The investment seeks investment results that correspond generally to the performance, before fees and expenses, of the S&P MidCap 400 ESG Index. The index seeks to target 75% of the float market capitalization (i.e., the amount of stock which is available for trading by the general public) of each Global Industry Classification Standard Industry Group (?GICS Industry Group?) within the S&P MidCap 400 Index, using an ESG score as the defining characteristic. The fund will invest at least 80% of its total assets (but typically far more) in component securities of the index. It is non-diversified.