VLGIX — Vanguard Long-Term Treasury Index Fund
Data updated: 2026-07-29
VLGIX — Vanguard Long-Term Treasury Index Fund. Long Treasury / Sovereign Bond · $14.60B AUM. Holdings, fees, performance and SEC filings.
VLGIX Fund Overview
VLGIX — Vanguard Long-Term Treasury Index Fund is a US ETF managed by Vanguard Scottsdale Funds, categorised as Long 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 Scottsdale Funds
- Category: Long Treasury / Sovereign Bond
- Assets under management: $14.60B
- 1-year return: 4.4%
- Ticker: VLGIX
- SEC CIK: 0001021882
- SEC series ID: S000026861
- Share class ID: C000080848
VLGIX Holdings
Top 10 holdings of Vanguard Long-Term Treasury 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 | 2.22% |
| United States Treasury Note/Bond | 2.21% |
| United States Treasury Note/Bond | 2.21% |
| United States Treasury Note/Bond | 2.17% |
| United States Treasury Note/Bond | 2.17% |
| United States Treasury Note/Bond | 2.17% |
| United States Treasury Note/Bond | 2.14% |
| United States Treasury Note/Bond | 2.13% |
| United States Treasury Note/Bond | 2.04% |
| United States Treasury Note/Bond | 2.04% |
VLGIX Portfolio Allocation
Asset-class allocation of Vanguard Long-Term Treasury Index Fund by percentage of net assets, from the latest SEC N-PORT filing.
| Asset class | Allocation |
|---|---|
| Fixed Income | 98.3% |
| Cash & Equivalents | 1.1% |
VLGIX Performance
Total returns for VLGIX (as of 2026-09-01), from SEC filings.
| Period | Total return |
|---|---|
| YTD | -0.4% |
| 1 year | 4.4% |
| 3 years (annualised) | -0.8% |
| 5 years (annualised) | -5.1% |
VLGIX Risk Information
Risk metrics for VLGIX, derived from monthly returns in SEC filings.
- 1-year volatility (annualised): 7.7%
VLGIX Costs and Fees
VLGIX costs about $3 per $10,000 invested per year in fund expenses.
- Net expense ratio: 0.03%
- Gross expense ratio: 0.03%
- Portfolio turnover: 20%
- Brokerage commissions: 0.00 bps of average net assets (SEC N-CEN)
VLGIX Cashflows
Over the 12 months to 2026-05, Vanguard Long-Term Treasury Index Fund had net inflows of $602.55M, from monthly SEC N-PORT filings.
| Month | Net flow |
|---|---|
| 2026-05 | $326.58M |
| 2026-04 | −$28.69M |
| 2026-03 | −$669.76M |
| 2026-02 | $814.49M |
| 2026-01 | −$40.01M |
| 2025-12 | $327.71M |
VLGIX Debt Constituents
Largest debt holdings of Vanguard Long-Term Treasury Index Fund by percentage of net assets, from the latest SEC N-PORT filing.
| Debt holding | % of net assets |
|---|---|
| United States Treasury Note/Bond | 2.22% |
| United States Treasury Note/Bond | 2.21% |
| United States Treasury Note/Bond | 2.21% |
| United States Treasury Note/Bond | 2.17% |
| United States Treasury Note/Bond | 2.17% |
| United States Treasury Note/Bond | 2.17% |
| United States Treasury Note/Bond | 2.14% |
| United States Treasury Note/Bond | 2.13% |
| United States Treasury Note/Bond | 2.04% |
| United States Treasury Note/Bond | 2.04% |
VLGIX Prospectus and SEC Filings
Official Vanguard Long-Term Treasury Index Fund filings on SEC EDGAR — prospectus, portfolio holdings and annual reports.
- Prospectus supplement (497) — filed 2026-06-30
- Prospectus supplement (497) — filed 2026-02-02
- Prospectus supplement (497) — filed 2025-02-03
- Portfolio holdings (N-PORT) — filed 2026-07-29
- Portfolio holdings (N-PORT) — filed 2026-04-28
- Portfolio holdings (N-PORT) — filed 2026-01-28
- Annual census (N-CEN) — filed 2025-11-12
- Annual census (N-CEN) — filed 2024-11-12
Related Funds
Other Long 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.