Sumco Co. (OTCMKTS:SUOPY – Get Rating) was the target of a large decline in short interest in May. As of May 31st, there was short interest totalling 2,000 shares, a decline of 33.3% from the May 15th total of 3,000 shares. Based on an average daily volume of 2,100 shares, the days-to-cover ratio is currently […]