iShares S&P 500 BuyWrite ETF (BATS:IVVW – Get Free Report) was the target of a significant increase in short interest in September. As of September 15th, there was short interest totaling 38,897 shares, an increase of 146.7% from the August 31st total of 15,764 shares. Currently, 1.0% of the shares of the company are sold […]