Vanguard Mortgage-Backed Securities ETF (VMBS) is an exchange-traded fund that employs an indexing investment approach designed to track the performance of the Bloomberg U.S. MBS Float Adjusted Index. The fund invests primarily in investment-grade, U.S. agency mortgage-backed pass-through securities issued by the Government National Mortgage Association (GNMA), Federal National Mortgage Association (FNMA), and Federal Home Loan Mortgage Corporation (FHLMC); it maintains a dollar-weighted average maturity consistent with the index, which stood at 6.8 years as of August 31, 2024, and holds over 5,000 securities for broad diversification, with approximately 98.91% allocated to mortgage-backed securities. VMBS offers investors exposure to the intermediate-term U.S. mortgage-backed securities market through low-cost ETF shares traded on NASDAQ, targeting institutional and retail fixed-income investors seeking agency MBS with maturities of at least one year.
Launched on November 19, 2009, by The Vanguard Group, Inc., the fund is headquartered in Malvern, Pennsylvania, the global base of its parent firm, which manages approximately $11 trillion in assets as of January 2025. VMBS operates exclusively within U.S. fixed-income markets, focusing on developed North American government-related mortgage-backed segments without international geographic expansion.
In recent developments, VMBS has maintained steady operations amid Vanguard's broader fixed-income innovations, including the launch of new active and index municipal bond ETFs such as Vanguard Core Tax-Exempt Bond ETF (VCRM) and Vanguard Short Duration Tax-Exempt Bond ETF (VSDM) in late 2024, alongside ongoing portfolio adjustments like forward share splits for select Russell index ETFs announced in 2025. The fund experienced typical dividend distributions, with an ex-dividend date of November 3, 2025, at $0.172 per share, and saw assets under management reach about $15.36 billion as of recent data, reflecting resilience in performance with a one-year total return of 5.13%. No major acquisitions, partnerships, or structural changes specific to VMBS were reported in 2024 or 2025, underscoring its stable indexing strategy within Vanguard's expanding ETF lineup.