Energy Recovery, Inc. (NASDAQ:ERII – Get Free Report) was the recipient of a significant increase in short interest in October. As of October 31st, there was short interest totalling 3,430,000 shares, an increase of 12.1% from the October 15th total of 3,060,000 shares. Based on an average daily volume of 516,900 shares, the days-to-cover ratio […]