The Innovator U.S. Small Cap Power Buffer ETF - May (KMAY) is an exchange-traded fund that mostly invests in small-cap stocks. The fund aims to participate in the price movement of the iShares Russell 2000 ETF, up to a predetermined cap, while buffering the first 15% of losses over a one-year period. The fund is actively managed, using FLEX options and collateral to provide exposure KMAY was launched on May 1, 2025 and is issued by Innovator.