M3, Inc. (OTCMKTS:MTHRF – Get Free Report) was the target of a significant growth in short interest in the month of March. As of March 15th, there was short interest totalling 1,941,400 shares, a growth of 24.4% from the February 29th total of 1,560,600 shares. Based on an average trading volume of 100 shares, the […]