The State Street SPDR Bloomberg 1-3 Month T-Bill ETF (BIL) is designed to closely mirror the price appreciation and income generation of the Bloomberg 1-3 Month U.S. Treasury Bill Index, prior to accounting for its operational costs. This fund primarily invests in government-issued U.S. Treasury Bills that have a remaining term of just one to three months. Due to this ultra-short maturity profile, the ETF exhibits lower sensitivity to shifts in interest rates compared to debt instruments with longer durations. Its holdings are adjusted and rebalanced on the last trading day of each month.