Short Interest in iShares ESG MSCI USA Leaders ETF Declines Significantly Short interest in iShares ESG MSCI USA Leaders ETF (NASDAQ: SUSL) dropped by 27.1% in February, reaching 14,000 shares as of mid-month. This marks a notable decrease from January's total of 19,200 shares. With an average daily trading volume of 20,600 shares, the short-interest ratio now stands at 0.7 days.1