The State Street SPDR Portfolio Treasury ETF (SPTB) is designed to mirror, before its operating expenses, the price and yield performance of the Bloomberg U.S. Treasury Index. This cost-effective ETF provides investors with direct access to U.S. Treasury bonds having a remaining maturity of one year or longer. As a component of the low-cost State Street SPDR Portfolio ETFs suite, SPTB is one of several foundational building blocks crafted to offer broad and diversified exposure to key asset classes. For investors aiming to break down the Bloomberg U.S. Aggregate Bond Index ("Agg") into its constituent parts, SPTB serves as an efficient tool to gain focused exposure specifically to the core U.S. Treasuries represented within that broader index.