 Nlight Inc NASDAQ:LASR was the target of a significant decrease in short interest in April. As of April 15th, there was short interest totalling 1,660,000 shares, a decrease of 15.3 from the March 31st total of 1,960,000 shares. Based on an average trading volume of 330,000 shares, the short-interest ratio is presently 5.0 days. Currently, ... 