The following commentary comes from an independent investor or market observer as part of TheStreet's guest contributor program, which is separate from the company's news coverage.
By Tom Taulli , InvestorPlace Writer
NEW YORK (InvestorPlace) --When it comes to IPOs, there are several arcane rules. One is the "quiet period," which requires that a company's insiders and underwriters not make any forward-looking comments about its IPO. But once it expires at the end of 40 days from its offering, you'll typically see plenty of analyst recommendations.
While they typically glow, there are some exceptions. Just look at Groupon (GRPN). In mid-December, when Groupon's quiet period expired, the company's analysts issued recommendations that ranged from neutral to sector perform to hold.
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