UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM N-CSR CERTIFIED SHAREHOLDER REPORT OF REGISTERED MANAGEMENT INVESTMENT COMPANIES Investment Company Act file number: 811-9819 -------------------------------------------------- STATE STREET INSTITUTIONAL INVESTMENT TRUST - -------------------------------------------------------------------------------- (Exact name of registrant as specified in charter) P.O. Box 5049 Boston, Massachusetts 02206 - -------------------------------------------------------------------------------- (Address of principal executive offices)(Zip code) (Name and Address of Agent for Service) Copy to: Julie Tedesco, Vice President and Senior Counsel Timothy W. Diggins, Esq. State Street Bank and Trust Company Ropes & Gray One Federal Street, 9th Floor One International Place Boston, Massachusetts 02110 Boston, Massachusetts 02110-2624 Registrant's telephone number, including area code: (617) 662-3968 Date of fiscal year end: December 31 Date of reporting period: December 31, 2004 ITEM 1: SHAREHOLDER REPORT STATE STREET EQUITY 500 INDEX FUND ANNUAL REPORT DECEMBER 31, 2004 STATE STREET EQUITY 500 INDEX FUND ADMINISTRATIVE SHARES GROWTH OF A $10,000 INVESTMENT (A) [LINE GRAPH] <Table> <Caption> STATE STREET EQUITY 500 INDEX FUND ADMINISTRATIVE SHARES* S&P 500 INDEX** (B) ---------------------------------- ------------------- 4/18/01 10000 10000 12/31/01 9703 9727 6/30/02 8422 8447 12/31/02 7538 7578 6/30/03 8413 8469 12/31/03 9677 9751 6/30/04 10000 10086 12/31/04 10706 10810 </Table> - -------------------------------------------------------------------------------- INVESTMENT PERFORMANCE (A) For the Fiscal Year Ended December 31, 2004 - -------------------------------------------------------------------------------- <Table> <Caption> - ----------------------------------------------------------------------------------------------------------- Total Return Total Return Average Annualized Since One Year Ended Commencement of Operations December 31, 2004 (April 18, 2001) - ----------------------------------------------------------------------------------------------------------- - ----------------------------------------------------------------------------------------------------------- State Street Equity 500 Index Fund Administrative Shares 10.63% 1.86% S&P 500(R) Index 10.88% 2.13% - ----------------------------------------------------------------------------------------------------------- </Table> (a) Total returns and performance graph information represent past performance and are not indicative of future results, which may be lower or higher than performance data quoted. Investment return and principal value of an investment will fluctuate so that an investor's share, when redeemed, may be worth more or less than its original cost. The graph and table above do not reflect the deduction of taxes that a shareholder would pay on fund distributions or the redemption of fund shares. (b) The Standard & Poor's 500 Composite Stock Price Index ("S&P 500(R) Index") is an unmanaged capitalization-weighted index of 500 widely held stocks recognized by investors to be representative of the stock market in general. 1 STATE STREET EQUITY 500 INDEX FUND EXPENSE EXAMPLE As a shareholder of the State Street Equity 500 Index Fund (the "Fund"), you incur ongoing costs, which include costs for administrative services and distribution (12b-1) fees, among others, in addition to the Fund's proportionate share of expenses of the State Street Equity 500 Index Portfolio. This example is intended to help you understand your ongoing costs (in dollars) of investing in the Fund and to compare these costs with the ongoing costs of investing in other mutual funds. The example is based on an investment of $1,000 made at the beginning of the period shown and held for the entire period from July 1, 2004 to December 31, 2004. The table below illustrates your Fund's costs in two ways: - - BASED ON ACTUAL FUND RETURN. This section helps you to estimate the actual expenses that you paid over the period. The "Ending Account Value" shown is derived from the actual return of each class of the Fund, and the third column shows the dollar amount that would have been paid by an investor who started with $1,000 in the indicated Class. You may use the information here, together with the amount you invested, to estimate the expenses that you paid over the period. To do so, simply divide your account value by $1,000 (for example, an $8,600 account value divided by $1,000 = 8.6), then multiply the result by the number given for the Class under the heading "Expenses Paid During Period". - - BASED ON HYPOTHETICAL 5% RETURN. This section is intended to help you compare your Class's costs with those of other mutual funds. It assumes that the Class had a yearly return of 5% before expenses, but that the expense ratio is unchanged. In this case -- because the return used is not the Class's actual return -- the results do not apply to your investment. The example is useful in making comparisons because the Securities and Exchange Commission requires all mutual funds to calculate expenses based on a 5% return. You can assess your Class's costs by comparing this hypothetical example with the hypothetical examples that appear in shareholder reports of other funds. 2 STATE STREET EQUITY 500 INDEX FUND EXPENSE EXAMPLE (CONTINUED) Six Months Ended December 31, 2004 <Table> <Caption> - ------------------------------------------------------------------------------------------------ BEGINNING ENDING ACCOUNT VALUE ACCOUNT VALUE EXPENSES PAID JULY 1, 2004 DECEMBER 31, 2004 DURING PERIOD* - ------------------------------------------------------------------------------------------------ BASED ON ACTUAL CLASS RETURN - ------------------------------------------------------------------------------------------------ Administrative Shares $1,000.00 $1,070.55 $1.28 - ------------------------------------------------------------------------------------------------ Service Shares $1,000.00 $1,069.90 $1.79 - ------------------------------------------------------------------------------------------------ - ------------------------------------------------------------------------------------------------ BASED ON HYPOTHETICAL (5% RETURN BEFORE EXPENSES) - ------------------------------------------------------------------------------------------------ Administrative Shares $1,000.00 $1,023.90 $1.25 - ------------------------------------------------------------------------------------------------ Service Shares $1,000.00 $1,023.41 $1.75 - ------------------------------------------------------------------------------------------------ </Table> * The calculations are based on expenses incurred in the most recent fiscal period of each Class. The Administrative Shares and Service Shares annualized average weighted expense ratios as of December 31, 2004 were 0.245% and 0.344%, respectively, which include each Class's proportionate share of the expenses of the State Street Equity 500 Index Portfolio. The dollar amounts shown as "Expenses Paid" are equal to the annualized average weighted expense ratio multiplied by the average account value over the period, multiplied by the number of days in the most recent six-month period, then divided by the number of days in the most recent 12-month period. 3 STATE STREET EQUITY 500 INDEX FUND STATEMENT OF ASSETS AND LIABILITIES DECEMBER 31, 2004 <Table> ASSETS Investment in State Street Equity 500 Index Portfolio, at value (identified cost $170,590,892) (Note 1) $213,154,555 Receivable for Fund shares sold 360,821 Other assets 13,690 ------------ 213,529,066 LIABILITIES Payable for Fund shares repurchased 434 Distribution fees payable (Note 3) 30,789 Administration fees payable (Note 3) 9,492 ------------ 40,715 ------------ NET ASSETS $213,488,351 ------------ NET ASSETS CONSIST OF: Paid-in Capital $212,023,757 Accumulated undistributed net investment income 19,496 Accumulated net realized loss (41,118,565) Net unrealized appreciation on investments 42,563,663 ------------ NET ASSETS $213,488,351 ============ ADMINISTRATIVE SHARES: NET ASSETS $200,524,313 Shares of beneficial interest outstanding 19,848,185 Offering, net asset value, and redemption price per share $ 10.10 ============ SERVICE SHARES: NET ASSETS $ 12,964,038 Shares of beneficial interest outstanding 1,283,936 Offering, net asset value, and redemption price per share $ 10.10 ============ </Table> See Notes to Financial Statements. 4 STATE STREET EQUITY 500 INDEX FUND STATEMENT OF OPERATIONS FOR THE YEAR ENDED DECEMBER 31, 2004 <Table> INCOME Dividend income allocated from Portfolio (Note 2) $ 5,443,048 Interest income allocated from Portfolio (Note 2) 7,847 Security lending income allocated from Portfolio (Note 2) 5,385 Expenses allocated from Portfolio (Note 3) (121,355) ----------- 5,334,925 ----------- EXPENSES Distribution fees (Note 3) Administrative Shares 279,916 Service Shares 207,740 Administration fees (Note 3) 134,853 ----------- 622,509 ----------- NET INVESTMENT INCOME 4,712,416 ----------- REALIZED AND UNREALIZED GAIN (LOSS) Net realized gain (loss) allocated from Portfolio on: Investments (3,359,451) Futures 681,037 ----------- (2,678,414) ----------- Change in unrealized appreciation (depreciation) allocated from Portfolio on: Investments 24,433,451 Futures (21,585) ----------- 24,411,866 ----------- Net realized and unrealized gain on investments 21,733,452 ----------- NET INCREASE IN NET ASSETS RESULTING FROM OPERATIONS $26,445,868 =========== </Table> See Notes to Financial Statements. 5 STATE STREET EQUITY 500 INDEX FUND STATEMENT OF CHANGES IN NET ASSETS <Table> <Caption> For the For the Year Ended Year Ended December 31, 2004 December 31, 2003 ----------------- ----------------- INCREASE (DECREASE) IN NET ASSETS RESULTING FROM OPERATIONS: Net investment income $ 4,712,416 $ 2,771,787 Net realized loss on investments (2,678,414) (6,469,317) Change in unrealized appreciation (depreciation) 24,411,866 52,688,564 ------------ ------------ Net increase in net assets resulting from operations 26,445,868 48,991,034 DISTRIBUTIONS TO SHAREHOLDERS FROM: Net investment income Administrative Shares (4,403,652) (1,994,382) Service Shares (264,436) (761,272) ------------ ------------ Total Distributions (4,668,088) (2,755,654) ------------ ------------ NET INCREASE FROM CAPITAL SHARE TRANSACTIONS ADMINISTRATIVE SHARES Shares sold 17,186,542 17,561,384 Reinvestment of distributions 4,403,652 1,994,382 Shares redeemed (17,967,882) (11,282,817) ------------ ------------ Net increase from capital share transactions 3,622,312 8,272,949 ------------ ------------ SERVICE SHARES* Shares sold 23,823,985 81,896,523 Reinvestment of distributions 264,436 761,272 Shares redeemed (29,324,726) (7,500,597) Redemptions in-kind (72,956,408) -- ------------ ------------ Net increase (decrease) from capital share transactions (78,192,713) 75,157,198 ------------ ------------ Net increase (decrease) in net assets (52,792,621) 129,665,527 NET ASSETS, BEGINNING OF YEAR 266,280,972 136,615,445 ------------ ------------ NET ASSETS, END OF YEAR $213,488,351 $266,280,972 ============ ============ Accumulated undistributed net investment income $ 19,496 $ 6,263 ============ ============ </Table> - --------------- * Service Shares commenced operations on March 10, 2003. See Notes to Financial Statements. 6 STATE STREET EQUITY 500 INDEX FUND STATEMENT OF CHANGES IN NET ASSETS (CONTINUED) <Table> <Caption> For the For the Year Ended Year Ended December 31, 2004 December 31, 2003 ----------------- ----------------- CHANGES IN SHARES: ADMINISTRATIVE SHARES Shares sold 1,796,467 2,194,164 Reinvestment of distributions 435,142 227,163 Shares redeemed (1,879,949) (1,485,709) ---------- ---------- Net increase in shares 351,660 935,618 ========== ========== SERVICE SHARES* Shares sold 2,502,761 9,803,007 Reinvestment of distributions 26,157 81,769 Shares redeemed (3,036,779) (857,921) Shares redeemed in-kind (7,235,058) -- ---------- ---------- Net increase (decrease) in shares (7,742,919) 9,026,855 ========== ========== </Table> - --------------- * Service Shares commenced operations on March 10, 2003. See Notes to Financial Statements. 7 STATE STREET EQUITY 500 INDEX FUND FINANCIAL HIGHLIGHTS FOR AN ADMINISTRATIVE SHARE OF BENEFICIAL INTEREST OUTSTANDING THROUGHOUT THE PERIOD <Table> <Caption> Year Year Year Period Ended Ended Ended Ended 12/31/04 12/31/03 12/31/02 12/31/01(a) -------- -------- -------- ----------- PER SHARE OPERATING PERFORMANCE(B): NET ASSET VALUE, BEGINNING OF PERIOD $ 9.34 $ 7.36 $ 9.62 $ 10.00 -------- -------- -------- -------- INVESTMENT OPERATIONS: Net investment income 0.17* 0.13* 0.11 0.08 Net realized and unrealized gain (loss) on investments 0.82 1.95 (2.26) (0.38) -------- -------- -------- -------- Total from investment operations 0.99 2.08 (2.15) (0.30) -------- -------- -------- -------- LESS DISTRIBUTIONS FROM: Net investment income (0.23) (0.10) (0.11) (0.08) -------- -------- -------- -------- Net increase (decrease) in net assets 0.76 1.98 (2.26) (0.38) -------- -------- -------- -------- NET ASSET VALUE, END OF PERIOD $ 10.10 $ 9.34 $ 7.36 $ 9.62 ======== ======== ======== ======== TOTAL RETURN(C) 10.63% 28.37% (22.31)% (2.97)% ======== ======== ======== ======== RATIOS AND SUPPLEMENTARY DATA: Net Assets, End of Period (000s) $200,524 $182,037 $136,615 $171,774 Ratios to average net assets: Operating expenses 0.245% 0.245% 0.245% 0.245%(d) Net investment income 1.78% 1.54% 1.37% 1.18%(d) Portfolio turnover rate 9% 12% 13% 14% </Table> - --------------- (a) Administrative Shares commenced operations on April 18, 2001. (b) The per share amounts and percentages reflect income and expenses assuming inclusion of the Fund's proportionate share of the income and expenses of the State Street Equity 500 Index Portfolio. (c) Total return is calculated assuming a purchase of shares at net asset value on the first day and a sale at net asset value on the last day of each period reported. Distributions are assumed, for the purpose of this calculation, to be reinvested at net asset value per share on the respective payment dates. Total return for periods of less than one year is not annualized. Results represent past performance and are not indicative of future results. (d) Annualized. * Net investment income per share calculated using the average shares method. See Notes to Financial Statements. 8 STATE STREET EQUITY 500 INDEX FUND FINANCIAL HIGHLIGHTS FOR A SERVICE SHARE OF BENEFICIAL INTEREST OUTSTANDING THROUGHOUT THE PERIOD <Table> <Caption> Year Ended Period Ended 12/31/04 12/31/03(a) ---------- ------------ PER SHARE OPERATING PERFORMANCE(B): NET ASSET VALUE, BEGINNING OF PERIOD $ 9.33 $ 6.94 ------- ------- INVESTMENT OPERATIONS: Net investment income 0.16* 0.10* Net realized and unrealized gain on investments 0.83 2.38 ------- ------- Total from investment operations 0.99 2.48 ------- ------- LESS DISTRIBUTIONS FROM: Net investment income (0.22) (0.09) ------- ------- Net increase in net assets 0.77 2.39 ------- ------- NET ASSET VALUE, END OF PERIOD $ 10.10 $ 9.33 ======= ======= TOTAL RETURN(C) 10.51% 35.71% ======= ======= RATIOS AND SUPPLEMENTARY DATA: Net Assets, End of Period (000s) $12,964 $84,244 Ratios to average net assets: Operating expenses 0.345% 0.345%(d) Net investment income 1.67% 1.45%(d) Portfolio turnover rate 9% 12% </Table> - --------------- (a) Service Shares commenced operations on March 10, 2003. (b) The per share amounts and percentages reflect income and expenses assuming inclusion of the Fund's proportionate share of the income and expenses of the State Street Equity 500 Index Portfolio. (c) Total return is calculated assuming a purchase of shares at net asset value on the first day and a sale at net asset value on the last day of each period reported. Distributions are assumed, for the purpose of this calculation, to be reinvested at net asset value per share on the respective payment dates. Total return for periods of less than one year is not annualized. Results represent past performance and are not indicative of future results. (d) Annualized. * Net investment income per share calculated using the average shares method. See Notes to Financial Statements. 9 STATE STREET EQUITY 500 INDEX FUND NOTES TO FINANCIAL STATEMENTS DECEMBER 31, 2004 1. ORGANIZATION The State Street Institutional Investment Trust (the "Trust") is a registered and diversified open-end investment company, as defined in the Investment Company Act of 1940, as amended (the "1940 Act"), that was organized as a business trust under the laws of the Commonwealth of Massachusetts on February 16, 2000. The Trust consists of the following diversified series: the State Street Equity 500 Index Fund, the State Street Equity 400 Index Fund, the State Street Equity 2000 Index Fund, the State Street MSCI(R) EAFE(R) Index Fund, the State Street Aggregate Bond Index Fund, the State Street Institutional Liquid Reserves Fund and the State Street U.S. Government Money Market Fund, each of which is a separate diversified series of the Trust. Information presented in these financial statements pertains only to the State Street Equity 500 Index Fund (the "Fund"). Pursuant to the Trust's Declaration of Trust, the Trustees are authorized to issue an unlimited number of shares, with no par value, of the Fund. The Fund commenced operations on April 18, 2001. As of December 31, 2004, the Fund and the State Street Institutional Liquid Reserves Fund were the only series of the Trust that had commenced operations. The Fund offers both Administrative and Service shares (formerly Class A and B shares, respectively). Administrative Shares commenced operations on April 18, 2001 and Service Shares commenced operations on March 10, 2003. The Fund invests all of its investable assets in interests in the State Street Equity 500 Index Portfolio (the "Portfolio"). The investment objective and policies of the Portfolio are the same as the Fund. The value of the Fund's investment in the Portfolio reflects the Fund's proportionate interest in the net assets of the Portfolio (7.702% at December 31, 2004). The performance of the Fund is directly affected by the performance of the Portfolio. The financial statements of the Portfolio, including the portfolio of investments, are included elsewhere in this report and should be read in conjunction with the Fund's financial statements. 2. SIGNIFICANT ACCOUNTING POLICIES The following is a summary of the significant accounting policies consistently followed by the Fund in preparation of its financial statements. SECURITY VALUATION: The Fund records its investment in the Portfolio at value. The valuation policies of the Portfolio are discussed in Note 2 of the Portfolio's Notes to Financial Statements, which are included elsewhere within this report. SECURITY TRANSACTIONS, INVESTMENT INCOME AND EXPENSES: Securities transactions are recorded on a trade date basis. Net investment income consists of the Fund's pro-rata share of the net investment income of the Portfolio, less all expenses of the Fund. Realized and unrealized gains and losses from security transactions consist of the Fund's pro-rata share of the Portfolio's realized and unrealized gains and 10 STATE STREET EQUITY 500 INDEX FUND NOTES TO FINANCIAL STATEMENTS (CONTINUED) DECEMBER 31, 2004 losses. Realized gains and losses from security transactions are recorded on the basis of identified cost. Class specific distribution fees are borne by that class. Income, non-class specific expenses, and realized and unrealized gains and losses are allocated to the respective classes daily on the basis of relative net assets. DIVIDENDS AND DISTRIBUTIONS: Dividends, if any, are declared and paid, at least, annually. Net realized capital gains, if any, are distributed annually, unless additional distributions are required for compliance with applicable tax regulations. The tax character of distributions paid to shareholders during the years ended December 31, 2004 and 2003 were as follows: <Table> <Caption> 2004 2003 ---------- ---------- Ordinary income $4,668,088 $2,755,654 </Table> At December 31, 2004 the components of distributable earnings on a tax basis were as follows: <Table> Undistributed ordinary income $ 10,646 Capital loss carryover (26,378,156) Unrealized appreciation 27,832,104 ------------ Total $ 1,464,594 ============ </Table> As of December 31, 2004, there were no significant differences between book basis and tax basis components of net assets, other than differences attributable to wash sale loss deferrals. FEDERAL INCOME TAXES: The Fund intends to continue to qualify for and elect treatment as a regulated investment company under Subchapter M of the Internal Revenue Code of 1986, as amended. By so qualifying and electing, the Fund will not be subject to federal income taxes to the extent it distributes its taxable income, including any net realized capital gains, for each fiscal year. In addition, by distributing during each calendar year substantially all of its net taxable income and capital gains, if any, the Fund will not be subject to federal excise tax. Income and capital gain distributions are determined in accordance with income tax regulations, which may differ from generally accepted accounting principles. These book tax differences are primarily due to wash sales loss deferrals. At December 31, 2004, the Fund had capital loss carry forwards in the amount of $26,378,156, of which $18,165,550, $7,776,419, $78,263, and $357,924 may be utilized to offset future net realized capital gains until expiration dates of December 31, 2009, December 31, 2010, December 31, 2011, and December 31, 2012, respectively. No post-October losses were deferred in the current year. 11 STATE STREET EQUITY 500 INDEX FUND NOTES TO FINANCIAL STATEMENTS (CONTINUED) DECEMBER 31, 2004 At December 31, 2004, the cost of investments computed on a federal income tax basis was $185,322,451, resulting in $27,832,104 of unrealized appreciation. The differences between book and tax cost amounts are primarily due to wash sales loss deferrals. USE OF ESTIMATES: The Fund's financial statements are prepared in accordance with U.S. generally accepted accounting principles that require the use of management estimates. Actual results could differ from those estimates. 3. RELATED PARTY FEES AND TRANSACTIONS The Portfolio pays a unitary fee of 0.045% of its average daily net assets to State Street Bank & Trust Company ("State Street") for SSgA Funds Management, Inc.'s ("SSgA FM"), a subsidiary of State Street Corporation and an affiliate of State Street, services as the investment adviser and for State Street's services as administrator, custodian and transfer agent (and for assuming ordinary operating expenses of the Portfolio, including ordinary legal and audit expenses). For the year ended December 31, 2004, the Fund's pro-rata share of these expenses amounted to $121,355. State Street is also the administrator for the Fund, the custodian for the Fund's assets, and serves as the transfer agent to the Fund. As compensation for its services as administrator, custodian and transfer agent (and for assuming ordinary operating expenses of the Fund, including ordinary legal and audit expenses), State Street receives a fee at an annual rate of 0.05% of average daily net assets of the Fund. Under this arrangement, the Fund's expenses for the year ended December 31, 2004, amounted to $134,853. ALPS Distributors, Inc. serves as Distributor (the "Distributor") pursuant to a Distribution Agreement with the Trust. The Trust has adopted a plan of distribution pursuant to Rule 12b-1 under the 1940 Act (the "Rule 12b-1 Plan"). Under the Rule 12b-1 Plan, the Fund may compensate financial intermediaries in connection with the distribution of Administrative and Service shares and for services provided to the Fund's shareholders. The Rule 12b-1 Plan calls for payments at an annual rate of up to 0.25% of average daily net assets for Service shares of the Fund, and an annual rate of up to 0.15% of average daily net assets for Administrative shares of the Fund. For the year ended December 31, 2004, the Fund accrued payments to financial intermediaries pursuant to the Rule 12b-1 plan in the amount of $487,656. 4. INDEMNIFICATIONS Like many other companies, the Trust's organizational documents provide that its officers and trustees are indemnified against certain liabilities arising out of the performance of their duties to the Trust. In addition, both in some of its principal service contracts and in the normal course of its business, the Trust enters into contracts that provide indemnifications to other parties for certain types of losses or 12 STATE STREET EQUITY 500 INDEX FUND NOTES TO FINANCIAL STATEMENTS (CONTINUED) DECEMBER 31, 2004 liabilities. The Trust's maximum exposure under these arrangements in unknown as this could involve future claims against the Trust. 5. TAX INFORMATION -- (UNAUDITED) For federal income tax purposes, the following information is furnished with respect to the Fund's distributions for its fiscal year ended December 31, 2004: State Street Equity 500 Index Fund had 100% of 2004 dividends qualify for the corporate dividends received deduction. 100% of these distributions have also met the requirements needed to be considered qualified dividends under the Jobs and Growth Tax Relief Reconciliation Act of 2003. 13 STATE STREET EQUITY 500 INDEX FUND NOTES TO FINANCIAL STATEMENTS (CONTINUED) DECEMBER 31, 2004 GENERAL INFORMATION (UNAUDITED) PROXY VOTING POLICIES AND PROCEDURES AND RECORD The Trust has adopted proxy voting procedures relating to portfolio securities held by the Portfolio. A description of the policies and procedures is available without charge, upon request, by (i) calling (877) 521-4083 or (ii) on the website of the Securities Exchange Commission (the "SEC") at www.sec.gov. Information on how the Portfolio 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 (877) 521-4083 or (ii) on the SEC's website at www.sec.gov. QUARTERLY PORTFOLIO SCHEDULE The Trust files a complete schedule of portfolio holdings with the SEC for the first and third quarters of its fiscal year (as of March and September of each year) on Form N-Q. The Trust's Form N-Q is available on the SEC's website at www.sec.gov. The Trust's Form N-Q may be reviewed and copied at the SEC's Public Reference Room in Washington, D.C. and information on the operation of the Public Reference Room may be obtained by calling 1-800-SEC-0330. The most recent Form N-Q is available without charge, upon request, by calling (877) 521-4083. 14 STATE STREET EQUITY 500 INDEX FUND REPORT OF ERNST & YOUNG LLP, INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM To the Board of Trustees of State Street Institutional Investment Trust and Shareholders of State Street Equity 500 Index Fund: We have audited the accompanying statement of assets and liabilities of the State Street Equity 500 Index Fund (one of the funds constituting State Street Institutional Investment Trust)(the Fund) as of December 31, 2004, and the related statement of operations for the year then ended, and the statements of changes in net assets for each of the two years in the period then ended and the financial highlights for each of the periods indicated therein. These financial statements and financial highlights are the responsibility of the Fund's management. Our responsibility is to express an opinion on these financial statements and financial highlights based on our audits. We conducted our audits in accordance with the standards of the Public Company Accounting Oversight Board (United States). Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements and financial highlights are free of material misstatement. An audit includes consideration of internal control over financial reporting as a basis for designing audit procedures that are appropriate in the circumstances, but not for the purpose of expressing an opinion on the effectiveness of the Fund's internal control over financial reporting. Accordingly, we express no such opinion. An audit also includes examining, on a test basis, evidence supporting the amounts and disclosures in the financial statements and financial highlights, assessing the accounting principles used and significant estimates made by management, and evaluating the overall financial statement presentation. Our procedures included confirmation of securities owned as of December 31, 2004, by correspondence with the custodian. We believe that our audits provide a reasonable basis for our opinion. In our opinion, the financial statements and financial highlights referred to above present fairly, in all material respects, the financial position of the State Street Equity 500 Index Fund of the State Street Institutional Investment Trust at December 31, 2004, the results of its operations for the year then ended, the changes in its net assets for each of the two years in the period then ended, and the financial highlights for each of the periods indicated therein, in conformity with U.S. generally accepted accounting principles. /s/ Ernst & Young LLP Boston, Massachusetts February 11, 2005 15 STATE STREET EQUITY 500 INDEX FUND STATE STREET INSTITUTIONAL INVESTMENT TRUST (UNAUDITED) <Table> <Caption> ----------------------------------------------------------------------------------------------------------------------------------- NUMBER OF FUNDS IN OTHER POSITION(S) TERM OF OFFICE FUND COMPLEX DIRECTORSHIPS NAME, ADDRESS AND HELD WITH AND LENGTH OF PRINCIPAL OCCUPATION OVERSEEN BY HELD BY DATE OF BIRTH ("DOB") TRUST TIME SERVED DURING PAST FIVE YEARS TRUSTEE TRUSTEE ----------------------------------------------------------------------------------------------------------------------------------- INDEPENDENT TRUSTEES: ----------------------------------------------------------------------------------------------------------------------------------- Michael F. Holland Trustee and Term: Indefinite Chairman, Holland & Company L.L.C. 14 Trustee, State Holland & Company, LLC Chairman of (investment adviser) (1995 -- present). Street 375 Park Avenue the Board Elected: 7/99 Institutional New York, NY 10152 Investment DOB: 07/08/44 Trust; Director of the Holland Series Fund, Inc.; and Director, The China Fund, Inc. ----------------------------------------------------------------------------------------------------------------------------------- William L. Boyan Trustee Term: Indefinite Trustee of Old Mutual South Africa Master 14 Trustee, State State Street Master Trust (investments) (1997 -- present); Street Funds Elected: 7/99 Chairman emeritus, Children's Hospital Institutional P.O. Box 5049 (1984 -- present); Director, Boston Plan For Investment Boston, MA 02206 Excellence (non-profit) (1994 -- present); Trust; and DOB: 01/20/37 President and Chief Operations Officer, John Trustee, Old Hancock Mutual Life Insurance Company Mutual South (1959 -- 1999). Mr. Boyan retired in 1999. Africa Master Trust ----------------------------------------------------------------------------------------------------------------------------------- Rina K. Spence Trustee Term: Indefinite President of SpenceCare International LLC 14 Trustee, State 7 Acacia Street (1998 -- present); Member of the Advisory Street Cambridge, MA 02138 Elected: 7/99 Board, Ingenium Corp., (technology company) Institutional DOB: 10/24/48 (2001 -- present); Chief Executive Officer, Investment IEmily.com, (internet company) (2000-2001); Trust; Director Trustee Eastern Enterprise (utilities) of Berkshire (1988 -- 2000). Life Insurance Company of America; and Director, IEmily.com ----------------------------------------------------------------------------------------------------------------------------------- Douglas T. Williams Trustee Term: Indefinite Executive Vice President of Chase Manhattan 14 Trustee, State State Street Master Bank, (1987 -- 1999). Mr. Williams retired Street Funds Elected: 7/99 in 1999. Institutional P.O. Box 5049 Investment Boston, MA 02206 Trust DOB: 12/23/40 ----------------------------------------------------------------------------------------------------------------------------------- </Table> 16 STATE STREET EQUITY 500 INDEX FUND STATE STREET INSTITUTIONAL INVESTMENT TRUST (UNAUDITED) <Table> <Caption> ---------------------------------------------------------------------------------------------------------------------------------- NUMBER OF FUNDS IN OTHER POSITION(S) TERM OF OFFICE FUND COMPLEX DIRECTORSHIPS NAME, ADDRESS AND HELD WITH AND LENGTH OF PRINCIPAL OCCUPATION OVERSEEN BY HELD BY DATE OF BIRTH ("DOB") TRUST TIME SERVED DURING PAST FIVE YEARS TRUSTEE TRUSTEE ---------------------------------------------------------------------------------------------------------------------------------- OFFICERS: ---------------------------------------------------------------------------------------------------------------------------------- Donald A. Gignac President Term: Senior Vice President of State Street Bank -- -- State Street Bank and Indefinite and Trust Company (2002 -- present); Vice Trust Company President of State Street Bank and Trust 2 Avenue de Lafayette Elected: 8/03 Company (1993 to 2002). Boston, MA 02111 DOB: 06/14/65 ---------------------------------------------------------------------------------------------------------------------------------- Karen Gillogly Treasurer Term: Vice President of State Street Bank and -- -- State Street Bank and Indefinite Trust Company (1999 -- present); Audit Trust Company Senior Manager, Ernst & Young LLP One Federal Street Elected: 9/03 (1998 -- 1999). Boston, MA 02110 DOB: 09/03/66 ---------------------------------------------------------------------------------------------------------------------------------- Julie A. Tedesco Secretary Term: Vice President and Counsel of State Street -- -- State Street Bank and Indefinite Bank and Trust Company (2000 -- present); Trust Company Counsel of First Data Investor Services One Federal Street Elected: 5/00 Group, Inc., (1994 -- 2000). Boston, MA 02110 DOB: 09/03/57 ---------------------------------------------------------------------------------------------------------------------------------- Peter A. Ambrosini Chief Term: Unlimited Senior Principal and Chief Compliance and -- -- SSgA Funds Compliance Risk Management Officer, SSgA Funds Management, Inc. Officer Elected: 5/04 Management, Inc. and State Street Global State Street Financial Advisors (2001 -- present); Managing Center Director, PricewaterhouseCoopers LLP One Lincoln Street (1986 -- 2001). Boston, MA 02111 DOB: 12/17/43 ---------------------------------------------------------------------------------------------------------------------------------- </Table> The Statement of Additional Information includes additional information about the Trust's Trustees and is available, without charge, upon request, by calling (toll free) 877-521-4083. 17 TRUSTEES Michael F. Holland William L. Boyan Rina K. Spence Douglas T. Williams INVESTMENT ADVISER SSgA Funds Management, Inc. State Street Financial Center One Lincoln Street Boston, MA 02111 ADMINISTRATOR, CUSTODIAN AND TRANSFER AGENT State Street Bank and Trust Company 225 Franklin Street Boston, MA 02110 INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM Ernst & Young LLP 200 Clarendon Street Boston, MA 02116 LEGAL COUNSEL Ropes & Gray LLP One International Place Boston, MA 02109 This report is for shareholder information. This is not a prospectus intended for use in the purchase or sale of shares of beneficial interest. STATE STREET EQUITY 500 INDEX FUND State Street Bank and Trust Company P.O. Box 5049 Boston, MA 02206 18 STATE STREET EQUITY 500 INDEX PORTFOLIO ANNUAL REPORT DECEMBER 31, 2004 STATE STREET EQUITY 500 INDEX PORTFOLIO MANAGEMENT DISCUSSION OF FUND PERFORMANCE AND ANALYSIS THE PORTFOLIO The State Street Equity 500 Index Portfolio's (the "Portfolio") investment objective is to replicate as closely as possible, before expenses, the performance of the Standard & Poor's 500 Composite Stock Price Index (the "S&P 500(R) Index"). The Portfolio uses a passive management strategy designed to track the performance of the S&P 500(R) Index. The S&P 500(R) Index is a well-known unmanaged stock market index that includes common stocks of 500 companies from several industrial sectors representing a significant portion of the market value of all stocks publicly traded in the United States. For the year ended December 31, 2004, the Portfolio gained 10.86%. For the same period, the S&P 500(R) Index gained 10.88%. THE MARKET The S&P 500(R) Index finished strong for the year, ending 2004 with a solid 10.88% gain. After a rocky third quarter, equities dramatically picked up in October when a number of solid corporate profit reports led investors to maintain positions in the face of a renewed surge in crude oil. In November, the Index returned 4.1%. When the U.S. presidential election was decided quickly and without controversy, the bulls mounted a fresh stampede to the upside. The rally continued into December with additional gains of 3.4%. This was extremely good news after experiencing small positive returns in the first half of the year and a difficult market during most of the third quarter. The equity market sank in July and August, weighted by second-quarter earnings releases that failed to offer enough enthusiasm regarding the second half of the year, a weak July jobs report and a sharp rise in crude oil prices. All ten economic sectors represented in the S&P 500(R) Index posted positive results for the year. Energy and Utilities had the highest total returns, while Financials, Industrials and Energy were the greatest contributors to the Index's return. Financials, Industrials, and Energy were bolstered by the respective strengths of Bank of America Corp., General Electric Co. and ExxonMobil Corp. During the second quarter, Bank of America Corp. benefited from its expanded customer base resulting from its merger with FleetBoston and new focus on its higher-margin consumer loan department. General Electric Corp. had a share increase from an acquisition in April, and also moved from being solely a growth stock in the Russell Indexes to mostly value, leading to increased demand from indexers. Not surprisingly, Energy was a top performer this year due to surging oil prices, which fueled investor optimism and brought in a total return of 31.24% for the Index. Health Care was the weakest performing sector for the year as threats of competition from drug imports and concerns about declining new-product pipelines punished some of the larger companies within this segment. In late September, Merck & Co. Inc. recalled its multi-billion dollar arthritis drug Vioxx after research concluded that the drug doubled the risk of heart attack or stroke. Pfizer, Inc. also trailed the overall sector after the company lowered its revenue expectations for the quarter. Additionally, risk surrounding the presidential election weighed heavily on drug stocks. Information Technology was not far behind Health Care, having been the worst-performing sector of the market during the third quarter 1 STATE STREET EQUITY 500 INDEX PORTFOLIO MANAGEMENT DISCUSSION OF FUND PERFORMANCE AND ANALYSIS (CONTINUED) of 2004, as measured by the S&P 500(R) Index. In general, many of the more speculative companies in this sector fell due to lackluster domestic spending on technology. The top contributors to the Index's return for the 12 month period ending December 31, 2004 were ExxonMobil Corp, General Electric Co. and Johnson & Johnson, while Pfizer, Inc., Intel Corp. and Cisco Systems, Inc. were the largest detractors. The top three performing stocks in the Index for the year 2004 were Autodesk Inc., Apple Computer Inc., and TXU Corp. The bottom three performing stocks in the Index for the year 2004 were Winn-Dixie Stores, CIENA Corp. and PMC-Sierra Inc. 2 STATE STREET EQUITY 500 INDEX PORTFOLIO PORTFOLIO STATISTICS (UNAUDITED) <Table> <Caption> PORTFOLIO COMPOSITION* DECEMBER 31, 2004 - -------------------------------------------------------------------------------- Common Stocks 97.5% - -------------------------------------------------------------------------------- Money Market Funds 5.7 - -------------------------------------------------------------------------------- U.S. Government Securities 0.2 - -------------------------------------------------------------------------------- Liabilities less cash and other assets (3.4) - -------------------------------------------------------------------------------- Total 100.0% - -------------------------------------------------------------------------------- </Table> <Table> <Caption> TOP FIVE SECTORS (EXCLUDING SHORT-TERM INVESTMENTS)* DECEMBER 31, 2004 - -------------------------------------------------------------------------------- Financials 20.1% - -------------------------------------------------------------------------------- Information Technology 16.2 - -------------------------------------------------------------------------------- Health Care 12.2 - -------------------------------------------------------------------------------- Industrials 11.4 - -------------------------------------------------------------------------------- Consumer Discretionary 11.3 - -------------------------------------------------------------------------------- Total 71.2% - -------------------------------------------------------------------------------- </Table> * As a percentage of net assets as of the date indicated. The Portfolio's composition will vary over time. 3 STATE STREET EQUITY 500 INDEX PORTFOLIO GROWTH OF A $10,000 INVESTMENT (A) [LINE GRAPH] <Table> <Caption> STATE STREET EQUITY 500 INDEX PORTFOLIO * S&P 500 INDEX ** (B) ----------------------------- -------------------- 3/1/00 10000 10000 6/30/00 10683 10608 12/31/00 9759 9683 6/30/01 9090 9035 12/31/01 8594 8532 6/30/02 7460 7409 12/31/02 6689 6646 6/30/03 7475 7427 12/31/03 8604 8552 6/30/04 8901 8846 12/31/04 9538 9482 </Table> - -------------------------------------------------------------------------------- INVESTMENT PERFORMANCE (A) For the Fiscal Year Ended December 31, 2004 - -------------------------------------------------------------------------------- <Table> <Caption> - ----------------------------------------------------------------------------------------------------------- Total Return Total Return Average Annualized Since One Year Ended Commencement of Operations December 31, 2004 (March 1, 2000) - ----------------------------------------------------------------------------------------------------------- - ----------------------------------------------------------------------------------------------------------- State Street Equity 500 Index Portfolio 10.86% -0.97% S&P 500 Index(b) 10.88% -1.09% - ----------------------------------------------------------------------------------------------------------- </Table> (a) Total returns and performance graph information represent past performance and are not indicative of future results, which may be lower or higher than performance data quoted. Investment return and principal value of an investment will fluctuate so that a partner's share, when redeemed, may be worth more or less than its original cost. The graph and table above do not reflect the deduction of taxes. (b) The Standard & Poor's 500 Composite Stock Price Index is an unmanaged capitalization-weighted index of 500 widely held stocks recognized by investors to be representative of the stock market in general. 4 STATE STREET EQUITY 500 INDEX PORTFOLIO EXPENSE EXAMPLE As a shareholder of the State Street Equity 500 Index Portfolio (the "Portfolio"), you incur ongoing costs, which include costs for portfolio management and administrative services, among others. This example is intended to help you understand your ongoing costs (in dollars) of investing in the Portfolio and to compare these costs with the ongoing costs of investing in other mutual funds. The example is based on an investment of $1,000 made at the beginning of the period shown and held for the entire period from July 1, 2004 to December 31, 2004. The table below illustrates your Portfolio's costs in two ways: - BASED ON ACTUAL FUND RETURN. This section helps you to estimate the actual expenses that you paid over the period. The "Ending Account Value" shown is derived from the actual return of the Portfolio, and the third column shows the dollar amount that would have been paid by an investor who started with $1,000 in the Portfolio. You may use the information here, together with the amount you invested, to estimate the expenses that you paid over the period. To do so, simply divide your account value by $1,000 (for example, an $8,600 account value divided by $1,000 = 8.6), then multiply the result by the number given for the Portfolio under the heading "Expenses Paid During Period". - BASED ON HYPOTHETICAL 5% RETURN. This section is intended to help you compare your Portfolio's costs with those of other mutual funds. It assumes that the Portfolio had a yearly return of 5% before expenses, but that the expense ratio is unchanged. In this case- because the return used is not the Portfolio's actual return- the results do not apply to your investment. The example is useful in making comparisons because the Securities and Exchange Commission requires all mutual funds to calculate expenses based on a 5% return. You can assess your Portfolio's costs by comparing this hypothetical example with the hypothetical examples that appear in shareholder reports of other funds. Six Months Ended December 31, 2004 <Table> <Caption> - ------------------------------------------------------------------------------------------------- BEGINNING ENDING ACCOUNT VALUE ACCOUNT VALUE EXPENSES PAID JULY 1, 2004 DECEMBER 31, 2004 DURING PERIOD* - ------------------------------------------------------------------------------------------------- BASED ON ACTUAL PORTFOLIO RETURN $1,000.00 $1,071.57 $0.23 - ------------------------------------------------------------------------------------------------- - ------------------------------------------------------------------------------------------------- BASED ON HYPOTHETICAL (5% RETURN BEFORE EXPENSES) $1,000.00 $1,024.91 $0.23 - ------------------------------------------------------------------------------------------------- </Table> * The calculations are based on expenses incurred in the most recent fiscal period of the Portfolio. The annualized average weighted expense ratio as of December 31, 2004 was 0.045% . The dollar amounts shown as "Expenses Paid" are equal to the annualized average weighted expense ratio multiplied by the average account value over the period, multiplied by the number of days in the most recent six-month period, then divided by the number of days in the most recent 12-month period. 5 STATE STREET EQUITY 500 INDEX PORTFOLIO PORTFOLIO OF INVESTMENTS DECEMBER 31, 2004 <Table> <Caption> MARKET VALUE SHARES (000) ---------- ------------ COMMON STOCKS -- 97.5% CONSUMER DISCRETIONARY -- 11.3% AutoNation, Inc.(a)(f) 61,900 $ 1,189 AutoZone, Inc.(a) 19,587 1,788 Bed Bath & Beyond, Inc.(a) 71,414 2,844 Best Buy Co., Inc. 76,621 4,553 Big Lots, Inc.(a) 28,738 349 Black & Decker Corp. 18,933 1,672 Brunswick Corp. 22,029 1,090 Carnival Corp. 152,619 8,795 Centex Corp. 29,076 1,732 Circuit City Stores, Inc. 48,139 753 Clear Channel Communications, Inc. 138,965 4,654 Coach, Inc.(a) 44,400 2,504 Comcast Corp.(a)(f) 533,067 17,740 Cooper Tire & Rubber Co. 18,137 391 Dana Corp. 36,349 630 Darden Restaurants, Inc. 37,210 1,032 Delphi Corp.(f) 131,567 1,187 Dillard's, Inc. Class A(f) 19,453 523 Dollar General Corp. 77,315 1,606 Dow Jones & Co., Inc.(f) 19,326 832 Eastman Kodak Co.(f) 67,537 2,178 eBay, Inc.(a) 159,160 18,507 Family Dollar Stores, Inc. 39,668 1,239 Federated Department Stores, Inc. 42,276 2,443 Ford Motor Co.(f) 442,155 6,473 Fortune Brands, Inc. 33,966 2,622 Gannett Co., Inc. 62,738 5,126 Gap, Inc. 212,030 4,478 General Motors Corp.(f) 136,773 5,479 Genuine Parts Co. 41,293 1,819 Goodyear Tire & Rubber Co.(a)(f) 43,242 634 Harley-Davidson, Inc. 69,538 4,224 Harrah's Entertainment, Inc.(f) 26,433 1,768 Hasbro, Inc. 42,787 829 Hilton Hotels Corp. 91,643 2,084 Home Depot, Inc. 526,857 22,518 International Game Technology 81,152 2,790 Interpublic Group of Cos., Inc.(a)(f) 99,577 1,334 </Table> <Table> <Caption> MARKET VALUE SHARES (000) ---------- ------------ JC Penney & Co., Inc. 67,088 $ 2,777 Johnson Controls, Inc. 44,796 2,842 Jones Apparel Group, Inc. 29,379 1,074 KB HOME(f) 10,931 1,141 Knight-Ridder, Inc. 18,291 1,224 Kohl's Corp.(a) 83,510 4,106 Leggett & Platt, Inc.(f) 45,054 1,281 Limited Brands 100,169 2,306 Liz Claiborne, Inc. 25,341 1,070 Lowe's Cos., Inc. 185,423 10,679 Marriot International, Inc. Class A 53,439 3,366 Mattel, Inc. 97,545 1,901 May Department Stores Co. 68,567 2,016 Maytag Corp.(f) 19,329 408 McDonald's Corp. 299,153 9,591 McGraw-Hill, Inc. 44,813 4,102 Meredith Corp. 11,847 642 New York Times Co. Class A 34,745 1,418 Newell Rubbermaid, Inc.(f) 65,221 1,578 NIKE, Inc. Class B 62,213 5,642 Nordstrom, Inc. 32,538 1,521 Office Depot, Inc.(a) 74,470 1,293 OfficeMax, Inc. 20,919 656 Omnicom Group, Inc. 44,117 3,720 Pulte Homes, Inc. 29,936 1,910 Radioshack Corp. 37,253 1,225 Reebok International, Ltd.(f) 14,471 637 Reynolds American, Inc.(f) 34,840 2,738 Sears Roebuck & Co.(f) 49,954 2,549 Sherwin-Williams Co. 33,570 1,498 Snap-On, Inc.(f) 14,348 493 Stanley Works 19,732 967 Staples, Inc. 117,150 3,949 Starbucks Corp.(a) 96,826 6,038 Starwood Hotels & Resorts Worldwide, Inc. Class B 49,112 2,868 Target Corp. 214,857 11,158 Tiffany & Co. 34,368 1,099 Time Warner, Inc.(a) 1,098,947 21,364 TJX Cos., Inc. 115,113 2,893 Toys "R" Us, Inc.(a) 50,369 1,031 Tribune Co. 74,955 3,159 </Table> 6 STATE STREET EQUITY 500 INDEX PORTFOLIO PORTFOLIO OF INVESTMENTS -- (CONTINUED) DECEMBER 31, 2004 <Table> <Caption> MARKET VALUE SHARES (000) ---------- ------------ CONSUMER DISCRETIONARY -- (CONTINUED) Univision Communications, Inc. Class A(a) 76,018 $ 2,225 V.F. Corp.(f) 25,988 1,439 Viacom, Inc. Class B 409,697 14,909 Visteon Corp.(f) 30,453 298 Walt Disney Co. 488,373 13,577 Wendy's International, Inc. 26,767 1,051 Whirlpool Corp. 15,666 1,084 Yum! Brands, Inc. 71,522 3,374 ------------ 312,296 ------------ CONSUMER STAPLES -- 10.1% Adolph Coors Co. Class B(f) 8,944 677 Alberto Culver Co. Class B(f) 21,658 1,052 Albertson's, Inc.(f) 87,513 2,090 Altria Group, Inc. 492,064 30,065 Anheuser-Busch Cos., Inc. 190,267 9,652 Archer-Daniels-Midland Co. 159,567 3,560 Avon Products, Inc. 114,848 4,445 Brown-Forman Corp. Class B 28,582 1,391 Campbell Soup Co.(f) 96,683 2,890 Clorox Co. 36,010 2,122 Coca-Cola Co. 580,335 24,159 Coca-Cola Enterprises, Inc.(f) 110,900 2,312 Colgate-Palmolive Co. 125,535 6,422 ConAgra Foods, Inc. 124,446 3,665 Costco Wholesale Corp. 113,551 5,497 CVS Corp. 97,192 4,380 General Mills, Inc. 85,964 4,273 Gillette Co. 238,444 10,678 H.J. Heinz Co. 82,320 3,210 Hershey Foods Corp. 58,008 3,222 Kellogg Co. 97,529 4,356 Kimberly-Clark Corp. 116,564 7,671 Kroger Co.(a) 174,022 3,052 McCormick & Co., Inc. 32,900 1,270 Pepsi Bottling Group, Inc. 60,453 1,635 PepsiCo, Inc. 404,210 21,100 Procter & Gamble Co. 607,922 33,484 Safeway, Inc.(a)(f) 105,293 2,078 Sara Lee Corp. 186,917 4,512 SuperValu, Inc. 32,060 1,107 Sysco Corp. 154,881 5,912 </Table> <Table> <Caption> MARKET VALUE SHARES (000) ---------- ------------ UST Corp.(f) 38,947 $ 1,874 Wal-Mart Stores, Inc. 1,014,128 53,566 Walgreen Co. 243,910 9,359 Wrigley Wm., Jr. Co. 52,916 3,661 ------------ 280,399 ------------ ENERGY -- 6.7% Amerada Hess Corp.(f) 21,202 1,747 Anadarko Petroleum Corp. 58,954 3,821 Apache Corp. 76,830 3,885 Ashland, Inc. 16,580 968 Baker Hughes, Inc. 78,680 3,357 BJ Services Co. 37,855 1,762 Burlington Resources, Inc. 92,956 4,044 ChevronTexaco Corp. 507,994 26,675 ConocoPhillips 165,841 14,400 Devon Energy Corp. 117,922 4,589 EOG Resources, Inc. 27,884 1,990 ExxonMobil Corp. 1,544,302 79,161 Halliburton Co. 103,986 4,080 Kerr-McGee Corp. 35,236 2,036 Marathon Oil Corp. 81,534 3,066 Nabors Industries, Ltd.(a) 35,515 1,822 Noble Corp.(a) 31,523 1,568 Occidental Petroleum Corp. 95,523 5,575 Rowan Cos., Inc.(a)(f) 25,439 659 Schlumberger, Ltd. 141,807 9,494 Sunoco, Inc. 17,728 1,448 Transocean, Inc.(a) 75,595 3,204 Unocal Corp. 62,388 2,698 Valero Energy Corp. 60,700 2,756 ------------ 184,805 ------------ FINANCIALS -- 20.1% ACE, Ltd. 67,355 2,879 AFLAC, Inc. 119,516 4,762 Allstate Corp. 163,207 8,441 Ambac Financial Group, Inc. 25,747 2,115 American Express Co. 301,373 16,988 American International Group, Inc. 623,983 40,977 AmSouth Bancorp(f) 83,319 2,158 AON Corp. 74,223 1,771 Apartment Investment & Management Co. Class A 22,300 859 </Table> 7 STATE STREET EQUITY 500 INDEX PORTFOLIO PORTFOLIO OF INVESTMENTS -- (CONTINUED) DECEMBER 31, 2004 <Table> <Caption> MARKET VALUE SHARES (000) ---------- ------------ FINANCIALS -- (CONTINUED) Archstone-Smith Trust 46,200 $ 1,769 Bank of America Corp. 967,500 45,463 Bank of New York Co., Inc. 187,879 6,279 BB&T Corp. 130,618 5,492 Bear Stearns Cos., Inc. 24,299 2,486 Capital One Financial Corp. 58,815 4,953 Charles Schwab Corp. 321,893 3,850 Chubb Corp. 45,039 3,463 Cincinnati Financial Corp. 39,700 1,757 CIT Group, Inc. 49,300 2,259 Citigroup, Inc. 1,242,671 59,872 Comerica, Inc. 40,432 2,467 Compass Bancshares, Inc. 28,900 1,407 Countrywide Financial Corp. 140,686 5,207 E*Trade Financial Corp.(a) 87,400 1,307 Equity Office Properties Trust 95,241 2,773 Equity Residential 66,207 2,395 Fannie Mae 232,429 16,551 Federal Home Loan Mortgage Corp. 165,846 12,223 Federated Investors, Inc. Class B(f) 25,500 775 Fifth Third Bancorp 135,400 6,402 First Horizon National Corp.(f) 29,117 1,255 Franklin Resources, Inc. 59,144 4,119 Golden West Financial Corp. 74,322 4,565 Goldman Sachs Group, Inc. 115,600 12,027 Hartford Financial Services Group, Inc. 71,288 4,941 Huntington Bancshares, Inc. 53,954 1,337 J.P. Morgan Chase & Co. 853,819 33,307 Janus Capital Group, Inc. 56,319 947 Jefferson-Pilot Corp. 32,160 1,671 KeyCorp(f) 95,809 3,248 Lehman Brothers Holdings, Inc. 63,918 5,592 Lincoln National Corp. 41,431 1,934 Loews Corp. 43,814 3,080 M & T Bank Corp. 27,500 2,966 Marsh & McLennan Cos., Inc. 128,136 4,216 Marshall & Ilsley Corp. 52,292 2,311 MBIA, Inc. 33,758 2,136 MBNA Corp. 308,002 8,683 </Table> <Table> <Caption> MARKET VALUE SHARES (000) ---------- ------------ Mellon Financial Corp. 100,423 $ 3,124 Merrill Lynch & Co., Inc.(f) 223,927 13,384 MetLife, Inc. 176,707 7,158 MGIC Investment Corp.(f) 23,262 1,603 Moody's Corp. 34,865 3,028 Morgan Stanley 261,043 14,493 National City Corp. 163,891 6,154 North Fork Bancorp, Inc. 110,135 3,177 Northern Trust Corp. 51,840 2,518 Plum Creek Timber Co., Inc. 43,080 1,656 PNC Financial Services Group, Inc. 66,447 3,817 Principal Financial Group, Inc. 73,750 3,019 Progressive Corp.(f) 47,247 4,008 ProLogis 43,400 1,881 Providian Financial Corp.(a) 69,673 1,148 Prudential Financial, Inc. 122,300 6,722 Regions Financial Corp. 113,009 4,022 SAFECO Corp.(f) 29,664 1,550 Simon Property Group, Inc. 52,963 3,425 SLM Corp. 102,642 5,480 Sovereign Bancorp, Inc. 81,500 1,838 St. Paul Travelers Cos., Inc. 161,925 6,003 State Street Corp.(g) 79,225 3,892 SunTrust Banks, Inc. 89,572 6,618 Synovus Financial Corp. 72,604 2,075 T. Rowe Price Group, Inc.(f) 29,990 1,865 Torchmark Corp. 25,876 1,479 U.S. Bancorp 446,561 13,986 UnumProvident Corp.(f) 70,835 1,271 Wachovia Corp. 384,786 20,240 Washington Mutual, Inc. 207,113 8,757 Wells Fargo Co. 405,711 25,215 XL Capital, Ltd. Class A 32,632 2,534 Zions Bancorp 21,319 1,450 ------------ 557,025 ------------ HEALTH CARE -- 12.2% Abbott Laboratories 373,967 17,445 Aetna, Inc. 36,032 4,495 Allergan, Inc. 30,991 2,512 AmerisourceBergen Corp. 26,416 1,550 Amgen, Inc.(a) 304,875 19,558 </Table> 8 STATE STREET EQUITY 500 INDEX PORTFOLIO PORTFOLIO OF INVESTMENTS -- (CONTINUED) DECEMBER 31, 2004 <Table> <Caption> MARKET VALUE SHARES (000) ---------- ------------ HEALTH CARE -- (CONTINUED) Applera Corp. -- Applied Biosystems Group 47,567 $ 995 Bausch & Lomb, Inc.(f) 12,825 827 Baxter International, Inc. 149,426 5,161 Becton, Dickinson & Co. 61,729 3,506 Biogen Idec, Inc.(a) 80,073 5,334 Biomet, Inc. 60,041 2,605 Boston Scientific Corp.(a) 203,896 7,248 Bristol-Myers Squibb Co. 462,617 11,852 C.R. Bard, Inc. 24,494 1,567 Cardinal Health, Inc. 104,466 6,075 Caremark Rx, Inc.(a) 111,408 4,393 Chiron Corp.(a) 44,644 1,488 CIGNA Corp. 32,389 2,642 Eli Lilly & Co. 271,897 15,430 Express Scripts, Inc.(a) 18,600 1,422 Forest Laboratories, Inc.(a) 87,006 3,903 Genzyme Corp.(a) 56,105 3,258 Gilead Sciences, Inc.(a) 105,400 3,688 Guidant Corp. 77,164 5,563 HCA, Inc. 99,359 3,970 Health Management Associates, Inc. Class A(f) 57,298 1,302 Hospira, Inc.(a) 37,336 1,251 Humana, Inc.(a) 37,625 1,117 IMS Health, Inc. 55,281 1,283 Johnson & Johnson 710,846 45,082 King Pharmaceuticals, Inc.(a) 56,932 706 Laboratory Corp. of America Holdings(a) 32,800 1,634 Manor Care, Inc. 21,251 753 McKesson Corp. 69,231 2,178 Medco Health Solutions, Inc.(a) 63,872 2,657 MedImmune, Inc.(a) 59,465 1,612 Medtronic, Inc. 290,502 14,429 Merck & Co., Inc. 532,503 17,115 Millipore Corp.(a) 11,628 579 Mylan Laboratories Inc.(f) 63,800 1,128 Pfizer, Inc. 1,803,974 48,509 Quest Diagnostics Inc.(f) 24,000 2,293 Schering-Plough Corp. 355,524 7,423 St. Jude Medical, Inc.(a) 83,894 3,518 </Table> <Table> <Caption> MARKET VALUE SHARES (000) ---------- ------------ Stryker Corp. 97,608 $ 4,710 Tenet Healthcare Corp.(a) 109,309 1,200 UnitedHealth Group, Inc. 157,084 13,828 Watson Pharmaceuticals, Inc.(a)(f) 25,803 847 Wellpoint, Inc.(a) 70,389 8,095 Wyeth 320,731 13,660 Zimmer Holdings, Inc.(a) 58,020 4,649 ------------ 338,045 ------------ INDUSTRIALS -- 11.4% 3M Co. 185,884 15,256 Allied Waste Industries, Inc.(a)(f) 75,867 704 American Power Conversion Corp.(f) 47,267 1,012 American Standard Cos., Inc.(a) 50,621 2,092 Apollo Group, Inc.(a) 45,375 3,662 Avery Dennison Corp. 26,370 1,581 Boeing Co. 199,645 10,336 Burlington Northern Santa Fe Corp. 91,350 4,322 Caterpillar, Inc. 82,285 8,024 Cendant Corp. 248,722 5,815 Cintas Corp. 40,382 1,771 Cooper Industries, Ltd. 21,821 1,481 CSX Corp. 50,624 2,029 Cummins, Inc.(f) 10,373 869 Danaher Corp.(f) 75,026 4,307 Deere & Co. 58,441 4,348 Delta Air Lines, Inc.(a)(f) 30,493 228 Dover Corp. 47,913 2,009 Eaton Corp. 35,478 2,567 Emerson Electric Co. 101,335 7,104 Equifax, Inc. 32,069 901 FedEx Corp. 71,646 7,056 Fluor Corp.(f) 19,806 1,080 General Dynamics Corp. 47,806 5,001 General Electric Co.(e) 2,530,423 92,360 Goodrich Co. 27,955 912 H&R Block, Inc.(f) 38,810 1,902 Honeywell International, Inc. 207,642 7,353 Illinois Tool Works, Inc. 71,164 6,596 Ingersoll-Rand Co. Class A 41,050 3,296 ITT Industries, Inc. 22,002 1,858 </Table> 9 STATE STREET EQUITY 500 INDEX PORTFOLIO PORTFOLIO OF INVESTMENTS -- (CONTINUED) DECEMBER 31, 2004 <Table> <Caption> MARKET VALUE SHARES (000) ---------- ------------ INDUSTRIALS -- (CONTINUED) Lockheed Martin Corp. 104,871 $ 5,826 Masco Corp. 108,974 3,981 Monster Worldwide, Inc.(a) 27,692 932 Navistar International Corp.(a)(f) 16,880 742 Norfolk Southern Corp. 93,261 3,375 Northrop Grumman Corp. 89,278 4,853 PACCAR, Inc. 40,970 3,297 Pall Corp. 29,474 853 Parker-Hannifin Corp. 28,223 2,138 Pitney Bowes, Inc. 54,539 2,524 Power-One, Inc.(a) 20,500 183 R.R. Donnelley & Sons Co. 51,860 1,830 Raytheon Co. 107,714 4,183 Robert Half International, Inc. 41,114 1,210 Rockwell Automation, Inc. 43,520 2,156 Rockwell Collins, Inc. 42,119 1,661 Ryder Systems, Inc. 15,380 735 Southwest Airlines Co. 186,140 3,030 Textron, Inc. 32,775 2,419 Tyco International, Ltd. 483,048 17,264 Union Pacific Corp. 61,040 4,105 United Parcel Service, Inc. Class B 268,800 22,972 United Technologies Corp. 121,657 12,573 W.W. Grainger, Inc. 21,709 1,446 Waste Management, Inc. 136,579 4,089 ------------ 316,209 ------------ INFORMATION TECHNOLOGY -- 16.2% ADC Telecommunications, Inc.(a)(f) 190,527 511 Adobe Systems, Inc. 56,771 3,562 Advanced Micro Devices, Inc.(a)(f) 95,384 2,100 Affiliated Computer Services, Inc.(a)(f) 30,200 1,818 Agilent Technologies, Inc.(a) 115,127 2,775 Altera Corp.(a) 87,978 1,821 Analog Devices, Inc. 88,861 3,281 Andrew Corp.(a) 37,727 514 Apple Computer, Inc.(a) 97,246 6,263 Applied Materials, Inc.(a) 403,661 6,903 Applied Micro Circuits Corp.(a)(f) 75,042 316 </Table> <Table> <Caption> MARKET VALUE SHARES (000) ---------- ------------ Autodesk, Inc. 53,630 $ 2,035 Automatic Data Processing, Inc. 140,838 6,246 Avaya, Inc.(a)(f) 107,415 1,848 BMC Software, Inc.(a) 51,336 955 Broadcom Corp.(a) 77,846 2,513 CIENA Corp.(a)(f) 138,988 464 Cisco Systems, Inc.(a) 1,578,359 30,462 Citrix Systems, Inc.(a) 40,553 995 Computer Associates International, Inc. 138,244 4,294 Computer Sciences Corp.(a) 44,782 2,524 Compuware Corp.(a) 92,657 599 Comverse Technology, Inc.(a) 45,938 1,123 Convergys Corp.(a) 35,005 525 Corning, Inc.(a) 334,285 3,935 Dell, Inc.(a) 595,791 25,107 Electronic Arts, Inc.(a) 72,000 4,441 Electronic Data Systems Corp.(f) 120,686 2,788 EMC Corp.(a) 577,841 8,592 First Data Corp. 200,104 8,512 Fiserv, Inc.(a) 46,347 1,863 Fisher Scientific International, Inc.(a) 27,200 1,697 Freescale Semiconductor, Inc.(a) 94,408 1,733 Gateway, Inc.(a)(f) 91,465 550 Hewlett-Packard Co. 725,419 15,212 Intel Corp. 1,515,203 35,441 International Business Machines Corp. 398,818 39,315 Intuit, Inc.(a) 45,051 1,983 Jabil Circuit, Inc.(a) 48,013 1,228 JDS Uniphase Corp.(a)(f) 344,319 1,091 KLA-Tencor Corp.(a)(f) 46,264 2,155 Lexmark International Group, Inc. Class A(a) 30,602 2,601 Linear Technology Corp. 72,475 2,809 LSI Logic Corp.(a)(f) 93,535 513 Lucent Technologies, Inc.(a)(f) 1,074,672 4,041 Maxim Integrated Products, Inc. 77,056 3,266 Mercury Interactive Corp.(a) 21,548 981 Micron Technology, Inc.(a) 144,032 1,779 Microsoft Corp.(e) 2,602,704 69,518 Molex, Inc. 44,310 1,329 </Table> 10 STATE STREET EQUITY 500 INDEX PORTFOLIO PORTFOLIO OF INVESTMENTS -- (CONTINUED) DECEMBER 31, 2004 <Table> <Caption> MARKET VALUE SHARES (000) ---------- ------------ INFORMATION TECHNOLOGY -- (CONTINUED) Motorola, Inc. 586,198 $ 10,083 National Semiconductor Corp. 84,318 1,513 NCR Corp.(a) 22,192 1,536 Network Appliance, Inc.(a) 87,767 2,916 News Corp. Class A(f) 609,600 11,375 Novell, Inc.(a)(f) 90,942 614 Novellus Systems, Inc.(a) 33,669 939 NVIDIA Corp.(a)(f) 38,651 911 Oracle Corp.(a) 1,231,538 16,897 Parametric Technology Corp.(a) 61,941 365 Paychex, Inc. 89,227 3,041 PerkinElmer, Inc. 31,257 703 PMC-Sierra, Inc.(a)(f) 40,024 450 QLogic Corp.(a) 21,745 799 QUALCOMM, Inc. 393,578 16,688 Sabre Holdings Corp. Class A 32,324 716 Sanmina-SCI Corp.(a) 124,358 1,053 Scientific-Atlanta, Inc.(f) 36,068 1,191 Siebel Systems, Inc.(a) 121,958 1,281 Solectron Corp.(a) 226,514 1,207 Sun Microsystems, Inc.(a) 817,188 4,396 SunGard Data Systems, Inc.(a) 67,950 1,925 Symantec Corp.(a) 149,000 3,838 Symbol Technologies, Inc. 56,885 984 Tektronix, Inc. 23,329 705 Tellabs, Inc.(a) 118,575 1,019 Teradyne, Inc.(a) 47,092 804 Texas Instruments, Inc. 411,903 10,141 Thermo Electron Corp.(a) 38,429 1,160 Unisys Corp.(a) 78,879 803 VERITAS Software Corp.(a) 101,883 2,909 Waters Corp.(a) 27,857 1,303 Xerox Corp.(a) 207,942 3,537 Xilinx, Inc. 81,704 2,422 Yahoo!, Inc.(a) 330,680 12,460 ------------ 449,611 ------------ MATERIALS -- 3.0% Air Products & Chemicals, Inc. 53,489 3,101 Alcoa, Inc. 210,346 6,609 Allegheny Technologies, Inc. 21,729 471 Ball Corp. 26,870 1,182 Bemis Co., Inc. 25,228 734 </Table> <Table> <Caption> MARKET VALUE SHARES (000) ---------- ------------ Dow Chemical Co. 226,899 $ 11,234 E.I. Du Pont de Nemours & Co. 237,439 11,646 Eastman Chemical Co. 18,462 1,066 Ecolab, Inc. 60,626 2,130 Engelhard Corp. 29,030 890 Freeport-McMoRan Copper & Gold, Inc. Class B(f) 41,914 1,602 Georgia-Pacific Group 61,040 2,288 Great Lakes Chemical Corp. 12,503 356 Hercules, Inc.(a) 27,298 405 International Flavors & Fragrances, Inc. 22,204 951 International Paper Co. 117,956 4,954 Louisiana-Pacific Corp. 25,759 689 MeadWestvaco Corp. 47,388 1,606 Monsanto Co. 62,746 3,486 Newmont Mining Corp. 107,642 4,780 Nucor Corp. 37,204 1,947 Pactiv Corp.(a) 35,164 889 Phelps Dodge Corp. 23,505 2,325 PPG Industries, Inc. 40,490 2,760 Praxair, Inc. 76,620 3,383 Rohm & Haas Co. 52,796 2,335 Sealed Air Corp.(a) 20,236 1,078 Sigma-Aldrich Corp. 16,493 997 Temple-Inland, Inc. 13,314 911 United States Steel Corp.(f) 26,902 1,379 Vulcan Materials Co. 24,096 1,316 Weyerhaeuser Co. 56,424 3,793 ------------ 83,293 ------------ TELECOMMUNICATION SERVICES -- 3.3% ALLTEL Corp. 72,598 4,266 AT&T Corp. 187,247 3,569 BellSouth Corp. 440,428 12,239 CenturyTel, Inc.(f) 31,808 1,128 Citizens Communications Co.(f) 77,677 1,071 L-3 Communications Holdings, Inc. 28,400 2,080 Nextel Communications, Inc. Class A(a) 265,536 7,966 Qwest Communications International, Inc.(a) 430,622 1,912 SBC Communications, Inc. 795,504 20,500 </Table> 11 STATE STREET EQUITY 500 INDEX PORTFOLIO PORTFOLIO OF INVESTMENTS -- (CONTINUED) DECEMBER 31, 2004 <Table> <Caption> MARKET VALUE SHARES (000) --------- ------------ TELECOMMUNICATION SERVICES -- (CONTINUED) Sprint Corp. (Fon Group) 354,523 $ 8,810 Verizon Communications, Inc. 663,898 26,895 ------------ 90,436 ------------ UTILITIES -- 3.2% AES Corp.(a) 157,314 2,150 Allegheny Energy, Inc.(a)(f) 30,999 611 Ameren Corp.(f) 45,842 2,299 American Electric Power Co., Inc. 93,454 3,209 Calpine Corp.(a)(f) 144,152 568 CenterPoint Energy, Inc.(f) 72,493 819 Cinergy Corp. 42,358 1,763 CMS Energy Corp.(a)(f) 49,905 522 Consolidated Edison, Inc. 56,822 2,486 Constellation Energy Group, Inc. 42,603 1,862 Dominion Resources, Inc.(f) 78,687 5,330 DTE Energy Co. 41,346 1,783 Duke Energy Corp. 231,377 5,861 Dynegy Inc. Class A(a)(f) 92,330 427 Edison International 76,762 2,459 El Paso Corp.(f) 153,194 1,593 Entergy Corp. 53,443 3,612 Exelon Corp. 159,978 7,050 FirstEnergy Corp. 77,712 3,070 FPL Group, Inc.(f) 43,689 3,266 KeySpan Corp.(f) 37,606 1,484 Kinder Morgan, Inc. 29,238 2,138 Nicor, Inc.(f) 10,913 403 NiSource, Inc. 62,967 1,434 Peoples Energy Corp.(f) 9,031 397 PG&E Corp.(a) 94,523 3,146 Pinnacle West Capital Corp. 21,481 954 PPL Corp. 44,768 2,385 Progress Energy, Inc.(f) 58,108 2,629 Public Service Enterprise Group, Inc.(f) 55,822 2,890 Sempra Energy 54,689 2,006 Southern Co. 178,858 5,995 </Table> <Table> <Caption> MARKET VALUE SHARES (000) --------- ------------ TECO Energy, Inc.(f) 46,176 $ 708 TXU Corp. 57,448 3,709 Williams Cos., Inc.(f) 134,837 2,197 Xcel Energy, Inc.(f) 93,997 1,711 XTO Energy, Inc. 62,200 2,201 ------------ 87,127 ------------ TOTAL COMMON STOCKS (cost $2,082,504,194) 2,699,246 ------------ <Caption> PAR AMOUNT (000) --------- U.S. GOVERNMENT SECURITIES -- 0.2% United States Treasury Bill 2.19% due 03/10/05(b)(c) $ 4,299 4,281 ------------ TOTAL U.S. GOVERNMENT SECURITIES (cost $4,281,257) 4,281 ------------ <Caption> SHARES (000) --------- SHORT TERM INVESTMENTS -- 5.7% AIM Short Term Investment Prime Portfolio 60,104 $ 60,104 Federated Money Market Obligations Trust 487 487 State Street Navigator Securities Lending Prime Portfolio(d)(g) (Note 4) 98,442 98,442 ------------ TOTAL SHORT TERM INVESTMENTS (cost $159,032,959) 159,033 ------------ TOTAL INVESTMENTS -- 103.4% (identified cost $2,245,818,410) 2,862,560 Liabilities in excess of other assets -- (3.4)% (95,093) ------------ NET ASSETS -- 100% $2,767,467 ============ </Table> 12 STATE STREET EQUITY 500 INDEX PORTFOLIO PORTFOLIO OF INVESTMENTS -- (CONTINUED) DECEMBER 31, 2004 <Table> <Caption> UNREALIZED NUMBER OF APPRECIATION CONTRACTS (000) --------- ------------ SCHEDULE OF FUTURES CONTRACTS S&P 500 Financial Futures Contracts (long) Expiration date 03/2005 364 $ 1,073 ------------ Total unrealized appreciation on open futures contracts purchased $ 1,073 ============ </Table> - --------------- (a) Non-income producing security. (b) Security held as collateral in relation to initial margin requirements on futures contracts. (c) Rate represents annualized yield at date of purchase. (d) Security represents investment made with cash collateral received from securities loaned. (e) All or a portion of these securities have been pledged to cover collateral requirements for open futures contracts. (f) All or a portion of these securities were on loan at December 31, 2004. (g) Affiliated issuer. See table below for more information. <Table> <Caption> NUMBER OF SHARES PURCHASED SHARES SOLD FOR NUMBER OF INCOME EARNED SHARES HELD FOR THE YEAR THE YEAR ENDED SHARES HELD AT FOR THE YEAR REALIZED GAIN SECURITY DESCRIPTION AT 12/31/03 ENDED 12/31/04 12/31/04 12/31/04 ENDED 12/31/04 ON SHARES SOLD - -------------------- ----------- ---------------- --------------- --------------- -------------- -------------- State Street Corp. 84,525 3,400 8,700 79,225 $52,637 $23,855 State Street Navigator Securities Lending Prime Portfolio 71,146,646 976,149,740 948,854,719 98,441,667 69,912 -- </Table> 13 STATE STREET EQUITY 500 INDEX PORTFOLIO STATEMENT OF ASSETS AND LIABILITIES DECEMBER 31, 2004 (Amounts in thousands) <Table> ASSETS Investments in unaffiliated issuers at market (identified cost $2,144,730) -- including $97,986 of securities loaned (Note 2) $2,760,226 Investments in non-controlled affiliates at market (identified cost $101,088) (Note 4) 102,334 ---------- 2,862,560 Receivables: Dividends and interest 3,608 ---------- Total assets 2,866,168 LIABILITIES Payables: Investment securities purchased 102 Daily variation margin on futures contracts 53 Due upon return of securities loaned 98,442 Management fees (Note 4) 104 ---------- Total liabilities 98,701 ---------- NET ASSETS $2,767,467 ========== COMPOSITION OF NET ASSETS Paid-in capital $2,149,652 Net unrealized appreciation on investments and futures contracts 617,815 ---------- NET ASSETS $2,767,467 ========== </Table> See Notes to Financial Statements. 14 STATE STREET EQUITY 500 INDEX PORTFOLIO STATEMENT OF OPERATIONS FOR THE YEAR ENDED DECEMBER 31, 2004 (Amounts in thousands) <Table> INVESTMENT INCOME Dividend income -- unaffiliated issuers $ 52,917 Dividend income -- non-controlled affiliated issuer 53 Interest 819 Security lending income (Notes 2 and 4) 70 -------- Total Investment Income 53,859 EXPENSES Management fees (Note 4) $ 1,201 -------- Total Expenses 1,201 -------- NET INVESTMENT INCOME 52,658 -------- REALIZED AND UNREALIZED GAIN (LOSS) Net realized gain (loss) on: Investments -- unaffiliated issuers (34,201) Investments -- non-controlled affiliated issuer 24 Futures contracts 7,688 -------- (26,489) Net change in unrealized appreciation (depreciation) on: Investments 250,841 Futures contracts (943) -------- 249,898 -------- Net realized and unrealized gain 223,409 -------- NET INCREASE IN NET ASSETS RESULTING FROM OPERATIONS $276,067 ======== </Table> See Notes to Financial Statements. 15 STATE STREET EQUITY 500 INDEX PORTFOLIO STATEMENT OF CHANGES IN NET ASSETS (Amounts in thousands) <Table> <Caption> For the For the Year Ended Year Ended December 31, 2004 December 31, 2003 ----------------- ----------------- INCREASE (DECREASE) IN NET ASSETS FROM: OPERATIONS Net investment income $ 52,658 $ 39,264 Net realized loss on investments and futures contracts (26,489) (90,744) Net change in unrealized appreciation (depreciation) 249,898 641,095 ---------- ---------- Net increase in net assets resulting from operations 276,067 589,615 ---------- ---------- CAPITAL TRANSACTIONS Proceeds from contributions 331,241 547,305 Contributions in-kind -- 19,659 Fair value of withdrawals (481,557) (434,455) Withdrawals in-kind (72,956) -- ---------- ---------- Net increase (decrease) in net assets from capital transactions (223,272) 132,509 ---------- ---------- TOTAL NET INCREASE IN NET ASSETS 52,795 722,124 NET ASSETS Beginning of year 2,714,672 1,992,548 ---------- ---------- End of year $2,767,467 $2,714,672 ========== ========== </Table> See Notes to Financial Statements. 16 STATE STREET EQUITY 500 INDEX PORTFOLIO FINANCIAL HIGHLIGHTS The following table includes selected supplemental data and ratios to average net assets: <Table> <Caption> Year Year Year Year Period Ended Ended Ended Ended Ended 12/31/04 12/31/03 12/31/02 12/31/01 12/31/00* ---------- ---------- ---------- ---------- ---------- SUPPLEMENTAL DATA AND RATIOS: Net assets, end of period (in thousands) $2,767,467 $2,714,672 $1,992,548 $2,692,298 $2,957,271 Ratios to average net assets: Operating expenses 0.045% 0.045% 0.045% 0.045% 0.045%+ Net investment income 1.97% 1.74% 1.57% 1.34% 1.14%+ Portfolio turnover rate** 9% 12% 13% 14% 18%++ Total return(a) 10.86% 28.62% (22.16%) (11.94%) (2.41%)++ </Table> - --------------- * The Portfolio commenced operations on March 1, 2000. ** The Portfolio turnover rate excludes in-kind security transactions. + Annualized. ++ Not Annualized. (a) Results represent past performance and are not indicative of future results. See Notes to Financial Statements. 17 STATE STREET EQUITY 500 INDEX PORTFOLIO NOTES TO FINANCIAL STATEMENTS DECEMBER 31, 2004 1. ORGANIZATION The State Street Master Funds (the "Trust") is a registered and diversified open-end investment company, as defined in the Investment Company Act of 1940, as amended (the "1940 Act"), that was organized as a business trust under the laws of the Commonwealth of Massachusetts on July 27, 1999. The Trust comprises seven investment portfolios: the State Street Equity 500 Index Portfolio, the State Street Equity 400 Index Portfolio, the State Street Equity 2000 Index Portfolio, the State Street MSCI(R) EAFE(R) Index Portfolio, the State Street Aggregate Bond Index Portfolio, the State Street Money Market Portfolio, and the State Street U.S. Government Money Market Portfolio. Information presented in these financial statements pertains only to the State Street Equity 500 Index Portfolio (the "Portfolio"). At December 31, 2004, only the Portfolio, State Street MSCI(R) EAFE(R) Index Portfolio and State Street Money Market Portfolio had commenced operations. Pursuant to the Trust's Declaration of Trust, the Board of Trustees may issue an unlimited number of non-transferable beneficial interests. The Portfolio's investment objective is to replicate, as closely as possible, before expenses, the performance of the Standard & Poor's 500 Composite Stock Price Index (the "S&P 500(R) Index"). The Portfolio uses a passive management strategy designed to track the performance of the S&P 500(R) Index. The S&P 500(R) Index is a well-known, unmanaged, stock index that includes common stocks of 500 companies from several industrial sectors representing a significant portion of the market value of all stocks publicly traded in the United States. 2. SIGNIFICANT ACCOUNTING POLICIES The following is a summary of the significant accounting policies consistently followed by the Portfolio in the preparation of its financial statements. SECURITY VALUATION: The Portfolio's investments are valued each business day by independent pricing services. Equity securities for which market quotations are available are valued at the last sale price or official closing price (closing bid price if no sale has occurred) on the primary market or exchange on which they trade. Investments in other mutual funds are valued at the net asset value per share. Fixed-income securities and options are valued on the basis of the closing bid price. Futures contracts are valued on the basis of the last sale price. Money market instruments maturing within 60 days of the valuation date are valued at amortized cost, a method by which each money market instrument is initially valued at cost, and thereafter a constant accretion or amortization of any discount or premium is recorded until maturity of the security. The Portfolio may value securities for which market quotations are not readily available at "fair value," as determined in good faith pursuant to procedures established by the Board of Trustees. 18 STATE STREET EQUITY 500 INDEX PORTFOLIO NOTES TO FINANCIAL STATEMENTS (CONTINUED) DECEMBER 31, 2004 SECURITIES TRANSACTIONS, INVESTMENT INCOME AND EXPENSES: Securities transactions are recorded on a trade date basis. Dividend income is recorded on the ex-dividend date. Interest income is recorded daily on the accrual basis and includes amortization of premium and accretion of discount on investments. Realized gains and losses from securities transactions are recorded on the basis of identified cost. Expenses are accrued daily based on average daily net assets. All of the net investment income and realized and unrealized gains and losses from the security transactions of the Portfolio are allocated pro rata among the partners in the Portfolio based on each partner's daily ownership percentage. FEDERAL INCOME TAXES: The Portfolio is not required to pay federal income taxes on its net investment income and net capital gains because it is treated as a partnership for federal income tax purposes. All interest, dividends, gains and losses of the Portfolio are deemed to have been "passed through" to the Portfolio's partners in proportion to their holdings in the Portfolio, regardless of whether such items have been distributed by the Portfolio. Each partner is responsible for tax liability based on its distributive share; therefore, no provision has been made for federal income taxes. FUTURES: The Portfolio may enter into financial futures contracts as part of its strategy to track the performance of the S&P 500(R) Index. Upon entering into a futures contract, the Portfolio is required to deposit with the broker cash or securities in an amount equal to a certain percentage of the contract amount. Variation margin payments are made or received by the Portfolio each day, depending on the daily fluctuations in the value of the underlying security or index, and are recorded for financial statement purposes as unrealized gains or losses by the Portfolio. The Portfolio recognizes a realized gain or loss when the contract is closed. The Portfolio voluntarily segregates securities in an amount equal to the outstanding value of the open futures contracts in accordance with Securities and Exchange Commission (the "SEC") requirements. The primary risks associated with the use of futures contracts are an imperfect correlation between the change in market value of the securities held by the Portfolio and the prices of futures contracts and the possibility of an illiquid market. SECURITIES LENDING: The Trust, on behalf of the Portfolio, entered into a Securities Lending Agreement (the "Agreement") with State Street Bank and Trust Company ("State Street"). Under the terms of the Agreement, the Portfolio may lend portfolio securities to qualified borrowers in order to earn additional income. The Agreement requires that loans are secured at all times by cash, U.S. Government securities, sovereign debt, or irrevocable lines of credit in an amount at least equal to 102% of the market value of domestic securities loaned (105% in the case of foreign securities), plus accrued interest and dividends, determined on a daily basis. Proceeds collected by State Street on investment of cash collateral or any fee income is allocated as follows: 75% to the Portfolio and 25% to State Street. For the year ended December 31, 2004, the earned income for the Portfolio and State Street was $69,912 and $23,304, respectively. 19 STATE STREET EQUITY 500 INDEX PORTFOLIO NOTES TO FINANCIAL STATEMENTS (CONTINUED) DECEMBER 31, 2004 The primary risk associated with securities lending is that if the borrower defaults on its obligation to return the securities loaned because of insolvency or other reasons, the Portfolio could experience delays and costs in recovering the securities loaned or in gaining access to the collateral. At December 31, 2004, the value of the securities loaned amounted to $97,985,663. The loans were collateralized with cash of $98,441,667, which the Portfolio then invested in the State Street Navigator Securities Lending Prime Portfolio (the "Prime Portfolio"), an affiliated investment company, and letters of credit from JP Morgan Chase Bank and BNP Paribas in the amounts of $1,264,800 and $2,150,160, respectively. USE OF ESTIMATES: The Portfolio's financial statements are prepared in accordance with U.S. generally accepted accounting principles that require the use of management estimates. Actual results could differ from those estimates. 3. SECURITIES TRANSACTIONS For the year ended December 31, 2004, purchases and sales of investment securities, excluding short-term investments, futures contracts, and in-kind withdrawals, aggregated to $237,412,033 and $297,872,960, respectively. The aggregate value of in-kind withdrawals was $72,956,408. At December 31, 2004, the tax cost of investments was $2,450,998,571. The aggregate gross unrealized appreciation and gross unrealized depreciation was $783,440,674 and $371,879,248, respectively, resulting in net appreciation of $411,561,426 for all securities as computed on a federal income tax basis. The differences between book and tax cost amounts are primarily due to wash sale loss deferrals. 4. RELATED PARTY FEES AND TRANSACTIONS The Portfolio has entered into an investment advisory agreement with SSgA Funds Management, Inc. ("SSgA FM"), a subsidiary of State Street Corp. and an affiliate of State Street, under which SSgA FM directs the investments of the Portfolio in accordance with its investment objective, policies, and limitations. The Trust has contracted with State Street to provide custody, administration and transfer agent services to the Portfolio. In compensation for SSgA FM's services as investment adviser and for State Street's services as administrator, custodian and transfer agent (and for assuming ordinary operating expenses of the Portfolio, including ordinary legal, audit and trustees fees expenses), State Street receives a unitary fee, calculated daily, at the annual rate of 0.045% of the Portfolio's average daily net assets. Certain investments made by the Portfolio represent securities affiliated with State Street and SSgA FM. Investments made with cash collateral received from securities loaned were used to purchase shares of the Prime Portfolio, which is offered by State Street and advised by SSgA FM. Investments in State Street Corp., the holding company of State Street, were made according to its representative portion of 20 STATE STREET EQUITY 500 INDEX PORTFOLIO NOTES TO FINANCIAL STATEMENTS (CONTINUED) DECEMBER 31, 2004 the S&P 500(R) Index. The market value of each of these investments at December 31, 2004 is listed in the Portfolio of Investments. During the year, the Portfolio had investment transactions executed through State Street Global Markets LLC, a wholly owned subsidiary of State Street Corp., and an affiliated broker-dealer of SSgA FM. For the year ended December 31, 2004, the Portfolio paid brokerage commissions to State Street Global Markets LLC of $52,740. 5. INDEMNIFICATIONS Like many other companies, the Trust's organizational documents provide that its officers and trustees are indemnified against certain liabilities arising out of the performance of their duties to the Trust. In addition, both in some of its principal service contracts and in the normal course of its business, the Trust enters into contracts that provide indemnifications to other parties for certain types of losses or liabilities. The Trust's maximum exposure under these arrangements in unknown as this could involve future claims against the Trust. 21 STATE STREET EQUITY 500 INDEX PORTFOLIO NOTES TO FINANCIAL STATEMENTS (CONTINUED) DECEMBER 31, 2004 GENERAL INFORMATION (UNAUDITED) PROXY VOTING POLICIES AND PROCEDURES AND RECORD The Trust has adopted proxy voting procedures relating to portfolio securities held by the Portfolio. A description of the policies and procedures is available without charge, upon request, by (i) calling (877) 521-4083 or (ii) on the website of the Securities and Exchange Commission (the "SEC") at www.sec.gov. Information on how the Portfolio 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 (877) 521-4083 or (ii) on the SEC's website at www.sec.gov. QUARTERLY PORTFOLIO SCHEDULE The Trust files a complete schedule of portfolio holdings with the SEC for the first and third quarters of its fiscal year (as of March and September of each year) on Form N-Q. The Trust's Form N-Q is available on the SEC's website at www.sec.gov. The Trust's Form N-Q may be reviewed and copied at the SEC's Public Reference Room in Washington, D.C. and information on the operation of the Public Reference Room may be obtained by calling 1-800-SEC-0330. The most recent Form N-Q is available without charge, upon request, by calling (877) 521-4083. 22 STATE STREET EQUITY 500 INDEX PORTFOLIO REPORT OF ERNST & YOUNG LLP, INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM To the Board of Trustees of State Street Master Funds and Owners of Beneficial Interest of State Street Equity 500 Index Portfolio: We have audited the accompanying statement of assets and liabilities, including the portfolio of investments, of the State Street Equity 500 Index Portfolio (one of the portfolios constituting State Street Master Funds)(the Portfolio) as of December 31, 2004, and the related statement of operations for the year then ended, the statements of changes in net assets for each of the two years in the period then ended and the financial highlights for each of the periods indicated therein. These financial statements and financial highlights are the responsibility of the Portfolio's management. Our responsibility is to express an opinion on these financial statements and financial highlights based on our audits. We conducted our audits in accordance with the standards of the Public Company Accounting Oversight Board (United States). Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements and financial highlights are free of material misstatement. An audit includes consideration of internal control over financial reporting as a basis for designing audit procedures that are appropriate in the circumstances, but not for the purpose of expressing an opinion on the effectiveness of the Portfolio's internal control over financial reporting. Accordingly, we express no such opinion. An audit also includes examining, on a test basis, evidence supporting the amounts and disclosures in the financial statements and financial highlights, assessing the accounting principles used and significant estimates made by management, and evaluating the overall financial statement presentation. Our procedures included confirmation of securities owned as of December 31, 2004, by correspondence with the custodian and brokers or other appropriate auditing procedures where replies from the brokers were not received. We believe that our audits provide a reasonable basis for our opinion. In our opinion, the financial statements and financial highlights referred to above present fairly, in all material respects, the financial position of the State Street Equity 500 Index Portfolio of State Street Master Funds at December 31, 2004, the results of its operations for the year then ended, the changes in its net assets for each of the two years in the period then ended and the financial highlights for each of the periods indicated therein, in conformity with U.S. generally accepted accounting principles. /s/ Ernst & Young LLP Boston, Massachusetts February 11, 2005 23 STATE STREET EQUITY 500 INDEX PORTFOLIO STATE STREET MASTER FUNDS (UNAUDITED) <Table> <Caption> ----------------------------------------------------------------------------------------------------------------------------------- NUMBER OF FUNDS IN OTHER POSITION(S) TERM OF OFFICE FUND COMPLEX DIRECTORSHIPS NAME, ADDRESS AND HELD WITH AND LENGTH OF PRINCIPAL OCCUPATION OVERSEEN BY HELD BY DATE OF BIRTH ("DOB") TRUST TIME SERVED DURING PAST FIVE YEARS TRUSTEE TRUSTEE ----------------------------------------------------------------------------------------------------------------------------------- INDEPENDENT TRUSTEES: ----------------------------------------------------------------------------------------------------------------------------------- Michael F. Holland Trustee and Term: Indefinite Chairman, Holland & Company L.L.C. 14 Trustee, State Holland & Company, LLC Chairman of (investment adviser) (1995 -- present). Street 375 Park Avenue the Board Elected: 7/99 Institutional New York, NY 10152 Investment DOB: 07/08/44 Trust; Director of the Holland Series Fund, Inc.; and Director, The China Fund, Inc. ----------------------------------------------------------------------------------------------------------------------------------- William L. Boyan Trustee Term: Indefinite Trustee of Old Mutual South Africa Master 14 Trustee, State State Street Master Trust (investments) (1997 -- present); Street Funds Elected: 7/99 Chairman emeritus, Children's Hospital Institutional P.O. Box 5049 (1984 -- present); Director, Boston Plan For Investment Boston, MA 02206 Excellence (non-profit) (1994 -- present); Trust; and DOB: 01/20/37 President and Chief Operations Officer, John Trustee, Old Hancock Mutual Life Insurance Company Mutual South (1959 -- 1999). Mr. Boyan retired in 1999. Africa Master Trust ----------------------------------------------------------------------------------------------------------------------------------- Rina K. Spence Trustee Term: Indefinite President of SpenceCare International LLC 14 Trustee, State 7 Acacia Street (1998 -- present); Member of the Advisory Street Cambridge, MA 02138 Elected: 7/99 Board, Ingenium Corp., (technology company) Institutional DOB: 10/24/48 (2001 -- present); Chief Executive Officer, Investment IEmily.com, (internet company) Trust; Director (2000 -- 2001); Trustee Eastern Enterprise of Berkshire (utilities) (1988 -- 2000). Life Insurance Company of America; and Director, IEmily.com ----------------------------------------------------------------------------------------------------------------------------------- Douglas T. Williams Trustee Term: Indefinite Executive Vice President of Chase Manhattan 14 Trustee, State State Street Master Elected: 7/99 Bank, (1987 -- 1999). Mr. Williams retired Street Funds in 1999. Insitutional P.O. Box 5049 Investment Boston, MA 02206 Trust DOB: 12/23/40 ----------------------------------------------------------------------------------------------------------------------------------- </Table> 24 STATE STREET EQUITY 500 INDEX PORTFOLIO STATE STREET MASTER FUNDS (UNAUDITED) <Table> <Caption> ---------------------------------------------------------------------------------------------------------------------------------- NUMBER OF FUNDS IN OTHER POSITION(S) TERM OF OFFICE FUND COMPLEX DIRECTORSHIPS NAME, ADDRESS AND HELD WITH AND LENGTH OF PRINCIPAL OCCUPATION OVERSEEN BY HELD BY DATE OF BIRTH ("DOB") TRUST TIME SERVED DURING PAST FIVE YEARS TRUSTEE TRUSTEE ---------------------------------------------------------------------------------------------------------------------------------- OFFICERS: ---------------------------------------------------------------------------------------------------------------------------------- Donald A. Gignac President Term: Senior Vice President of State Street Bank -- -- State Street Bank and Indefinite and Trust Company (2002 -- present); Vice Trust Company President of State Street Bank and Trust 2 Avenue de Lafayette Elected: 8/03 Company (1993 to 2002). Boston, MA 02111 DOB: 06/14/65 ---------------------------------------------------------------------------------------------------------------------------------- Karen Gillogly Treasurer Term: Vice President of State Street Bank and -- -- State Street Bank and Indefinite Trust Company (1999 -- present); Audit Trust Company Senior Manager, Ernst & Young LLP One Federal Street Elected: 9/03 (1998 -- 1999). Boston, MA 02110 DOB: 09/03/66 ---------------------------------------------------------------------------------------------------------------------------------- Julie A. Tedesco Secretary Term: Vice President and Counsel of State Street -- -- State Street Bank and Indefinite Bank and Trust Company (2000 -- present); Trust Company Counsel of First Data Investor Services One Federal Street Elected: 5/00 Group, Inc., (1994 -- 2000). Boston, MA 02110 DOB: 09/03/57 ---------------------------------------------------------------------------------------------------------------------------------- Peter A. Ambrosini Chief Term: Unlimited Senior Principal and Chief Compliance and -- -- SSgA Funds Compliance Risk Management Officer, SSgA Funds Management, Inc. Officer Elected: 5/04 Management, Inc. and State Street Global State Street Financial Advisors (2001 -- present); Managing Center Director, PricewaterhouseCoopers LLP One Lincoln Street (1986 -- 2001). Boston, MA 02111 DOB: 12/17/43 ---------------------------------------------------------------------------------------------------------------------------------- </Table> The Statement of Additional Information includes additional information about the Trust's Trustees and is available, without charge, upon request, by calling (toll free) 877-521-4083. 25 TRUSTEES Michael F. Holland William L. Boyan Rina K. Spence Douglas T. Williams INVESTMENT ADVISER SSgA Funds Management, Inc. State Street Financial Center One Lincoln Street Boston, MA 02111 ADMINISTRATOR, CUSTODIAN AND TRANSFER AGENT State Street Bank and Trust Company 225 Franklin Street Boston, MA 02110 INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM Ernst & Young LLP 200 Clarendon Street Boston, MA 02116 LEGAL COUNSEL Ropes & Gray LLP One International Place Boston, MA 02109 This report is for shareholder information. This is not a prospectus intended for use in the purchase or sale of shares of beneficial interest. STATE STREET EQUITY 500 INDEX PORTFOLIO State Street Bank and Trust Company P.O. Box 5049 Boston, MA 02206 STATE STREET INSTITUTIONAL LIQUID RESERVES FUND ANNUAL REPORT DECEMBER 31, 2004 STATE STREET INSTITUTIONAL LIQUID RESERVES FUND EXPENSE EXAMPLE As a shareholder of the State Street Institutional Liquid Reserves Fund (the "Fund"), you incur ongoing costs, which include costs for administrative services and distribution (12b-1) fees, among others, in addition to the Fund's proportionate share of expenses of the State Street Money Market Portfolio. This example is intended to help you understand your ongoing costs (in dollars) of investing in the Fund and to compare these costs with the ongoing costs of investing in other mutual funds. The example is based on an investment of $1,000 made at the beginning of the period shown and held for the entire period from August 12, 2004 (commencement of operations) to December 31, 2004. The table below illustrates your Fund's costs in two ways: - BASED ON ACTUAL FUND RETURN. This section helps you to estimate the actual expenses that you paid over the period. The "Ending Account Value" shown is derived from the Fund's actual return, and the third column shows the dollar amount that would have been paid by an investor who started with $1,000 in the Fund. You may use the information here, together with the amount you invested, to estimate the expenses that you paid over the period. To do so, simply divide your account value by $1,000 (for example, an $8,600 account value divided by $1,000 = 8.6), then multiply the result by the number given for the Fund under the heading "Expenses Paid During Period". - BASED ON HYPOTHETICAL 5% RETURN. This section is intended to help you compare your Fund's costs with those of other mutual funds. It assumes that the Fund had a yearly return of 5% before expenses, but that the expense ratio is unchanged. In this case- because the return used is not the Fund's actual return- the results do not apply to your investment. The example is useful in making comparisons because the Securities and Exchange Commission requires all mutual funds to calculate expenses based on a 5% return. You can assess your Fund's costs by comparing this hypothetical example with the hypothetical examples that appear in shareholder reports of other funds. Period from August 12, 2004 (commencement of operations) to December 31, 2004 Beginning Ending Expenses Paid Account Value Account Value During 8/12/04 12/31/04 Period * ------- -------- -------- Based on Actual Fund Return $1,000.00 $1,006.60 $ 0.58 Based on Hypothetical (5% return before $1,000.00 $1,018.82 $ 0.59 expenses) * The calculations are based on expenses incurred in the most recent fiscal period of the Fund. The Fund's annualized average weighted expense ratio as of December 31, 2004 was 0.150%, which includes the Fund's proportionate share of the expenses of the State Street Money Market Portfolio. The dollar amounts shown as "Expenses Paid" are equal to the annualized average weighted expense ratio multiplied by the average account value over the period, multiplied by the number of days in the most recent period (from August 12, 2004 (commencement of operations) to December 31, 2004), then divided by the number of days in the most recent 12-month period. 1 STATE STREET INSTITUTIONAL LIQUID RESERVES FUND STATEMENT OF ASSETS AND LIABILITIES DECEMBER 31, 2004 ASSETS Investment in State Street Money Market Portfolio, at value (identified cost $381,714,498)(Note 1) $381,714,498 Receivable from adviser (Note 3) 23,049 ------------ Total assets 381,737,547 LIABILITIES Payables: Administration, custody and transfer agent fees (Note 3) 17,670 Distribution fees (Note 3) 11,175 Registration and filing fees 40,932 Professional fees 22,750 Accrued expenses and other liabilities 7,128 ------------ Total liabilities 99,655 ------------ NET ASSETS $381,637,892 ============ NET ASSETS CONSIST OF: Paid-in capital $381,637,892 ------------ NET ASSETS $381,637,892 ============ Shares of beneficial interest outstanding 381,637,892 Offering, net asset value, and redemption price per share $ 1.00 ============ See Notes to Financial Statements. 2 STATE STREET INSTITUTIONAL LIQUID RESERVES FUND STATEMENT OF OPERATIONS FOR THE PERIOD ENDED DECEMBER 31, 2004* INCOME Interest income allocated from Portfolio (Note 2) $ 2,240,092 Expenses allocated from Portfolio (Note 3) (123,335) ----------- 2,116,757 ----------- EXPENSES Distribution fees (Note 3) 61,668 Professional fees 23,076 Administration and custody fees (Note 3) 14,360 Transfer agent fees (Note 3) 11,644 Registration and filing fees 40,932 Other expenses 7,407 ----------- Total Expenses 159,087 Less: Fee reimbursements by investment adviser (Note 3) (97,420) ----------- Total Net Expenses 61,667 ----------- NET INVESTMENT INCOME 2,055,090 ----------- NET INCREASE IN NET ASSETS RESULTING FROM OPERATIONS $ 2,055,090 =========== - ------------- * The Fund commenced operations on August 12, 2004. See Notes to Financial Statements. 3 STATE STREET INSTITUTIONAL LIQUID RESERVES FUND STATEMENT OF CHANGES IN NET ASSETS For the Period Ended December 31, 2004* ------------------ INCREASE IN NET ASSETS RESULTING FROM: OPERATIONS: Net investment income $ 2,055,090 --------------- Net increase in net assets resulting from operations 2,055,090 --------------- DISTRIBUTIONS TO SHAREHOLDERS FROM: Net investment income (2,055,090) --------------- NET INCREASE FROM CAPITAL SHARE TRANSACTIONS Shares sold 1,648,841,641 Reinvestment of distributions 2,055,090 Shares redeemed (1,269,258,839) --------------- Net increase from capital share transactions 381,637,892 --------------- Net increase in net assets 381,637,892 NET ASSETS, BEGINNING OF PERIOD - --------------- NET ASSETS, END OF PERIOD $ 381,637,892 =============== Accumulated undistributed net investment income $ - =============== CHANGES IN SHARES: Shares sold 1,648,841,641 Reinvestment of distributions 2,055,090 Shares redeemed (1,269,258,839) --------------- Net increase in shares 381,637,892 =============== * The Fund commenced operations on August 12, 2004. See Notes to Financial Statements. 4 STATE STREET INSTITUTIONAL LIQUID RESERVES FUND FINANCIAL HIGHLIGHTS Selected data for a share of beneficial interest outstanding throughout the period: PERIOD ENDED 12/31/04* --------- PER SHARE OPERATING PERFORMANCE (a): NET ASSET VALUE, BEGINNING OF PERIOD $ 1.0000 --------- INVESTMENT OPERATIONS: Net investment income 0.0066 --------- LESS DISTRIBUTIONS FROM: Net investment income (0.0066) --------- Net increase (decrease) in net assets - --------- NET ASSET VALUE, END OF PERIOD $ 1.0000 --------- TOTAL RETURN (b) 0.66% RATIOS AND SUPPLEMENTAL DATA: Net assets, end of period (in thousands) $ 381,638 Ratio of gross expenses to average net assets 0.23% ** Ratio of net expenses to average net assets 0.15% ** Ratio of net investment income to average net assets 1.67% ** - ------------- * The Fund commenced operations on August 12, 2004. (a) The per share amounts and percentages reflect income and expenses assuming inclusion of the Fund's proportionate share of income and expenses of the State Street Money Market Portfolio. (b) Total return is calculated assuming a purchase of shares at net asset value on the first day and a sale at net asset value on the last day of each period reported. Distributions are assumed, for the purpose of this calculation, to be reinvested at net asset value per share on the respective payment dates. Total return for periods of less than one year is not annualized. Results represent past performance and are not indicative of future results. ** Annualized. See Notes to Financial Statements. 5 STATE STREET INSTITUTIONAL LIQUID RESERVES FUND NOTES TO FINANCIAL STATEMENT DECEMBER 31,2004 1. ORGANIZATION The State Street Institutional Investment Trust (the "Trust") is a registered and diversified open-end investment company, as defined in the Investment Company Act of 1940, as amended (the "1940 Act"), that was organized as a business trust under the laws of the Commonwealth of Massachusetts on February 16, 2000. The Trust consists of the following diversified series: the State Street Equity 500 Index Fund, the State Street Equity 400 Index Fund, the State Street Equity 2000 Index Fund, the State Street MSCI(R) EAFE(R) Index Fund, the State Street Aggregate Bond Index Fund, the State Street Institutional Liquid Reserves Fund and the State Street U.S. Government Money Market Fund, each of which is a separate diversified series of the Trust. Information presented in these financial statements pertains only to the State Street Institutional Liquid Reserves Fund (the "Fund"). Pursuant to the Trust's Declaration of Trust, the Trustees are authorized to issue an unlimited number of shares, with no par value, of the Fund. The Fund commenced operations on August 12, 2004. As of December 31, 2004, the Fund and the State Street Equity 500 Index Fund were the only series of the Trust that had commenced operations. It is the policy of the Fund to maintain a continous net asset value per share of $1.00; the Fund has adopted certain investment, valuation, and dividend and distribution policies, which conform to general industry practice, to enable it to do so. However, there is no assurance the Fund will be able to maintain a stable net asset value per share. The Fund invests all of its investable assets in interests in the State Street Money Market Portfolio (the "Portfolio"). The investment objective and policies of the Portfolio are the same as the Fund. The value of the Fund's investment in the Portfolio reflects the Fund's proportionate interest in the net assets of the Portfolio (99.99% at December 31, 2004). The performance of the Fund is directly affected by the performance of the Portfolio. The financial statements of the Portfolio, including the portfolio of investments, are included elsewhere in this report and should be read in conjunction with the Fund's financial statements. 2. SIGNIFICANT ACCOUNTING POLICIES The following is a summary of the significant accounting policies consistently followed by the Fund in the preparation of its financial statements. SECURITY VALUATION - The Fund records its investment in the Portfolio at value. The valuation policies of the Portfolio are discussed in Note 2 of the Portfolio's Notes to Financial Statements, which are included elsewhere within this report. SECURITY TRANSACTIONS, INVESTMENT INCOME AND EXPENSES - Securities transactions are recorded on a trade date basis. Net investment income consists of the Fund's pro-rata share of the net investment income of the Portfolio, less all expenses of the Fund. Realized gains and losses from security transactions consist of the Fund's pro-rata share 6 STATE STREET INSTITUTIONAL LIQUID RESERVES FUND NOTES TO FINANCIAL STATEMENTS DECEMBER 31, 2004 of the Portfolio's realized gains and losses. Realized gains and losses from security transactions are recorded on the basis of identified cost. DIVIDENDS AND DISTRIBUTIONS - Dividends from net investment income are declared daily and are payable as of the last business day of each month. Net realized capital gains, if any, are distributed annually, unless additional distributions are required for compliance with applicable tax regulations. The tax character of distributions paid to shareholders during the period ended December 31, 2004 was $2,055,090 of ordinary income. At December 31, 2004, the components of distributable earnings on a tax basis were as follows: Undistributed ordinary income $ 0 FEDERAL INCOME TAXES - The Fund intends to qualify for and elect treatment as a regulated investment company under Subchapter M of the Internal Revenue Code of 1986, as amended. By so qualifying and electing, the Fund will not be subject to federal income taxes to the extent it distributes its taxable income, including any net realized capital gains, for each fiscal year. In addition, by distributing during each calendar year substantially all of its net taxable income and capital gains, if any, the Fund will not be subject to federal excise tax. Income and capital gain distributions are determined in accordance with income tax regulations, which may differ from generally accepted accounting principles. EXPENSE ALLOCATION: Certain expenses are applicable to multiple Portfolios and Funds. Expenses directly attributable to a Portfolio or Fund are charged to that Portfolio or Fund. Expenses of the Trust that are not directly attributed to a Fund are allocated among the Funds, on the basis of relative net assets, except where a more appropriate allocation of expenses to each of the Funds can otherwise be made fairly. USE OF ESTIMATES: The Fund's financial statements are prepared in accordance with U.S. generally accepted accounting principles that require the use of management estimates. Actual results could differ from those estimates. 3. RELATED PARTY FEES The Portfolio retains SSgA Funds Management, Inc. ("SSgA FM"), a subsidiary of State Street Corporation and an affiliate of State Street Bank and Trust Company ("State Street"), as its investment adviser. For such investment advisory services, the Portfolio pays SSgA FM a fee at the annual rate of 0.10% of its average daily net assets. SSgA FM has contractually agreed to cap the total operating expenses of the Fund (not including the pass-through expenses of the Portfolio) on an annual basis at 0.05% of the Fund's average daily net assets until April 30, 2005. For the period ended December 31, 2004, SSgA FM reimbursed the Fund $97,420 under this agreement. There is no agreement in place for SSgA FM to recover operating expenses previously waived or reimbursed. 7 STATE STREET INSTITUTIONAL LIQUID RESERVES FUND NOTES TO FINANCIAL STATEMENTS DECEMBER 31, 2004 State Street serves as the Fund's administrator, custodian and transfer agent. The Fund pays State Street annual fees of $25,000 for administration services, $12,000 for custody and accounting services, and $30,000 for transfer agency services plus transaction fees. ALPS Distributors, Inc. serves as Distributor (the "Distributor") pursuant to a Distribution Agreement with the Trust. The Trust has adopted a plan of distribution pursuant to Rule 12b-1 under the 1940 Act (the "Rule 12b-1 Plan"). Under the Rule 12b-1 Plan, the Fund may compensate financial intermediaries in connection with the distribution of Fund shares and for services provided to the Fund's shareholders. The Rule 12b-1 Plan calls for payments at an annual rate of up to 0.05% of daily average net assets. For the period ended December 31, 2004, the Fund accrued State Street Global Markets LLC, an affiliated company of State Street, $61,668 for services provided to the Fund's shareholders. 4. INDEMNIFICATIONS Like many other companies, the Trust's organizational documents provide that its officers and trustees are indemnified against certain liabilities arising out of the performance of their duties to the Trust. In addition, both in some of its principal service contracts and in the normal course of its business, the Trust enters into contracts that provide indemnifications to other parties for certain types of losses or liabilities. The Trust's maximum exposure under these arrangements in unknown as this could involve future claims against the Trust. 5. SUBSEQUENT EVENT Effective February 1, 2005, ALPS Distributors, Inc. will replace State Street as transfer agent for the Fund. The fees for transfer agent services with ALPS will be materially the same as the fees with State Street. 8 STATE STREET INSTITUTIONAL LIQUID RESERVES FUND NOTES TO FINANCIAL STATEMENTS DECEMBER 31, 2004 GENERAL INFORMATION (UNAUDITED) PROXY VOTING POLICIES AND PROCEDURES AND RECORD The Trust has adopted proxy voting procedures relating to portfolio securities held by the Portfolio. A description of the policies and procedures is available without charge, upon request, by (i) calling (877) 521-4083 or (ii) on the website of the Securities Exchange Commission (the "SEC") at www.sec.gov. Information on how the Portfolio voted proxies relating to portfolio securities during the most recent 12-month period ending June 30 will also be available (i) without charge, upon request, by calling (877) 521-4083 or (ii) on the SEC's website at www.sec.gov. QUARTERLY PORTFOLIO SCHEDULE The Trust files its complete schedule of portfolio holdings with the SEC for the first and third quarters of its fiscal year (as of March and September of each year) on Form N-Q. The Trust's Form N-Q is available on the SEC's website at www.sec.gov. The Trust's Form N-Q may be reviewed and copied at the SEC's Public Reference Room in Washington, D.C. and information on the operation of the Public Reference Room may be obtained by calling 1-800-SEC-0330. The most recent Form N-Q is available without charge, upon request, by calling (877) 521-4083. 9 STATE STREET INSTITUTIONAL LIQUID RESERVES FUND REPORT OF ERNST & YOUNG LLP, INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM To the Board of Trustees of State Street Institutional Investment Trust and Shareholders of State Street Institutional Liquid Reserves Fund: We have audited the accompanying statement of assets and liabilities of the State Street Institutional Liquid Reserves Fund (one of the funds constituting State Street Institutional Investment Trust)(the Fund) as of December 31, 2004, and the related statement of operations, the statement of changes in net assets, and the financial highlights for the period from August 12, 2004 (commencement of operations) to December 31, 2004. These financial statements and financial highlights are the responsibility of the Fund's management. Our responsibility is to express an opinion on these financial statements and financial highlights based on our audit. We conducted our audit in accordance with the standards of the Public Company Accounting Oversight Board (United States). Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements and financial highlights are free of material misstatement. An audit includes consideration of internal control over financial reporting as a basis for designing audit procedures that are appropriate in the circumstances, but not for the purpose of expressing an opinion on the effectiveness of the Fund's internal control over financial reporting. Accordingly, we express no such opinion. An audit also includes examining, on a test basis, evidence supporting the amounts and disclosures in the financial statements and financial highlights, assessing the accounting principles used and significant estimates made by management, and evaluating the overall financial statement presentation. Our procedures included confirmation of securities owned as of December 31, 2004, by correspondence with the custodian. We believe that our audit provides a reasonable basis for our opinion. In our opinion, the financial statements and financial highlights referred to above present fairly, in all material respects, the financial position of the State Street Institutional Liquid Reserves Fund of the State Street Institutional Investment Trust at December 31, 2004, the results of its operations, the changes in its net assets and financial highlights for the period from August 12, 2004 (commencement of operations) to December 31, 2004, in conformity with U.S. generally accepted accounting principles. Ernst & Young LLP Boston, Massachusetts February 11, 2005 10 STATE STREET INSTITUTIONAL LIQUID RESERVES FUND STATE STREET INSTITUTIONAL INVESTMENT TRUST (UNAUDITED) NUMBER OF FUNDS IN OTHER POSITION(S) TERM OF OFFICE FUND COMPLEX DIRECTORSHIPS NAME, ADDRESS AND HELD WITH AND LENGTH OF PRINCIPAL OCCUPATION OVERSEEN BY HELD BY DATE OF BIRTH ("DOB") TRUST TIME SERVED DURING PAST FIVE YEARS TRUSTEE TRUSTEE - --------------------- ----- ----------- ---------------------- ------- ------- INDEPENDENT TRUSTEES: Michael F. Holland Trustee and Term: Indefinite Chairman, Holland & 14 Trustee, State Holland & Company, LLC Chairman of Company L.L.C. Street 375 Park Avenue the Board Elected: 7/99 (investment adviser) Institutional New York, NY 10152 (1995 - present). Investment DOB: 07/08/44 Trust; Director of the Holland Series Fund, Inc.; and Director, The China Fund, Inc. William L. Boyan Trustee Term: Indefinite Trustee of Old Mutual 14 Trustee, State State Street Master Funds South Africa Master Trust Street P.O. Box 5049 Elected: 7/99 (investments) (1997 - Institutional Boston, MA 02206 present); Investment DOB: 01/20/37 Chairman emeritus, Trust; and Children's Trustee, Old Hospital (1984 - present); Mutual South Director, Boston Plan For Africa Master Excellence (non-profit) Trust (1994 - present); President and Chief Operations Officer, John Hancock Mutual Life Insurance Company (1959 - 1999). Mr. Boyan retired in 1999. Rina K. Spence Trustee Term: Indefinite President of SpenceCare 14 Trustee, State 7 Acacia Street International LLC (1998 - Street Cambridge, MA 02138 Elected: 7/99 present); Member of the Institutional DOB: 10/24/48 Advisory Board, Ingenium Investment Corp., (technology company) Trust; Director (2001 - present); Chief of Berkshire Executive Officer, Life Insurance IEmily.com, Company of (internet company) (2000- America; and 2001); Trustee Director, Eastern Enterprise IEmily.com (utilities) (1988 - 2000). Douglas T. Williams Trustee Term: Indefinite Executive Vice President 14 Trustee, State State Street Master Funds of Chase Manhattan Bank, Street P.O. Box 5049 Elected: 7/99 (1987 - 1999). Mr. Williams Insitutional Boston, MA 02206 retired in 1999. Investment DOB:12/23/40 Trust 11 STATE STREET INSTITUTIONAL LIQUID RESERVES FUND STATE STREET INSTITUTIONAL INVESTMENT TRUST (UNAUDITED) NUMBER OF FUNDS IN OTHER POSITION(S) TERM OF OFFICE FUND COMPLEX DIRECTORSHIPS NAME, ADDRESS AND HELD WITH AND LENGTH OF PRINCIPAL OCCUPATION OVERSEEN BY HELD BY DATE OF BIRTH("DOB") TRUST TIME SERVED DURING PAST FIVE YEARS TRUSTEE TRUSTEE - --------------------- ----------- ----------- ---------------------- ------- ------- OFFICERS: Donald A. Gignac President Term: Indefinite Senior Vice President of - - State Street Bank and Trust State Street Bank and Company Elected: 8/03 Trust Company (2002 - 2 Avenue de Lafayette present); Vice President Boston, MA 02111 of State Street Bank and DOB: 06/14/65 Trust Company (1993 to 2002). Karen Gillogly Treasurer Term: Indefinite Vice President of State - - State Street Bank and Trust Street Bank and Trust Company Elected: 9/03 Company (1999- One Federal Street present); Audit Senior Boston, MA 02110 Manager, Ernst & Young DOB: 09/03/66 LLP(1998-1999). Julie A. Tedesco Secretary Term: Indefinite Vice President and Counsel - - State Street Bank and Trust of State Street Bank and Trust Company Elected: 5/00 Company (2000 - present); One Federal Street Counsel of First Data Investor Boston, MA 02110 Services Group, Inc., DOB: 09/03/57 (1994 - 2000). Peter A. Ambrosini Chief Term: Unlimited Senior Principal and Chief - - SSgA Funds Compliance Compliance and Risk Management, Inc. Officer Elected: 5/04 Management Officer, SSgA State Street Financial Funds Management, Inc. and Center State Street Global Advisors One Lincoln Street (2001-present); Managing Boston, MA 02111 Director, DOB: 12/17/43 PricewaterhouseCoopers LLP (1986-2001). The Statement of Additional Information includes additional information about the Trust's Trustees and is available, without charge, upon request, by calling (toll free) 877-521-4083. 12 TRUSTEES Michael F. Holland William L. Boyan Rina K. Spence Douglas T. Williams INVESTMENT ADVISER SSgA Funds Management, Inc. State Street Financial Center One Lincoln Street Boston, MA 02111 ADMINISTRATOR AND CUSTODIAN State Street Bank and Trust Company 225 Franklin Street Boston, MA 02110 INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM Ernst & Young LLP 200 Clarendon Street Boston, MA 02116 LEGAL COUNSEL Ropes & Gray LLP One International Place Boston, MA 02109 TRANSFER AGENT APLS Mutual Funds Services, Inc. 1625 Broadway, Suite 2200 Denver, CO 80202 This report is for shareholder information. This is not a prospectus intended for use in the purchase or sale of shares of beneficial interest. STATE STREET INSTITUTIONAL LIQUID RESERVES FUND State Street Bank and Trust Company P.O. Box 5049 Boston, MA 02206 STATE STREET MONEY MARKET PORTFOLIO ANNUAL REPORT DECEMBER 31, 2004 STATE STREET MONEY MARKET PORTFOLIO PORTFOLIO STATISTICS (UNAUDITED) PORTFOLIO COMPOSITION* DECEMBER 31, 2004 - ---------------------- ----------------- Repurchase Agreements 45.1% Commercial Paper 26.9 Time Deposits 7.0 U.S. Government Agency Obligations 6.6 Bank Note 3.9 Euro Certificate of Deposit 3.9 Medium Term Note 3.9 Yankee Certificate of Deposit 2.6 Other assets less liabilities 0.1 --------- Total 100.0% --------- MATURITY LADDER* DECEMBER 31, 2004 - ---------------- ----------------- 3 Days 52.1% 4-90 Days 44.0 90+ Days 3.9 ---------- Total 100.0% ---------- Average maturity 19 Days * As a percentage of net assets as of the date indicated. The Portfolio's composition will vary over time. 1 STATE STREET MONEY MARKET PORTFOLIO EXPENSE EXAMPLE As a shareholder of the State Street Money Market Portfolio (the "Portfolio"), you incur ongoing costs, which include costs for portfolio management and administrative services, among others. This example is intended to help you understand your ongoing costs (in dollars) of investing in the Portfolio and to compare these costs with the ongoing costs of investing in other mutual funds. The example is based on an investment of $1,000 made at the beginning of the period shown and held for the entire period from August 12, 2004 (commencement of operations) to December 31, 2004. The table below illustrates your Portfolio's costs in two ways: - BASED ON ACTUAL FUND RETURN. This section helps you to estimate the actual expenses that you paid over the period. The "Ending Account Value" shown is derived from the Portfolio's actual return, and the third column shows the dollar amount that would have been paid by an investor who started with $1,000 in the Portfolio. You may use the information here, together with the amount you invested, to estimate the expenses that you paid over the period. To do so, simply divide your account value by $1,000 (for example, an $8,600 account value divided by $1,000 = 8.6), then multiply the result by the number given for the Portfolio under the heading "Expenses Paid During Period". - BASED ON HYPOTHETICAL 5% RETURN. This section is intended to help you compare your Portfolio's costs with those of other mutual funds. It assumes that the Portfolio had a yearly return of 5% before expenses, but that the expense ratio is unchanged. In this case- because the return used is not the Portfolio's actual return- the results do not apply to your investment. The example is useful in making comparisons because the Securities and Exchange Commission requires all mutual funds to calculate expenses based on a 5% return. You can assess your Portfolio's costs by comparing this hypothetical example with the hypothetical examples that appear in shareholder reports of other funds. Period from August 12, 2004 (commencement of operations) to December 31, 2004 BEGINNING ENDING EXPENSES PAID ACCOUNT VALUE ACCOUNT VALUE DURING 8/12/04 12/31/04 PERIOD * ------------- ------------- ------------- BASED ON ACTUAL PORTFOLIO RETURN $1,000.00 $1,006.84 $ 0.39 BASED ON HYPOTHETICAL (5% RETURN BEFORE EXPENSES) $1,000.00 $1,019.01 $ 0.39 * The calculations are based on expenses incurred in the most recent fiscal period of the Portfolio. The Portfolio's annualized average weighted expense ratio as of December 31, 2004 was 0.100%. The dollar amounts shown as "Expenses Paid" are equal to the annualized average weighted expense ratio multiplied by the average account value over the period, multiplied by the number of days in the most recent period (from August 12, 2004 (commencement of operations) to December 31, 2004), then divided by the number of days in the most recent 12-month period. 2 STATE STREET MONEY MARKET PORTFOLIO SCHEDULE OF INVESTMENTS DECEMBER 31, 2004 NAME OF ISSUER INTEREST MATURITY PRINCIPAL AMORTIZED AND TITLE OF ISSUE RATE DATE AMOUNT COST + - ------------------ ---- ---- ------ ------ COMMERCIAL PAPER - 26.85% ABCP CREDIT ARBITRAGE - 6.53% Aspen Funding Corp. 2.470% 03/16/2005 $ 5,000,000 $ 4,975,025 Grampian Funding Ltd. 2.310% 02/04/2005 10,000,000 9,977,994 Lake Constance Funding LLC 2.200% 02/07/2005 10,000,000 9,977,389 ------------- 24,930,408 ------------- ABCP HYBRID - 1.31% Giro Balanced Funding Corp. 2.260% 01/14/2005 5,000,000 4,995,775 ------------- ABCP RECEIVABLES AND SECURITIES - 9.34% CRC Funding LLC 2.300% 01/31/2005 7,500,000 7,485,313 Liberty Street Funding Corp. 2.290% 01/25/2005 10,000,000 9,984,267 Nieuw Amsterdam Receivables 2.500% 03/21/2005 8,259,000 8,214,234 Thunder Bay Funding, Inc. 2.490% 03/14/2005 10,000,000 9,951,000 ------------- 35,634,813 ------------- BANK FOREIGN - 5.23% Alliance & Leicester Plc 1.860% 01/27/2005 10,000,000 9,986,567 Nordea North America, Inc. 2.280% 01/26/2005 10,000,000 9,983,785 ------------- 19,970,352 ------------- FINANCE NON-CAPTIVE CONSUMER - 4.44% General Electric Capital Corp. 1.850% 02/11/2005 10,000,000 9,978,931 General Electric Capital Corp. 1.990% 03/09/2005 7,000,000 6,974,075 16,953,005 ------------- TOTAL COMMERCIAL PAPER 102,484,353 ------------- YANKEE CERTIFICATE OF DEPOSIT - 2.62% BANK FOREIGN - 2.62% UBS AG 1.950% 02/17/2005 10,000,000 10,000,000 ------------- TOTAL YANKEE CERTIFICATE OF DEPOSIT 10,000,000 ------------- EURO CERTIFICATE OF DEPOSIT - 3.93% BANK FOREIGN - 3.93% Societe Generale 1.820% 01/19/2005 15,000,000 15,000,000 ------------- TOTAL EURO CERTIFICATE OF DEPOSIT 15,000,000 ------------- BANK NOTE - 3.93% BANK DOMESTIC - 3.93% U.S. Bank NA 1.920% 02/10/2005 15,000,000 15,000,000 ------------- TOTAL BANK NOTE 15,000,000 ------------- MEDIUM TERM NOTE - 3.93% FINANCE NON-CAPTIVE CONSUMER - 3.93% American Express Credit Corp. (a) 2.510% 01/18/2005 15,000,000 15,005,794 ------------- TOTAL MEDIUM TERM NOTE 15,005,794 ------------- TIME DEPOSITS - 7.02% BANK DOMESTIC - 7.02% Marshall & Ilsley 2.000% 01/03/2005 11,821,000 11,821,000 National City Bank 2.000% 01/03/2005 15,000,000 15,000,000 ------------- TOTAL TIME DEPOSITS 26,821,000 ------------- 3 STATE STREET MONEY MARKET PORTFOLIO SCHEDULE OF INVESTMENTS DECEMBER 31, 2004 NAME OF ISSUER INTEREST MATURITY PRINCIPAL AMORTIZED AND TITLE OF ISSUE RATE DATE AMOUNT COST + - ------------------ ---- ---- ------ ------ U.S. GOVERNMENT AGENCY OBLIGATIONS -- 6.54% Federal National Mortgage Association (a) 2.350% 03/09/2005 $ 15,000,000 $ 14,995,346 Federal National Mortgage Association Discount Notes 1.830% 02/16/2005 10,000,000 9,976,617 ------------- TOTAL U.S. GOVERNMENT AGENCY OBLIGATIONS 24,971,963 ------------- REPURCHASE AGREEMENTS -- 45.11% Bear Stearns Tri Party Repo, dated 12/31/04 (collateralized by Federal Home Loan Mortgage Corporation, 4.500%-8.500% due 04/01/13-11/01/34 and Federal National Mortgage Association, 4.000%-8.000% due 08/01/08-01/01/35 valued at $61,204,538); proceeds $60,011,450 2.290% 01/03/2005 60,000,000 60,000,000 Countrywide Tri Party Repo, dated 12/31/04 (collateralized by Federal Home Loan Mortgage Corporation, 6.000% due 11/01/33 and Federal National Mortgage Association, 4.500% due 05/01/13 valued at $15,300,000); proceeds $15,002,875 2.300% 01/03/2005 15,000,000 15,000,000 Goldman Sachs Tri Party Repo, dated 12/31/04 (collateralized by U.S. Treasury Stripped Principal, zero coupon due 11/15/05 valued at $83,825,641); proceeds $82,197,341 2.240% 01/03/2005 82,182,000 82,182,000 Lehman Brothers Tri Party Repo, dated 12/31/04 (collateralized by Federal Home Loan Bank, 5.750% due 05/15/12 and Federal Home Loan Mortgage Corporation, 2.125% due 11/15/05 valued at $15,303,134); proceeds $15,002,750 2.200% 01/03/2005 15,000,000 15,000,000 ------------- TOTAL REPURCHASE AGREEMENTS 172,182,000 ------------- TOTAL INVESTMENTS -- 99.93% 381,465,110 OTHER ASSETS LESS LIABILITIES -- 0.07% 250,395 ------------- NET ASSETS -- 100.00% $ 381,715,505 ============= (a) Floating Rate Note - Interest rate shown is rate in effect at December 31, 2004. + See Note 2 to the Financial Statements. See Notes to the Financial Statements. 4 STATE STREET MONEY MARKET PORTFOLIO STATEMENT OF ASSETS AND LIABILITIES DECEMBER 31, 2004 ASSETS Investments in unaffiliated issuers, at amortized cost (Note 2) $ 209,283,110 Repurchase agreements (cost $172,182,000) (Note 2) 172,182,000 -------------- 381,465,110 Receivables: Cash 645 Interest receivable 292,991 Receivable from adviser (Note 3) 27,282 -------------- Total assets 381,786,028 LIABILITIES Payables: Administration, custody and transfer agent fees (Note 3) 8,064 Investment advisory fee (Note 3) 22,350 Professional fees 35,200 Accrued expenses and other liabilities 4,909 -------------- Total Liabilities 70,523 -------------- NET ASSETS $ 381,715,505 ============== COMPOSITION OF NET ASSETS Paid-in capital $ 381,715,505 -------------- NET ASSETS $ 381,715,505 ============== See Notes to Financial Statements. 5 STATE STREET MONEY MARKET PORTFOLIO STATEMENT OF OPERATIONS FOR THE PERIOD ENDED DECEMBER 31, 2004* INVESTMENT INCOME Interest $ 2,240,100 ----------- EXPENSES Management fees (Note 3) 123,336 Administration, custody and transfer agent fees (Note 3) 58,064 Professional fees 35,708 Trustees' fees 3,909 Printing fees 2,000 Other expenses 2,909 ----------- Total Expenses 225,926 Less: Fee waivers/reimbursements by investment adviser (Note 3) (102,591) ----------- Total Net Expenses 123,335 ----------- NET INVESTMENT INCOME 2,116,765 ----------- NET INCREASE IN NET ASSETS RESULTING FROM OPERATIONS $ 2,116,765 =========== * The Portfolio commenced operations on August 12, 2004. See Notes to Financial Statements. 6 STATE STREET MONEY MARKET PORTFOLIO STATEMENT OF CHANGES IN NET ASSETS For the Period Ended December 31, 2004* ------------------ INCREASE (DECREASE) IN NET ASSETS FROM: OPERATIONS Net investment income $ 2,116,765 --------------- Net increase in net assets resulting from operations 2,116,765 --------------- CAPITAL TRANSACTIONS Proceeds from contributions 1,620,664,197 Fair value of withdrawals (1,241,065,457) --------------- Net increase in net assets from capital transactions 379,598,740 --------------- TOTAL NET INCREASE IN NET ASSETS 381,715,505 NET ASSETS Beginning of period - --------------- End of period $ 381,715,505 =============== * The Portfolio commenced operations on August 12, 2004. See Notes to Financial Statements. 7 STATE STREET MONEY MARKET PORTFOLIO FINANCIAL HIGHLIGHTS The following table includes selected supplemental data and ratios to average net assets: PERIOD ENDED 12/31/04* --------- SUPPLEMENTAL DATA AND RATIOS: Net assets, end of period (in thousands) $ 381,716 Ratios to average net assets: Gross operating expenses 0.18%** Net operating expenses 0.10%** Net investment income 1.71%** Total return (a) 0.68% - ------------------------------------------------- * The Portfolio commenced operations on August 12, 2004. (a) Results represent past performance and are not indicative of future results. Total return for periods of less than one year are not annualized. ** Annualized. See Notes to Financial Statements. 8 STATE STREET MONEY MARKET PORTFOLIO NOTES TO FINANCIAL STATEMENTS DECEMBER 31, 2004 1. ORGANIZATION The State Street Master Funds (the "Trust") is a registered and diversified open-end investment company, as defined in the Investment Company Act of 1940, as amended (the "1940 Act"), that was organized as a business trust under the laws of the Commonwealth of Massachusetts on July 27, 1999. The Trust comprises seven investment portfolios: the State Street Equity 500 Index Portfolio, the State Street Equity 400 Index Portfolio, the State Street Equity 2000 Index Portfolio, the State Street MSCI(R) EAFE(R) Index Portfolio, the State Street Aggregate Bond Index Portfolio, the State Street Money Market Portfolio, and the State Street U.S. Government Money Market Portfolio. Information presented in these financial statements pertains only to the State Street Money Market Portfolio (the "Portfolio"). At December 31, 2004, only the Portfolio, State Street Equity 500 Index Portfolio and State Street MSCI(R) EAFE(R) Index Portfolio had commenced operations. The Portfolio commenced operations on August 12, 2004. Pursuant to the Trust's Declaration of Trust, the Board of Trustees may issue an unlimited number of non-transferable beneficial interests. The Portfolio's investment objective is to maximize current income to the extent consistent with the preservation of capital and liquidity by investing in dollar denominated securities. 2. SIGNIFICANT ACCOUNTING POLICIES The following is a summary of the significant accounting policies consistently followed by the Portfolio in the preparation of its financial statements. SECURITY VALUATION: As permitted under Rule 2a-7 of the 1940 Act and certain conditions therein, securities are valued initially at cost and thereafter assume a constant amortization to maturity of any discount or premium. SECURITIES TRANSACTIONS, INVESTMENT INCOME AND EXPENSES: Securities transactions are recorded on a trade date basis. Interest income is recorded daily on the accrual basis and includes amortization of premium and accretion of discount on investments. Realized gains and losses from securities transactions are recorded on the basis of identified cost. Expenses are accrued daily. All of the net investment income and realized gains and losses from the security transactions of the Portfolio are allocated pro rata among the partners in the Portfolio based on each partner's daily ownership percentage. FEDERAL INCOME TAXES: The Portfolio is not required to pay federal income taxes on its net investment income and net capital gains because it is treated as a partnership for federal income tax purposes. All interest, gains and losses of the Portfolio are deemed to have been "passed through" to the Portfolio's partners in proportion to their holdings in the Portfolio, regardless of whether such items have been distributed by the Portfolio. Each partner is responsible for tax liability based on its distributive share; therefore, no provision has been made for federal income taxes. 9 STATE STREET MONEY MARKET PORTFOLIO NOTES TO FINANCIAL STATEMENTS DECEMBER 31, 2004 At December 31, 2004, the cost of investments for federal income tax purposes was the same as the cost for financial reporting purposes. REPURCHASE AGREEMENTS: A repurchase agreement customarily obligates the seller at the time it sells securities to the Portfolio to repurchase the securities at a mutually agreed upon price and time which, in the case of the Portfolio's transactions, is within seven days. The total amount received by the Portfolio on repurchase is calculated to exceed the price paid by the Portfolio, reflecting an agreed-upon market rate of interest for the period of time to the settlement date, and is not necessarily related to the interest rate on the underlying securities. The underlying securities are ordinarily United States Government securities, but may consist of other securities in which the Portfolio is permitted to invest. Repurchase agreements are fully collateralized at all times. The use of repurchase agreements involves certain risks. For example, if the seller of securities under a repurchase agreement defaults on its obligation to repurchase the underlying securities (as a result of its bankruptcy or otherwise) the Portfolio will seek to dispose of such securities; this action could involve costs or delays. The Portfolio may enter into repurchase agreements maturing within seven days with domestic dealers, banks and other financial institutions deemed to be creditworthy by SSgA Funds Management, Inc. ("SSgA FM"), a subsidiary of State Street Corporation and an affiliate of State Street Bank and Trust Company ("State Street"). EXPENSE ALLOCATION: Certain expenses are applicable to multiple Portfolios and Funds. Expenses directly attributable to a Portfolio or Fund are charged to that Portfolio or Fund. Expenses of the Trust that are not directly attributed to a Portfolio are allocated among the Portfolios, on the basis of relative net assets, except where a more appropriate allocation of expenses to each of the Portfolios can otherwise be made fairly. USE OF ESTIMATES: The Portfolio's financial statements are prepared in accordance with U.S. generally accepted accounting principles that require the use of management estimates. Actual results could differ from those estimates. 3. RELATED PARTY FEES The Portfolio has entered into an investment advisory agreement with SSgA FM (the "Adviser"). The Adviser directs the investments of the Portfolio in accordance with its investment objective, policies, and limitations. In compensation for the Adviser's services as investment adviser, the Portfolio pays the Adviser an annual fee of 0.10% of the Portfolio's average daily net assets. The Adviser has contractually agreed to cap the total operating expenses of the Portfolio at 0.10% of the Portfolio's average daily net assets until April 30, 2005. For the period ended December 31, 2004, SSgA FM reimbursed the Portfolio $102,591 under this agreement. There is no agreement in place for SSgA FM to recover operating expenses previously waived or reimbursed. 10 STATE STREET MONEY MARKET PORTFOLIO NOTES TO FINANCIAL STATEMENTS DECEMBER 31, 2004 State Street is the administrator, custodian and transfer agent for the Portfolio. In compensation for State Street's services as administrator, custodian and transfer agent, the Portfolio pays State Street an annual fee of the average daily net assets as follows: Annual percentage of Asset Levels average daily net assets - ------------ -------------------------- First $200 Million 0.04% Next $200 Million 0.03 Thereafter 0.02 Minimum annual fee: Assets of $500 million and less $150,000 Assets of $500 million - $2 billion $200,000 with 0.01% waiver State Street has contractually agreed to waive 0.01% of its fees on an annual basis when the Portfolio's assets are between $500 million and $2 billion. For the period ended December 31, 2004, no amounts were waived under this agreement. 4. TRUSTEES' FEES The Trust pays each trustee who is not an officer or employee of SSgA FM or State Street $2,500 for each meeting of the Board of Trustees and an additional $500 for each telephonic meeting attended. The Trust also pays each trustee an annual retainer of $20,000. Each trustee is reimbursed for out-of-pocket and travel expenses. The Portfolio reimburses State Street or its affiliates for its pro-rata share of the total fees. 5. INDEMNIFICATIONS Like many other companies, the Trust's organizational documents provide that its officers and trustees are indemnified against certain liabilities arising out of the performance of their duties to the Trust. In addition, both in some of its principal service contracts and in the normal course of its business, the Trust enters into contracts that provide indemnifications to other parties for certain types of losses or liabilities. The Trust's maximum exposure under these arrangements in unknown as this could involve future claims against the Trust. 11 STATE STREET MONEY MARKET PORTFOLIO NOTES TO FINANCIAL STATEMENTS DECEMBER 31, 2004 GENERAL INFORMATION (UNAUDITED) PROXY VOTING POLICIES AND PROCEDURES AND RECORD The Trust has adopted proxy voting procedures relating to portfolio securities held by the Portfolio. A description of the policies and procedures is available without charge, upon request, by (i) calling (877) 521-4083 or (ii) on the website of the Securities and Exchange Commission (the "SEC") at www.sec.gov. Information on how the Portfolio voted proxies relating to portfolio securities during the most recent 12-month period ending June 30 will also be available (i) without charge, upon request, by calling (877) 521-4083 or (ii) on the SEC's website at www.sec.gov. QUARTERLY PORTFOLIO SCHEDULE The Trust files its complete schedule of portfolio holdings with the SEC for the first and third quarters of its fiscal year (as of March and September of each year) on Form N-Q. The Trust's Form N-Q is available on the SEC's website at www.sec.gov. The Trust's Form N-Q may be reviewed and copied at the SEC's Public Reference Room in Washington, D.C. and information on the operation of the Public Reference Room may be obtained by calling 1-800-SEC-0330. The most recent Form N-Q is available without charge, upon request, by calling (877) 521-4083. 12 STATE STREET MONEY MARKET PORTFOLIO REPORT OF ERNST & YOUNG LLP, INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM To the Board of Trustees of State Street Master Funds and Owners of Beneficial Interest of State Street Money Market Portfolio: We have audited the accompanying statement of assets and liabilities, including the portfolio of investments, of the State Street Money Market Portfolio (one of the portfolios constituting State Street Master Funds)(the Portfolio) as of December 31, 2004, and the related statement of operation, the statement of changes in net assets, and financial highlights for the period from August 12, 2004 (commencement of operations) to December 31, 2004. These financial statements and financial highlights are the responsibility of the Portfolio's management. Our responsibility is to express an opinion on these financial statements and financial highlights based on our audit. We conducted our audit in accordance with the standards of the Public Company Accounting Oversight Board (United States). Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements and financial highlights are free of material misstatement. An audit includes consideration of internal control over financial reporting as a basis for designing audit procedures that are appropriate in the circumstances, but not for the purpose of expressing an opinion on the effectiveness of the Portfolio's internal control over financial reporting. Accordingly, we express no such opinion. An audit also includes examining, on a test basis, evidence supporting the amounts and disclosures in the financial statements and financial highlights, assessing the accounting principles used and significant estimates made by management, and evaluating the overall financial statement presentation. Our procedures included confirmation of securities owned as of December 31, 2004, by correspondence with the custodian and brokers. We believe that our audit provides a reasonable basis for our opinion. In our opinion, the financial statements and financial highlights referred to above present fairly, in all material respects, the financial position of the State Street Money Market Portfolio of State Street Master Funds at December 31, 2004, the results of its operations, the changes in its net assets, and its financial highlights for the period from August 12, 2004 (commencement of operations) to December 31, 2004, in conformity with U.S. generally accepted accounting principles. Ernst & Young LLP Boston, Massachusetts February 11, 2005 13 STATE STREET MONEY MARKET PORTFOLIO STATE STREET MASTER FUNDS (UNAUDITED) NUMBER OF FUNDS IN OTHER POSITION(S) TERM OF OFFICE FUND COMPLEX DIRECTORSHIPS NAME, ADDRESS AND HELD WITH AND LENGTH OF PRINCIPAL OCCUPATION OVERSEEN BY HELD BY DATE OF BIRTH ("DOB") TRUST TIME SERVED DURING PAST FIVE YEARS TRUSTEE TRUSTEE - --------------------- ----- ----------- ---------------------- ------- ------- INDEPENDENT TRUSTEES: Michael F. Holland Trustee and Term:Indefinite Chairman, Holland & 14 Trustee, State Holland & Company, LLC Chairman of Company L.L.C. Street 375 Park Avenue the Board Elected: 7/99 (investment adviser) Institutional New York, NY 10152 (1995 - present). Investment DOB: 07/08/44 Trust; Director of the Holland Series Fund, Inc.; and Director, The China Fund, Inc. William L. Boyan Trustee Term:Indefinite Trustee of Old Mutual 14 Trustee, State State Street Master Funds South Africa Master Trust Street P.O. Box 5049 Elected: 7/99 (investments) (1997 - Institutional Boston, MA 02206 present); Investment DOB: 01/20/37 Chairman emeritus, Trust; and Children's Trustee, Old Hospital (1984 - present); Mutual South Director, Boston Plan For Africa Master Excellence (non-profit) Trust (1994 - present); President and Chief Operations Officer, John Hancock Mutual Life Insurance Company (1959 - 1999). Mr. Boyan retired in 1999. Rina K. Spence Trustee Term:Indefinite President of SpenceCare 14 Trustee, State 7 Acacia Street International LLC (1998 - Street Cambridge, MA 02138 Elected: 7/99 present); Member of the Institutional DOB: 10/24/48 Advisory Board, Ingenium Investment Corp., (technology Trust; Director company) of Berkshire (2001 - present); Chief Life Insurance Executive Officer, Company of IEmily.com, America; and (internet company) (2000- Director, 2001); Trustee IEmily.com Eastern Enterprise (utilities) (1988 - 2000). Douglas T. Williams Trustee Term:Indefinite Executive Vice President 14 Trustee, State State Street Master Funds of Chase Manhattan Bank, Street P.O. Box 5049 Elected: 7/99 (1987 - 1999). Mr. Williams Insitutional Boston, MA 02206 retired in 1999. Investment DOB:12/23/40 Trust 14 STATE STREET MONEY MARKET PORTFOLIO STATE STREET MASTER FUNDS (UNAUDITED) NUMBER OF FUNDS IN OTHER POSITION(S) TERM OF OFFICE FUND COMPLEX DIRECTORSHIPS NAME, ADDRESS AND HELD WITH AND LENGTH OF PRINCIPAL OCCUPATION OVERSEEN BY HELD BY DATE OF BIRTH ("DOB") TRUST TIME SERVED DURING PAST FIVE YEARS TRUSTEE TRUSTEE - --------------------- ----- ----------- ---------------------- ------- ------- OFFICERS: Donald A. Gignac President Term:Indefinite Senior Vice President of - - State Street Bank and Trust State Street Bank and Company Elected: 8/03 Trust Company (2002 - 2 Avenue de Lafayette present); Vice President Boston, MA 02111 of State Street Bank and DOB: 06/14/65 Trust Company (1993 to 2002). Karen Gillogly Treasurer Term:Indefinite Vice President of State - - State Street Bank and Trust Street Bank and Trust Company Elected: 9/03 Company (1999- One Federal Street present); Audit Senior Boston, MA 02110 Manager, Ernst & Young DOB: 09/03/66 LLP(1998-1999). Julie A. Tedesco Secretary Term:Indefinite Vice President and Counsel - - State Street Bank and Trust of State Street Bank and Company Trust One Federal Street Elected: 5/00 Company (2000 - present); Boston, MA 02110 Counsel of First Data DOB: 09/03/57 Investor Services Group, Inc., (1994 - 2000). Peter A. Ambrosini Chief Term: Unlimited Senior Principal and Chief - - SSgA Funds Compliance Compliance and Risk Management, Inc. Officer Elected: 5/04 Management Officer, SSgA State Street Financial Funds Management, Inc. and Center State Street Global Advisors One Lincoln Street (2001-present); Managing Boston, MA 02111 Director, DOB: 12/17/43 PricewaterhouseCoopers LLP (1986-2001). The Statement of Additional Information includes additional information about the Trust's Trustees and is available, without charge, upon request, by calling (toll free) 877-521-4083. 15 TRUSTEES Michael F. Holland William L. Boyan Rina K. Spence Douglas T. Williams INVESTMENT ADVISER SSgA Funds Management, Inc. State Street Financial Center One Lincoln Street Boston, MA 02111 ADMINISTRATOR, CUSTODIAN AND TRANSFER AGENT State Street Bank and Trust Company 225 Franklin Street Boston, MA 02110 INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM Ernst & Young LLP 200 Clarendon Street Boston, MA 02116 LEGAL COUNSEL Ropes & Gray LLP One International Place Boston, MA 02109 This report is for shareholder information. This is not a prospectus intended for use in the purchase or sale of shares of beneficial interest. STATE STREET MONEY MARKET PORTFOLIO State Street Bank and Trust Company P.O. Box 5049 Boston, MA 02206 ITEM 2. CODE OF ETHICS. As of the end of the period, December 31, 2004, State Street Institutional Investment Trust (the "Trust" or "Registrant") has adopted a code of ethics, as defined in Item 2(b) of Form N-CSR, that applies to the Trust's principal executive officer and principal financial officer. The Trust has not made any amendments to its code of ethics during the covered period. The Trust has not granted any waivers from any provisions of the code of ethics during the covered period. A copy of the Trust's code of ethics is filed as Exhibit 12(a)(1) to this Form N-CSR. ITEM 3. AUDIT COMMITTEE FINANCIAL EXPERT. The Trust's Board of Trustees (the "Board") has determined that the Trust has the following "audit committee financial experts" as defined in Item 3 of Form N-CSR serving on its Audit Committee: Messrs. Michael F. Holland, William L. Boyan and Douglas T. Williams and Ms. Rina K. Spence. Each of the audit committee financial experts is "independent" for purposes of this Item 3. ITEM 4. PRINCIPAL ACCOUNTANT FEES AND SERVICES. (a) Audit Fees For the fiscal years ended December 31, 2004 and December 31, 2003, the aggregate audit fees billed for professional services rendered by Ernst & Young LLP ("E&Y"), the Trust's principal accountant, for the audit of the Trust's annual financial statements and services normally provided by E&Y in connection with the Trust's statutory and regulatory filings or engagement were $36,000 and $20,000, respectively. (b) Audit-Related Fees For the fiscal years ended December 31, 2004 and December 31, 2003, there were no fees for assurance and related services by E&Y reasonably related to the performance of the audit of the Trust's financial statements that were not reported under (a) of this Item. (c) Tax Fees For the fiscal years ended December 31, 2004 and December 31, 2003, the aggregate tax fees billed for professional services rendered by E&Y for tax compliance, tax advice, and tax planning were $10,000 and $10,000, respectively. Such tax services included the review of income and excise tax returns for the Trust. (d) All Other Fees For the fiscal years ended December 31, 2004 and December 31, 2003, there were no fees billed for professional services rendered by E&Y for products and services provided by E&Y to the Trust, other than the services reported in (a) through (c). For the fiscal years ended December 31, 2004 and December 31, 2003, there were no fees billed for professional services rendered by E&Y for products and services provided by E&Y to SSgA Funds Management, Inc. (the "Adviser") and any entity controlling, controlled by, or under common control with the Adviser that provides ongoing services to the Trust that (i) relate directly to the operations and financial reporting of the Trust and (ii) were pre-approved by the Trust's audit committee. (e)(1) Audit Committee Pre-Approval Policies and Procedures The Trust's Audit Committee Charter states the following with respect to pre-approval procedures: "Pre-Approval Requirements. Before the independent accountants are engaged by the Trust to render audit or non-audit services, either: 1. The Audit Committee shall pre-approve all auditing services and permissible non-audit services (e.g., tax services) provided to the Trust. The Audit Committee may delegate to one or more of its members the authority to grant pre-approvals. Any decision of any member to whom authority is delegated under this section shall be presented to the full Audit Committee at its next regularly scheduled meeting; or 2. The engagement to render the auditing service or permissible non-audit service is entered into pursuant to pre-approval policies and procedures established by the Audit Committee. Any such policies and procedures must (1) be detailed as to the particular service and (2) not involve any delegation of the Audit Committee's responsibilities to the investment adviser. The Audit Committee must be informed of each service entered into pursuant to the policies and procedures. A copy of any such policies and procedures shall be attached as an exhibit to the Audit Committee Charter. De Minimis Exceptions to Pre-Approval Requirements. Pre-Approval for a service provided to the Trust other than audit, review or attest services is not required if: (1) the aggregate amount of all such non-audit services provided to the Trust constitutes not more than 5 percent of the total amount of revenues paid by the Trust to the independent accountants during the fiscal year in which the non-audit services are provided; (2) such services were not recognized by the Trust at the time of the engagement to be non-audit services; and (3) such services are promptly brought to the attention of the Audit Committee and are approved by the Audit Committee or by one or more members of the Audit Committee to whom authority to grant such approvals has been delegated by the Audit Committee prior to the completion of the audit. Pre-Approval of Non-Audit Services Provided to the Adviser and Certain Control Persons. The Audit Committee shall pre-approve any non-audit services proposed to be provided by the independent accountants to (a) the investment adviser and (b) any entity controlling, controlled by, or under common control with the investment adviser that provides ongoing services to the Trust, if the independent accountants' engagement with the investment adviser or any such control persons relates directly to the operations and financial reporting of the Trust. It shall be the responsibility of the independent accountants to notify the Audit Committee of any non-audit services that need to be pre-approved. Application of De Minimis Exception: The De Minimis exception set forth above applies to pre-approvals under this Section as well, except that the "total amount of revenues" calculation is based on the total amount of revenues paid to the independent accountants by the Trust and any other entity that has its services approved under this Section (i.e., the investment adviser or any control person)." (e)(2) Percentages of Services None of the services described in paragraphs (b) through (d) of this Item were performed in reliance on paragraph (c)(7)(i)(C) of Rule 2-01 of Regulation S-X during the period of time for which such rule was effective. (f) Not applicable. (g) Total Fees Paid By Adviser and Certain Affiliates For the fiscal years ended December 31, 2004 and December 31, 2003, the aggregate non-audit fees billed by E&Y for services rendered to the Trust and the Adviser and any entity controlling, controlled by, or under common control with the Adviser that provided ongoing services to the Trust were $4,132,210 and $4,730,732, respectively. (h) E&Y notified the Trust's Audit Committee of all non-audit services that were rendered by E&Y to the Adviser and any entity controlling, controlled by, or under common control with the Adviser that provides services to the Trust, which services were not required to be pre-approved pursuant to paragraph (c)(7)(ii) of Rule 2-01 of Regulation S-X, allowing the Trust's Audit Committee to consider whether such services were compatible with maintaining E&Y's independence. ITEM 5. AUDIT COMMITTEES OF LISTED REGISTRANTS. Not applicable to the Registrant. ITEM 6. SCHEDULE OF INVESTMENTS. Not applicable to the Registrant. ITEM 7. DISCLOSURE OF PROXY VOTING POLICIES AND PROCEDURES FOR CLOSED-END MANAGEMENT INVESTMENT COMPANIES. Not applicable to the Registrant. ITEM 8. PORTFOLIO MANAGERS OF CLOSED-END MANAGEMENT INVESTMENT COMPANIES Not applicable to the Registrant. ITEM 9. PURCHASES OF EQUITY SECURITIES BY CLOSED-END MANAGEMENT INVESTMENT COMPANY AND AFFILIATED PURCHASERS. Not applicable to the Registrant. ITEM 10. SUBMISSION OF MATTERS TO A VOTE OF SECURITY HOLDERS. Not applicable to the Registrant. ITEM 11. CONTROLS AND PROCEDURES. (a) The Trust's principal executive officer and principal financial officer have concluded that the Trust's disclosure controls and procedures (as defined in Rule 30a-3(c) under the Investment Company Act of 1940, as amended (the "1940 Act")) are effective, as of a date within 90 days of the filing date of the report that includes the disclosure required by this paragraph, based on their evaluation of these controls and procedures required by Rule 30a-3(b) under the 1940 Act and Rules 13a-15(b) or 15d-15(b) under the Securities Exchange Act of 1934. (b) There were no changes in the Trust's internal control over financial reporting (as defined in Rule 30a-3(d) under the 1940 Act) that occurred during the Trust's second fiscal quarter covered by this Form N-CSR filing that has materially affected, or is reasonably likely to materially affect, the Trust's internal control over financial reporting. ITEM 12. EXHIBITS. (a)(1) Code of Ethics referred to in Item 2. (a)(2) Certifications of principal executive officer and principal financial officer of the Trust as required by Rule 30a-2(a) under the 1940 Act. (b) Certifications of principal executive officer and principal financial officer of the Trust as required by Rule 30a-2(b) under the 1940 Act. 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): State Street Institutional Investment Trust By: /s/Donald A. Gignac ----------------------------------------------------- Donald A. Gignac President By: /s/Karen D. Gillogly ----------------------------------------------------- Karen D. Gillogly Treasurer Date: March 2, 2005 Pursuant to the requirements of the Securities Exchange Act of 1934 and the Investment Company Act of 1940, this report has been signed below by the following persons on behalf of the Registrant and in the capacities and on the dates indicated. By: /s/Donald A. Gignac ----------------------------------------------------- Donald A. Gignac President By: /s/Karen D. Gillogly ----------------------------------------------------- Karen D. Gillogly Treasurer Date: March 2, 2005