Invesco BulletShares 2028 Municipal Bond 

The fund generally will invest at least 80% of its total assets in securities that comprise the underlying index. The underlying index seeks to measure the performance of a portfolio of U.S. dollar-denominated investment-grade municipal bonds with maturities or, in some cases, “effective maturities,” in the year 2028 (collectively, “2028 Bonds”). It is non-diversified.