Ryohin Keikaku Co., Ltd. (OTCMKTS:RYKKY – Get Rating) was the target of a large increase in short interest in May. As of May 15th, there was short interest totalling 60,000 shares, an increase of 91.1% from the April 30th total of 31,400 shares. Based on an average trading volume of 307,400 shares, the days-to-cover ratio […]