Benzinga's Top Pre-Market Gainers

JA Solar Holdings Co Ltd

moved up 14.61% to $1.02 in the pre-market session. JA Solar's total shipments in the first quarter came in at 366 MW. Earlier, the company had expected shipments of 320 MW to 350 MW in the quarter. Complete Genomics Inc

surged 9.80% to $2.24 in the pre-market session. GNOM has engaged Jefferies to assist it in exploring strategic alternatives. Amylin Pharmaceuticals Inc

added 2.89% to $27.40 in the pre-market session. AMLN's trailing-twelve-month revenue is $651.65 million. Aetna Inc

soared 2% to $41.31 in the pre-market trading. Aetna's PEG ratio is 0.77.