Benzinga's Top #PreMarket Gainers By: Benzinga via Benzinga November 30, 2015 at 08:15 AM EST WaferGen Bio-systems, Inc. (NASDAQ: WGBS) gained 40.83 percent to $1.170 in pre-market trading following Sunday YouTube comments ... Read More >> Related Stocks: Gilat Satellite Ntwk Ikang Healthcare ADR Office Depot Staples