Benzinga's Top #PreMarket Gainers

Camtek CAMT surged 20.75% to $3.20 in the pre-market session. Camtek's PEG ratio is 1.41. Orexigen Therapeutics OREX shares gained 19.93% to $6.80 in the pre-market after the company announced successful results of the interim analysis of the Light Study. Ariad Pharmaceuticals ARIA soared 10.05% to $4.16 in the pre-market trading. Ariad shares have dropped 82.75% over the past 52 weeks, while the S&P 500 index has gained 28.33% in the same period. Glu Mobile GLUU shares jumped 5.77% to $3.85 in pre-market trading. Glu Mobile's trailing-twelve-month revenue is $97.08 million.