VBIRX — Vanguard Short-Term Bond Index Fund
Data updated: 2026-08-28
VBIRX — Vanguard Short-Term Bond Index Fund. Short Treasury / Sovereign Bond · $69.75B AUM · 0.06% expense ratio. Holdings, fees, performance and SEC filings.
VBIRX Fund Overview
VBIRX — Vanguard Short-Term Bond Index Fund is a US ETF managed by Vanguard Bond Index Funds, categorised as Short Treasury / Sovereign Bond. ABC INVEST provides holdings, performance, costs, cashflows, risk data, prospectus documents and SEC filings, sourced from SEC filings.
- Type: US ETF
- Manager: Vanguard Bond Index Funds
- Category: Short Treasury / Sovereign Bond
- Assets under management: $69.75B
- 1-year return: 3.0%
- Ticker: VBIRX
- SEC CIK: 0000794105
- SEC series ID: S000002563
- Share class ID: C000007061
VBIRX Holdings
Top 10 holdings of Vanguard Short-Term Bond Index Fund by percentage of net assets, from the fund's latest SEC N-PORT filing.
| Holding | % of net assets |
|---|---|
| United States Treasury Note/Bond | 1.12% |
| United States Treasury Note/Bond | 0.89% |
| United States Treasury Note/Bond | 0.88% |
| United States Treasury Note/Bond | 0.81% |
| United States Treasury Note/Bond | 0.80% |
| United States Treasury Note/Bond | 0.79% |
| United States Treasury Note/Bond | 0.78% |
| United States Treasury Note/Bond | 0.77% |
| United States Treasury Note/Bond | 0.77% |
| United States Treasury Note/Bond | 0.75% |
VBIRX Portfolio Allocation
Asset-class allocation of Vanguard Short-Term Bond Index Fund by percentage of net assets, from the latest SEC N-PORT filing.
| Asset class | Allocation |
|---|---|
| Fixed Income | 98.6% |
| Cash & Equivalents | 0.3% |
VBIRX Performance
Total returns for VBIRX (as of 2026-09-01), from SEC filings.
| Period | Total return |
|---|---|
| YTD | 0.5% |
| 1 year | 3.0% |
| 3 years (annualised) | 4.6% |
| 5 years (annualised) | 1.7% |
VBIRX Risk Information
Risk metrics for VBIRX, derived from monthly returns in SEC filings.
- 1-year volatility (annualised): 1.6%
VBIRX Costs and Fees
VBIRX costs about $6 per $10,000 invested per year in fund expenses.
- Net expense ratio: 0.06%
- Gross expense ratio: 0.06%
- Portfolio turnover: 55%
- Brokerage commissions: 0.00 bps of average net assets (SEC N-CEN)
VBIRX Cashflows
Over the 12 months to 2026-06, Vanguard Short-Term Bond Index Fund had net inflows of $6.43B, from monthly SEC N-PORT filings.
| Month | Net flow |
|---|---|
| 2026-06 | −$364.15M |
| 2026-05 | $632.57M |
| 2026-04 | $252.31M |
| 2026-03 | $627.47M |
| 2026-02 | $495.59M |
| 2026-01 | $831.62M |
VBIRX Debt Constituents
Largest debt holdings of Vanguard Short-Term Bond Index Fund by percentage of net assets, from the latest SEC N-PORT filing.
| Debt holding | % of net assets |
|---|---|
| United States Treasury Note/Bond | 1.12% |
| United States Treasury Note/Bond | 0.89% |
| United States Treasury Note/Bond | 0.88% |
| United States Treasury Note/Bond | 0.81% |
| United States Treasury Note/Bond | 0.80% |
| United States Treasury Note/Bond | 0.79% |
| United States Treasury Note/Bond | 0.78% |
| United States Treasury Note/Bond | 0.77% |
| United States Treasury Note/Bond | 0.77% |
| United States Treasury Note/Bond | 0.75% |
VBIRX Prospectus and SEC Filings
Official Vanguard Short-Term Bond Index Fund filings on SEC EDGAR — prospectus, portfolio holdings and annual reports.
- Prospectus (485BPOS) — filed 2026-04-28
- Prospectus (485BPOS) — filed 2025-04-29
- Prospectus supplement (497) — filed 2026-02-02
- Portfolio holdings (N-PORT) — filed 2026-08-28
- Portfolio holdings (N-PORT) — filed 2026-05-28
- Portfolio holdings (N-PORT) — filed 2026-02-26
- Annual census (N-CEN) — filed 2026-03-12
- Annual census (N-CEN) — filed 2025-03-13
Related Funds
Other Short Treasury / Sovereign Bond funds tracked on ABC INVEST:
Data Sources
ABC INVEST compiles this page from public filings made to the U.S. Securities and Exchange Commission (SEC) through EDGAR: portfolio holdings and monthly cashflows from Form N-PORT, expenses and returns from fund prospectuses (Form 485BPOS) and the SEC DERA Risk/Return Summary data sets, annual data from Form N-CEN, and shareholder reports from Form N-CSR.