Shopify saw a increase in short interest in May. As of May 15th, there was short interest totaling 19,860,000 shares, an increase of 24.3% from the April 30th total of 15,980,000 shares. Based on an average trading volume of 9,650,000 shares, the short-interest ratio is presently 2.1 days. Currently, 1.7% of the company's stock are sold short. View Shopify's Short Interest .