The most recent trading session ended with Groupon (GRPN) standing at $10.68, reflecting a -1.57% shift from the previouse trading day's closing. The stock fell short of the S&P 500, which registered a gain of 0.28% for the day. Elsewhere, the Dow saw an upswing of 0.15%, while the tech-heavy Nasdaq appreciated by 0.15%.The online daily deal service's shares have seen a decrease of 20.92% over the last month, not keeping up with the Retail-Wholesale sector's gain of 5.07% and the S&P 500's gain of 2%.The in ...