The Innovator Premium Income 15 Buffer ETF - January (LJAN) is an exchange-traded fund that mostly invests in large cap equity. The fund seeks to provide a consistent income stream and a limited protective buffer against the first 15% of losses stemming from the decline in the S&P 500 Index. The exposure resets each year in January LJAN was launched on Dec 31, 2023 and is issued by Innovator.