 Nuveen New York AMT-Fr Qty Mnpl Incm Fd NYSE:NRK saw a significant increase in short interest in March. As of March 13th, there was short interest totalling 227,100 shares, an increase of 472.0 from the February 27th total of 39,700 shares. Based on an average daily volume of 110,400 shares, the days-to-cover ratio is presently ... 