The Innovator U.S. Equity Power Buffer ETF is designed to replicate the returns of the SPDR S&P 500 ETF Trust (SPY), though with a pre-established ceiling on potential gains. Simultaneously, it provides a protective cushion for investors, absorbing the initial 15% of any losses incurred over its specified outcome period. This fund allows for continuous investment, as its characteristics are recalibrated roughly once a year at the conclusion of each outcome period.