Yelp, Akamai fall, but Apple, BlackBerry rise By: MarketWatch February 07, 2013 at 10:40 AM EST Shares of Yelp and Akamai fall on results. Apple rises as Einhorn files suit on proxy proposal, while BlackBerry jumps after naming two new directors. Read More >> Related Stocks: Akamai Technologies Apple Facebook Google, Inc. PHLX Semiconductor Sector Index Yelp Inc