Stocks to Watch Wednesday: Allstate, GM By: MarketWatch May 02, 2012 at 16:58 PM EDT Allstate Corp., Skullcandy Inc., Glu Mobile Inc., General Motors Co. and Cardinal Health Co. are among the companies whose stocks could see active trading on Thursday. Read More >> Related Stocks: Allstate Corp Apache Corp Cablevision Systems Cardinal Health CenterPoint Energy Cigna Corp General Motors NRG Energy Via Renewables Inc Cl A Viacom Walgreen Company