Why only Apple may be able to lift the S&P 500 out of limbo By: MarketWatch April 22, 2015 at 06:10 AM EDT The S&P 500 is failing to beat a big technical barrier these days. There’s only one company that may be able to kick things into gear. Read More >> Related Stocks: AT&T Inc Amgen Apple Boeing Co Chipotle Mexican Grill Coca-Cola Company Facebook McDonald's Corp Qualcomm, Inc. Six Flags Entertainment Corp Standard & Poors 500 Texas Instruments Yahoo Yum Brands eBay