PetSmart (PETM) +2.5% AH on news the stock will be added to the S&P 500 after the close on...

|By:, SA News Editor

PetSmart (PETM) +2.5% AH on news the stock will be added to the S&P 500 after the close on Oct. 4, replacing Sunoco (SUN) following the latter's buyout by ETP. Cabela's (CAB) will replace PETM in the S&P MidCap 400; Acorda Therapeutics (ACOR) will replace CAB in the S&P SmallCap 600.