Vanguard Mortgage-Backed Securities Index Fund
Price through Oct 22, 2026 · Flows through Oct 31, 2024. Figures use the latest available records, not a live quote. Fund details retrieved Oct 22, 2026. Holdings snapshot retrieved Oct 22, 2026.
The fund employs an indexing investment approach designed to track the performance of the Bloomberg U.S. MBS Float Adjusted Index. This index covers U.S. agency mortgage-backed pass-through securities issued by the GNMA, the FNMA, and the FHLMC. To be included in the index, pool aggregates must have at least $1 billion currently outstanding and a weighted average maturity of at least 1 year. All of the fund's investments will be selected through the sampling process, and at least 80% of the fund's assets will be invested in bonds included in the index.
VMBS price
Table
| Date | VMBS close |
|---|---|
| Sep 22, 2026 | $45.37 |
| Sep 23, 2026 | $44.90 |
| Sep 24, 2026 | $44.63 |
| Sep 25, 2026 | $44.82 |
| Sep 28, 2026 | $44.53 |
| Sep 29, 2026 | $44.45 |
| Sep 30, 2026 | $44.41 |
| Oct 1, 2026 | $44.38 |
| Oct 2, 2026 | $44.24 |
| Oct 5, 2026 | $44.16 |
| Oct 6, 2026 | $44.30 |
| Oct 7, 2026 | $44.22 |
| Oct 8, 2026 | $44.43 |
| Oct 9, 2026 | $44.53 |
| Oct 12, 2026 | $44.56 |
| Oct 13, 2026 | $44.65 |
| Oct 14, 2026 | $44.65 |
| Oct 15, 2026 | $44.93 |
| Oct 16, 2026 | $44.91 |
| Oct 19, 2026 | $44.79 |
| Oct 20, 2026 | $44.87 |
| Oct 21, 2026 | $44.86 |
| Oct 22, 2026 | $45.30 |
Recent fund-flow records are unavailable, while the price has returned -3.8% so far this year. At 0.040% a year it is not the cheapest way in — IVV has a reported fee of 0.03%.
COMPOSED FROM THE FUND’S OWN DAILY RECORDS · UPDATED WITH EACH REFRESH
Sector weights
- MBS100%
- Other100%
- Cash & Others100%
- Securitized98.59%
- Cash1.29%
- Miscellaneous0.11%
Show as table
| Item | Value (%) |
|---|---|
| MBS | 100% |
| Other | 100% |
| Cash & Others | 100% |
| Securitized | 98.59% |
| Cash | 1.29% |
| Miscellaneous | 0.11% |
| 1 week | +0.9% |
| 1 month | -0.2% |
| 3 months | -1.8% |
| 6 months | -4.0% |
| YTD | -3.8% |
| 1 year | -4.5% |
| 3 years | — |
PRICE RETURN, DISTRIBUTIONS NOT REINVESTED
| 1 week | — |
| 1 month | — |
| 3 months | — |
| YTD | — |
| 1 year | — |
CREATION/REDEMPTION DOLLARS, DAILY RECORDS
Monthly net flows
- Inflow / above zero
- Outflow / below zero
Show as table
| Label | Value ($) |
|---|---|
| Jul | $0 |
| Sep | −$477M |
| Oct | $5.8M |
VOLATILITY & DRAWDOWN FROM THE DAILY TAPE · CONCENTRATION FROM THE LATEST DISCLOSED BOOK