Tuesday’s biggest gaining & declining stocks By: MarketWatch December 27, 2011 at 17:11 PM EST MarketWatch’s daily rundown of shares making sizeable moves in the U.S. stock market. Read More >> Related Stocks: Commvault Systems Computer Sciences ConocoPhillips GX Defense Tech ETF MGM Resorts International Macy's Mead Johnson Nutrition Scientific Games Whirlpool Corp