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Data provided bySource: Twelve Data
VBIRX
$10.01-0.20%
as of close, Nov 12, 2026
Priced once a day, after the close
Vanguard Short-Term Bond Index Fund Admiral SharesMutual fund · Bond Funds
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VBIRX — Vanguard Short-Term Bond Index Fund Admiral Shares NAV, chart and key statistics

Technical analysis2
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Addendum charts0
Data provided bySource: Twelve Data
VBIRX returns: By year · By month · By week
Expense ratio (prospectus)
0.06%
Distribution yield
Not shown
YTD total return
+0.15%
YTD price return
-3.19%
Avg return 3Y
+4.47%
Avg return 5Y
+1.79%
AUM (whole fund, all share classes)
$69.8B (2026-06-30)
Fund family
Vanguard
52W low
$9.98
52W high
$10.37

Performance · price returntotal return · as of 2026-11-12#

Data provided bySource: Twelve Data
1D
-0.20%
5D
-0.89%
1M
+0.10%
3M
-1.48%
YTD
-3.19%
1Y
-3.10%
5Y
-6.10%
1D
-0.20%
5D
-0.89%
1M
+0.46%
3M
-0.44%
YTD
+0.15%
1Y
+0.91%
5Y
+8.92%

About VBIRX#

Objective: “Vanguard Short-Term Bond Index Fund (the “Fund”) seeks to track the performance of a market-weighted bond index with a short-term dollar-weighted average maturity.”

How it invests: “The Fund employs an indexing investment approach designed to track the performance of the Bloomberg U.S. 1-5 Year Government/Credit Float Adjusted Index (the “Target Index”), which includes all medium and larger issues of U.S. government, investment-grade corporate, and investment-grade international dollar-denominated bonds that have maturities between 1 and 5 years and are publicly issued. Under normal circumstances, the Fund invests at least 80% of its net assets, plus the amount of any borrowings for investment purposes, in the bonds that make up the Target Index.”

Same portfolio as BSV (ETF, 0.03% a year): VBIRX is another share class of the same fund, so what differs between them is the fee and how each is bought.

Tracks: Vanguard Short-Term Bond IndexObjective and strategy as stated in the fund’s SEC prospectus filing.Official SEC filings ↗

Holdings#

855 holdings · top 10 = 75% · filed Jun 30, 2026

Top 10 holdings

IssuerWeight
1United States Treasury Note/Bond
69.7%
2JPMorgan Chase & Co
0.7%
3International Bank for Reconstruction & Development
0.7%
4Morgan Stanley
0.6%
5European Investment Bank
0.6%
6Bank of America Corp
0.6%
7Goldman Sachs Group Inc/The
0.5%
8Asian Development Bank
0.4%
9Kreditanstalt fuer Wiederaufbau
0.4%
10Wells Fargo & Co
0.4%

Annualized returns (CAGR)#

Data provided bySource: Twelve Data
VBIRX

Compound annual growth rate per holding period, total return (dividends reinvested), from weekly adjusted closes. Each column is anchored at the date under it; horizons the fund’s history can’t span are omitted.

Fund flows#

VBIRX
VBIRX
VBIRX

Net creations minus redemptions per period, from the fund’s SEC Form N-PORT filings (series-level: where a fund shares its portfolio with mutual-fund share classes, flows cover all classes combined). Quarterly filings publish with a ~60-day lag, so recent months appear as filings land. Flow data begins mid-2019 — Form N-PORT did not exist before then, for any fund.