NEW YORK, Feb. 22 /PRNewswire/ -- S&P MidCap 400 constituent Helmerich & Payne Inc. (NYSE:HP) will replace IMS Health Inc. (NYSE:RX) in the S&P 500 index, S&P SmallCap 600 constituent Prosperity Bancshares Inc. (NASDAQ:PRSP) will replace Helmerich & Payne in the S&P MidCap 400, and Interactive Intelligence Inc. (NASDAQ:ININ) will replace Prosperity Bancshares in the S&P SmallCap 600 index after the close of trading on Friday, February 26. IMS Health is being acquired by affiliates of TPG Capital L.P. and the Canada Pension Plan Investment Board in a deal expected to be completed on or about that date, pending final conditions. Standard & Poor's will monitor this transaction, and post any relevant updates on its website: http://www.standardandpoors.com/. Helmerich & Payne engages in the contract drilling of oil and gas wells. Headquartered in Tulsa, OK, the company will be added to the S&P 500 GICS (Global Industry Classification Standard) Oil & Gas Drilling Sub-Industry index. Prosperity Bancshares provides retail and commercial banking services. Headquartered in Houston, TX, the company will be added to the S&P MidCap 400 GICS Regional Banks Sub-Industry index. Interactive Intelligence provides software application suites for voice over Internet protocol (VoIP) business communications. Headquartered in Indianapolis, IN, the company will be added to the S&P SmallCap 600 GICS Application Software Sub-Industry index. Following is a summary of the changes: S&P 500 INDEX - February 26, 2010 GICS ECONOMIC GICS SUB- COMPANY SECTOR INDUSTRY ------- ------------- --------- Helmerich & Oil & Gas ADDED Payne Energy Drilling ----- ---------- ------ ---------- IMS Health Care DELETED Health Health Care Technology ------- ------ ----------- ----------- S&P MIDCAP 400 INDEX - February 26, 2010 GICS ECONOMIC GICS SUB- COMPANY SECTOR INDUSTRY ------- ------------- --------- Prosperity Regional ADDED Bancshares Financials Banks ----- ----------- ---------- --------- Helmerich & Oil & Gas DELETED Payne Energy Drilling ------- ---------- ------ ---------- S&P SMALLCAP 600 INDEX - February 26, 2010 GICS ECONOMIC GICS SUB- COMPANY SECTOR INDUSTRY ------- ------------- --------- Interactive Information Application ADDED Intelligence Technology Software ----- ------------ ------------ ------------ Prosperity Regional DELETED Bancshares Financials Banks ------- ----------- ---------- --------- For more information about S&P Indices, please visit http://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 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 Global 1200, a composite index comprised of seven regional and country headline indices, the S&P Global BMI, an index with approximately 11,000 constituents, and the S&P GSCI, the industry's most closely watched commodities index. For more information, please visit http://www.standardandpoors.com/indices. About Standard & Poor's Standard & Poor's, a subsidiary of The McGraw-Hill Companies (NYSE:MHP), is the world's foremost provider of independent credit ratings, indices, risk evaluation, investment research and data. With offices in 23 countries and markets, Standard & Poor's is an essential part of the world's financial infrastructure and has played a leading role for 150 years in providing investors with the independent benchmarks they need to feel more confident about their investment and financial decisions. For more information, visit http://www.standardandpoors.com/. DATASOURCE: Standard & Poor's CONTACT: David M. Blitzer, Ph.D., Managing Director & Chairman of the Index Committee, +1-212-438-3907 Web Site: http://www.standardandpoors.com/

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