Benzinga's Top #PreMarket Gainers

FuelCell Energy

soared 25.09% to $3.39 in the pre-market trading after jumping 24.88% on Tuesday. Ballard Power Systems

shares gained 13.25% to $6.07 in the pre-market after the company announced the proceeds from exercise of warrants. Arrowhead Research

surged 12.58% to $23.80 in the pre-market session after Deutsche Bank initiated coverage on the stock with a Buy rating and a $45.00 price target. Smith & Wesson Holding

shares jumped 10.17% to $13.00 in pre-market trading after the company reported upbeat quarterly results.