STT State Street Corporation

State Street Corporation today announced a quarterly dividend of $.20 per share, payable October 16, 2006, to stockholders of record as of October 2, 2006. Following today's action, the quarterly dividend rate is 11% higher than a year ago. 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 $10.9 trillion in assets under custody and $1.5 trillion in assets under management (as of June 30, 2006), State Street operates in 26 countries and more than 100 geographic markets worldwide and employs 21,675 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.