Intel weighs on techs as Groupon surges By: MarketWatch August 08, 2013 at 11:12 AM EDT Shares of Groupon surge after the company posts upbeat results. But sliding chip stocks weigh on the tech sector, as Intel, AMD and TI fall. Read More >> Related Stocks: Broadcom Corp Facebook Google, Inc. Groupon Cl A Intel Corp PHLX Semiconductor Sector Index Texas Instruments Yahoo