Benzinga's Top #PreMarket Gainers By: Benzinga via Benzinga October 20, 2015 at 08:46 AM EDT Energy Recovery, Inc. (NASDAQ: ERII) shares climbed 139.84 percent to $5.90 in pre-market trading after the company reported that it ... Read More >> Related Stocks: Energy Recovery Inc SanDisk Corp Schlumberger Ltd Sonic Cp Tower Semiconductor Western Digital Yum Brands