Why UBS Is Selling Yelp And Groupon By: Benzinga via Benzinga March 09, 2016 at 09:35 AM EST UBS’s Eric J. Sheridan downgraded the ratings for Yelp Inc (NYSE: YELP) and Groupon Inc (NASDAQ: GRPN) from Neutral to Sell, ... Read More >> Related Stocks: Bio-Techne Corp Groupon Cl A UBS Group Ag ADR Yelp Inc