AGL to Replace GAS, BWA to Replace AKS, PRGO to Replace MWW, DLTR to Replace WFR in S&P 500

December 8, 2011 5:20 PM EST
S&P MidCap 400 constituent AGL Resources Inc. (NYSE: AGL) will replace Nicor Inc. (NYSE: GAS) in the S&P 500 index, S&P SmallCap 600 constituent HSN Inc. (NASDAQ: HSNI) will replace AGL Resources in the S&P MidCap 400 index, and EnerSys (NYSE: ENS) will replace HSN in the S&P SmallCap 600 index after the close of trading on Monday, December 12. AGL Resources is acquiring Nicor in a deal expected to be completed before that date, pending final conditions.

To ensure each index more appropriately represents its market capitalization range, S&P will make the following index adjustments effective after the close of trading on Friday, December 16:

S&P MidCap 400 constituent BorgWarner Inc. (NYSE: BWA) will replace AK Steel Holding Corp. (NYSE: AKS) in the S&P 500 index, AK Steel Holding will replace Regeneron Pharmaceuticals Inc. (NASDAQ: REGN) in the S&P SmallCap 600 index, and Regeneron Pharmaceuticals will replace BorgWarner in the S&P MidCap 400 index.

S&P MidCap 400 constituents Perrigo Co. (NASDAQ: PRGO) and Dollar Tree Inc. (NASDAQ: DLTR) will replace Monster Worldwide Inc. (NYSE: MWW) and MEMC Electronic Materials Inc. (NYSE: WFR) in the S&P 500 index, and Monster Worldwide and MEMC Electronic Materials will replace Perrigo and Dollar Tree in the S&P MidCap 400 index.

S&P SmallCap 600 constituents HMS Holdings Corp. (NASDAQ: HMSY), World Fuel Services Corp. (NYSE: INT) and CLARCOR Inc. (NYSE: CLC) will replace The Ryland Group Inc. (NYSE: RYL), Cousins Properties Inc. (NYSE: CUZ) and Career Education Corp. (NASDAQ: CECO) in the S&P MidCap 400 index, and The Ryland Group, Cousins Properties and Career Education will replace HMS Holdings, World Fuel Services and CLARCOR in the S&P SmallCap 600 index.


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