There's no guarantee the move will last, but Yelp (YELP +8%) is up sharply in early trading on...

|About: Yelp (YELP)|By:, SA News Editor

There's no guarantee the move will last, but Yelp (YELP +8%) is up sharply in early trading on the day of its giant lockup expiration. Shares had been hammered in the weeks leading up to the expiration, and 21.8% of Yelp's float was shorted as of Aug. 15.