Upwork Inc. (NASDAQ:UPWK – Get Rating) was the target of a large growth in short interest during the month of May. As of May 15th, there was short interest totalling 10,890,000 shares, a growth of 65.0% from the April 30th total of 6,600,000 shares. Based on an average trading volume of 1,770,000 shares, the short-interest […]