Benzinga's Top #PreMarket Gainers By: Benzinga via Benzinga June 08, 2015 at 08:07 AM EDT Ballard Power Systems Inc. (USA) (NASDAQ: BLDP) gained 9.48 percent to $2.31 in pre-market trading after the company reported a $10 ... Read More >> Related Stocks: Ballard Power Sys Central EUR Med A Corning Deutsche Bank Ag Fireeye Inc