NEW YORK, Sept. 25, 2013 /PRNewswire/ -- S&P Dow Jones Indices will make the following changes to the S&P MidCap 400 and S&P SmallCap 600 indices:

• S&P SmallCap 600 constituent Mid-America Apartment Communities Inc. (NYSE: MAA) will replace Monster Worldwide Inc. (NYSE: MWW) in the S&P MidCap 400, Monster Worldwide will replace Mid-America Apartment Communities in the S&P SmallCap 600, and Green Dot Corp. (NYSE: GDOT) will replace Colonial Property Trust (NYSE: CLP) in the S&P SmallCap 600 after the close of trading on Tuesday, October 1. MidAmerica Apartment Communities is acquiring Colonial Property in a deal expected to be completed on or about that date pending final approvals. The combined company will have a market capitalization that is more representative of the mid-cap market space. Monster Worldwide has a market capitalization under $550 million, making it more appropriate for the S&P SmallCap 600 index.
• Newpark Resources Inc. (NYSE: NR) will replace Arbitron Inc. (NYSE: ARB) in the S&P SmallCap 600 after the close of trading on Friday, September 27. S&P 500 constituent (NYSE: NLSN) Nielsen Holdings N.V. is acquiring Arbitron in a deal expected to be completed on September 30, pending final approvals.
• Santarus Inc. (NASD:SNTS) will replace Volterra Semiconductor Corp. (NASD:VLTR) in the S&P SmallCap 600 after the close of trading on Tuesday, October 1. Maxim Integrated Products Inc. (NASD:MXIM) is acquiring Volterra in a deal expected to be completed soon, pending final conditions.

Mid-America Apartment Communities is a real estate investment Trust (REIT) that acquires, owns and operates apartment communities and multifamily homes. Headquartered in Memphis, TN, the company will be added to the S&P MidCap 400 GICS (Global Industry Classification Standard) Residential REITs Sub-Industry index.

Monster Worldwide provides online and mobile employment solutions. Headquartered in New York, NY, the company will be added to the S&P SmallCap 600 GICS Internet Software & Services Sub-Industry index.

Green Dot offers prepaid debit cards and cash loading and transfer services. Headquartered in Pasadena, CA, the company will be added to the S&P SmallCap 600 GICS Consumer Finance Sub-Industry index.

Newpark Resources provides various products and services primarily to the oil and gas exploration industry. Headquartered in The Woodlands, TX, the company will be added to the S&P SmallCap 600 GICS IT Oil & Gas Equipment & Services Sub-Industry index.

Santarus is a specialty biopharmaceutical company. Headquartered in San Diego, CA, the company will be added to the S&P SmallCap 600 GICS Pharmaceuticals Sub-Industry index.

Following is a summary of the changes:

 

 

Additions to and deletions from S&P  Dow Jones Indices do not in any way reflect an opinion on the investment merits of the companies involved.

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For more information:

Dave GuarinoCommunicationsS&P Dow Jones Indicesdave.guarino@spdji.com(212) 438-1471

David BlitzerManaging Director and Chairman of the Index CommitteeS&P Dow Jones Indicesdavid.blitzer@spdji.com (212) 438-3907

SOURCE S&P Dow Jones Indices

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