Stocks to watch: Big Lots, Guess, NetApp and more

a meaningful pick up in merger and acquisition activity could give them a boost. Big Lots (NYSE:BIG) H.J. Heinz & Co. (NYSE:HNZ) Marvell Technology Group Ltd. (NASDAQ:MRVL) Tiffany & Co. (NYSE:TIF) After Wednesday��s closing bell, Computer Sciences Corp....