Nanophase Technologies Co. (OTCMKTS:NANX – Get Rating) saw a significant increase in short interest in the month of March. As of March 15th, there was short interest totalling 6,300 shares, an increase of 133.3% from the February 28th total of 2,700 shares. Based on an average daily trading volume, of 31,700 shares, the days-to-cover ratio […]