Tech stocks slip; Zynga downgraded after run By: MarketWatch March 05, 2012 at 10:40 AM EST J.P. Morgan cuts the social-game maker to a neutral rating, while Yahoo shares perk up on a report of “massive restructuring” coming. Read More >> Related Stocks: Amazon.com Apple Broadcom Corp Computer Sciences Hewlett-Packard International Business Machines Yahoo Yelp Inc Zynga Inc Cl A eBay