Yelp stock can grow 40 percent: Gene Munster By: CNBC.com News May 01, 2014 at 13:08 PM EDT Yelp's better-than-expected quarterly earnings results offer a bright future for the stock, Piper Jaffray senior analyst Gene Munster says. Read More >> Related Stocks: Piper Jaffray Companies Twitter, Inc. Yelp Inc