 Alector Inc NASDAQ:ALEC saw a large drop in short interest in the month of March. As of March 31st, there was short interest totalling 5,380,000 shares, a drop of 8.3 from the March 15th total of 5,870,000 shares. Based on an average daily volume of 671,600 shares, the days-to-cover ratio is presently 8.0 days. Currently, ... 