The underlying index, administered by the index provider, is designed to reflect the performance of a selection of U.S.-dollar-denominated corporate bonds issued by companies that exhibit certain ESG characteristics in the aggregate, while also seeking to provide exposure to U.S. dollar-denominated corporate bonds, i.e., the constituents in the the eligible universe. Under normal circumstances, the fund will invest at least 80% of its total assets in the securities of the underlying index.