The Invesco Senior Loan ETF, referred to as "the Fund," seeks to mirror the performance of its underlying benchmark, the Morningstar LSTA US Leveraged Loan 100 Index. This Index is specifically structured to track the market-weighted returns of prominent institutional leveraged loans, taking into account their market valuations, associated spreads, and interest payments. To achieve its investment goal, the Fund typically allocates a minimum of 80% of its total assets to securities found within this Index. However, instead of acquiring every single component, the Fund employs a "sampling" strategy, investing in a representative selection of these securities. Both the Fund's portfolio and the Index itself undergo adjustments and re-evaluations semi-annually, occurring each June and December.