Groupon (GRPN) closed at $14.85 in the latest trading session, marking a +1.37% move from the prior day. This move outpaced the S&P 500's daily loss of 0.16%. Elsewhere, the Dow saw an upswing of 0.04%, while the tech-heavy Nasdaq depreciated by 0.18%.Coming into today, shares of the online daily deal service had lost 10.4% in the past month. In that same time, the Retail-Wholesale sector gained 1%, while the S&P 500 gained 3.15%.The investment community will be closely monitoring the performance of Groupon ...