STT State Street Corporation

In light of the news regarding State Street Corporation�s (NYSE: STT) participation in the TARP Capital Purchase Program, the company will release its third-quarter 2008 financial results before the market opens tomorrow, Wednesday October 15, 2008, followed by an Internet broadcast of its earnings conference call at 7:30 a.m. EDT. The call will be accessible on State Street's investor relations home page, at www.statestreet.com/stockholder, and by telephone at +1 706/679-5594 (Conference ID #61961747). Recorded replays of the earnings conference call will be available on the web site, and by telephone at +1 706/645-9291 (Conference ID#61961747), beginning two hours after the call�s completion. The telephone replay will be available for approximately two weeks following the conference call. The press release announcing third-quarter 2008 financial results, presentation materials referred to on the conference call and additional financial information will be available on State Street�s website, at www.statestreet.com/stockholder, under �Investor Information�Latest News�, ��Annual Reports and Financial Trends�Financial Trends� and ��Investor Events and Presentations� beginning prior to the scheduled Internet broadcast of the conference call. State Street Corporation (NYSE: STT) is the world's leading provider of financial services to institutional investors including investment servicing, investment management and investment research and trading. With $15 trillion in assets under custody and $2 trillion in assets under management at June 30, 2008, State Street operates in 26 countries and more than 100 geographic markets worldwide and employs 28,700 worldwide. For more information, visit State Street�s web site at www.statestreet.com or call 877/639-7788 [NEWS STT] toll-free in the United States and Canada, or +1 678/999-4577 outside those countries.