10 Biggest Mid-Day Gainers For Tuesday By: Benzinga via Benzinga December 13, 2016 at 12:42 PM EST OpGen Inc (NASDAQ: OPGN) shares jumped 61.9 percent to $1.70. OpGen shares have dropped 35.50 percent over the past 52 weeks, ... Read More >> Related Stocks: Achaogen Inc Atara Biotherap Boston Scientific Monolithic Power Sys Neovasc Inc Organovo Holdings Paymentus Holdings Inc Cl A Seaworld Entertainment Inc Company U S Energy Corp