Graph Blockchain Inc. (OTCMKTS:REGRF – Get Rating) was the target of a large growth in short interest in May. As of May 15th, there was short interest totalling 332,000 shares, a growth of 92.7% from the April 30th total of 172,300 shares. Based on an average trading volume of 377,600 shares, the days-to-cover ratio is […]