 Eaton Vance Tax-Managed Buy-Write Income NYSE:ETB saw a large growth in short interest in March. As of March 13th, there was short interest totalling 296,400 shares, a growth of 76.8 from the February 27th total of 167,600 shares. Based on an average daily trading volume, of 76,300 shares, the days-to-cover ratio is presently 3.9 days. ... 