10 best-performing S&P 500 stocks of 2014 By: MarketWatch June 02, 2014 at 09:17 AM EDT There have been many surprises, as M&A heats up and yields decline, writes Phil van Doorn. Read More >> Related Stocks: AT&T Inc Actavis Plc Berkshire Hathaway Coca-Cola Company Comcast Corp DIRECTV Delta Air Lines Electronic Arts Exelon Corp Keurig Green Mountain Nabors Industries Newfield Exploration Pepco Holdings SanDisk Corp Southwest Airlines Standard & Poors 500 Time Warner Cable Valeant Pharmaceuticals International, Inc.