Short Interest in Sprott Energy ETF Spikes 36.4% in February The Sprott Energy Transition Materials ETF saw a sharp rise in short interest during February, increasing 36.4% to 12,000 shares as of mid-month. With an average daily trading volume of 15,500 shares, the ETF's days-to-cover ratio now stands at 0.8 days, reflecting heightened market activity.1