STT State Street Corporation

State Street Corporation today increased its quarterly dividend $0.01 per share, to $.18 per share, payable July 15, 2005, to stockholders of record as of July 1, 2005. Following today's action, the quarterly dividend rate is 13% 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 $9.5 trillion in assets under custody and $1.4 trillion in assets under management as of March 31, 2005, State Street operates in 25 countries and more than 100 markets worldwide. For more information, visit State Street's web site at www.statestreet.com.