The Groupon IPO Feeding Frenzy Begins 9.87K Adrian Chen 11/04/11 12:12PM Filed to: Groupon Groupon Bubbles Ipo Andrew Mason Gettypic Tweetg Tweetv Valleywag Fb Never underestimate the power of hype. When Groupon's clattering clown car went public today, its stock soared 40% to $28 a share from its IPO price of $20. Groupon CEO Andrew Mason—that Andrew Mason—is now worth $1.3 billion. Happy Friday![Photo via Getty]