This exchange-traded fund, the State Street SPDR Portfolio Short Term Corporate Bond ETF (SPSB), aims to replicate the price and yield performance of the Bloomberg U.S. 1-3 Year Corporate Bond Index, prior to accounting for fees and expenses. It offers investors an affordable, comprehensive means to gain exposure to US corporate bonds with maturities ranging from one to less than three years. The underlying index specifically includes investment-grade, fixed-rate, taxable, US dollar-denominated debt issues, each possessing a minimum of $300 million in outstanding par value. This index is weighted by market capitalization and undergoes reconstitution on the last business day of every month. As a member of the low-cost State Street SPDR Portfolio series, SPSB serves as a fundamental building block for constructing diversified portfolios across key asset classes.