Attached files

file filename
10-Q - FORM 10-Q - STATE STREET CORPd10q.htm
EX-32 - SECTION 1350 CERTIFICATIONS - STATE STREET CORPdex32.htm
EX-12 - RATIOS OF EARNINGS TO FIXED CHARGES - STATE STREET CORPdex12.htm
EX-31.1 - CERTIFICATION OF CHAIRMAN AND CHIEF EXECUTIVE OFFICER - STATE STREET CORPdex311.htm
EX-31.2 - CERTIFICATION OF CHIEF FINANCIAL OFFICER - STATE STREET CORPdex312.htm

EXHIBIT 15

Independent Registered Public Accounting Firm’s Acknowledgement Letter

The Shareholders and Board of Directors

State Street Corporation

We are aware of the incorporation by reference in Registration Statements (Form S-3: Nos. 333-157882 and 333-155672, and Form S-8: Nos. 333-100001, 333-99989, 333-46678, 333-36793, 333-36409, 333-135696 and 333-160171), of our report dated November 6, 2009 relating to the unaudited consolidated interim financial statements of State Street Corporation that are included in its Form 10-Q for the quarter ended September 30, 2009.

Under Rule 436(c) of the 1933 Act, our report is not a part of the registration statements prepared or certified by accountants within the meaning of Section 7 or 11 of the 1933 Act.

LOGO

Boston, Massachusetts

November 6, 2009