When Groupon (NASDAQ:GRPN) went public in November 2011 Investing Daily’s Jim Fink labeled it the worst Internet IPO of the year. Just over 12 months later it’s hard to argue with that call. Groupon has plummeted 88% from its IPO price of $20. Even Facebook (NASDAQ:FB) after its botched IPO looks good compared to Groupon with a fall of “only” 40% since its initial offering back in May.   Bad News Keeps on Coming for Groupon Investors   Groupon’s latest stumble—a one-day 30% plunge to an all-time low of $2.76—came on November 9 after the company released yet another ...