Hello! I'm a first-time poster here, and about to be a first-time stock owner. In light of LinkedIn's monster success in their public start, I have dollar signs in my eyes at the news of Groupon going public. Say what you want about Groupon as a company. Personally, I think that they will be out of business within 5 years. But that is irrelevant, and not why I'm here. I'm looking to fund a Vegas trip. I think it is as sure of a bet you can make that GRPN will spike by at the very least 50% in their first day of trading. 2 questions: am I an idiot for thinking this? And how feasible is it to buy and sell the stock in the same day?