Standard & Poor's Announces Changes to U.S. Indices

NEW YORK, April 7, 2011 /PRNewswire/ -- S&P SmallCap 600 constituent Oil States International Inc. (NYSE: OIS) will replace NewAlliance Bancshares Inc. (NYSE: NAL) in the S&P MidCap 400 index, and LivePerson Inc. (NASD: LPSN) will replace Oil States International in the S&P SmallCap 600 index after the close of trading on Thursday, April 14, 2011. S&P MidCap 400 constituent First Niagara Financial Group Inc. (NASD: FNFG) is acquiring NewAlliance in a deal expected to be completed on or about that date pending final approvals.

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

Oil States International provides specialty products and services to the oil and gas drilling and production companies. Headquartered in Houston, TX, the company will be added to the S&P MidCap 400 GICS (Global Industry Classification Standard) Oil & Gas Equipment & Services Sub-Industry index.

LivePerson provides online engagement solutions that facilitate real-time assistance and advice. Headquartered in New York, NY, the company will be added to the S&P SmallCap 600 GICS Internet Software & Services Sub-Industry index.

Following is a summary of the changes:

S&P MIDCAP 400 INDEX  – April 14, 2011
	COMPANY	GICS ECONOMIC SECTOR	GICS SUB-INDUSTRY
ADDED	Oil States International	Energy	Oil & Gas Equipment & Services
DELETED	NewAlliance	Financials	Thrifts & Mortgage Finance

S&P SMALLCAP 600 INDEX  – April 14, 2011
	COMPANY	GICS ECONOMIC SECTOR	GICS SUB-INDUSTRY
ADDED	LivePerson	Information Technology	Internet Software & Services
DELETED	Oil States International	Energy	Oil & Gas Equipment & Services

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

[phone]

SOURCE Standard & Poor's

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