Groupon leads techs down; Broadcom shines By: MarketWatch December 14, 2011 at 10:55 AM EST Technology stocks join a broad market retreat, led by a drop on Groupon Inc. But Broadcom shines after guiding to high end of outlook. Read More >> Related Stocks: Apple Broadcom Corp Cisco Systems Formfactor Inc Groupon Cl A Hewlett-Packard Intel Corp International Business Machines