Sumco Co. (OTCMKTS:SUOPY – Get Free Report) was the recipient of a significant increase in short interest in April. As of April 15th, there was short interest totalling 2,000 shares, an increase of 53.8% from the March 31st total of 1,300 shares. Based on an average daily volume of 4,800 shares, the days-to-cover ratio is […]