SBIL is Simplify Asset Management's cash management vehicle for its ecosystem of mutual funds and ETFs, which need to maintain short-term, highly liquid cash balances. The ETF is structured as a Government Money Market Fund (MMF), adhering to the strict portfolio composition and liquidity requirements of SEC Rule 2a-7. Since credit risk is removed, the sole material risk is interest rate risk (Fed Funds). As the Federal Reserve cuts rates, the fund's monthly yield will decrease.