STT State Street Corporation

State Street Corporation announced today that on Tuesday, February 7, 2006, at 12:30 p.m. EST, it will webcast a presentation to investors and analysts by Ronald E. Logue, chief executive officer, Edward J. Resch, executive vice president and chief financial officer, Jay L. Hooley, executive vice president and head of global investment servicing and William W. Hunt, executive vice president, president and chief executive officer of SSgA. The presentation will be accessible, in listen-only mode, on State Street's investor relations home page, at www.statestreet.com/stockholder, and via telephone, at +1 719/457-2727 and 800/474-8920 (confirmation code 8294690). Recorded replays of the presentation will be available on the web site and by telephone +1 719/457-0820 and 1 888/203-1112 (confirmation code 8294690) beginning at 5:00 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 services. With $10.1 trillion in assets under custody and $1.4 trillion in assets under management at December 31, 2005, State Street operates in 26 countries and more than 100 geographic markets worldwide and employs 20,965 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 +1 202/266-3340 outside those countries.