IWA Iowa Telecommunications Services

NEW YORK, May 24 /PRNewswire/ -- Standard & Poor's will make the following changes to the S&P MidCap 400 and S&P SmallCap 600 indices:

• OSI Systems Inc. (Nasdaq: OSIS) will replace Iowa Telecommunications Services Inc. (NYSE: IWA) in the S&P SmallCap 600 index after the close of trading on Friday, May 28. Iowa Telecommunications Services is being acquired by S&P 500 constituent Windstream Corp. (Nasdaq: WIN) in a deal expected to close on or about that date, pending final approvals.

• First American Financial Co. (NYSE: FAFwi) will replace S&P MidCap 400 constituent Horace Mann Educators Co. (NYSE: HMN) in the S&P MidCap 400, and Horace Mann Educators will replace Theragenics Co. (NYSE: TGX) in the S&P SmallCap 600 index effective after the close of trading on Tuesday, June 1. S&P MidCap 400 constituent The First American Co. (NYSE: FAF) is spinning off First American Financial to its shareholders in a transaction expected to be completed on or about that date. The First American Co., which is changing its name to CoreLogic Inc., will remain in the S&P MidCap 400 following the spin-off.  Horace Mann Educators has a market capitalization of less than $560 million, making it more representative of the small cap space. Theragenics has a market capitalization of less than $45 million, ranking it 600th in the S&P Small Cap 600 index.

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

OSI Systems designs, manufactures, and sells specialized electronic systems and components.  Headquartered in Hawthorne, CA, the company will be added to the S&P SmallCap 600 GICS Electronic Equipment & Instruments Sub-Industry index.

First American Financial is a provider of property & casualty insurance, title insurance and related services. Headquartered in Santa Clara, CA, the company will be added to the S&P MidCap 400 GICS (Global Industry Classification Standard) Property & Casualty Insurance Sub-Industry index.  

Horace Mann Educators provides personal lines of property and casualty insurance, retirement annuities, and life insurance.  Headquartered in Springfield, IL, the company will be added to the S&P SmallCap 600 GICS Multi-line Insurance Sub-Industry index.  

Following is a summary of the changes:

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 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.

SOURCE Standard & Poor's