retroactive basis. 54 SEI Asset Allocation Trust / Semi-Annual Report / September 30, 2008 SEI ASSET ALLOCATION TRUST -- SEPTEMBER 30, 2008 Disclosure of Fund Expenses (Unaudited) All mutual funds have operating expenses. As a shareholder of a mutual fund, your investment is affected by these ongoing costs, which include among others costs for portfolio management, administrative services, and shareholder reports like this one. It is important for you to understand the impact of these costs on your investment returns. Operating expenses such as these are deducted from a mutual fund's gross income and directly reduce your final investment return. These expenses are expressed as a percentage of a mutual fund's average net assets; this percentage is known as a mutual fund's expense ratio. The following examples use the expense ratio and are intended to help you understand the ongoing costs (in dollars) of investing in your Fund and to compare these costs with those of other mutual funds. The examples are based on an investment of $1,000 made at the beginning of the period shown and held for the entire period. The table below illustrates your Fund's costs in two ways. - - ACTUAL FUND RETURN. This section helps you to estimate the actual expenses after fee waivers that your Fund incurred over the period. The "Expenses Paid During Period" column shows the actual dollar expense cost incurred by a $1,000 investment in the Fund, and the "Ending Account Value" number is derived from deducting that expense cost from the Fund's gross investment return. You can use the information, together with the actual amount you invested in the Fund, to estimate the expenses that you paid over that period. Simply divide your ending starting account value by $1,000 to arrive at the ratio (for example, an $8,600 account value divided by $1,000 = 8.6), then multiply that ratio by the number shown for your Fund under "Expenses Paid During Period." - - HYPOTHETICAL 5% RETURN. This section helps you compare your Fund's costs with those of other mutual funds. It assumes that the Fund had an annual 5% return before expenses during the year, but that the expense ratio (Column 3) for the period is unchanged. This example is useful in making comparisons because the Securities and Exchange Commission requires all mutual funds to make this 5% calculation. You can assess your Fund's comparative cost by comparing the hypothetical result of your Fund in the "Expenses Paid During Period" column with the those that appear in the same charts in the shareholder reports for other mutual funds. NOTE: Because the return is set at 5% for comparison purposes -- NOT your Fund's actual return -- the account values shown may not apply to your specific investment. BEGINNING ENDING EXPENSES ACCOUNT ACCOUNT ANNUALIZED PAID VALUE VALUE EXPENSE DURING 4/1/08 9/30/08 RATIOS PERIOD* --------- ------------- ---------- -------- DIVERSIFIED CONSERVATIVE INCOME FUND ACTUAL FUND RETURN Class A $1,000.00 $ 944.70 0.12% $0.59 Class D 1,000.00 939.80 1.12 5.45 Class I 1,000.00 943.00 0.37 1.80 HYPOTHETICAL 5% RETURN Class A $1,000.00 $1,024.47 0.12% $0.61 Class D 1,000.00 1,019.45 1.12 5.67 Class I 1,000.00 1,023.21 0.37 1.88 DIVERSIFIED CONSERVATIVE FUND ACTUAL FUND RETURN Class A $1,000.00 $ 908.00 0.12% $0.57 Class D 1,000.00 904.20 1.12 5.35 Class I 1,000.00 907.20 0.37 1.77 HYPOTHETICAL 5% RETURN Class A $1,000.00 $1,024.47 0.12% $0.61 Class D 1,000.00 1,019.45 1.12 5.67 Class I 1,000.00 1,023.21 0.37 1.88 DIVERSIFIED GLOBAL MODERATE GROWTH FUND ACTUAL FUND RETURN Class A $1,000.00 $ 880.50 0.12% $0.57 Class D 1,000.00 876.20 1.12 5.27 Class I 1,000.00 879.40 0.37 1.74 HYPOTHETICAL 5% RETURN Class A $1,000.00 $1,024.47 0.12% $0.61 Class D 1,000.00 1,019.45 1.12 5.67 Class I 1,000.00 1,023.21 0.37 1.88 BEGINNING ENDING EXPENSES ACCOUNT ACCOUNT ANNUALIZED PAID VALUE VALUE EXPENSE DURING 4/1/08 9/30/08 RATIOS PERIOD* --------- ------------- ---------- -------- DIVERSIFIED MODERATE GROWTH FUND ACTUAL FUND RETURN Class A $1,000.00 $ 885.80 0.12% $0.57 Class D 1,000.00 881.70 1.12 5.28 Class I 1,000.00 884.20 0.37 1.75 HYPOTHETICAL 5% RETURN Class A $1,000.00 $1,024.47 0.12% $0.61 Class D 1,000.00 1,019.45 1.12 5.67 Class I 1,000.00 1,023.21 0.37 1.88 DIVERSIFIED GLOBAL GROWTH FUND ACTUAL FUND RETURN Class A $1,000.00 $ 858.30 0.12% $0.56 Class D 1,000.00 854.00 1.12 5.21 Class I 1,000.00 857.40 0.37 1.72 HYPOTHETICAL 5% RETURN Class A $1,000.00 $1,024.47 0.12% $0.61 Class D 1,000.00 1,019.45 1.12 5.67 Class I 1,000.00 1,023.21 0.37 1.88 DIVERSIFIED GLOBAL STOCK FUND ACTUAL FUND RETURN Class A $1,000.00 $ 836.90 0.12% $0.55 Class D 1,000.00 832.60 1.12 5.15 Class I 1,000.00 835.20 0.37 1.70 HYPOTHETICAL 5% RETURN Class A $1,000.00 $1,024.47 0.12% $0.61 Class D 1,000.00 1,019.45 1.12 5.67 Class I 1,000.00 1,023.21 0.37 1.88 SEI Asset Allocation Trust / Semi-Annual Report / September 30, 2008 55 SEI ASSET ALLOCATION TRUST -- SEPTEMBER 30, 2008 Disclosure of Fund Expenses (Unaudited) (Concluded) BEGINNING ENDING EXPENSES ACCOUNT ACCOUNT ANNUALIZED PAID VALUE VALUE EXPENSE DURING 4/1/08 9/30/08 RATIOS PERIOD* --------- ------------- ---------- -------- DIVERSIFIED U.S. STOCK FUND ACTUAL FUND RETURN Class A $1,000.00 $ 871.30 0.12% $0.56 Class D 1,000.00 867.00 1.12 5.24 Class I 1,000.00 870.30 0.37 1.73 HYPOTHETICAL 5% RETURN Class A $1,000.00 $1,024.47 0.12% $0.61 Class D 1,000.00 1,019.45 1.12 5.67 Class I 1,000.00 1,023.21 0.37 1.88 DEFENSIVE STRATEGY FUND ACTUAL FUND RETURN Class A $1,000.00 $ 990.20 0.10% $0.50 Class I 1,000.00 992.30 0.10 0.50 HYPOTHETICAL 5% RETURN Class A $1,000.00 $1,024.57 0.10% $0.51 Class I 1,000.00 1,024.57 0.10 0.51 DEFENSIVE STRATEGY ALLOCATION FUND ACTUAL FUND RETURN Class A $1,000.00 $ 952.00 0.10% $0.49 HYPOTHETICAL 5% RETURN Class A $1,000.00 $1,024.57 0.10% $0.51 CONSERVATIVE STRATEGY FUND ACTUAL FUND RETURN Class A $1,000.00 $ 960.30 0.10% $0.49 Class I 1,000.00 959.10 0.35 1.72 HYPOTHETICAL 5% RETURN Class A $1,000.00 $1,024.57 0.10% $0.51 Class I 1,000.00 1,023.31 0.35 1.78 CONSERVATIVE STRATEGY ALLOCATION FUND ACTUAL FUND RETURN Class A $1,000.00 $ 951.70 0.10% $0.49 HYPOTHETICAL 5% RETURN Class A $1,000.00 $1,024.57 0.10% $0.51 MODERATE STRATEGY FUND ACTUAL FUND RETURN Class A $1,000.00 $ 946.30 0.10% $0.49 Class I 1,000.00 944.90 0.35 1.71 HYPOTHETICAL 5% RETURN Class A $1,000.00 $1,024.57 0.10% $0.51 Class I 1,000.00 1,023.31 0.35 1.78 MODERATE STRATEGY ALLOCATION FUND ACTUAL FUND RETURN Class A $1,000.00 $ 923.80 0.10% $0.48 HYPOTHETICAL 5% RETURN Class A $1,000.00 $1,024.57 0.10% $0.51 BEGINNING ENDING EXPENSES ACCOUNT ACCOUNT ANNUALIZED PAID VALUE VALUE EXPENSE DURING 4/1/08 9/30/08 RATIOS PERIOD* --------- ------------- ---------- -------- AGGRESSIVE STRATEGY FUND ACTUAL FUND RETURN Class A $1,000.00 $ 857.40 0.10% $0.47 Class I 1,000.00 856.70 0.35 1.63 HYPOTHETICAL 5% RETURN Class A $1,000.00 $1,024.57 0.10% $0.51 Class I 1,000.00 1,023.31 0.35 1.78 TAX-MANAGED AGGRESSIVE STRATEGY FUND ACTUAL FUND RETURN Class A $1,000.00 $ 864.30 0.10% $0.47 HYPOTHETICAL 5% RETURN Class A $1,000.00 $1,024.57 0.10% $0.51 CORE MARKET STRATEGY FUND ACTUAL FUND RETURN Class A $1,000.00 $ 905.50 0.10% $0.48 Class I 1,000.00 906.00 0.10 0.48 HYPOTHETICAL 5% RETURN Class A $1,000.00 $1,024.57 0.10% $0.51 Class I 1,000.00 1,024.57 0.10 0.51 CORE MARKET STRATEGY ALLOCATION FUND ACTUAL FUND RETURN Class A $1,000.00 $ 864.20 0.10% $0.47 HYPOTHETICAL 5% RETURN Class A $1,000.00 $1,024.57 0.10% $0.51 MARKET GROWTH STRATEGY FUND ACTUAL FUND RETURN Class A $1,000.00 $ 881.90 0.10% $0.47 Class I 1,000.00 880.80 0.35 1.65 HYPOTHETICAL 5% RETURN Class A $1,000.00 $1,024.57 0.10% $0.51 Class I 1,000.00 1,023.31 0.35 1.78 MARKET GROWTH STRATEGY ALLOCATION FUND ACTUAL FUND RETURN Class A $1,000.00 $ 864.10 0.10% $0.47 HYPOTHETICAL 5% RETURN Class A $1,000.00 $1,024.57 0.10% $0.51 * EXPENSES ARE EQUAL TO THE FUND'S ANNUALIZED EXPENSE RATIO MULTIPLIED BY THE AVERAGE ACCOUNT VALUE OVER THE PERIOD, MULTIPLIED BY 183/365 (TO REFLECT THE ONE-HALF YEAR PERIOD SHOWN). 56 SEI Asset Allocation Trust / Semi-Annual Report / September 30, 2008 Supplemental Financial Information SIMT Large Cap Diversified Alpha Fund Annual Report September 30, 2008 SEI Asset Allocation Trust / Semi-Annual Report / September 30, 2008 57 SCHEDULE OF INVESTMENTS Large Cap Diversified Alpha Fund September 30, 2008 SECTOR WEIGHTINGS# (UNAUDITED): (PERFORMANCE GRAPH) Information Technology 16.0% Financials 12.0% Mortgage-Backed Securities 12.0% Health Care 10.2% Energy 9.0% Consumer Discretionary 8.9% Industrials 8.9% Consumer Staples 6.4% Short-Term Investment 4.8% Materials 2.7% Asset-Backed Securities 2.6% Utilities 2.4% Telecommunication Services 2.3% U.S. Government Agency Obligations 0.9% U.S. Treasury Obligations 0.9% # Percentages based on total investments. Market Value Description Shares ($ Thousands) - -------------------------------------------- --------------- --------------- COMMON STOCK -- 94.0% CONSUMER DISCRETIONARY -- 10.6% Abercrombie & Fitch, Cl A 3,400 $ 134 Advance Auto Parts 3,600 143 Aeropostale* (A) 49,300 1,583 Amazon.com* 101,500 7,385 American Eagle Outfitters 17,500 267 American Greetings, Cl A 6,300 96 AnnTaylor Stores* 11,500 237 Apollo Group, Cl A* 16,000 949 Ascent Media, Cl A* 1,125 27 Autoliv 17,000 574 Autozone* 1,283 158 Bed Bath & Beyond* 3,800 119 Best Buy (A) 42,063 1,577 Big Lots* (A) 134,068 3,731 BorgWarner 13,600 446 Boyd Gaming 29,900 280 Brinker International 36,900 660 Burger King Holdings 2,000 49 Cablevision Systems, Cl A (A) 11,262 283 California Pizza Kitchen* 22,600 291 Career Education* 1,679 27 Carnival 4,000 141 CBS, Cl B 45,199 659 Centex 6,000 97 Central European Media Enterprises, Cl A* 1,700 111 Christopher & Banks 25,300 194 Coach* (A) 130,795 3,275 Comcast, Cl A (A) 200,172 3,929 Darden Restaurants (A) 30,700 879 Deckers Outdoor* 2,900 302 DeVry 2,000 99 Dick's Sporting Goods* 3,400 67 DIRECTV Group* (A) 177,796 4,653 Market Value Description Shares ($ Thousands) - -------------------------------------------- --------------- --------------- Discovery Communications, Cl A* 11,250 $ 160 Discovery Communications, Cl C* 11,250 159 Dollar Tree* 19,500 709 DR Horton 12,900 168 Eastman Kodak 161,560 2,485 Expedia* 29,231 442 Family Dollar Stores 6,800 161 Federal Mogul, Cl A* 5,360 67 Ford Motor* (A) 288,658 1,501 GameStop, Cl A* 15,900 544 Gannett 67,831 1,147 Gap (A) 117,400 2,087 Garmin 600 20 General Motors 11,900 112 Gentex 36,400 521 Genuine Parts 3,263 131 Goodyear Tire & Rubber* 11,100 170 Guess? 10,690 372 Gymboree* (A) 31,200 1,108 H&R Block (A) 226,078 5,143 Hanesbrands* 7,300 159 Harman International Industries 25,728 877 Hasbro (A) 61,100 2,121 Home Depot (A) 142,700 3,695 HSN* 5,780 64 International Game Technology 37,800 649 International Speedway, Cl A 4,200 163 Interpublic Group* (A) 306,647 2,377 ITT Educational Services* 10,300 833 J.C. Penney 34,300 1,144 John Wiley & Sons, Cl A 3,000 121 Johnson Controls 27,809 843 Jones Apparel Group (A) 60,000 1,111 KB Home 2,500 49 Kohl's* (A) 5,456 251 Las Vegas Sands* 800 29 Leggett & Platt 17,700 386 Liberty Global, Cl A* 36,704 1,112 Liberty Media - Entertainment, Cl A* 34,900 871 LKQ* 2,700 46 Lowe's 2,200 52 Macy's 3,500 63 Marriott International, Cl A 1,700 44 Mattel 2,400 43 McDonald's (A) 91,942 5,673 McGraw-Hill 8,098 256 MDC Holdings 900 33 MGM Mirage* 117,200 3,340 NetFlix* (A) 43,200 1,334 New York Times, Cl A 3,200 46 Newell Rubbermaid 3,002 52 News, Cl A 333,431 3,998 58 SEI Asset Allocation Trust / Semi-Annual Report / September 30, 2008 Market Value Description Shares ($ Thousands) - -------------------------------------------- --------------- --------------- Nike, Cl B 11,324 $ 758 NVR* (A) 3,745 2,142 Office Depot* 25,047 146 Omnicom Group 3,448 133 Orient-Express Hotels, Cl A 1,900 46 Panera Bread, Cl A* 800 41 Penn National Gaming* 1,500 40 Polo Ralph Lauren (A) 35,721 2,380 priceline.com* 900 62 Pulte Homes 14,000 196 RadioShack 49,600 857 Ross Stores 8,300 306 Royal Caribbean Cruises 1,700 35 Scripps Networks Interactive, Cl A 10,200 370 Sears Holdings* 31,400 2,936 Service International 77,901 651 Shaw Communications, Cl B (A) 87,200 1,773 Sherwin-Williams 20,680 1,182 Sirius XM Radio* 86,840 49 Snap-On (A) 40,686 2,143 Stamps.com* 17,100 200 Stanley Works 8,100 338 Staples 184,900 4,160 Starwood Hotels & Resorts Worldwide 2,700 76 Strayer Education 200 40 Target 5,445 267 Tiffany 4,300 153 Tim Hortons 3,887 115 Time Warner (A) 614,694 8,059 Time Warner Cable, Cl A* 10,845 262 Titan International 14,800 316 TJX 77,100 2,353 Toll Brothers* 13,100 331 TravelCenters of America LLC* 1 -- TRW Automotive Holdings* (A) 98,554 1,568 Urban Outfitters* (A) 46,700 1,488 VF 6,118 473 Viacom, Cl B* (A) 38,600 959 Virgin Media 82,800 654 WABCO Holdings 26,700 949 Walt Disney (A) 110,809 3,401 Warnaco Group* 26,100 1,182 Warner Music Group 22,243 169 Weight Watchers International 78,700 2,880 Williams-Sonoma 1,900 31 Wyndham Worldwide (A) 114,341 1,796 Wynn Resorts 2,000 163 Yum! Brands 28,210 920 --------------- 132,013 --------------- CONSUMER STAPLES -- 7.6% Alberto-Culver 6,521 178 Altria Group (A) 96,474 1,914 Market Value Description Shares ($ Thousands) - -------------------------------------------- --------------- --------------- Anheuser-Busch 16,021 $ 1,039 Archer-Daniels-Midland (A) 106,455 2,332 Avon Products 9,000 374 Bare Escentuals* 50,694 551 BJ's Wholesale Club* (A) 51,336 1,995 Brown-Forman, Cl B (A) 37,569 2,698 Bunge (A) 17,927 1,133 Central European Distribution* 700 32 Church & Dwight 3,000 186 Coca-Cola (A) 94,005 4,971 Coca-Cola Enterprises (A) 84,700 1,420 Colgate-Palmolive 26,012 1,960 ConAgra Foods 58,700 1,142 Constellation Brands, Cl A* 7,200 155 Corn Products International 4,346 140 Costco Wholesale (A) 32,575 2,115 CVS Caremark 22,388 754 Dean Foods* 10,305 241 Del Monte Foods 69,300 541 Dr Pepper Snapple Group* 16,400 434 Energizer Holdings* 2,000 161 Estee Lauder, Cl A 800 40 General Mills (A) 20,600 1,416 Hansen Natural* 1,400 42 Herbalife (A) 43,200 1,707 HJ Heinz 7,374 368 Hormel Foods 7,200 261 JM Smucker 1,200 61 Kellogg 11,875 666 Kimberly-Clark (A) 35,435 2,298 Kraft Foods, Cl A 9,939 326 Kroger (A) 149,421 4,106 Lorillard 6,350 452 McCormick 1,053 40 Molson Coors Brewing, Cl B (A) 24,292 1,136 Pepsi Bottling Group 8,600 251 PepsiAmericas (A) 46,400 961 PepsiCo (A) 85,747 6,111 Philip Morris International (A) 84,373 4,058 Procter & Gamble (A) 295,205 20,573 Reynolds American (A) 26,190 1,273 Safeway (A) 86,406 2,050 Smithfield Foods* 4,300 68 SUPERVALU 64,053 1,390 SYSCO (A) 212,791 6,560 Tyson Foods, Cl A (A) 173,897 2,076 UST 2,100 140 Walgreen 126,148 3,906 Wal-Mart Stores (A) 89,124 5,338 Whole Foods Market 12,400 248 WM Wrigley Jr. 9,376 744 --------------- 95,132 --------------- SEI Asset Allocation Trust / Semi-Annual Report / September 30, 2008 59 SCHEDULE OF INVESTMENTS Large Cap Diversified Alpha Fund (Continued) September 30, 2008 Market Value Description Shares ($ Thousands) - -------------------------------------------- --------------- --------------- ENERGY -- 10.7% Anadarko Petroleum 23,600 $ 1,145 Apache (A) 18,722 1,952 Arch Coal 9,113 300 Atwood Oceanics* 1,100 40 Baker Hughes 12,750 772 Cabot Oil & Gas 6,200 224 Cameron International* (A) 29,576 1,140 Chesapeake Energy 35,600 1,277 Chevron (A) 221,900 18,302 Cimarex Energy (A) 55,500 2,715 ConocoPhillips (A) 145,116 10,630 Consol Energy 6,700 307 Continental Resources* 3,100 122 Denbury Resources* 10,400 198 Devon Energy (A) 12,500 1,140 Diamond Offshore Drilling 1,700 175 Dresser-Rand Group* 1,400 44 El Paso 49,772 635 Encore Acquisition* 1,300 54 ENSCO International (A) 20,500 1,181 EOG Resources 39,900 3,569 Exterran Holdings* 1,300 42 Exxon Mobil (A) 449,744 34,927 FMC Technologies* 5,000 233 Forest Oil* 5,200 258 Foundation Coal Holdings 10,779 384 Frontier Oil 2,400 44 Frontline 3,700 178 Halliburton (A) 131,272 4,252 Helix Energy Solutions Group* 1,400 34 Helmerich & Payne (A) 31,600 1,365 Hercules Offshore* 1,600 24 Hess (A) 18,845 1,547 Key Energy Services* 22,738 264 Marathon Oil (A) 47,610 1,898 Mariner Energy* (A) 75,400 1,546 Massey Energy 31,600 1,127 Murphy Oil (A) 50,233 3,222 Nabors Industries* 32,400 807 National Oilwell Varco* 13,533 680 Newfield Exploration* 4,100 131 Noble (A) 25,400 1,115 Noble Energy 9,100 506 Occidental Petroleum (A) 81,708 5,756 Oceaneering International* 200 11 Oil States International* 1,200 42 Overseas Shipholding Group 30,300 1,767 Patriot Coal* 6,300 183 Patterson-UTI Energy (A) 87,600 1,754 Peabody Energy 1,700 77 Petro-Canada (A) 40,000 1,334 PetroHawk Energy* 5,400 117 Market Value Description Shares ($ Thousands) - -------------------------------------------- --------------- --------------- Pioneer Natural Resources (A) 39,936 $ 2,088 Plains Exploration & Production* 16,897 594 Pride International* (A) 30,700 909 Quicksilver Resources* 27,037 531 Range Resources 7,300 313 Rowan 400 12 Schlumberger (A) 60,252 4,705 SEACOR Holdings* (A) 13,200 1,042 Smith International 5,600 328 Southwestern Energy* (A) 46,145 1,409 Superior Energy Services* 49,900 1,554 Swift Energy* 5,500 213 Tesoro 1,600 26 Tidewater (A) 20,100 1,113 Transocean 6,619 727 Unit* 18,400 917 Valero Energy (A) 58,000 1,757 W&T Offshore (A) 35,700 974 Weatherford International* 15,500 390 Whiting Petroleum* 5,665 404 Williams (A) 50,900 1,204 XTO Energy 27,591 1,284 --------------- 134,041 --------------- FINANCIALS -- 14.4% Aflac 17,816 1,047 Alexandria Real Estate Equities+ 1,800 203 Alleghany* 139 51 Allied World Assurance Holdings 21,700 771 Allstate (A) 66,560 3,070 AMB Property+ 6,200 281 American Capital 1,600 41 American Express 74,139 2,627 American Financial Group (A) 83,014 2,449 American International Group 47,022 157 American National Insurance 342 30 American Physicians Capital 6,600 279 Ameriprise Financial (A) 50,288 1,921 Annaly Capital Management+ (A) 100,700 1,354 AON 11,786 530 Apartment Investment & Management, Cl A+ 6,624 232 Arch Capital Group* 10,300 752 Aspen Insurance Holdings 11,800 325 Associated Banc-Corp 28,724 573 Assurant (A) 36,174 1,990 Astoria Financial 10,600 220 AvalonBay Communities+ 10,851 1,068 Axis Capital Holdings (A) 49,800 1,579 Bancorpsouth 7,800 219 Bank of America (A) 225,401 7,889 Bank of Hawaii 5,115 273 Bank of New York Mellon (A) 99,384 3,238 60 SEI Asset Allocation Trust / Semi-Annual Report / September 30, 2008 Market Value Description Shares ($ Thousands) - -------------------------------------------- --------------- --------------- BB&T 33,611 $ 1,270 BlackRock (A) 7,012 1,364 BOK Financial 9,459 458 Boston Properties+ (A) 40,995 3,840 Brandywine Realty Trust+ (A) 82,100 1,316 Brown & Brown 3,963 86 Camden Property Trust+ 1,500 69 Capital One Financial (A) 73,500 3,748 Capitol Federal Financial 6,458 286 CapLease+ 5,700 45 CB Richard Ellis Group, Cl A* 3,800 51 CBL & Associates Properties+ (A) 53,800 1,080 Charles Schwab (A) 272,158 7,076 Chubb (A) 78,304 4,299 Cincinnati Financial 4,200 119 Citigroup 371,601 7,622 CME Group 17,299 6,427 Colonial Properties Trust+ 1,000 19 Commerce Bancshares 5,200 241 Credicorp (A) 21,700 1,351 Cullen/Frost Bankers 7,500 450 Digital Realty Trust+ 1,400 66 Discover Financial Services 55,769 771 Douglas Emmett+ 4,900 113 Eaton Vance 3,700 130 Endurance Specialty Holdings (A) 86,200 2,665 Equity Residential+ 5,800 258 Erie Indemnity, Cl A 1,000 42 Essex Property Trust+ 2,200 260 Everest Re Group 3,900 337 Fannie Mae 2,247 3 Federal Realty Investment Trust+ 606 52 Federated Investors, Cl B 32,100 926 Fidelity National Financial, Cl A 8,200 121 Fifth Third Bancorp 6,000 71 First Cash Financial Services* 2,600 39 First Citizens BancShares, Cl A 2,208 395 Forest City Enterprises, Cl A 12,218 375 Franklin Resources (A) 25,281 2,228 Fulton Financial 18,300 200 General Growth Properties+ 15,300 231 Goldman Sachs Group 34,324 4,393 Greenhill 12,400 915 Hanover Insurance Group (A) 26,500 1,206 Hartford Financial Services Group 14,503 594 HCC Insurance Holdings 2,100 57 HCP+ 12,800 514 Health Care+ 10,000 532 Hospitality Properties Trust+ 20,187 414 Host Hotels & Resorts+ 62,974 837 Hudson City Bancorp (A) 184,000 3,395 Huntington Bancshares 35,700 285 Interactive Brokers Group, Cl A* 4,900 109 Market Value Description Shares ($ Thousands) - -------------------------------------------- --------------- --------------- IntercontinentalExchange* 68,300 $ 5,510 Invesco 4,000 84 Investment Technology Group* 23,200 706 Janus Capital Group (A) 133,029 3,230 Jefferies Group 900 20 Jones Lang LaSalle 15,920 692 JPMorgan Chase (A) 251,117 11,727 Kimco Realty+ 2,800 103 Lazard, Cl A 1,000 43 Leucadia National 21,000 954 Liberty Property Trust+ 1,300 49 Loews (A) 90,849 3,588 M&T Bank 2,200 196 Mack-Cali Realty+ 3,100 105 Markel* 94 33 Marsh & McLennan (A) 81,377 2,585 Merrill Lynch 159,835 4,044 MetLife (A) 22,242 1,246 Montpelier Re Holdings 14,900 246 Moody's 3,300 112 Morgan Stanley 26,862 618 NASDAQ Stock Market* 39,462 1,206 Nationwide Health Properties+ 9,600 345 New York Community Bancorp 27,400 460 Northern Trust 32,649 2,357 NorthStar Realty Finance+ 56,600 439 NYSE Euronext 104,929 4,111 PartnerRe (A) 17,300 1,178 People's United Financial 13,100 252 Philadelphia Consolidated Holding* 2,000 117 Platinum Underwriters Holdings 10,800 383 Plum Creek Timber+ 5,297 264 PNC Financial Services Group 4,046 302 Popular 21,100 175 Principal Financial Group 7,389 321 Progressive 6,100 106 Prologis+ 3,600 149 Protective Life 1,500 43 Prudential Financial 3,400 245 Public Storage+ 18,127 1,795 Raymond James Financial 32,061 1,057 Rayonier+ (A) 87,645 4,150 Regency Centers+ 800 53 Regions Financial (A) 286,955 2,755 RenaissanceRe Holdings 41,100 2,137 SeaBright Insurance Holdings* 2,800 36 Simon Property Group+ 2,600 252 St. Joe 5,500 215 StanCorp Financial Group 2,900 151 State Street 4,000 228 Sunstone Hotel Investors+ 28,800 389 SunTrust Banks 821 37 Synovus Financial 20,700 214 SEI Asset Allocation Trust / Semi-Annual Report / September 30, 2008 61 SCHEDULE OF INVESTMENTS Large Cap Diversified Alpha Fund (Continued) September 30, 2008 Market Value Description Shares ($ Thousands) - -------------------------------------------- --------------- --------------- T. Rowe Price Group (A) 61,733 $ 3,316 Taubman Centers+ 3,000 150 TCF Financial 5,200 94 TD Ameritrade Holding* (A) 180,400 2,922 TFS Financial 4,661 58 Torchmark 3,171 190 Transatlantic Holdings (A) 1,127 61 Travelers (A) 91,076 4,117 Tree.com* 1,013 5 UDR+ 11,800 309 UnionBanCal 1,000 73 Unum Group 6,000 151 US Bancorp 16,002 576 Valley National Bancorp 955 20 Ventas+ 14,700 726 Wachovia (A) 100,481 352 Waddell & Reed Financial, Cl A 13,800 342 Washington Federal 41,000 756 Webster Financial 8,200 207 Weingarten Realty Investors+ 1,400 50 Wells Fargo (A) 100,679 3,778 Whitney Holding 400 10 Wilmington Trust 4,700 136 WR Berkley (A) 58,000 1,366 XL Capital, Cl A 19,900 357 Zions Bancorporation (A) 13,100 507 --------------- 179,362 --------------- HEALTH CARE -- 12.2% Abbott Laboratories 25,275 1,455 Aetna (A) 167,056 6,032 Alkermes* 28,200 375 Allergan 92,394 4,758 AmerisourceBergen (A) 151,405 5,700 Amgen* (A) 134,948 7,998 Applied Biosystems (A) 127,045 4,351 Barr Pharmaceuticals* 600 39 Baxter International 22,089 1,450 Becton Dickinson (A) 27,348 2,195 Biogen Idec* (A) 34,900 1,755 BioMarin Pharmaceuticals* 4,700 125 Boston Scientific* 13,700 168 Bristol-Myers Squibb (A) 136,341 2,843 C.R. Bard 3,200 304 Cardinal Health (A) 130,662 6,439 Celgene* 4,906 310 Cephalon* (A) 16,800 1,302 Cerner* 20,556 918 Charles River Laboratories International* 4,400 244 Cigna (A) 108,225 3,677 Community Health Systems* 1,400 41 Covance* 10,000 884 Market Value Description Shares ($ Thousands) - -------------------------------------------- --------------- --------------- Covidien 4,700 $ 253 Cubist Pharmaceuticals* (A) 39,400 876 Dentsply International 14,568 547 Dionex* 3,300 210 Edwards Lifesciences* 9,644 557 Eli Lilly (A) 50,089 2,205 Endo Pharmaceuticals Holdings* 34,900 698 Express Scripts* (A) 56,100 4,141 Forest Laboratories* (A) 73,300 2,073 Genentech* 79,500 7,050 Gen-Probe* 500 27 Genzyme* 20,877 1,689 Gilead Sciences* 10,700 488 Health Management Associates, Cl A* 102,625 427 Henry Schein* 5,200 280 Hill-Rom Holdings 4,630 140 HLTH* 76,296 872 Hologic* 1,800 35 Hospira* 1,200 46 Humana* (A) 58,400 2,406 Idexx Laboratories* (A) 30,200 1,655 Illumina* 3,800 154 ImClone Systems* 4,500 281 Intuitive Surgical* (A) 6,100 1,470 Inverness Medical Innovations* 12,600 378 Invitrogen* 12,392 468 Isis Pharmaceuticals* 7,600 128 Johnson & Johnson (A) 161,562 11,193 Kinetic Concepts* 1,000 29 King Pharmaceuticals* (A) 209,800 2,010 Laboratory Corp of America Holdings* 745 52 LifePoint Hospitals* 10,400 334 Lincare Holdings* 45,900 1,381 Martek Biosciences 17,500 550 McKesson (A) 105,458 5,675 Medco Health Solutions* (A) 89,995 4,050 Medicis Pharmaceutical, Cl A 16,700 249 Medtronic (A) 56,292 2,820 Merck (A) 103,936 3,280 Merit Medical Systems* 8,400 158 Mylan Laboratories* 3,600 41 Omnicare 26,900 774 OSI Pharmaceuticals* 10,000 493 Owens & Minor 17,300 839 Patterson* 2,200 67 Pediatrix Medical Group* 4,500 243 PerkinElmer 15,173 379 Perrigo 6,800 262 Pfizer (A) 518,017 9,552 Pharmaceutical Product Development 6,800 281 Quest Diagnostics 6,500 336 Resmed* 1,100 47 Schering-Plough 3,096 57 Sepracor* 20,246 371 62 SEI Asset Allocation Trust / Semi-Annual Report / September 30, 2008 Market Value Description Shares ($ Thousands) - -------------------------------------------- --------------- --------------- Somanetics* 2,900 $ 63 St. Jude Medical* 2,300 100 STERIS 38,100 1,432 Stryker (A) 76,815 4,786 Techne* 15,221 1,098 Tenet Healthcare* 316,319 1,756 Thermo Fisher Scientific* 15,112 831 UnitedHealth Group (A) 356,265 9,046 Universal Health Services, Cl B 14,655 821 Varian Medical Systems* 5,800 331 VCA Antech* 1,900 56 Vertex Pharmaceuticals* 1,500 50 Warner Chilcott, Cl A* (A) 66,200 1,001 Waters* 7,063 411 Watson Pharmaceuticals* 1,400 40 WellCare Health Plans* 2,500 90 WellPoint* (A) 31,945 1,494 Wyeth 22,056 815 Zimmer Holdings* 2,000 129 --------------- 152,790 --------------- INDUSTRIALS -- 10.6% 3M (A) 26,245 1,793 AAON 7,700 140 Acuity Brands 6,300 263 Aecom Technology* 27,799 679 AGCO* 14,900 635 Alliant Techsystems* 1,900 178 Allied Waste Industries* 69,914 777 Ametek 8,200 334 BE Aerospace* 1,400 22 Boeing (A) 103,677 5,946 Brink's 4,500 275 Bucyrus International, Cl A (A) 20,300 907 Burlington Northern Santa Fe 8,800 813 C.H. Robinson Worldwide (A) 40,487 2,063 Caterpillar (A) 54,700 3,260 Cenveo* 12,700 98 Columbus McKinnon* 2,200 52 Continental Airlines, Cl B* 4,900 82 Con-way 3,200 141 Copart* 16,400 623 Corporate Executive Board 1,500 47 Corrections Corp of America* 3,000 75 Covanta Holding* 1,800 43 Crane 18,700 556 CSX (A) 85,413 4,661 Cummins (A) 97,891 4,280 Danaher 2,345 163 Deere 11,600 574 Delta Air Lines* 2,500 19 Donaldson 5,900 247 Dover (A) 53,900 2,186 Market Value Description Shares ($ Thousands) - -------------------------------------------- --------------- --------------- DRS Technologies 3,200 $ 246 Dun & Bradstreet 10,974 1,036 Eaton 100 6 Emerson Electric (A) 42,718 1,742 Equifax 2,600 90 Expeditors International of Washington 94,000 3,275 Fastenal 22,700 1,121 FedEx (A) 62,302 4,924 First Solar* (A) 7,400 1,398 Flowserve 5,100 453 Fluor (A) 40,801 2,273 Foster Wheeler* 32,600 1,177 FTI Consulting* 900 65 Gardner Denver* (A) 33,700 1,170 GATX 2,600 103 General Cable* 36,400 1,297 General Dynamics 18,985 1,398 General Electric (A) 573,188 14,616 Goodrich (A) 49,100 2,043 Harsco (A) 23,642 879 Hertz Global Holdings* 3,200 24 Honeywell International 34,674 1,441 Hubbell, Cl B 7,700 270 IHS, Cl A* 1,000 48 Illinois Tool Works 3,200 142 Ingersoll-Rand, Cl A 7,953 248 ITT 518 29 Jacobs Engineering Group* (A) 57,702 3,134 JB Hunt Transport Services 5,400 180 John Bean Technologies* 6,403 81 Joy Global 2,300 104 Kansas City Southern* 4,600 204 KBR (A) 101,792 1,554 Kennametal 4,659 126 Kirby* 5,800 220 L-3 Communications Holdings (A) 22,900 2,252 Landstar System 3,300 145 Lennox International (A) 44,600 1,484 Lincoln Electric Holdings 1,400 90 Lockheed Martin (A) 66,884 7,335 Manitowoc (A) 16,268 253 Manpower 1,600 69 McDermott International* 3,600 92 NCI Building Systems* 1,100 35 Norfolk Southern (A) 24,700 1,635 Northrop Grumman (A) 60,283 3,650 Northwest Airlines* 6,000 54 Owens Corning* 1,200 29 PACCAR 1,488 57 Pacer International 1,800 30 Pall 1,200 41 Parker Hannifin (A) 58,385 3,094 Pentair 1,900 66 SEI Asset Allocation Trust / Semi-Annual Report / September 30, 2008 63 SCHEDULE OF INVESTMENTS Large Cap Diversified Alpha Fund (Continued) September 30, 2008 Market Value Description Shares ($ Thousands) - -------------------------------------------- --------------- --------------- Precision Castparts 17,164 $ 1,352 Quanta Services* 110,479 2,984 Raytheon (A) 63,905 3,420 Republic Services 11,500 345 Robert Half International (A) 37,000 916 Rockwell Automation 700 26 Roper Industries 1,838 105 Ryder System 10,000 620 Shaw Group* 33,100 1,017 Southwest Airlines 99,325 1,441 SPX 5,194 400 Steelcase, Cl A 76,711 825 Stericycle* (A) 31,270 1,842 Terex* 1,400 43 Textron 12,100 354 Thomas & Betts* 37,900 1,481 Timken 64,925 1,841 Trinity Industries 10,620 273 Tyco International (A) 50,379 1,764 Union Pacific (A) 47,378 3,371 United Parcel Service, Cl B 67,759 4,261 United Rentals* 15,000 229 United Technologies 14,804 889 URS* 9,018 331 USG* 1,700 44 UTI Worldwide 31,192 531 Valmont Industries 1,600 132 Walter Industries 22,900 1,087 Waste Management 8,113 255 WESCO International* (A) 26,600 856 WW Grainger 600 52 --------------- 132,547 --------------- INFORMATION TECHNOLOGY -- 19.1% Accenture, Cl A (A) 126,100 4,792 Activision Blizzard* 52,600 812 ADC Telecommunications* 900 8 Adobe Systems* (A) 102,200 4,034 Advanced Micro Devices* 5,600 29 Affiliated Computer Services, Cl A* 6,300 319 Agilent Technologies* 23,366 693 Akamai Technologies* 4,200 73 Altera 900 19 Amdocs* 39,812 1,090 Amkor Technology* 60,700 387 Amphenol, Cl A 11,940 479 Analog Devices (A) 43,800 1,154 Anixter International* (A) 24,400 1,452 Ansys* 1,500 57 Apple* (A) 50,848 5,779 Applied Materials 5,995 91 Applied Micro Circuits* 46,000 275 Market Value Description Shares ($ Thousands) - -------------------------------------------- --------------- --------------- Arrow Electronics* 3,200 $ 84 Autodesk* 700 23 Automatic Data Processing (A) 6,301 269 Avnet* (A) 89,800 2,212 Avocent* 5,500 113 AVX 60,402 615 BMC Software* 8,600 246 Broadcom, Cl A* (A) 62,100 1,157 Broadridge Financial Solutions 13,200 203 Brocade Communications Systems* 77,400 450 CA (A) 152,778 3,049 Cabot Microelectronics* 3,100 99 Check Point Software Technologies* (A) 74,900 1,703 Ciena* 50,800 512 Cisco Systems* (A) 437,430 9,868 Citrix Systems* 300 8 Cognex 10,000 202 CommScope* 2,600 90 Computer Sciences* 45,451 1,827 Compuware* (A) 158,600 1,537 Convergys* (A) 91,564 1,353 Corning (A) 226,542 3,543 Cree* 5,100 116 Daktronics 22,800 380 Dell* 52,700 868 Dolby Laboratories, Cl A* 3,400 120 DST Systems* 221 12 Earthlink* 50,200 427 eBay* (A) 475,410 10,640 Electronic Arts* 67,300 2,489 EMC* 144,335 1,726 Factset Research Systems 7,300 381 Fairchild Semiconductor International* (A) 28,603 254 Fidelity National Information Services 1,946 36 Fiserv* 3,200 151 Flir Systems* 2,453 94 Global Payments (A) 30,653 1,375 Google, Cl A* (A) 36,120 14,467 Harris 25,901 1,197 Hewitt Associates, Cl A* (A) 61,600 2,245 Hewlett-Packard (A) 390,103 18,038 IAC* 14,600 253 Ingram Micro, Cl A* 34,970 562 Integral Systems 6,800 141 Integrated Device Technology* 215,500 1,677 Intel (A) 231,588 4,338 International Business Machines (A) 60,962 7,130 Intersil, Cl A (A) 40,700 675 Intuit* 167,100 5,282 Iron Mountain* 12,400 303 Itron* 600 53 Jabil Circuit (A) 108,458 1,035 64 SEI Asset Allocation Trust / Semi-Annual Report / September 30, 2008 Market Value Description Shares ($ Thousands) - -------------------------------------------- --------------- --------------- Juniper Networks* (A) 49,000 $ 1,032 Kla-Tencor 500 16 Lender Processing Services 21,826 666 Lexmark International, Cl A* 1,400 46 Linear Technology 2,600 80 LSI Logic* 15,600 84 Mastercard, Cl A (A) 43,471 7,709 McAfee* 11,900 404 MEMC Electronic Materials* 4,074 115 Mettler Toledo International* 4,962 486 Micrel 36,000 327 Microchip Technology 1,500 44 Microsoft (A) 746,624 19,927 Molex 99,773 2,240 Motorola 160,430 1,145 Multi-Fineline Electronix* 7,000 104 National Semiconductor (A) 62,700 1,079 NCR* 31,800 701 NetApp* (A) 49,400 901 NeuStar, Cl A* 2,100 42 Nokia ADR 85,800 1,600 Nuance Communications* 3,400 41 Nvidia* 800 9 ON Semiconductor* 6,200 42 Oracle* (A) 134,708 2,736 QLogic* (A) 116,400 1,788 Qualcomm (A) 322,300 13,849 Rambus* 6,100 78 Red Hat* 83,900 1,264 Research In Motion* 49,000 3,347 SAIC* 1,400 28 Salesforce.com* 5,200 252 Seagate Technology 316,200 3,832 Silicon Laboratories* (A) 40,100 1,231 Sohu.com* 8,136 454 Sun Microsystems* (A) 94,332 717 Sybase* 47,900 1,467 Symantec* (A) 219,256 4,293 Synaptics* 10,400 314 Synopsys* (A) 83,878 1,673 Tech Data* (A) 49,119 1,466 Teradata* 137,300 2,677 Teradyne* (A) 119,700 935 Texas Instruments (A) 374,781 8,058 Trimble Navigation* 29,800 771 Tyco Electronics 67,621 1,870 Unisys* (A) 302,265 831 Valueclick* 44,400 454 VeriSign* 158,400 4,131 Visa, Cl A (A) 105,000 6,446 VMware, Cl A* 500 13 Volterra Semiconductor* 47,000 598 WebMD Health, Cl A* 130 4 Shares/ Contracts/Face Amount Market Value Description ($ Thousands) ($ Thousands) - -------------------------------------------- --------------- --------------- Western Digital* 28,700 $ 612 Western Union 51,611 1,273 Xerox (A) 101,840 1,174 Xilinx 2,700 63 Yahoo!* 236,500 4,091 Zebra Technologies, Cl A* 3,700 103 --------------- 238,904 --------------- MATERIALS -- 3.2% Air Products & Chemicals 8,800 603 Airgas 3,300 164 AK Steel Holding (A) 51,877 1,345 Alcoa (A) 65,600 1,481 Allegheny Technologies 400 12 Alpha Natural Resources* 3,600 185 Aptargroup 2,700 106 Ashland (A) 1,049 31 Cabot (A) 72,384 2,300 Celanese, Ser A (A) 29,831 833 Century Aluminum* 2,000 55 CF Industries Holdings 1,600 146 Cleveland-Cliffs 6,400 339 Commercial Metals 5,247 89 Crown Holdings* 10,100 224 Dow Chemical (A) 95,584 3,038 E.I. Du Pont de Nemours 49,734 2,004 Eastman Chemical 10,900 600 Ecolab 8,500 412 FMC 7,800 401 Freeport-McMoRan Copper & Gold, Cl B (A) 14,850 844 Greif, Cl A 18,300 1,201 Huntsman 3,200 40 Intrepid Potash* 27,800 838 Lubrizol (A) 36,400 1,570 Monsanto (A) 20,412 2,020 Mosaic (A) 25,400 1,728 Nalco Holding (A) 146,946 2,724 Newmont Mining (A) 39,953 1,549 Nucor (A) 46,900 1,853 Owens-Illinois* 18,200 535 Packaging Corp of America 1,800 42 PPG Industries 1,000 58 Praxair 47,615 3,416 Reliance Steel & Aluminum 42,600 1,618 Schnitzer Steel Industries, Cl A 14,742 578 Sealed Air 10,300 226 Sigma-Aldrich 9,800 514 Sonoco Products 3,700 110 Southern Copper 11,500 219 Steel Dynamics 8,500 145 Temple-Inland 21,810 333 Terra Industries (A) 29,139 857 SEI Asset Allocation Trust / Semi-Annual Report / September 30, 2008 65 SCHEDULE OF INVESTMENTS Large Cap Diversified Alpha Fund (Continued) September 30, 2008 Face Amount Market Value Description ($ Thousands) ($ Thousands) - -------------------------------------------- --------------- --------------- United States Steel (A) 30,200 $ 2,344 Vulcan Materials 600 45 Weyerhaeuser 1,000 61 --------------- 39,836 --------------- TELECOMMUNICATION SERVICES -- 2.7% American Tower, Cl A* (A) 28,500 1,025 AT&T (A) 534,566 14,925 CenturyTel (A) 23,700 869 Crown Castle International* 121,100 3,508 Frontier Communications 4,811 55 iPCS* 4,500 100 Leap Wireless International* (A) 22,900 872 MetroPCS Communications* 7,921 111 NII Holdings* 25,478 966 Qwest Communications International 28,000 90 Sprint Nextel (A) 152,700 931 Telephone & Data Systems 12,540 448 US Cellular* (A) 36,224 1,700 USA Mobility 8,100 89 Verizon Communications (A) 216,375 6,943 Windstream (A) 127,752 1,398 --------------- 34,030 --------------- UTILITIES -- 2.9% AES* 364,000 4,255 AGL Resources 12,700 399 Allegheny Energy 5,406 199 Alliant Energy 40,540 1,306 Ameren 10,800 422 American Electric Power 15,700 581 American Water Works 10,300 221 Atmos Energy 19,130 509 Calpine* 128,294 1,668 Centerpoint Energy (A) 58,100 847 Consolidated Edison 1,200 52 Constellation Energy Group 6,400 156 Dominion Resources 25,969 1,111 DPL 44,046 1,092 DTE Energy (A) 41,100 1,649 Duke Energy (A) 43,400 756 Edison International (A) 70,000 2,793 Energen 6,700 303 Entergy 5,700 507 Equitable Resources 16,300 598 Exelon 2,574 161 FirstEnergy (A) 21,965 1,471 FPL Group 17,200 865 Hawaiian Electric Industries 10,800 314 MDU Resources Group 35,937 1,042 National Fuel Gas 5,400 228 NiSource (A) 81,300 1,200 Face Amount Market Value Description ($ Thousands) ($ Thousands) - -------------------------------------------- --------------- --------------- NRG Energy* 16,900 $ 418 NSTAR 1,900 64 OGE Energy 1,500 46 Oneok 15,400 530 Pepco Holdings (A) 37,900 868 PG&E 15,179 568 Pinnacle West Capital 3,600 124 PPL 22,462 832 Public Service Enterprise Group (A) 74,502 2,443 Puget Energy 11,500 307 Questar 5,700 233 Reliant Energy* (A) 234,293 1,722 SCANA 4,000 156 Sempra Energy 1,992 101 Sierra Pacific Resources 129,899 1,244 Southern 9,727 367 Southern Union 1,243 26 TECO Energy 32,314 508 UGI 23,800 614 Vectren 4,200 117 Wisconsin Energy 5,600 251 Xcel Energy 11,071 221 --------------- 36,465 --------------- Total Common Stock (Cost $1,304,685) ($ Thousands) 1,175,120 --------------- MORTGAGE-BACKED SECURITIES -- 14.2% AGENCY MORTGAGE-BACKED OBLIGATIONS -- 8.2% FHLMC 6.000%, 03/01/23 $ 1,900 1,935 FHLMC CMO STRIPS, Ser 232, Cl IO, IO 5.000%, 08/01/35 (B)(E) 5,847 1,283 FHLMC CMO STRIPS, Ser 233, Cl 12, IO 5.000%, 09/15/35 (B)(E) 963 187 FNMA TBA 6.500%, 10/01/37 6,000 6,152 6.000%, 10/20/21 37,000 37,682 5.500%, 10/15/22 to 10/01/38 44,000 44,331 FNMA ARM 5.496%, 11/25/08 820 834 FNMA CMO, Ser 2005-115, Cl OC 6.000%, 10/25/33 2,194 2,231 FNMA CMO, Ser 2005-108, Cl TA 5.500%, 03/25/22 1,027 1,030 FNMA CMO, Ser 2006-33, Cl QA 6.000%, 01/25/29 3,386 3,444 FNMA CMO, STRIPS, Ser 359, Cl 6, IO 5.000%, 11/01/35 367 75 66 SEI Asset Allocation Trust / Semi-Annual Report / September 30, 2008 Face Amount Market Value Description ($ Thousands) ($ Thousands) - -------------------------------------------- --------------- --------------- FNMA CMO STRIPS, Ser 360, Cl 2, IO 5.000%, 08/01/35 $ 15,966 $ 3,502 GNMA ARM 5.625%, 11/20/08 337 340 --------------- 103,026 --------------- NON-AGENCY MORTGAGE-BACKED OBLIGATIONS -- 6.0% American Home Mortgage Assets, Ser 2006-3, Cl M5 3.827%, 10/27/08 (C) 250 11 American Home Mortgage Investment Trust, Ser 2005-1, Cl 6A 5.294%, 11/25/08 (C) 3,510 1,949 American Home Mortgage Investment Trust, Ser 2005-4, Cl 5A 5.350%, 11/25/08 (C) 1,913 1,274 American Home Mortgage Investment Trust, Ser 2006-1, Cl 2A3 5.100%, 11/25/08 (C) 1,141 855 Banc of America Commercial Mortgage, Ser 2005-5, Cl AM 5.176%, 11/10/08 (C) 1,762 1,490 Banc of America Commercial Mortgage, Ser 2005-6, Cl AM 5.352%, 11/10/08 (C) 1,619 1,367 Banc of America Commercial Mortgage, Ser 2006-2, Cl A4 5.930%, 05/10/45 (C) 1,911 1,729 Banc of America Commercial Mortgage, Ser 2006-3, Cl A4 5.889%, 11/10/08 (C) 1,854 1,678 Banc of America Commercial Mortgage, Ser 2007-3, Cl A4 5.838%, 11/10/08 (C) 5,050 4,292 Citigroup Commercial Mortgage Trust, Ser 2006-C4, Cl A3 5.915%, 11/15/08 (C) 3,249 2,939 Countrywide Alternative Loan Trust, Ser 2004-33, Cl 1A1 6.721%, 11/25/08 (C) 227 172 Countrywide Alternative Loan Trust, Ser 2005-69, Cl M3 4.357%, 10/27/08 (C) 235 16 Countrywide Alternative Loan Trust, Ser 2005-IM1, Cl M3 5.207%, 10/27/08 (C) 375 12 Countrywide Alternative Loan Trust, Ser 2006-OA11, Cl M3 3.637%, 10/27/08 (C) 500 60 Face Amount Market Value Description ($ Thousands) ($ Thousands) - -------------------------------------------- --------------- --------------- Countrywide Alternative Loan Trust, Ser 2006-OA16, Cl M5 3.757%, 10/27/08 (C) $ 225 $ 3 Countrywide Home Loans, Ser 2004-22, Cl A1 5.089%, 11/25/08 (C) 355 286 Countrywide Home Loans, Ser 2006-OA4, Cl M4 4.027%, 10/27/08 (C) 285 10 Countrywide Home Loans, Ser 2006-OA4, Cl M5 4.077%, 10/27/08 (C) 195 6 Countrywide Home Loans, Ser 2006-OA5, Cl 1M4 4.257%, 10/27/08 (C) 275 6 Countrywide Home Loans, Ser 2007-HYB1, Cl 1A1 5.491%, 11/25/08 (C) 1,503 1,120 Credit Suisse Mortgage Capital Certificates, Cl A3 5.311%, 12/15/39 5,600 4,854 Credit Suisse Mortgage Capital Certificates, Ser 2006-C3, Cl A3 6.021%, 11/15/08 (C) 2,381 2,164 Downey Savings & Loan Association Mortgage Loan Trust, Ser 2004-AR4, Cl B1 3.630%, 10/20/08 (C) 267 71 First Horizon Alternative Mortgage Trust, Ser 2006-AA6, Cl 2A1 5.628%, 11/25/08 (C) 2,905 1,999 First Horizon Mortgage Pass-Through, Ser 2006-AR3, Cl 1A1 5.656%, 11/25/08 (C) 616 525 Greenwich Capital Commercial Funding, Ser 2006-GG7, Cl AM 6.112%, 11/10/08 (C) 2,100 1,753 GS Mortgage Securities II, Ser 2006-GG6, Cl AM 5.622%, 11/10/08 (C) 3,800 3,127 Impac CMB Trust, Ser 2004-10, Cl 4M1 3.807%, 10/27/08 (C) 230 161 Impac Secured Assets CMO Owner Trust, Ser 2007-1, Cl A1 3.267%, 10/27/08 (C) 4,475 3,923 Impac Secured Assets CMO Owners Trust, Ser 2007-2, Cl 1A1A 3.317%, 10/27/08 (C) 2,782 2,379 Indymac Index Mortgage Loan Trust, Ser 2006-AR12, Cl M2 3.757%, 10/27/08 (C) 235 36 SEI Asset Allocation Trust / Semi-Annual Report / September 30, 2008 67 SCHEDULE OF INVESTMENTS Large Cap Diversified Alpha Fund (Continued) September 30, 2008 Face Amount Market Value Description ($ Thousands) ($ Thousands) - -------------------------------------------- --------------- --------------- Indymac Index Mortgage Loan Trust, Ser 2006-AR2, Cl M6 4.957%, 10/27/08 (C) $ 240 $ 6 Indymac Index Mortgage Loan Trust, Ser 2006-AR4, Cl M4 3.907%, 10/27/08 (C) 165 4 JPMorgan Chase Commercial Mortgage Securities, Ser 2006-LDP9, Cl A3 5.336%, 05/15/47 1,155 994 JPMorgan Chase Commercial Mortgage Securities, Ser 2007-CB18, Cl A4 5.716%, 02/15/51 7,000 5,849 JPMorgan Chase Commercial Mortgage Securities, Ser 2007-CB18, Cl A4 5.440%, 06/12/47 5,050 4,213 Merrill Lynch Mortgage Investors, Ser 2005-A4, Cl 1A 5.114%, 11/25/08 (C) 364 270 Merrill Lynch Mortgage Investors, Ser 2006-1, Cl 1A 5.248%, 11/25/08 (C) 1,267 1,171 Merrill Lynch Mortgage Trust, Ser 2005-CKI1, Cl A6 5.416%, 11/12/08 (C) 2,316 2,115 Merrill Lynch Mortgage Trust, Ser 2008-C1, Cl AM 6.461%, 11/12/08 (C) 756 606 Merrill Lynch/Countrywide Commercial Mortgage, Ser 2006-4, Cl A3 5.172%, 11/12/08 (C) 5,667 4,865 Morgan Stanley Mortgage Loan Trust, Ser 2007-14AR, Cl 6A1 6.471%, 11/25/08 (C) 1,692 1,112 Nomura Asset Acceptance, Ser 2007-1, Cl 1A1A 5.995%, 03/25/47 1,684 1,417 Residential Accredit Loans, Ser 2006-QO1, Cl 2A3 3.607%, 10/27/08 (C) 303 118 Residential Accredit Loans, Ser 2006-QO3, Cl M5 3.987%, 10/27/08 (C) 251 5 Residential Accredit Loans, Ser 2006-QO3, Cl M4 3.927%, 10/27/08 (C) 251 8 Residential Accredit Loans, Ser 2006-QO6, Cl M5 3.707%, 10/27/08 (C) 350 11 Face Amount Market Value Description ($ Thousands) ($ Thousands) - -------------------------------------------- --------------- --------------- Residential Asset Securitization Trust, Ser 2004-IP2, Cl 3A1 5.249%, 11/25/08 (C) $ 1,096 $ 1,064 Structured Adjustable Rate Mortgage Loan Trust, Ser 2005-16XS, Cl M2 4.107%, 10/27/08 (C) 505 25 Structured Adjustable Rate Mortgage Loan Trust, Ser 2007-9, Cl 2A1 5.994%, 11/25/08 (C) 1,799 1,176 Structured Asset Mortgage Investments, Ser 2006-AR1, Cl B4 4.157%, 10/27/08 (C) 191 9 Structured Asset Mortgage Investments, Ser 2006-AR1, Cl B5 4.257%, 10/27/08 (C) 121 11 Structured Asset Securities, Ser 2006-NC1, Cl A4 3.357%, 10/27/08 (C) 300 180 Wachovia Bank Commercial Mortgage Trust, Cl A3 6.011%, 11/15/08 (C) 5,000 4,524 Washington Mutual Mortgage Pass-Through Certificates, Ser 2007-HY4, Cl 1A1 5.542%, 11/25/08 (C) 4,013 2,981 Washington Mutual Mortgage Pass-Through Certificates, Ser 2007-HY6, Cl 1A1 5.664%, 11/25/08 (C) 3,287 2,213 --------------- 75,214 --------------- Total Mortgage-Backed Securities (Cost $198,608) ($ Thousands) 178,240 --------------- ASSET-BACKED SECURITIES -- 3.0% MORTGAGE RELATED SECURITIES -- 1.3% ABSC NIM Trust, Ser 2005-HE6, Cl A1 5.050%, 08/27/35 (D) 29 -- Ace Securities, Ser 2003-OP1, Cl M1 3.907%, 10/27/08 (C) 500 370 Ace Securities, Ser 2005-HE7, Cl A2D 3.537%, 10/27/08 (C) 800 676 Aegis Asset-Backed Securities Trust, Ser 2003-3, Cl M1 4.257%, 10/27/08 (C) 38 29 Ameriquest Mortgage Securities, Ser 2003-2, Cl M1 4.557%, 10/27/08 (C) 384 266 68 SEI Asset Allocation Trust / Semi-Annual Report / September 30, 2008 Face Amount Market Value Description ($ Thousands) ($ Thousands) - -------------------------------------------- --------------- --------------- Argent Securities, Ser 2003-W5, Cl M1 3.907%, 10/27/08 (C) $ 250 $ 196 Argent Securities, Ser 2003-W9, Cl M1 3.897%, 10/27/08 (C) 343 250 Asset-Backed Funding Certificates, Ser 2005-AQ1, Cl A2 4.300%, 06/25/35 (B) 231 228 Asset-Backed Securities Home Equity Loan Trust, Ser 2003-HE5, Cl M1 3.613%, 10/15/08 (C) 547 432 Bear Stearns Asset-Backed Securities Trust, Ser 2006-HE7, Cl 2A2 3.367%, 10/27/08 (C) 1,300 914 Bear Stearns Asset-Backed Securities Trust, Ser 2007-HE4, Cl 1A1 3.327%, 10/27/08 (C) 1,916 1,836 Countrywide Asset-Backed Certificates, Ser 2006-S1, Cl A2 5.549%, 08/25/21 1,101 1,000 Home Equity Asset Trust, Ser 2003-4, Cl M2 5.607%, 10/27/08 (C) 252 169 Home Equity Asset Trust, Ser 2006-5, Cl 2A3 3.357%, 10/27/08 (C) 250 170 Home Equity Mortgage Trust, Ser 2006-5, Cl A1 5.500%, 01/25/37 2,021 483 Irwin Home Equity, Ser 2007-1, Cl 2A1 3.357%, 10/27/08 (C) (D) 3,507 2,455 Morgan Stanley ABS Capital I, Ser 2003-NC10, Cl M1 4.227%, 10/27/08 (C) 583 466 New Century Home Equity Loan Trust, Ser 2005-A, Cl A2 4.461%, 08/25/35 (B) 58 57 Novastar Home Equity Loan, Ser 2007-1, Cl A2A1 3.307%, 10/27/08 (C) 2,397 2,250 Option One Mortgage Loan Trust, Ser 2003-5, Cl M1 3.857%, 10/27/08 (C) 111 77 Option One Mortgage Loan Trust, Ser 2007-HL1, Cl 2A1 3.327%, 10/27/08 (C) 2,002 1,749 Residential Asset Securities, Ser 2005-KS12, Cl A3 3.527%, 10/27/08 (C) 800 568 Terwin Mortgage Trust, Ser 2006-2HGS, Cl A1 4.500%, 11/25/08 (C) (D) 1,430 390 Face Amount Market Value Description ($ Thousands) ($ Thousands) - -------------------------------------------- --------------- --------------- Terwin Mortgage Trust, Ser 2006-4SL, Cl A1 4.500%, 11/25/08 (C) (D) $ 1,483 $ 552 Terwin Mortgage Trust, Ser 2006-6, Cl 1A1 4.500%, 11/25/08 (C) 734 235 Wells Fargo Home Equity Trust, Ser 2004-2, Cl M8A 6.207%, 10/27/08 (C) (D) 189 31 ------- 15,849 ------- OTHER ASSET-BACKED SECURITIES -- 1.7% Chase Funding Mortgage Loan Asset-Backed Certificates, Ser 2003-6, Cl 1A3 3.340%, 05/25/26 37 37 Countrywide Asset-Backed Certificates, Ser 2003-5, Cl MV2 4.807%, 10/27/08 (C) 251 180 Countrywide Asset-Backed Certificates, Ser 2005-7, Cl MV8 4.657%, 10/27/08 (C) 250 88 Credit-Based Asset Servicing and Securitization, Ser 2005-CB2, Cl M1 3.647%, 10/27/08 (C) 96 81 Credit-Based Asset Servicing and Securitization, Ser 2007-CB4, Cl A2A 5.844%, 04/25/37 (B) 1,810 1,724 Credit-Based Asset Servicing and Securitization, Ser 2007-CB4, Cl A1A 3.297%, 10/27/08 (C) 1,715 1,515 FBR Securitization Trust, Ser 2005-2, Cl M10 5.457%, 10/27/08 (C) 71 1 First Franklin Mortgage Loan Asset-Backed Certificates, Ser 2006-FF11, Cl M1 3.457%, 10/27/08 (C) 3,500 893 First Franklin Mortgage Loan Asset-Backed Certificates, Ser 2006-FF14, Cl A2 3.267%, 10/27/08 (C) 1,791 1,675 GSAMP Trust, Ser 2007-HE2, Cl A2A 2.592%, 10/27/08 (C) 1,761 1,651 Lehman XS Trust, Ser 2005-5N, Cl M4 4.957%, 10/27/08 (C) 725 13 Lehman XS Trust, Ser 2005-7N, Cl M51 4.457%, 10/27/08 (C) 150 7 SEI Asset Allocation Trust / Semi-Annual Report / September 30, 2008 69 SCHEDULE OF INVESTMENTS Large Cap Diversified Alpha Fund (Continued) September 30, 2008 Face Amount Market Value Description ($ Thousands) ($ Thousands) - -------------------------------------------- --------------- --------------- Lehman XS Trust, Ser 2005-7N, Cl M7I 4.957%, 10/27/08 (C) $ 325 $ 6 Lehman XS Trust, Ser 2005-9N, Cl M6 4.957%, 10/27/08 (C) 415 9 Lehman XS Trust, Ser 2006-12N, Cl M4 3.757%, 10/27/08 (C) 270 33 Lehman XS Trust, Ser 2006-12N, Cl M5 3.807%, 10/27/08 (C) 150 3 Lehman XS Trust, Ser 2006-2N, Cl M5 4.357%, 10/27/08 (C) 240 5 Long Beach Mortgage Loan Trust, Ser 2005-WL2, Cl M1 3.677%, 10/27/08 (C) 700 524 Long Beach Mortgage Loan Trust, Ser 2006-WL1, Cl 1A3 3.537%, 10/27/08 (C) 560 425 Merrill Lynch Mortgage Investors, Ser 2007-HE2, Cl A2A 3.327%, 10/27/08 (C) 1,991 1,861 Merrill Lynch Mortgage Investors, Ser 2007-SL1, Cl A1 3.507%, 10/27/08 (C) 2,043 703 Morgan Stanley ABS Capital I, Ser 2005-HE6, Cl A2C 3.527%, 10/27/08 (C) 1,600 1,375 Ownit Mortgage Loan Asset-Backed Certificates, Ser 2006-1, Cl AF1 5.424%, 12/25/36 (B) 223 221 RAAC Series, Ser 2007-SP1, Cl A1 3.357%, 10/27/08 (C) 1,941 1,732 Resmae Mortgage Loan Trust, Ser 2006-1, Cl A2B 3.357%, 10/27/08 (C) (D) 1,000 849 Saco I Trust, Ser 2005-10, Cl 2A1 3.467%, 10/27/08 (C) 2,415 1,986 Securitized Asset-Backed Receivables Trust LLC, Ser 2005-HE1, Cl A3C 3.537%, 10/27/08 (C) 400 337 SLM Student Loan Trust, Ser 2006-C, Cl C 3.209%, 12/15/08 (C) 1,000 654 Structured Asset Investment Loan Trust, Ser 2003-BC4, Cl M2 6.207%, 10/27/08 (C) 154 111 Structured Asset Securities, Face Amount Market Value Description ($ Thousands) ($ Thousands) - -------------------------------------------- --------------- --------------- Ser 2007-BC1, Cl A4 3.337%, 10/27/08 (C) $ 1,400 $ 838 Wachovia Student Loan Trust, Ser 2006-1, Cl B 3.040%, 10/27/08 (C) (D) 3,200 2,475 --------------- 22,012 --------------- Total Asset-Backed Securities (Cost $55,947) ($ Thousands) 37,861 --------------- CORPORATE OBLIGATIONS -- 0.0% CONSUMER DISCRETIONARY -- 0.0% Autozone 6.500%, 01/15/14 340 336 --------------- FINANCIALS -- 0.0% Discover Financial Services 6.450%, 06/12/17 (C) 115 83 Shinsei Finance Cayman 6.418%, 07/20/09 (C) (D) 400 169 Washington Mutual Preferred Funding 6.534%, 03/29/49 (C) (D) 400 1 --------------- 253 --------------- Total Corporate Obligations (Cost $1,268) ($ Thousands) 589 --------------- CASH EQUIVALENT -- 5.7% SEI Daily Income Trust, Prime Obligation Fund, Cl A, 2.350%**++ 71,010,213 71,010 --------------- Total Cash Equivalent (Cost $71,010) ($ Thousands) 71,010 --------------- U.S. TREASURY OBLIGATIONS -- 1.1% U.S. Treasury Bills 1.933%, 12/04/08 (E) (F) 870 869 1.237%, 11/20/08 (E) (F) 3,609 3,608 U.S. Treasury Bond TIPS 3.000%, 07/15/12 4,558 4,744 2.375%, 04/15/11 (F) 1,469 1,486 2.375%, 01/15/25 (F) 3,110 3,013 --------------- Total U.S. Treasury Obligations (Cost $14,012) ($ Thousands) 13,720 --------------- 70 SEI Asset Allocation Trust / Semi-Annual Report / September 30, 2008 Face Amount ($ Thousands)/ Shares/ Market Value Description Contracts ($ Thousands) - -------------------------------------------- --------------- --------------- U.S. GOVERNMENT AGENCY OBLIGATIONS -- 1.1% FNMA 2.798%, 02/11/09 (F) $ 300 $ 297 2.611%, 02/02/09 (F) 2,800 2,772 2.621%, 12/10/08 (F) 1,650 1,642 FHLMC 2.717%, 02/09/09 (F) 1,021 1,010 2.102%, 11/03/08 (F) 8,379 8,364 --------------- Total U.S. Government Agency Obligations (Cost $14,089) ($ Thousands) 14,085 --------------- Total Investments -- 119.2% (Cost $1,659,619) ($ Thousands) $ 1,490,625 =============== COMMON STOCK SOLD SHORT -- (13.8)% CONSUMER DISCRETIONARY -- (2.7)% Amazon.com* (10,700) (779) Apollo Group, Cl A* (24,545) (1,456) Autozone* (648) (80) Centex (97,100) (1,573) Central European Media Enterprises, Cl A* (33,969) (2,222) Choice Hotels International (32,900) (892) Clear Channel Outdoor Holdings, Cl A* (26,300) (360) CTC Media* (2,036) (31) DR Horton (173,324) (2,257) DreamWorks Animation SKG, Cl A* (47,866) (1,505) Eastman Kodak (10,800) (166) EW Scripps, Cl A (38,503) (272) Gannett (18,643) (315) Goodyear Tire & Rubber* (58,800) (900) Hillenbrand (20,634) (416) International Game Technology (2,000) (34) KB Home (33,049) (650) Lamar Advertising, Cl A* (6,664) (206) Las Vegas Sands* (40,600) (1,466) Lennar, Cl A (114,600) (1,741) Liberty Media - Entertainment, Cl A* (8,480) (212) Liz Claiborne (7,775) (128) LKQ* (31,316) (531) Marriott International, Cl A (2,800) (73) MDC Holdings (5,790) (212) MGM Mirage* (58,000) (1,653) Newell Rubbermaid (86,500) (1,493) News, Cl A (24,300) (291) Nike, Cl B (12,900) (863) OfficeMax (20,067) (178) O'Reilly Automotive* (72,373) (1,937) Orient-Express Hotels, Cl A (33,000) (796) priceline.com* (16,500) (1,129) Pulte Homes (124,000) (1,732) Regal Entertainment Group, Cl A (78,009) (1,231) Market Value Description Shares ($ Thousands) - -------------------------------------------- --------------- --------------- Royal Caribbean Cruises (10,364) $ (215) Saks* (57,800) (535) Scientific Games, Cl A* (54,600) (1,257) Scripps Networks Interactive, Cl A (1,800) (65) Ticketmaster* (22,000) (236) Toll Brothers* (26,267) (663) Washington Post, Cl B (300) (167) Weight Watchers International (31,176) (1,141) --------------- (34,059) --------------- CONSUMER STAPLES -- (0.4)% Central European Distribution* (19,200) (872) Dr Pepper Snapple Group* (34,199) (906) Energizer Holdings* (23,424) (1,887) Estee Lauder, Cl A (5,400) (270) Hansen Natural* (8,744) (265) JM Smucker (2,426) (123) Smithfield Foods* (39,400) (626) --------------- (4,949) --------------- ENERGY -- (1.8)% Atwood Oceanics* (947) (34) BJ Services (27,600) (528) Cabot Oil & Gas (32,900) (1,189) Cameco (48,800) (1,089) Chesapeake Energy (74,544) (2,673) Delta Petroleum* (73,300) (995) Denbury Resources* (4,700) (89) Diamond Offshore Drilling (6,403) (660) Dril-Quip* (15,400) (668) Enbridge (46,200) (1,760) Encore Acquisition* (3,718) (155) Exterran Holdings* (19,800) (633) Foundation Coal Holdings (10,800) (384) Frontier Oil (5,400) (99) Global Industries* (111,386) (773) Goodrich Petroleum* (23,100) (1,007) Hercules Offshore* (9,900) (150) Holly (35,100) (1,015) National Oilwell Varco* (13,100) (658) Overseas Shipholding Group (3,703) (216) PetroHawk Energy* (44,600) (965) Range Resources (68,073) (2,918) Rowan (3,400) (104) SandRidge Energy* (10,500) (206) Teekay Shipping (24,229) (639) Tetra Technologies* (6,152) (85) TransCanada (55,100) (1,992) Transocean (3,700) (406) Unit* (544) (27) --------------- (22,117) --------------- SEI Asset Allocation Trust / Semi-Annual Report / September 30, 2008 71 SCHEDULE OF INVESTMENTS Large Cap Diversified Alpha Fund (Continued) September 30, 2008 Market Value Description Shares ($ Thousands) - -------------------------------------------- --------------- --------------- FINANCIALS -- (2.0)% Affiliated Managers Group* (3,662) $ (303) Alexandria Real Estate Equities+ (4,200) (473) Arthur J. Gallagher (5,800) (149) Assured Guaranty (54,700) (889) AvalonBay Communities+ (5,800) (571) Bancorpsouth (2,500) (70) Brown & Brown (23,100) (499) CapitalSource+ (87,771) (1,080) Citigroup (105,000) (2,154) Commerce Bancshares (6,200) (288) Conseco* (83,069) (292) Digital Realty Trust+ (1,500) (71) Federal Realty Investment Trust+ (4,600) (394) Fidelity National Financial, Cl A (76,712) (1,128) First American (21,600) (637) First Horizon National (214,511) (2,008) Forest City Enterprises, Cl A (50,800) (1,558) Goldman Sachs Group (4,039) (517) HCC Insurance Holdings (14,400) (389) Jefferies Group (50,219) (1,125) Lazard, Cl A (12,700) (543) Legg Mason (41,566) (1,582) Markel* (600) (211) Marshall & Ilsley (54,820) (1,105) Mercury General (7,500) (411) MF Global* (7,084) (31) MGIC Investment (58,460) (411) Morgan Stanley (8,116) (187) MSCI, Cl A* (8,529) (205) Nationwide Financial Services, Cl A (6,968) (344) OneBeacon Insurance Group, Cl A (3,786) (80) Sovereign Bancorp (69,095) (273) Student Loan (872) (81) TFS Financial (87,400) (1,094) UDR+ (10,646) (278) Ventas+ (60,088) (2,970) Webster Financial (5,752) (145) XL Capital, Cl A (54,802) (983) --------------- (25,529) --------------- HEALTH CARE -- (1.6)% Advanced Medical Optics* (10,000) (178) Amylin Pharmaceuticals* (3,467) (70) BioMarin Pharmaceuticals* (85,708) (2,270) Brookdale Senior Living (65,700) (1,445) Celgene* (8,400) (532) Henry Schein* (14,800) (797) Hologic* (43,197) (835) Lincare Holdings* (30,714) (924) Millipore* (7,300) (502) Mylan Laboratories* (152,099) (1,737) Market Value Description Shares ($ Thousands) - -------------------------------------------- --------------- --------------- NuVasive* (28,600) $ (1,411) Omnicare (17,800) (512) Onyx Pharmaceuticals* (24,900) (901) Perrigo (42,729) (1,643) Resmed* (18,800) (808) Schering-Plough (28,800) (532) Tenet Healthcare* (363,300) (2,016) Varian Medical Systems* (2,700) (154) VCA Antech* (57,400) (1,692) Vertex Pharmaceuticals* (39,100) (1,300) Waters* (371) (22) --------------- (20,281) --------------- INDUSTRIALS -- (1.4)% Aecom Technology* (28,600) (699) Alexander & Baldwin (11,600) (511) Alliant Techsystems* (1,500) (141) AMR* (111,517) (1,095) Copa Holdings, Cl A (12,513) (407) Corporate Executive Board (8,204) (256) Corrections Corp of America* (922) (23) Covanta Holding* (5,872) (141) Delta Air Lines* (42,403) (316) Dun & Bradstreet (9,552) (901) Expeditors International of Washington (12,600) (439) FTI Consulting* (51,972) (3,754) General Cable* (18,400) (656) IHS, Cl A* (13,900) (662) John Bean Technologies* (7,722) (98) Kennametal (33,500) (909) McDermott International* (8,583) (219) Oshkosh Truck (51,316) (675) Pall (13,600) (468) Pitney Bowes (76,584) (2,547) Quanta Services* (50,300) (1,359) Shaw Group* (13,900) (427) Southwest Airlines (77,900) (1,130) SPX (1,700) (131) --------------- (17,964) --------------- INFORMATION TECHNOLOGY -- (2.5)% Alliance Data Systems* (9,676) (613) Amphenol, Cl A (31,400) (1,260) Ansys* (11,916) (451) Applied Materials (43,700) (661) Autodesk* (6,900) (231) AVX (17,400) (177) Cadence Design Systems* (200,700) (1,357) Ciena* (25,045) (252) Cognizant Technology Solutions, Cl A* (27,100) (619) CommScope* (31,200) (1,081) Concur Technologies* (31,300) (1,198) 72 SEI Asset Allocation Trust / Semi-Annual Report / September 30, 2008 Market Value Description Shares ($ Thousands) - -------------------------------------------- --------------- --------------- EchoStar, Cl A* (12,900) $ (311) Electronic Arts* (19,900) (736) Equinix* (36,800) (2,556) Fiserv* (21,052) (996) Iron Mountain* (78,200) (1,909) Itron* (9,423) (834) Kla-Tencor (31,200) (987) Lam Research* (48,962) (1,542) Linear Technology (63,784) (1,956) Micron Technology* (148,100) (600) Molex (47,500) (1,066) Motorola (21,800) (156) NeuStar, Cl A* (14,000) (278) Novell* (29,400) (151) Novellus Systems* (57,800) (1,135) Nuance Communications* (18,438) (225) Nvidia* (79,000) (846) ON Semiconductor* (101,700) (687) Rambus* (129,942) (1,670) Red Hat* (58,100) (876) Salesforce.com* (28,700) (1,389) SanDisk* (32,746) (640) Tellabs* (24,500) (99) Varian Semiconductor Equipment Associates* (45,808) (1,151) Vishay Intertechnology* (11,797) (78) --------------- (30,774) --------------- MATERIALS -- (0.9)% Albemarle (6,600) (204) Aptargroup (11,700) (458) Bemis (1,840) (48) Century Aluminum* (53,890) (1,492) Eagle Materials (48,333) (1,081) Greif, Cl A (7,138) (468) Huntsman (46,800) (590) Ivanhoe Mines* (155,100) (940) Owens-Illinois* (15,808) (465) Scotts Miracle-Gro, Cl A (19,321) (457) Sealed Air (3,100) (68) Silver Standard Resources* (31,800) (526) Temple-Inland (8,000) (122) Weyerhaeuser (63,704) (3,859) --------------- (10,778) --------------- Market Value Description Shares ($ Thousands) - -------------------------------------------- --------------- --------------- TELECOMMUNICATION SERVICES -- (0.3)% Embarq (30,399) $ (1,233) Frontier Communications (101,057) (1,162) MetroPCS Communications* (43,600) (610) NII Holdings* (23,400) (887) --------------- (3,892) --------------- UTILITIES -- (0.2)% American Water Works (6,527) (140) Constellation Energy Group (17,000) (413) Mirant* (31,497) (576) NSTAR (4,900) (164) PPL (19,800) (733) Vectren (3,800) (106) --------------- (2,132) --------------- Total Common Stock Sold Short (Proceeds $(207,537)) ($ Thousands) (172,475) --------------- A summary of the open futures contracts held by the Fund at September 30, 2008, is as follows (see Note 2 in Notes to Financial Statements): UNREALIZED NUMBER OF APPRECIATION TYPE OF CONTRACTS EXPIRATION (DEPRECIATION) CONTRACT LONG (SHORT) DATE ($ THOUSANDS) - -------- ------------ ---------- -------------- 10-Year Swap (283) Dec-2008 $ 576 30-Day FED Fund (12) Oct-2008 (19) 90-Day Euro$ 55 Mar-2009 (86) 90-Day Euro$ 153 Jun-2009 296 90-Day Euro$ 104 Sep-2009 163 90-Day Euro$ 4 Dec-2009 (8) 90-Day Euro$ (20) Mar-2010 (65) 90-Day Euro$ (119) Jun-2010 (346) 90-Day Euro$ (18) Mar-2011 (27) 90-Day Euro$ (5) Jun-2011 (1) 90-Day Euro$ (3) Sep-2011 0 90-Day Euro$ (9) Dec-2011 (7) 90-Day Euro$ (9) Mar-2012 (8) 90-Day Euro$ (4) Jun-2012 (1) 90-Day Euro$ (4) Sep-2012 (2) S&P Composite Index 713 Dec-2008 (14,732) U.S. 10-Year Note (207) Dec-2008 198 U.S. 2-Year Note 241 Dec-2008 290 U.S. 5-Year Note 68 Dec-2008 13 U.S. Long Treasury Bond (93) Dec-2008 57 -------- $(13,709) ======== SEI Asset Allocation Trust / Semi-Annual Report / September 30, 2008 73 SCHEDULE OF INVESTMENTS Large Cap Diversified Alpha Fund (Continued) September 30, 2008 A summary of outstanding swap agreements held by the Fund at September 30, 2008, is as follows (see Note 2 in Notes to Financial Statements): CREDIT DEFAULT SWAPS NET UNREALIZED (PAYS)/ NOTIONAL APPRECIATION BUY/SELL RECEIVES TERMINATION AMOUNT (DEPRECIATION) COUNTERPARTY REFERENCE ENTITY/OBLIGATION PROTECTION RATE DATE ($ THOUSANDS) ($ THOUSANDS) - ------------------- ----------------------------------------- ---------- -------- ----------- ------------- -------------- Bank Of America Alcan Inc., 4.875%, 09/15/12 Buy (0.35)% 12/20/13 $ 750 $ 2 Bank Of America Alcan Inc., 4.875%, 09/15/12 Buy (0.32) 03/20/14 650 3 Goldman Sachs Anheuser-Busch Cos Inc., 5.625%, 10/01/10 Buy (1.08) 09/20/13 750 (1) Barclays Anheuser-Busch Cos Inc., 5.625%, 10/01/10 Buy (1.08) 09/20/13 750 (2) Bank Of America Autozone Inc., 5.875%, 10/15/20 Buy (0.44) 12/20/11 750 6 JPMorgan Chase Bank Autozone Inc., 5.875%, 10/15/20 Buy (0.46) 12/20/11 750 6 Bank Of America Black & Decker Corp., 7.125%, 06/01/11 Buy (0.55) 12/20/11 750 7 JPMorgan Chase Bank Black & Decker Corp., 7.125%, 06/01/11 Buy (0.55) 12/20/11 750 17 Goldman Sachs Borgwarner Inc., 6.50%, 02/15/09 Buy (0.66) 03/20/13 1,250 8 Goldman Sachs Borgwarner Inc., 6.50%, 02/15/09 Buy (0.80) 03/20/13 1,000 1 Bank Of America Campbell Soup Co., 4.875, 10/01/13 Buy (0.20) 06/20/14 1,150 5 JPMorgan Chase Bank Carnival Corp., 6.65%, 01/15/28 Buy (0.22) 06/20/12 650 19 Goldman Sachs CDX.NA.LG.9 Index Buy (0.60) 12/20/12 1,250 10 Goldman Sachs Centurytel Inc., 6.00%, 04/01/17 Buy (1.10) 03/20/13 1,250 18 JPMorgan Chase Bank CMBX.NA.A 2 Index Buy (0.25) 03/15/49 1,000 235 Goldman Sachs CMBX.NA.A 3 Index Buy (0.62) 12/13/49 1,000 13 Bank Of America Computer Science Corp., 5.00%, 02/15/13 Buy (0.65) 06/20/13 1,500 (6) Bank Of America Darden Restaurants Inc., 7.125%, 02/01/16 Buy (0.45) 12/20/11 750 27 Merrill Lynch Dow Chemical Inc., 6.00%, 10/01/12 Buy (0.25) 12/20/13 750 21 JPMorgan Chase Bank Dow Chemical Inc., 6.00%, 10/01/12 Buy (0.26) 12/20/13 750 9 JPMorgan Chase Bank Gap Inc., 8.80%, 12/15/08 Buy (1.18) 12/20/11 750 13 Bank Of America Gap Inc., 8.80%, 12/15/08 Buy (1.18) 12/20/11 750 12 JPMorgan Chase Bank Hasbro Inc., 2.75%, 12/01/21 Buy (0.39) 12/20/11 750 15 Bank Of America Johnson Controls Inc., 7.125%, 07/15/17 Buy (0.37) 12/20/13 750 38 Bank Of America Johnson Controls Inc., 7.125%, 07/15/17 Buy (0.39) 12/20/13 750 17 JPMorgan Chase Bank Jones Apparel Group., 5.125%, 11/15/14 Buy (0.77) 12/20/11 750 36 Merrill Lynch Kroger Co. 5.50%, 02/01/13 Buy (0.64) 03/20/13 1,500 (5) Bank Of America Lowes Companies Inc., 8.25%, 06/01/10 Buy (0.95) 03/20/13 1,000 (12) Bank Of America Lowes Companies Inc., 8.25%, 06/01/10 Buy (0.60) 09/20/13 1,250 6 Merrill Lynch Lowes Companies Inc., 8.25%, 06/01/10 Buy (0.13) 12/20/11 750 8 Merrill Lynch Lubrizol Corp., 7.25%, 06/15/25 Buy (0.45) 12/20/11 750 4 JPMorgan Chase Bank Lubrizol Corp., 7.25%, 06/15/35 Buy (0.45) 12/20/11 750 4 Bank Of America Lubrizol Corp., 7.25%, 06/15/25 Buy (0.81) 09/20/13 500 -- Bank Of America Masco Corp., 5.875%, 07/15/12 Buy (0.73) 12/20/13 750 39 Merrill Lynch MDC Holdings Inc., 5.50%, 05/15/13 Buy (0.90) 12/20/11 750 10 Bank Of America Meadwestavaco Corp., 6.85%, 04/01/12 Buy (0.48) 12/20/11 750 19 Bank Of America MGIC Investment Corp., 6.00%, 11/01/15 Buy (0.35) 12/20/13 750 252 JPMorgan Chase Bank MGIC Investment Corp., 6.00%, 11/01/15 Buy (0.35) 12/20/13 750 213 JPMorgan Chase Bank Nordstrom Inc., 6.95%, 03/15/28 Buy (0.28) 12/20/13 750 19 Merrill Lynch Nordstrom Inc., 6.95%, 03/15/28 Buy (0.28) 12/20/13 750 19 Bank Of America Nucor Corp., 4.875%, 10/01/12 Buy (0.22) 12/20/11 750 23 JPMorgan Chase Bank Nucor Corp., 4.875%, 10/01/12 Buy (0.22) 12/20/11 750 10 Bank Of America Pitney Bowes Inc., 4.625%, 10/01/12 Buy (0.14) 12/20/11 1,500 18 JPMorgan Chase Bank PMI Group Inc., 6.00%, 09/15/16 Buy (0.35) 12/20/13 750 283 Bank Of America PMI Group Inc., 6.00%, 09/15/16 Buy (0.35) 12/20/13 750 282 JPMorgan Chase Bank PPG Industries Inc., 7.05%, 08/15/09 Buy (0.20) 12/20/11 750 12 JPMorgan Chase Bank Radian Group Inc., 7.75%, 06/01/11 Buy (0.39) 12/20/13 750 363 Bank Of America Radian Group Inc., 7.75%, 06/01/11 Buy (0.39) 12/20/13 750 395 Merrill Lynch RR Donnelley & Sons, 4.95%, 04/01/14 Buy (0.69) 12/20/11 750 17 Bank Of America Safeway Inc., 5.80%, 08/15/12 Buy (0.59) 03/20/13 1,250 1 JPMorgan Chase Bank Safeway Inc., 5.80%, 08/15/12 Buy (0.64) 03/20/13 1,250 (1) Bank Of America Southwest Airlines Co., 6.50%, 03/01/12 Buy (1.40) 06/20/13 750 2 Merrill Lynch Southwest Airlines Co., 6.50%, 03/01/12 Buy (0.27) 12/20/11 750 43 JPMorgan Chase Bank Southwest Airlines Co., 6.50%, 03/01/12 Buy (0.27) 12/20/11 750 43 Bank Of America The Limited Inc., 6.125%, 12/01/12 Buy (0.48) 12/20/11 750 46 Bank Of America TJX Companies Inc., 7.45%, 12/15/09 Buy (0.19) 12/20/11 750 4 JPMorgan Chase Bank Washington Mutual Co., 5.25%, 09/15/17 Buy (0.32) 03/20/12 700 244 Bank Of America Weyerhaeuser Company, 6.75%, 03/15/12 Buy (0.45) 12/20/11 350 11 Merrill Lynch Weyerhaeuser Company, 6.75%, 03/15/12 Buy (0.45) 03/20/12 750 27 JPMorgan Chase Bank Whirlpool Corp., 7.75%, 07/15/16 Buy (0.34) 12/20/11 750 28 Goldman Sachs Whirlpool Corp., 7.75%, 07/15/16 Buy (1.02) 09/20/13 1,000 5 ------ $2,961 ====== 74 SEI Asset Allocation Trust / Semi-Annual Report / September 30, 2008 TOTAL RETURN SWAPS COUNTERPARTY REFERENCE ENTITY/OBLIGATION FUND PAYS FUND RECEIVES TERMINATION DATE - ------------------- ----------------------------- -------------------------- ---------------------------------- ---------------- Bank Of America BAS AAA 10YR CMBS Daily Index Negative Spread Return Initial Index Spread Plus 0 bps 10/01/08 Bank Of America BAS AAA 10YR CMBS Daily Index Negative Spread Return Initial Index Spread Minus 10 bps 10/31/08 Bank Of America BAS AAA 10YR CMBS Daily Index Negative Spread Return Initial Index Spread Minus 115 bps 12/31/08 Bank Of America BAS AAA 10YR CMBS Daily Index Negative Spread Return Initial Index Spread Minus 95 bps 01/30/09 JPMorgan Chase Bank BAS AAA 10YR CMBS Daily Index Negative Spread Return Initial Index Spread Minus 150 bps 03/31/09 JPMorgan Chase Bank BAS AAA 10YR CMBS Daily Index Negative Spread Return Initial Index Spread Minus 70 bps 10/31/08 Merrill Lynch S&P 500 Total Return Index 3-Month LIBOR Minus 12 bps Price Return 12/25/08 NET UNREALIZED NOTIONAL AMOUNT DEPRECIATION COUNTERPARTY ($ THOUSANDS) ($ THOUSANDS) - ------------------- --------------- -------------- Bank Of America $ 5,000 $ (383) Bank Of America 18,000 (1,376) Bank Of America 12,000 (918) Bank Of America 13,000 (994) JPMorgan Chase Bank 5,000 -- JPMorgan Chase Bank 12,000 (918) Merrill Lynch 23,344 (1,873) ------- $(6,462) ======= Percentages are based on Net Assets of $1,250,704 ($ Thousands). * Non-income producing security. ** Rate shown is the 7-day effective yield as of September 30, 2008. + Real Estate Investment Trust. ++ Investment in Affiliated Security (see Note 3). (A) All or a portion of this security is held as collateral for securities sold short. The total value of collateral for securities sold short at September 30, 2008 was $543,973 ($ Thousands). (B) Step Bonds -- The rate reflected on the Schedule of Investments is the effective yield on September 30, 2008. The coupon on a step bond changes on a specific date. (C) Variable Rate Security -- The rate reported on the Schedule of Investments is the rate in effect as of September 30, 2008. (D) Securities sold within terms of a private placement memorandum, exempt from registration under Section 144A of the Securities Act of 1933, as amended, and may not be sold to dealers in that program or other "accredited investors." These securities have been determined to be liquid under guidelines established by the Board of Trustees. (E) Security, or portion thereof has been pledged as collateral on open futures contracts. (F) Zero Coupon Bond -- The rate reported on the Schedule of Investments is the effective yield at time of purchase. ABS -- Asset-Based Security ADR -- American Depositary Receipt ARM -- Adjustable Rate Mortgage Cl -- Class CMBS -- Commercial Mortgage-Backed Securities CMO -- Collateralized Mortgage Obligation FHLMC -- Federal Home Loan Mortgage Corporation FNMA -- Federal National Mortgage Association GNMA -- Government National Mortgage Association IO -- Interest Only -- face amount represents notional amount LLC -- Limited Liability Company NIM -- Net Interest Margin Ser -- Series STRIPS -- Separately Traded Registered Interest and Principal Securities TBA -- To Be Announced TIPS -- Treasury Inflation Protected Security Amounts designated as "--" are $0 or rounded to $0. The accompanying notes are an integral part of the financial statements. SEI Asset Allocation Trust / Semi-Annual Report / September 30, 2008 75 Statement of Assets and Liabilities ($ Thousands) September 30, 2008 LARGE CAP DIVERSIFIED ALPHA FUND --------------------- ASSETS: Investments at value+ $ 1,419,615 Affiliated investment, at value++ 71,010 Receivable for investment securities sold 81,775 Receivable for fund shares sold 19,249 Receivable for variation margin 10,190 Dividends and interest receivable 2,171 Restricted cash held for securities sold short 1,862 Prepaid expenses 10 ------------------- Total Assets 1,605,882 ------------------- LIABILITIES: Payable for investment securities purchased 173,874 Payable for securities sold short++++ 172,475 Swap contracts, at value+++++ 2,889 Margin call 2,050 Payable to custodian 1,503 Payable for variation margin 684 Payable for fund shares redeemed 606 Investment advisory fees payable 430 Administration fees payable 381 Shareholder servicing fees payable Class A 193 Overdraft of foreign currency, at value+++ 17 Chief Compliance Officer fees payable 4 Accrued expense payable 72 ------------------- Total Liabilities 355,178 ------------------- Net Assets $ 1,250,704 ------------------- + Cost of investments and repurchase agreements 1,588,609 ++ Cost of affiliated investments 71,010 +++ Cost of foreign currency 19 ++++ Proceeds from securities sold short (207,537) +++++ Premiums received/(paid) 612 NET ASSETS: Paid-in Capital -- (unlimited authorization -- no par value) $ 1,588,027 Undistributed net investment income 2,555 Accumulated net realized loss on investments, securities sold short, option contracts, futures, swap contracts and foreign currency (188,737) Net unrealized depreciation on investments, affiliated investments, securities sold short and option contracts (133,932) Net unrealized depreciation on futures contracts (13,709) Net unrealized depreciation on swap contracts (3,501) Net unrealized appreciation on forward foreign currency contracts, foreign currencies and translation of other assets and liabilities denominated in foreign currencies 1 ------------------- Net Assets $1,250,704 ------------------- Net Asset Value, Offering and Redemption Price Per Share -- Class A $ 8.23 ($1,250,304,149 / 151,982,418 shares) ------------------- Net Asset Value, Offering and Redemption Price Per Share -- Class I $ 8.22 ($400,332 / 48,676 shares) ------------------- The accompanying notes are an integral part of the financial statements. 76 SEI Asset Allocation Trust / Semi-Annual Report / September 30, 2008 Statement of Operations ($ Thousands) For the year ended September 30, 2008 LARGE CAP DIVERSIFIED ALPHA FUND ----------- INVESTMENT INCOME: Dividends $ 24,407 Dividends from Affiliated Investments* 4,264 Interest Income 9,568 Less: Foreign Taxes Withheld (38) --------- Total Investment Income 38,201 --------- EXPENSES: Investment Advisory Fees 5,947 Administration Fees 5,314 Shareholder Servicing Fees (A) 3,795 Trustee Fees 23 Chief Compliance Officer Fees 4 Shareholder Servicing Fees (I) 1 Administration Servicing Fees (I) 1 Dividend Expense on Short Sales 4,322 Interest Expense on Short Sales 1,697 Custodian/Wire Agent Fees 96 Printing Fees 93 Professional Fees 57 Registration Fees 11 Other Expenses 49 --------- Total Expenses 21,410 --------- Less: Waiver of Investment Advisory Fees (50) Waiver of Shareholder Servicing Fees (A) (916) --------- Net Expenses 20,444 --------- NET INVESTMENT INCOME 17,757 --------- NET REALIZED AND UNREALIZED GAIN (LOSS) ON INVESTMENTS: NET REALIZED GAIN (LOSS) ON: Investments (106,881) Securities Sold Short 26,844 Futures Contracts (56,638) Written Options 7 Swap Contracts (27,127) NET CHANGE IN UNREALIZED APPRECIATION (DEPRECIATION) ON: Investments (316,639) Securities Sold Short 39,397 Futures Contracts (24,211) Written Options 35 Swap Contracts (1,055) Foreign Currency and Translation of Other Assets and Liabilities Denominated in Foreign Currencies 2 --------- NET DECREASE IN NET ASSETS RESULTING FROM OPERATIONS $(448,509) --------- * See Note 3 in Notes to Financial Statements. The accompanying notes are an integral part of the financial statements. SEI Asset Allocation Trust / Semi-Annual Report / September 30, 2008 77 Statement of Changes in Net Assets ($ Thousands) For the years ended September 30, LARGE CAP DIVERSIFIED ALPHA FUND ----------------------- 2008 2007 ---------- ---------- OPERATIONS: Net Investment Income $ 17,757 $ 16,920 Net Realized Gain (Loss) from Investments, Securities Sold Short, Futures Contracts, Written Options and Swap Contracts (163,795) 59,820 Net Realized Loss on Foreign Currency Transactions -- (1) Net Change in Unrealized Appreciation (Depreciation) on Investments, Affiliated Investments, Securities Sold Short, Futures Contracts, Written Options and Swap Contracts (302,473) 108,322 Net Change in Unrealized Appreciation on Foreign Currency and Translation of Other Assets and Liabilities Denominated in Foreign Currency 2 1 ---------- ---------- Net Increase (Decrease) in Net Assets Resulting from Operations (448,509) 185,062 ---------- ---------- DIVIDENDS AND DISTRIBUTIONS FROM: Net Investment Income: Class A (19,433) (15,519) Class I (5) (2) Net Realized Gains: Class A (63,042) (7,983) Class I (19) -- ---------- ---------- Total Dividends and Distributions (82,499) (23,504) ---------- ---------- CAPITAL SHARE TRANSACTIONS(1): Class A: Proceeds from Shares Issued 510,287 731,868 Reinvestment of Dividends & Distributions 81,901 23,418 Cost of Shares Redeemed (465,367) (344,582) ---------- ---------- Increase in Net Assets Derived from Class A Transactions 126,821 410,704 ---------- ---------- Class I: Proceeds from Shares Issued 61 758 Reinvestment of Dividends & Distributions 24 3 Cost of Shares Redeemed (35) (304) ---------- ---------- Increase in Net Assets Derived from Class I Transactions 50 457 ---------- ---------- Increase in Net Assets Derived from Capital Share Transactions 126,871 411,161 ---------- ---------- Net Increase (Decrease) in Net Assets (404,137) 572,719 ---------- ---------- NET ASSETS: BEGINNING OF YEAR 1,654,841 1,082,122 ---------- ---------- END OF YEAR $1,250,704 $1,654,841 ---------- ---------- UNDISTRIBUTED NET INVESTMENT INCOME INCLUDED IN NET ASSETS AT YEAR END $ 2,555 $ 4,550 ---------- ---------- (1) See Note 4 in Notes to Financial Statements for additional information. Amounts designated as "--" are $0 or have been rounded to $0. The accompanying notes are an integral part of the financial statements. 78 SEI Asset Allocation Trust / Semi-Annual Report / September 30, 2008 Financial Highlights For the years or period ended September 30, (unless otherwise indicated) For a Share Outstanding Throughout the Periods Net Realized and Distributions Total Net Asset Unrealized Dividends from Dividends, Value, Net Gains from Net Realized Distributions Beginning Investment (Losses) on Total from Investment Capital Return and Return of Period Income(1) Securities Operations Income Gains of Capital of Capital --------- ---------- ----------- ---------- ---------- ------------- ---------- ------------- LARGE CAP DIVERSIFIED ALPHA FUND Class A 2008 $11.78 $0.13 $(3.11) $(2.98) $(0.13) $(0.44) $-- $(0.57) 2007 10.38 0.14 1.47 1.61 (0.13) (0.08) -- (0.21) 2006(2) 10.00 0.10 0.34 0.44 (0.06) -- -- (0.06) Class I 2008 $11.78 $0.09 $(3.11) $(3.02) $(0.10) $(0.44) $-- $(0.54) 2007 10.38 0.11 1.48 1.59 (0.11) (0.08) -- (0.19) 2006(3) 10.28 0.01 0.09 0.10 -- -- -- -- Ratio of Ratio of Expenses Expenses to Average to Average Net Assets Ratio of Net Ratio of Net Assets (Excluding Investment Net Asset Net Assets Expenses (Excluding Fees Paid Income Portfolio Value, End Total End of Period to Average Fees Paid Indirectly to Average Turnover of Period Return+ ($Thousands) Net Assets Indirectly) and Waivers) Net Assets Rate+ ---------- ------- ------------- ---------- ----------- ------------ ------------ --------- LARGE CAP DIVERSIFIED ALPHA FUND Class A 2008 $ 8.23 (26.42)% $1,250,304 1.35%(5) 1.35%(5) 1.41% 1.17% 93% 2007 11.78 15.64 1,654,324 1.21(4) 1.21(4) 1.29 1.25 84 2006(2) 10.38 4.44 1,082,101 1.09++ 1.09++ 1.16 1.18 72 Class I 2008 $ 8.22 (26.70)% $ 400 1.60%(5) 1.60%(5) 1.66% 0.92% 93% 2007 11.78 15.42 517 1.46(4) 1.46(4) 1.54 0.99 84 2006(3) 10.38 0.97 21 1.08++ 1.08++ 1.15 1.12 72 + Returns and turnover rates are for the period indicated and have not been annualized. ++ The expense ratios include dividend expense and interest expense on securities sold short. Had these expenses been excluded the ratios would have been 0.95% and 0.75% for Class A and Class I Shares, respectively. (1) Per share net investment income calculated using average shares. (2) Commenced operations on December 14, 2005. All ratios for the period have been annualized. (3) Commenced operations on September 14, 2006. All ratios for the period have been annualized. (4) The expense ratios include dividend expense and interest expense on securities sold short. Had these expenses been excluded the ratios would have been 0.94% and 1.20% for Class A and Class I Shares, respectively. (5) The expense ratios include dividend expense and interest expense on securities sold short. Had these expenses been excluded the ratios would have been 1.15% and 1.40% for Class A and Class I, respectively. Amounts designated as "--" are $0 or have been rounded to $0. The accompanying notes are an integral part of the financial statements. SEI Asset Allocation Trust / Semi-Annual Report / September 30, 2008 79 Notes to Financial Statements September 30, 2008 1. ORGANIZATION SEI Institutional Managed Trust (the "Trust") is organized as a Massachusetts business trust under a Declaration of Trust dated October 20, 1986. The Trust is registered under the Investment Company Act of 1940, as amended, as an open-end investment company with 19 Funds: Large Cap Value, Large Cap Growth, Tax-Managed Large Cap, Large Cap Diversified Alpha, S&P 500 Index, Small Cap Value, Small Cap Growth, Tax-Managed Small Cap, Small/Mid Cap Diversified Alpha, Mid-Cap, U.S. Managed Volatility, Global Managed Volatility, Tax-Managed Managed Volatility, Real Estate, Enhanced Income, Core Fixed Income, High Yield Bond, Real Return Plus and Prime Obligation Funds (each a "Fund," collectively the "Funds"). The Trust is registered to offer: Class A shares of the Funds; Class E shares of the S&P 500 Fund; Class I shares of the Large Cap Value, Large Cap Growth, Large Cap Diversified Alpha, S&P 500 Index, Small Cap Value, Small Cap Growth, Small/Mid Cap Diversified Alpha, Mid-Cap, U.S. Managed Volatility, Global Managed Volatility, Real Estate, Enhanced Income, Core Fixed Income, High Yield Bond and Real Return Plus Funds; and Class Y shares of the Tax-Managed Large Cap Fund. The assets of each Fund are segregated, and a shareholder's interest is limited to the Fund in which shares are held. The Funds' prospectuses provide a description of each Fund's investment objective, policies, and strategies. As of September 30, 2008, the Real Return Plus and Prime Obligation Funds had not yet commenced operations. 2. SIGNIFICANT ACCOUNTING POLICIES The following is a summary of the significant accounting policies followed by the Fund. USE OF ESTIMATES -- The preparation of financial statements, in conformity with U.S. 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 increases and decreases in net assets from operations during the reporting period. Actual results could differ from those estimates. SECURITY VALUATION -- Securities listed on a securities exchange, market or automated quotation system for which quotations are readily available (except for securities traded on NASDAQ) are valued at the last quoted sale price on the primary exchange or market (foreign or domestic) on which they are traded, or, if there is no such reported sale, at the most recent quoted bid price. For securities traded on NASDAQ, the NASDAQ Official Closing Price will be used. If available, debt securities are priced based upon valuations provided by independent, third-party pricing agents. Such values generally reflect the last reported sales price if the security is actively traded. The third-party pricing agents may also value debt securities at an evaluated bid price by employing methodologies that utilize actual market transactions, broker-supplied valuations, or other methodologies designed to identify the market value for such securities. Debt obligations with remaining maturities of sixty days or less may be valued at their amortized cost, which approximates market value. Prices for most securities held in the Fund are provided daily by recognized independent pricing agents. If a security price cannot be obtained from an independent, third-party pricing agent, the Fund seeks to obtain a bid price from at least one independent broker. Securities for which market prices are not "readily available" are valued in accordance with Fair Value Procedures established by the Fund's Board of Trustees. The Fund's Fair Value Procedures are implemented through a Fair Value Committee (the "Committee") designated by the Fund's Board of Trustees. Some of the more common reasons that may necessitate that a security be valued using Fair Value Procedures include: the security's trading has been halted or suspended; the security has been de-listed from a national exchange; the security's primary trading market is temporarily closed at a time when, under normal conditions, it would be open; or the security's primary pricing source is not able or willing to provide a price. When a security is valued in accordance with the Fair Value Procedures, the Committee will determine the value after taking into consideration relevant information reasonably available to the Committee. For securities that principally trade on a foreign market or exchange, a significant gap in time can exist between the time of a particular security's last trade and the time at which the Fund calculates its net asset value. The closing prices of such securities may no longer reflect their market value at the time the Fund calculates net asset value if an event that could materially affect the value of those securities (a "Significant Event") has occurred between the time of the security's last close and the time that the Fund calculates net asset value. A Significant Event may relate to a single issuer or to an entire market sector. If the adviser or sub-adviser of the Fund becomes aware of a Significant Event that has occurred with respect to a security or group of securities after the closing of the exchange or market on which the security or securities principally trade, but before the time at which the Fund calculates net asset value, it may request that a Fair Value Committee Meeting be called. In addition, the Fund's administrator monitors price movements among certain selected indices, securities and/or baskets of securities that may be an indicator that the closing prices received earlier from foreign exchanges or markets may not reflect market value at the time the Fund calculates net asset value. If price movements in a monitored index or security exceed levels established by the administrator, the administrator notifies the adviser or sub-adviser for the Fund holding the relevant securities that such limits have been exceeded. In such event, the adviser or sub-adviser makes the determination whether the Fair Value Committee Meeting should be called based on the information provided. Options and warrants for which the primary market is a national securities exchange are valued at the last sale price on the exchange on which they are traded, or, in the absence of any sale, at the closing 80 SEI Asset Allocation Trust / Semi-Annual Report / September 30, 2008 bid price. Options and warrants not traded on a national securities exchange are valued at the last quoted bid price. SECURITY TRANSACTIONS AND INVESTMENT INCOME -- Security transactions are recorded on the trade date. Costs used in determining net realized capital gains and losses on the sale of securities are on the basis of specific identification. Dividend income is recognized on the ex-dividend date, and interest income is recognized using the accrual basis of accounting. Income from payment-in-kind securities is recorded daily based on the effective interest method of accrual. Distributions received on securities that represent a return of capital or capital gain are recorded as a reduction of cost of investments and/or as a realized gain. The Trust estimates the components of distributions received that may be considered nontaxable distributions or capital gain distributions. Amortization and accretion is calculated using the scientific interest method, which approximates the effective interest method over the holding period of the security. Amortization of premiums and discounts is included in interest income. REPURCHASE AGREEMENTS -- Securities pledged as collateral for repurchase agreements are held by the Fund's custodian bank until the repurchase date of the repurchase agreement. The Fund also invests in tri-party repurchase agreements. Securities held as collateral for tri-party repurchase agreements are maintained by the broker's custodian bank in a segregated account until the repurchase date of the repurchase agreement. Provisions of the repurchase agreements and the Trust's policies require that the market value of the collateral, including accrued interest thereon, is sufficient in the event of default by the counterparty. If the counterparty defaults and the value of the collateral declines, or if the counterparty enters into an insolvency proceeding, realization of the collateral by the Fund may be delayed or limited. COMPENSATING BALANCES -- Funds with cash overdrafts in excess of $100,000 are required to leave 112% in compensating balance with US Bank, the custodian of the Trust, on the following day. Funds with positive cash balances in excess of $100,000 are allowed to overdraw 90% of the balance with US Bank on the following day. EXPENSES -- Expenses that are directly related to the Fund are charged directly to the Fund. Other operating expenses of the Funds are prorated to the Funds on the basis of relative daily net assets. CLASSES -- Class-specific expenses are borne by that class of shares. Income, realized and unrealized gains/losses and non class-specific expenses are allocated to the respective class on the basis of relative daily net assets. FOREIGN CURRENCY TRANSLATION -- The books and records of the Fund are maintained in U.S. dollars on the following basis: (I) market value of investment securities, assets and liabilities at the current rate of exchange; and (II) purchases and sales of investment securities, income and expenses at the relevant rates of exchange prevailing on the respective dates of such transactions. The Fund does not isolate that portion of gains and losses on investments in equity securities that is due to changes in the foreign exchange rates from that which is due to changes in market prices of equity securities. The Fund reports certain foreign-currency-related transactions as components of realized gains for financial reporting purposes, whereas such components are treated as ordinary income for Federal income tax purposes. FUTURES CONTRACTS -- The Fund utilized futures contracts during the year or period ended September 30, 2008. The Fund's investments in futures contracts are designed to enable the Fund to more closely approximate the performance of its benchmark indices. Initial margin deposits of cash or securities are made upon entering into futures contracts. The contracts are marked to market daily and the resulting changes in value are accounted for as unrealized gains and losses. Variation margin payments are paid or received, depending upon whether unrealized gains or losses are incurred. When the contract is closed, the Fund records a realized gain or loss equal to the difference between the proceeds from (or cost of) the closing transaction and the amount invested in the contract. Risks of entering into futures contracts include the possibility that there will be an imperfect price correlation between the futures and the underlying securities. Second, it is possible that a lack of liquidity for futures contracts could exist in the secondary market, resulting in an inability to close a position prior to its maturity date. Third, the futures contract involves the risk that the Fund could lose more than the original margin deposit required to initiate a futures transaction. Finally, the risk exists that losses could exceed amounts disclosed on the Statement of Assets and Liabilities. OPTIONS/SWAPTIONS WRITING/PURCHASING -- The Fund may invest in financial options/swaptions contracts for the purpose of hedging its existing fund securities, or securities that the Fund intends to purchase, against fluctuations in fair value caused by changes in prevailing market interest rates. When the Fund writes or purchases an option/swaption, an amount equal to the premium received or paid by the Fund is recorded as a liability or an asset and is subsequently adjusted to the current market value of the option/swaption written or purchased. Premiums received or paid from writing or purchasing options/swaptions which expire unexercised are treated by the Fund on the expiration date as realized gains or losses. The difference between the premium and the amount paid or received on effecting a closing purchase or sale transaction, including brokerage commissions, is also treated as a realized gain or loss. If an option/swaption is exercised, the premium paid or received is added to the cost of the purchase or proceeds from the sale in determining whether the Fund has realized a gain SEI Asset Allocation Trust / Semi-Annual Report / September 30, 2008 81 Notes to Financial Statements (Continued) September 30, 2008 or a loss on investment transactions. The Large Cap Diversified Alpha Fund had option/swaption contracts as of September 30, 2008 as disclosed in the Fund's Schedule of Investments. The risk in writing a call option/swaption is that the Fund gives up the opportunity for profit if the market price of the security increases. The risk in writing a put option/swaption is that the Fund may incur a loss if the market price of the security decreases and the option/swaption is exercised. The risk in purchasing an option/swaption is that the Fund pays a premium whether or not the option/swaption is exercised. The Fund also has the additional risk of being unable to enter into a closing transaction at an acceptable price if a liquid secondary market does not exist. Option/swaption contracts also involve the risk that they may not work as intended due to unanticipated developments in market conditions or other causes. Finally, the risk exists that losses on written options could exceed amounts disclosed on the Statement of Assets and Liabilities. Written option transactions entered into during the year ended September 30, 2008 are summarized as follows: Number of Premium Contracts ($ Thousands) --------- ------------- Balance at the beginning of period 43 $ 7 Written -- -- Expired -- -- Closing Buys (43) (7) --- --- Balance at the end of period -- -- === === SECURITIES SOLD SHORT -- As consistent with the Fund's investment objectives, the Fund may engage in short sales. Short sales are transactions under which the Fund sells a security it does not own. To complete such a transaction, the Fund must borrow the security to make delivery to the buyer. The Fund then is obligated to replace the security borrowed by purchasing the security at the market price at the time of the replacement. The price at such time may be more or less than the price at which the security was sold by the Fund. Until the security is replaced, the Fund is required to pay the lender amounts equal to any dividends or interest that accrue during the period of the loan. Dividends and interest are shown as an expense for financial reporting purposes. To borrow the security, the Fund also may be required to pay a premium, which would decrease proceeds of the security sold. The proceeds of the short sale are retained by the broker, to the extent necessary to meet margin requirements, until the short position is closed out. A gain, limited to the price at which the Fund sold the security short, or a loss, unlimited in size, will be recognized upon the close of a short sale. Until a Fund closes its short position or replaces the borrowed security, the Fund will: (a) maintain a segregated account containing cash or liquid securities at such a level that (i) the amount deposited in the account plus the amount deposited with the broker as collateral will equal the current value of the security sold short; and (ii) the amount deposited in the segregated account plus the amount deposited with the broker as collateral will not be less than the market value of the security at the time the security was sold short, or (b) otherwise cover the Fund's short positions. SWAP AGREEMENTS -- A swap agreement is a two-party contract under which an agreement is made to exchange returns from pre-determined investments or instruments, including a particular interest rate, foreign currency, or "basket" of securities representing a particular index. Interest rate swaps involve the exchange by the Fund with another party of their respective commitments to pay or receive interest (e.g., an exchange of floating rate payments for fixed rate payments) with respect to a notional amount of principal. Credit-default swaps involve periodic payments by the Fund or counterparty based on a specified rate multiplied by a notional amount assigned to an underlying debt instrument or group of debt instruments in exchange for the assumption of credit risk on the same instruments. In the event of a credit event, usually in the form of a credit rating downgrade, the party receiving periodic payments (i.e. floating rate payer) must pay the other party (i.e. fixed rate payer) an amount equal to the recovery rate used to settle the contracts. The recovery rate is a function of how many credit default swap investors wish to deliver the security or receive the security. The recovery rate is determined through an auction process. Total return swaps allow an investor to benefit from the cash flow without ever actually owning the underlying security. The receiver must pay any decline in value to the payer at the end of the total return swap. However, the investor does not need to make a payment if there is no decline in price. Payments can be made on various indices, bonds (i.e. mortgage backed securities, bank debt and corporate), loans or commodities. The value of a total return swap is equal to the change in value of the underlying asset versus the accrued income payment based on LIBOR or some other form of indices on the notional amount. Interest rate swaps involve the exchange by the Fund with another party of their respective commitments to pay or receive interest (e.g., an exchange of floating rate payments for fixed rate payments) with respect to a notional amount of principal to manage the Fund's exposure to interest rates. Payments received or made are recorded as realized gains or loss. The Fund could be exposed to credit or market risk due to unfavorable changes in the fluctuation of interest rates or if the counterparty defaults on its obligation to perform. Risk of loss may exceed amounts recognized on the statement of assets and liabilities. Interest rate swap contracts outstanding at period end, if any, are listed after the Fund's portfolio. In connection with swap agreements securities may be set aside as collateral by the Fund's custodian. The Fund may enter into swap agreements in order to, among other things, change the maturity or duration of the investment portfolio, to protect the Fund's value from changes in interest rates, or to expose the Fund to a different security or market. Swaps are marked-to-market daily based upon quotations from market makers and the resulting changes in market values, if any, are recorded as an unrealized gain or loss in the Statement of Operations. Net payments of interest are recorded as realized gains or losses. 82 SEI Asset Allocation Trust / Semi-Annual Report / September 30, 2008 Entering into swap agreements involves, to varying degrees, elements of credit and market risk in excess of the amounts recognized on the Statement of Assets and Liabilities. Such risks involve the possibility that there will be no liquid market for these agreements, that the counterparty to the agreement may default on its obligation to perform and that there may be unfavorable changes in the fluctuation of interest rates. Risks also arise from potential losses from adverse market movements. COLLATERALIZED DEBT OBLIGATIONS -- The Fund may invest in collateralized debt obligations ("CDOs"), which include collateralized loan obligations ("CLOs") and other similarly structured securities. CLOs are a type of asset-backed securities. A CLO is a trust typically collateralized by a pool of loans, which may include, among others, domestic and foreign senior secured loans, senior unsecured loans, and subordinate corporate loans, including loans that may be rated below investment grade or equivalent unrated loans. CDOs may charge management fees and administrative expenses. For CDOs, the cashflows from the trust are split into two or more portions, called tranches, varying in risk and yield. The riskiest portion is the "equity" tranche which bears the bulk of defaults from the bonds or loans in the trust and serves to protect the other, more senior tranches from default in all but the most severe circumstances. Since it is partially protected from defaults, a senior tranche from a CDO trust typically has a higher rating and lower yield than its underlying securities, and can be rated investment grade. Despite the protection from the equity tranche, CDO tranches can experience substantial losses due to actual defaults, increased sensitivity to defaults due to collateral default and disappearance of protecting tranches, market anticipation of defaults, as well as aversion to CDO securities as a class. The risks of an investment in a CDO depend largely on its class and its collateral securities. Normally, CLOs and other CDOs are privately offered and sold, and thus, are not registered under the securities laws. As a result, investments in CDOs may be characterized by the Fund as illiquid securities; however, an active dealer market may exist for CDOs, allowing a CDO to qualify for Rule 144A transactions. In addition to the normal risks associated with fixed income securities (e.g., interest rate risk and default risk), CDOs carry additional risks including, but are not limited to: (i) the possibility that distributions from collateral securities will not be adequate to make interest or other payments; (ii) the quality of the collateral may decline in value or default; (iii) the Fund may invest in CDOs that are subordinate to other classes; and (iv) the complex structure of the security may not be fully understood at the time of investment and may produce disputes with the issuer or unexpected investment results. DIVIDENDS AND DISTRIBUTIONS TO SHAREHOLDERS -- Dividends from net investment income are declared and paid to shareholders quarterly for the Large Cap Diversified Alpha Fund. Any net realized capital gains on sales of securities are distributed to shareholders at least annually. Dividends and distributions are recorded on the ex-dividend date. The Large Cap Diversified Alpha Fund utilized earnings and profits distributed to shareholders on redemption of shares as a part of the dividends paid deduction for income tax purposes. 3. AGREEMENTS AND OTHER TRANSACTIONS WITH AFFILIATES ADMINISTRATION AND TRANSFER AGENCY AGREEMENT -- The Trust and SEI Investments Global Funds Services (the "Administrator") are parties to an amended and restated Administration and Transfer Agency Agreement dated December 10, 2003 under which the Administrator provides administrative and transfer agency services to the Fund for an annual fee of 0.35% of the average daily net assets of the Large Cap Diversified Alpha Fund. The Administrator has agreed voluntarily to waive all or a portion of its fee in order to limit the operating expenses of the Fund. Any such waiver is voluntary and may be terminated at any time at the Administrator's sole discretion. INVESTMENT ADVISORY AGREEMENT -- SEI Investments Management Corporation ("SIMC") serves as investment adviser (the "Adviser") to the Fund. In connection with serving as Adviser, SIMC is entitled to a fee, which is calculated daily and paid monthly, based on the average daily net assets of the Fund. SIMC has voluntarily agreed to waive a portion of its fee so that the total annual expenses of the Fund, exclusive of short sale expenses, will not exceed certain voluntary expense limitations adopted by SIMC. These waivers may be terminated at any time. Accordingly, the advisory fee and voluntary expense limitations for the Fund are as follows: Voluntary Expense Voluntary Limitations Advisory Expense Prior to Fees Limitations 03/01/08 -------- ----------- ----------- Large Cap Diversified Alpha Fund, Class A 0.4000 0.9500 0.9500 Large Cap Diversified Alpha Fund, Class I 0.4000 1.2000 1.2000 As of September 30, 2008, SIMC has entered into investment sub-advisory agreements with the following parties: Investment Sub-Adviser LARGE CAP DIVERSIFIED ALPHA FUND Analytic Investors, LLC Aronson + Johnson + Ortiz, LP Delaware Management Company INTECH Investment Management, LLC Legg Mason Capital Management Inc. Quantitative Management Associates LLC Smith Breeden Associates, Inc. DISTRIBUTION AGREEMENT -- SEI Investments Distribution Co. (the "Distributor"), a wholly owned subsidiary of SEI Investments Company ("SEI"), serves as the Fund's Distributor pursuant to a distribution agreement with the Trust. The Trust has adopted a shareholder SEI Asset Allocation Trust / Semi-Annual Report / September 30, 2008 83 Notes to Financial Statements (Continued) September 30, 2008 servicing plan for Class A and Class I shares (the "Shareholder Servicing Plans") under which a shareholder servicing fee of up to 0.25% of average daily net assets attributable to Class A and Class I shares will be paid to the Distributor. In addition to the Shareholder Servicing Plans, the Class I shares have adopted administrative service plans that provide for administrative service fees payable to the Distributor of up to 0.25% of the average daily net assets attributed to that class. OTHER -- The Distribution Agreement between the Distributor and the Trust provides that the Distributor may receive compensation on fund transactions effected for the Trust in accordance with the rules of the Securities and Exchange Commission ("SEC"). Accordingly, it is expected that fund transactions may result in brokerage commissions being paid to the Distributor. SEC rules require that such commissions not exceed usual and customary commissions. Such commissions for the year ended September 30, 2008 were as follows ($ Thousands): Large Cap Diversified Alpha Fund $96 --- Under both the Shareholder Servicing Plans and administrative service plan, the Distributor may retain as profit any difference between the fee it receives and the amount it pays to third parties. For the year ended September 30, 2008, the Distributor retained 100% of the shareholder servicing fees, less the waiver, and 100% of the administration servicing fees. Certain officers and/or trustees of the Trust are also officers of the Administrator or the Adviser. The Trust pays each unaffiliated Trustee an annual fee for attendance at quarterly, interim and committee meetings. Compensation of officers and affiliated Trustees of the Trust is paid by the Adviser or Administrator. A portion of the services provided by the Chief Compliance Officer ("CCO") and his staff, whom are employees of the Administrator, are paid for by the Trust as incurred. The services include regulatory oversight of the Trust's Adviser, sub-advisers and service providers as required by SEC regulations. The CCO's services have been approved by and are reviewed by the Board. FEES PAID INDIRECTLY -- The Fund may direct certain fund trades to the Distributor who pays a portion of the Fund's expenses. Accordingly, the expenses reduced, which were used to pay third party expenses, and the effect on the Fund's expense ratio, as a percentage of the Fund's average daily net assets for the year ended September 30, 2008, can be found on the Statement of Operations. INVESTMENT IN AFFILIATED SECURITY -- The Fund may invest the cash collateral from the securities lending program in the SEI Liquidity Fund, L.P. 4. CAPITAL SHARE TRANSACTIONS Capital Share Transactions for the Fund were as follows (Thousands): For the years ended September 30, LARGE CAP DIVERSIFIED ALPHA FUND ----------------------- 10/1/07 10/1/06 to 9/30/08 to 9/30/07 ---------- ---------- Class A: Shares Issued 51,288 65,075 Shares Issued in Lieu of Dividends & Distributions 7,606 2,114 Shares Redeemed (47,337) (30,979) ------- ------- Total Class A Transactions 11,557 36,210 ------- ------- Class I: Shares Issued 6 68 Shares Issued in Lieu of Dividends & Distributions 2 -- Shares Redeemed (3) (27) ------- ------- Total Class I Transactions 5 41 ------- ------- Net Increase in Capital Share Transactions 11,562 36,251 ------- ------- Amounts designated as "--" are $0 or have been rounded to $0. 5. INVESTMENT TRANSACTIONS The cost of security purchases and proceeds from the sale of securities, other than temporary cash investments and futures, during the year or period ended September 30, 2008, were as follows: U.S. Gov't Other Total ($ Thousands) ($ Thousands) ($ Thousands) ------------- ------------- ------------- LARGE CAP DIVERSIFIED ALPHA FUND Purchases ............. $990,956 $622,953 $1,613,909 Sales ................. 949,510 622,602 1,572,112 6. FEDERAL TAX INFORMATION It is the Fund's intention to continue to qualify as a regulated investment company under Subchapter M of The Internal Revenue Code and distribute all of its taxable income (including net capital gains). Accordingly, no provision for Federal income taxes is required. Dividends from net investment income and distributions from net realized capital gains are determined in accordance with U.S. Federal income tax regulations, which may differ from those amounts determined under accounting principles generally accepted in the United 84 SEI Asset Allocation Trust / Semi-Annual Report / September 30, 2008 States. These book/tax differences are either temporary or permanent in nature. To the extent these differences are permanent, they are charged or credited to paid-in capital, undistributed net investment income or accumulated net realized gain, as appropriate, in the period that the differences arise. Accordingly, the following permanent differences, primarily attributable to different treatment for gains and losses on paydowns of mortgage- and asset-backed securities for tax purposes, return of capital, swap income reclassification, nontaxable redemption in-kind gain/loss, distribution reclassification, REIT income reclassification and utilization of earnings and profits on shareholder redemptions and net operating losses have been reclassified to/from the following accounts as of September 30, 2008: Undistributed Accumulated Paid-in Net Investment Realized Capital Income/(Loss) Gain/(Loss) ($ Thousands) ($ Thousands) ($ Thousands) ------------- -------------- ------------- Large Cap Diversified Alpha Fund $-- $(314) $314 The tax character of dividends and distributions paid during the years or period ended September 30, 2008 and September 30, 2007 (unless otherwise indicated) was as follows: Long-term Ordinary Income Capital Gain Total ($ Thousands) ($ Thousands) ($ Thousands) --------------- ------------- ------------- Large Cap Diversified Alpha Fund 2008 $51,516 $30,983 $82,499 2007 15,521 7,983 23,504 As of September 30, 2008, the components of Distributable Earnings/(Accumulated Losses) were as follows: Total Distributable Undistributed Capital Post Unrealized Other Earnings Ordinary Loss October Appreciation Temporary (Accumulated Income Carryforwards Losses (Depreciation) Differences Losses) ($ Thousands ($ Thousands) ($ Thousands) ($ Thousands) ($ Thousands) ($ Thousands) ------------- ------------- ------------- -------------- ------------- ------------- Large Cap Diversified Alpha Fund $2,506 $(3,489) $(153,227) $(183,163) $50 $(337,323) Post October losses represent losses realized on investment transactions from November 1, 2007 through September 30, 2008 that, in accordance with Federal income tax regulations, the Funds may defer and treat as having arisen in the following fiscal year. For Federal income tax purposes, capital loss carryforwards may be carried forward and applied against future capital gains as follows: Expires Expires Expires Expires Expires Expires 2016 2015 2014 2013 2012 2011 ($ Thousands) ($ Thousands) ($ Thousands) ($ Thousands) ($ Thousands) ($ Thousands) ------------- ------------- ------------- ------------- ------------- ------------- Large Cap Diversified Alpha Fund $3,489 $-- $-- $-- $-- $-- Total Capital Expires Loss 2010 Carryforwards ($ Thousands) ($ Thousands) ------------- ------------- Large Cap Diversified Alpha Fund $-- $3,489 For Federal income tax purposes, the cost of securities owned at September 30, 2008, and the net realized gains or losses on securities sold for the period, were different from amounts reported for financial reporting purposes, primarily due to wash sales which cannot be used for Federal income tax purposes in the current year and have been deferred for use in future years. The Federal tax cost and aggregate gross unrealized appreciation and depreciation on investments held by the Funds at September 30, 2008, were as follows: Federal Appreciated Depreciated Net Unrealized Tax Cost Securities Securities Depreciation ($ Thousands) ($ Thousands) ($ Thousands) ($ Thousands) ------------- ------------- ------------- -------------- Large Cap Diversified Alpha Fund $1,705,351 $110,405 $(325,131) $(214,726) Management has analyzed the Funds' tax position taken on federal income tax returns for all open tax years and has concluded that as of September 30, 2008, no provision for income tax would be required in the Funds' financial statements. The Funds' federal and state income and federal excise tax returns for tax years for which the applicable statutes of limitations have not expired are subject to examination by the Internal Revenue Service and state departments of revenue. 7. SECURITIES LENDING The Fund may lend portfolio securities to brokers, dealers and other financial organizations that meet capital and other credit requirements or other criteria established by the Trust's Board of Trustees. These loans may not exceed 33 1/3% of the total asset value of the Fund (including the loan collateral). No Fund will lend portfolio securities to its Adviser, sub-adviser or their affiliates unless it has applied for and received specific authority to do so from the SEC. Loans of portfolio securities will be fully collateralized by cash. Collateral will be maintained in an amount equal to at least 100% of the current market value of the loaned securities by marking to market daily, although the borrower will be required to deliver collateral between 102% and 105% of the market value of borrowed securities for domestic and foreign securities, respectively. However, due to market fluctuations during the day, the value of securities loaned on a particular day may, during the course of the day, exceed the value of collateral. On each business day, the amount of collateral is adjusted based on the prior day's market fluctuations and the current day's lending activity. Income from lending activity is determined by the amount of interest earned on collateral, less any amounts payable to the borrowers of the securities and the lending agent. Lending securities involves certain risks, SEI Asset Allocation Trust / Semi-Annual Report / September 30, 2008 85 Notes to Financial Statements (Concluded) September 30, 2008 including the risk that the Fund may be delayed or prevented from recovering the collateral if the borrower fails to return the securities. Cash collateral received in connection with securities lending is invested in short-term investments by the lending agent. These investments may include the SEI Liquidity Fund L.P., repurchase agreements, which are collateralized by United States Treasury and Government Agency securities, and high-quality, short-term instruments, such as floating rate corporate obligations, commercial paper, and private placements with an average weighted maturity not to exceed 60 days and a maturity not to exceed 397 days. There is no guarantee that these investments will not lose value. 8. CONCENTRATIONS/RISKS In the normal course of business, the Fund enters into contracts that provide general indemnifications by the Fund to the counterparty to the contract. The Fund's maximum exposure under these arrangements is dependent on future claims that may be made against the Fund and, therefore, cannot be estimated; however, based on experience, the risk of loss from such claims is considered remote. 9. RECENT ACCOUNTING PRONOUNCEMENTS In September 2006, the FASB issued Statement on Financial Accounting Standards ("SFAS") No. 157, "Fair Value Measurements." This standard establishes a single authoritative definition of fair value, sets out a framework for measuring fair value and requires additional disclosures about fair value measurements. SFAS No. 157 applies to fair value measurements already required or permitted by existing standards. SFAS No. 157 is effective for financial statements issued for fiscal years beginning after November 15, 2007 and interim periods within those fiscal years. The changes to current generally accepted accounting principles from the application of this Statement relate to the definition of fair value, the methods used to measure fair value, and the expanded disclosures about fair value measurements. As of September 30, 2008, the Fund does not believe the adoption of SFAS No. 157 will impact the amounts reported in the financial statements, however, additional disclosures may be required about the inputs used to develop the measurements and the effect of certain of the measurements reported in the financial statements for a fiscal period. In March 2008, the Financial Accounting Standards Board (FASB) issued Statement of Financial Accounting Standards (SFAS) No. 161, DISCLOSURES ABOUT DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES. SFAS No. 161 is effective for fiscal years and interim periods beginning after November 15, 2008. SFAS No.161 requires enhanced disclosures about the Fund's derivative and hedging activities, including how such activities are accounted for and their effect on the Fund's financial position, performance, and cash flows. Management is currently evaluating the impact the adoption of SFAS No. 161 will have on the Fund's financial statements and related disclosures. On September 12, 2008, the FASB issued FASB Staff Position ("FSP") No. FAS 133-1 and FASB Interpretation Number ("FIN") 45-4 ("FSP 133-1"), DISCLOSURES ABOUT CREDIT DERIVATIVES AND CERTAIN GUARANTEES: AN AMENDMENT OF FASB STATEMENT NO. 133 AND FASB INTERPRETATION NO. 45; AND CLARIFICATION OF THE EFFECTIVE DATE OF FASB STATEMENT NO. 161. The FSP is intended to improve disclosures about credit derivatives by requiring more information about the potential adverse effects of changes in credit risk on the financial position, financial performance, and cash flows of the sellers of credit derivatives. It amends FASB Statement No. 133, ACCOUNTING FOR DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES, to require disclosures by sellers of credit derivatives, including credit derivatives embedded in hybrid instruments. The FSP also amends FIN 45, GUARANTOR'S ACCOUNTING AND DISCLOSURE REQUIREMENTS FOR GUARANTEES, INCLUDING INDIRECT GUARANTEES OF INDEBTEDNESS TO OTHERS, to require an additional disclosure about the current status of the payment/ performance risk of a guarantee. FSP 133-1 and FIN 45-4 is effective for reporting periods (annual or interim) ending after November 15, 2008. Management of the Fund is currently assessing the impact of adopting FSP No. FAS 133-1 and FIN 45-4. 10. OTHER MATTERS (Unaudited) Due to volatility in the fixed income and equity markets, the market value of some of the Fund's holdings may currently be lower than shown in the Schedules of Investments ("SOI"). The values shown in the SOI's were the market values as of September 30, 2008 and do not reflect any market events after September 30, 2008. 86 SEI Asset Allocation Trust / Semi-Annual Report / September 30, 2008 Disclosure of Fund Expenses (Unaudited) All mutual funds have operating expenses. As a shareholder of a mutual fund, your investment is affected by these ongoing costs, which include (among others) costs for portfolio management, administrative services, and shareholder reports like this one. It is important for you to understand the impact of these costs on your investment returns. Operating expenses such as these are deducted from the mutual fund's gross income and directly reduce your final investment return. These expenses are expressed as a percentage of the mutual fund's average net assets; this percentage is known as the mutual fund's expense ratio. The following examples use the expense ratio and are intended to help you understand the ongoing costs (in dollars) of investing in your Fund and to compare these costs with those of other mutual funds. The examples are based on an investment of $1,000 made at the beginning of the period shown and held for the entire period. The table on the next page illustrates your Fund's costs in two ways: - - ACTUAL FUND RETURN. This section helps you to estimate the actual expenses after fee waivers that your Fund incurred over the period. The "Expenses Paid During Period" column shows the actual dollar expense cost incurred by a $1,000 investment in the Fund, and the "Ending Account Value" number is derived from deducting that expense cost from the Fund's gross investment return. You can use this information, together with the actual amount you invested in your Fund, to estimate the expenses you paid over that period. Simply divide your actual starting account value by $1,000 to arrive at a ratio (for example, an $8,600 account value divided by $1,000 = 8.6), then multiply that ratio by the number shown for your Fund under "Expenses Paid During Period." - - HYPOTHETICAL 5% RETURN. This section helps you compare your Fund's costs with those of other mutual funds. It assumes that your Fund had an annual 5% return before expenses during the year, but that the expense ratio (Column 3) is unchanged. This example is useful in making comparisons because the Securities and Exchange Commission requires all mutual funds to make this 5% calculation. You can assess your Fund's comparative cost by comparing the hypothetical result for your Fund in the "Expense Paid During Period" column with those that appear in the same charts in the shareholder reports for other mutual funds. NOTE: Because the return is set at 5% for comparison purposes -- NOT your Fund's actual return -- the account values shown do not apply to your specific investment. BEGINNING ENDING EXPENSE ACCOUNT ACCOUNT ANNUALIZED PAID VALUE VALUE EXPENSE DURING 4/1/08 9/30/08 RATIOS PERIOD* ---------- --------- ---------- ------- LARGE CAP DIVERSIFIED ALPHA FUND ACTUAL FUND RETURN Class A Shares $1,000.00 $ 864.30 1.07% $4.99 Class I Shares 1,000.00 862.70 1.32 6.15 HYPOTHETICAL 5% RETURN Class A Shares $1,000.00 $1,019.65 1.07% $5.40 Class I Shares 1,000.00 1,018.40 1.32 6.66 * EXPENSES ARE EQUAL TO THE FUND'S ANNUALIZED EXPENSE RATIO MULTIPLIED BY THE AVERAGE ACCOUNT VALUE OVER THE PERIOD, MULTIPLIED BY 183/366 (TO REFLECT THE ONE-HALF YEAR PERIOD SHOWN). SEI Asset Allocation Trust / Semi-Annual Report / September 30, 2008 87 Notes Notes Notes Notes Notes SEI ASSET ALLOCATION TRUST SEMI-ANNUAL REPORT SEPTEMBER 30, 2008 Robert A. Nesher, CHAIRMAN TRUSTEES William M. Doran James M. Storey George J. Sullivan, Jr. Rosemarie B. Greco Nina Lesavoy James M. Williams Mitchell A. Johnson Hubert L. Harris, Jr. OFFICERS Robert A. Nesher PRESIDENT AND CHIEF EXECUTIVE OFFICER Stephen F. Panner CONTROLLER AND CHIEF FINANCIAL OFFICER Russell Emery CHIEF COMPLIANCE OFFICER Timothy D. Barto VICE PRESIDENT, SECRETARY James Ndiaye VICE PRESIDENT, ASSISTANT SECRETARY Michael T. Pang VICE PRESIDENT, ASSISTANT SECRETARY Aaron Buser VICE PRESIDENT, ASSISTANT SECRETARY John J. McCue VICE PRESIDENT Andrew S. Decker ANTI-MONEY LAUNDERING COMPLIANCE OFFICER INVESTMENT ADVISER SEI Investments Management Corporation ADMINISTRATOR SEI Investments Global Funds Services DISTRIBUTOR SEI Investments Distribution Co. LEGAL COUNSEL Morgan, Lewis & Bockius LLP INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM KPMG LLP This report and the financial statements contained herein are submitted for the general information of the shareholders of the Trust and must be preceded or accompanied by a current prospectus. Shares of the Funds are not deposits or obligations of, or guaranteed or endorsed by, any bank. The shares are not federally insured by the Federal Deposit Insurance Corporation (FDIC), the Federal Reserve Board, or any other government agency. Investment in the shares involves risk, including the possible loss of principal. FOR MORE INFORMATION CALL 1 800 DIAL SEI (1 800 342 5734) (SEI LOGO) New ways. New answers.(R) SEI Investments Distribution Co. Oaks, PA 19456 1.800.DIAL.SEI (1.800.342.5734) SEI-F-118 (9/08) ITEM 2. CODE OF ETHICS. Not applicable for semi-annual report. ITEM 3. AUDIT COMMITTEE FINANCIAL EXPERT. Not applicable for semi-annual report. ITEM 4. PRINCIPAL ACCOUNTANT FEES AND SERVICES. Not applicable for semi-annual report. ITEM 5. AUDIT COMMITTEE OF LISTED REGISTRANTS. Not applicable. ITEM 6. SCHEDULE OF INVESTMENTS. Located under Item 1. ITEM 7. DISCLOSURE OF PROXY VOTING POLICIES AND PROCEDURES FOR CLOSED-END MANAGEMENT INVESTMENT COMPANIES. Not applicable. ITEM 8. PORTFOLIO MANAGERS OF CLOSED-END MANAGEMENT INVESTMENT COMPANIES. Not applicable. ITEM 9. PURCHASES OF EQUITY SECURITIES BY CLOSED-END MANAGEMENT COMPANY AND AFFILIATED PURCHASERS. Not applicable. ITEM 10. SUBMISSION OF MATTERS TO A VOTE OF SECURITY HOLDERS. The Registrant has a standing Nominating Committee (the "Committee") currently consisting of the Independent Trustees. The Committee is responsible for evaluating and recommending nominees for election to the registrant's Board of Trustees (the "Board"). Pursuant to the Committee's Charter, adopted on June 18th 2004 and as amended, the Committee will review all shareholder recommendations for nominations to fill vacancies on the Board if such recommendations are submitted in writing and addressed to the Committee at the Registrant's office. ITEM 11. CONTROLS AND PROCEDURES. (a) The certifying officers, whose certifications are included herewith, have evaluated the Registrant's disclosure controls and procedures within 90 days of the filing date of this report. Based on their evaluation, the certifying officers have concluded that the Registrant's disclosure controls and procedures are adequately designed, and are operating effectively to ensure, that information required to be disclosed by the Registrant in the reports it files or submits under the Securities Exchange Act of 1934 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 significant changes in the Registrant's internal control over financial reporting that occurred during the Registrant's last fiscal half-year that have materially affected, or are reasonably likely to materially affect, the Registrant's internal control over financial reporting. ITEMS 12. EXHIBITS. (a)(1) Not applicable for semi-annual report. (a)(2) A separate certification for the principal executive officer and the principal financial officer of the Registrant as required by Rule 30a-2(a) under the Investment Company Act of 1940, as amended (17 CFR 270.30a-2(a)), are filed herewith. (b) Officer certifications as required by Rule 30a-2(b) under the Investment Company Act of 1940, as amended (17 CFR 270.30a-2(b)) also accompany this filing as an exhibit. - -------------------------------------------------------------------------------- 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) SEI Asset Allocation Trust By (Signature and Title) /s/ Robert A. Nesher -------------------------- Robert A. Nesher President & CEO Date December 5, 2008 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) /s/ Robert A. Nesher -------------------------- Robert A. Nesher President & CEO Date December 5, 2008 By (Signature and Title) /s/ Stephen F. Panner -------------------------- Stephen F. Panner Controller & CFO Date December 5, 2008