Benzinga's Top Pre-Market Gainers

Complete Genomics GNOM surged 9.22% to $3.20 in the pre-market session. Complete Genomics announced new technology developed for clinical-grade genomes. Merck & Co MRK added 3.98% to $42.85 in the pre-market session. Analysts at Citigroup upgraded Merck from “neutral” to “buy.” SunPower SPWR moved up 1.52% to $4.67 in the pre-market session. Analysts at Piper Jaffray upgraded SunPower from “neutral” to “overweight.” Ocean Power Technologies OPTT soared 1.41% to $3.60 in the pre-market trading. Ocean Power Technologies and Lockheed Martin LMT have entered into a teaming agreement to develop a 19 megawatt wave-energy project in Victoria, Australia.