State Street Corporation Announces Release of 2006 Annual and Fourth-Quarter Results on January 17, 2007

December 27, 2006

BOSTON--(BUSINESS WIRE)--

State Street Corporation (NYSE: STT) will release its 2006 annual and fourth-quarter results followed by an Internet broadcast of it's earnings conference call on Wednesday, January 17, 2007, at 9:30 a.m. EST. The call will be accessible on State Street's investor relations home page, at www.statestreet.com/stockholder, and by telephone at +1 719/457-2680 (Confirmation Code 4193234). Recorded replays of the earnings conference call will be available on the web site, and by telephone at +1 402/220-4230, beginning at 2:00 p.m. that day.

State Street Corporation (NYSE: STT) is the world's leading specialist in providing institutional investors with investment servicing, investment management and investment research and trading. With $11.3 trillion in assets under custody and $1.6 trillion in assets under management (as of September 30, 2006), State Street operates in 26 countries and more than 100 geographic markets worldwide and employs 21,500 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.

Source: State Street Corporation

Contact: State Street Corporation S. Kelley MacDonald +1 617/664-3477 or Media: Hannah Grove +1 617/664-3377