Benzinga's Top #PreMarket Losers By: Benzinga via Benzinga July 29, 2015 at 08:24 AM EDT Yelp Inc (NYSE: YELP) shares dropped 20.29 percent to $26.71 in pre-market after the company posted a loss in the second quarter and ... Read More >> Related Stocks: Akamai Technologies MasterCard Transocean Ltd Twitter, Inc. Yelp Inc