ProShares Short MidCap 400 (NYSEARCA:MYY – Get Free Report) was the target of a significant decline in short interest during the month of May. As of May 15th, there was short interest totaling 2,748 shares, a decline of 84.6% from the April 30th total of 17,794 shares. Currently, 1.6% of the company’s stock are short [...]