Vanguard Short-Term Treasury Fund Admiral Shares (VFIRX)

Typically, the fund allocates a minimum of 80% of its holdings to U.S. government-issued debt, specifically comprising Treasury bills, bonds, and notes. The portfolio is designed to sustain a dollar-weighted average maturity ranging from one to four years. Furthermore, it retains the option to incorporate derivative instruments like options, futures contracts, and various swap agreements.