Vanguard Mortgage-Backed Securities Index Fund Admiral Shares (VMBSX)
| Fund Assets | 16.60B |
| Expense Ratio | 0.07% |
| Min. Investment | $3,000 |
| Turnover | 91.00% |
| Dividend (ttm) | 0.79 |
| Dividend Yield | 4.14% |
| Dividend Growth | 10.08% |
| Payout Frequency | Monthly |
| Ex-Dividend Date | Feb 2, 2026 |
| Previous Close | 19.00 |
| YTD Return | 1.57% |
| 1-Year Return | 9.75% |
| 5-Year Return | 2.45% |
| 52-Week Low | 17.44 |
| 52-Week High | 19.04 |
| Beta (5Y) | n/a |
| Holdings | 5030 |
| Inception Date | Dec 3, 2009 |
About VMBSX
This low-cost index fund invests in U.S. mortgage-backed pass-through securities issued by the Government National Mortgage Association (GNMA), the Federal National Mortgage Association (FNMA), and the Federal Home Loan Mortgage Corporation (FHLMC). In addition to other bond market risks, the fund is subject to prepayment risk. When mortgage refinance activity is high, the yield on the fund is likely to decrease. Investors with a medium-term time horizon and a goal of monthly income may wish to consider this fund for the fixed income portion of their portfolio.
Performance
VMBSX had a total return of 9.75% in the past year, including dividends. Since the fund's inception, the average annual return has been 4.72%.
Equivalent ETF
VMBSX has an equivalent ETF with the ticker symbol VMBS, the Vanguard Mortgage-Backed Securities ETF. This is an ETF from the same fund company that follows the same index. It has an expense ratio of 0.04% compared to 0.07% for VMBSX.
| Symbol | Name | Expense Ratio |
|---|---|---|
| VMBS | Vanguard Mortgage-Backed Securities ETF | 0.04% |
Other Share Classes
These are alternative share classes of the same fund, from the same provider.
| Symbol | Share Class | Expense Ratio |
|---|---|---|
| VMBIX | Institutional Shares | 0.05% |
Dividend History
| Ex-Dividend | Amount | Pay Date |
|---|---|---|
| Feb 2, 2026 | $0.0652 | Feb 3, 2026 |
| Dec 17, 2025 | $0.0637 | Dec 18, 2025 |
| Nov 28, 2025 | $0.0643 | Dec 1, 2025 |
| Oct 31, 2025 | $0.0683 | Nov 3, 2025 |
| Sep 30, 2025 | $0.0609 | Oct 1, 2025 |
| Aug 29, 2025 | $0.0657 | Sep 2, 2025 |