SOURCE: Investors Financial Services Corp.

January 10, 2007 16:15 ET

Investors Financial Services Corp. Announces Webcast of Fourth Quarter Earnings Conference Call

BOSTON, MA -- (MARKET WIRE) -- January 10, 2007 -- Investors Financial Services Corp. (NASDAQ: IFIN) will host an Internet broadcast of its fourth quarter earnings conference call on Wednesday, January 24, 2007 at 5:00 p.m. ET following the release of the Company's quarterly results. The call will be accessible from Investors Financial's home page at www.ibtco.com and at (719) 457-2625; confirmation code 8301249. Recorded replays of the earnings conference call will be available on the website and by telephone at (719) 457-0820; confirmation code 8301249.

Investors Financial Services Corp. provides services for a variety of financial asset managers including fund complexes, investment advisors, hedge funds, banks and insurance companies. The Company's wholly owned subsidiary, Investors Bank & Trust Company, provides core services including global custody, multicurrency accounting, fund administration and middle office outsourcing as well as value-added services including foreign exchange, cash management, securities lending and investment advisory services. Offices are located in the United States, Canada, Cayman Islands, Ireland, the United Kingdom and Luxembourg. Visit Investors Financial Services Corp. on the web at www.ibtco.com.

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