Benzinga's Top Pre-Market Gainers

WSI Industries

surged 32.92% to $6.50 in the pre-market session. WSI Industries reported a 51% surge in its Q3 net income. Gevo

added 18.24% to $7.00 in the pre-market session. Analysts at Cowen upgraded Gevo from “neutral” to “outperform.” Idenix Pharmaceuticals

moved up 12.06% to $10.50 in the pre-market session. Idenix Pharma reported positive clinical data for HCV drug candidates IDX184 and IDX719. Arena Pharmaceuticals

soared 5.05% to $10.19 in the pre-market trading. The Food and Drug Administration is scheduled to make a decision on the company's experimental obesity drug lorcaserin by June 27.