Standard & Poor's Announces Change to U.S. Index

NEW YORK, March 29, 2011 /PRNewswire/ -- BlackRock Inc. (NYSE: BLK) will replace Genzyme Corp. (NASD: GENZ) in the S&P 500 index after the close of trading on Friday, April 1, 2011. S&P Global 1200 constituent Sanofi-aventis (NYSE: SNY) is acquiring Genzyme in a deal expected to be completed soon, pending final conditions.

Standard & Poor's will monitor this transaction, and post any relevant updates on its website: www.standardandpoors.com.  

BlackRock is a publicly owned investment manager. Headquartered in New York, NY, the company will be added to the S&P 500 GICS (Global Industry Classification Standard) Asset Management & Custody Banks Sub-Industry index.

Following is a summary of the change:

For more information about S&P Indices, please visit www.standardandpoors.com/indices.  

About S&P Indices

S&P Indices, the world's leading index provider, maintains a wide variety of investable and benchmark indices to meet an array of investor needs. Over $1.25 trillion is directly indexed to Standard & Poor's family of indices, which includes the S&P 500, the world's most followed stock market index, the S&P/Case-Shiller Home Price Indices, the leading measure of U.S. home prices, the S&P Global BMI, an index with approximately 11,000 constituents, the S&P GSCI, the industry's most closely watched commodities index, and the S&P National AMT-Free Municipal Bond Index, the premier investable index for U.S. municipal bonds. For more information, please visit www.standardandpoors.com/indices.

For more information contact:
David M. Blitzer, Ph.D.
Managing Director & Chairman of the Index Committee
(212) 438-3907

SOURCE Standard & Poor's

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