This senior, unsecured, medium-term note, issued by Bank of Montreal, is designed to deliver returns that are three times (3x) the inverse daily performance of its underlying index, compounded on a daily basis. Investors should note that these returns are subject to deductions including a daily investor fee, any negative daily interest, and, if applicable, a redemption fee. The underlying index itself is an equally dollar-weighted benchmark composed of the ten U.S.-listed energy and oil companies with the largest market capitalization.