Thursday's biggest gaining and declining stocks By: MarketWatch August 19, 2010 at 08:48 AM EDT Stocks expected to move significantly Thursday include Dollar Tree, McAfee, PetSmart, Sears Holdings and Stein Mart. Read More >> Related Stocks: Abraxas Petro Corp Achison Inc Dollar Tree GX Defense Tech ETF Intel Corp John B Sanfilippo PetSmart, Inc. Smartrent Inc