RBC Downgrades Groupon To Underperform, Cites 'Deteriorating Fundamentals' By: Benzinga via Benzinga May 02, 2016 at 09:31 AM EDT Groupon Inc (NASDAQ: GRPN) reported robust Q1 results, with the revenue beating the estimate and the consensus. RBC Capital’s ... Read More >> Related Stocks: Groupon Cl A