First Trust RBA American Industrial Renaissance ETF (NASDAQ:AIRR) Short Interest Up 69.6% in March

First Trust RBA American Industrial Renaissance ETF (NASDAQ: AIRR - Get Free Report) was the recipient of a large increase in short interest in March. As of March 31st, there was short interest totaling 131,770 shares, an increase of 69.6% from the March 15th total of 77,674 shares. Based on an average daily volume of 735,550