Benzinga's Volume Movers By: Benzinga via Benzinga May 04, 2016 at 10:40 AM EDT Glaukos Corp (NYSE: GKOS) surged 22.04 percent to $24.25. The volume of Glaukos shares traded was 2209 percent higher than normal. ... Read More >> Related Stocks: Glaukos Corp Hain Celestial Group Plantronics Zillow Group Cl C