This State Street SPDR ETF aims to mirror the investment performance, encompassing both price changes and yield, of the Bloomberg 3-12 Month U.S. Treasury Bill Index, before accounting for fees and expenses. The fund primarily invests in publicly issued U.S. Treasury Bills that have between three and twelve months remaining until their maturity date. By concentrating on short-duration fixed income, this offering is typically less sensitive to fluctuations in interest rates when compared to securities with longer durations. The portfolio undergoes rebalancing on the final business day of each month.