iShares 0-3 Month Treasury Bond ETF (SGOV) is an exchange-traded fund that seeks to track the investment results of an index composed of U.S. Treasury bonds with remaining maturities of less than or equal to three months. The fund, issued by BlackRock under the iShares brand, primarily invests at least 80% of its assets in component securities of the ICE 0-3 Month US Treasury Securities Index, including short-term U.S. Treasury bills and notes characterized by minimal interest rate risk, high liquidity, and government-backed principal protection; it may allocate up to 10% to futures, options, and swaps for tracking purposes, with cash equivalents supporting derivative positions. Launched on May 26, 2020, and domiciled in the United States with management by BlackRock Fund Advisors, the ETF targets institutional and retail investors seeking capital preservation, portfolio stability, and a low-risk cash alternative in the fixed income segment. In July 2025, SGOV became the first ultra-short-term bond ETF to surpass $50 billion in assets under management, reflecting $20.5 billion in year-to-date inflows amid investor caution on interest rates; by late 2025, assets exceeded $60 billion with continued strong flows, such as $1.2 billion on December 2, 2025. The fund maintains an expense ratio of 0.09%, monthly distributions, and a portfolio of approximately 24 holdings focused exclusively on U.S. Treasurys.