I think the "I'm new" excuse can only be used one time. I refer to it as the "one mulligan and you're done" rule. Daily-deal website Groupon (NAS: GRPN) broke that unwritten rule on Friday. For the ...

It's been nearly 15 years since Groupon burst on the scene as a way to score deep discounts on everything from fine dining to car detailing. It quickly developed a legion of devoted followers, but ...

In a note released on Wednesday, Piper Jaffray recommended owning Groupon Inc GRPN's shares ahead of the first-quarter earnings release. Investors seem to have latched onto to this trading idea, ...