VANGUARD LONG-TERM TREASURY INDEX FUND
U.S. bond index ETF · tracks Bloomberg U.S. Long Treasury Index
As of its 2026 Q2 report, VANGUARD LONG-TERM TREASURY INDEX FUND held 98 positions with $14.60B in net assets. Its ten largest holdings made up 21.5% of the fund. The VGLT share class costs 0.03% a year. Over the 12 months to May 2026, VGLT returned 4.4%, with dividends reinvested. In 2026 Q2 it added 2 new positions and exited 1.
Vanguard Long-Term Treasury Index Fund (the Fund) seeks to track the performance of a market-weighted Treasury index with a long-term dollar-weighted average maturity.
The fund tracks the Bloomberg U.S. Long Treasury Index using a sampling approach, holding a range of Treasury securities with maturities greater than 10 years that collectively approximate the index's key risk factors and characteristics. The fund maintains a dollar-weighted average maturity consistent with the index, which was 22 years as of August 31, 2025. Because the fund samples rather than holds all index constituents, its returns may diverge from the index.
What you own
| Company | Weight | Value | Shares |
|---|---|---|---|
United States Treasury Note/Bond 4.75% · due 2056-02-15 | 2.22% | $324.39M | — |
United States Treasury Note/Bond 4.75% · due 2055-08-15 | 2.21% | $323.23M | — |
United States Treasury Note/Bond 4.75% · due 2055-05-15 | 2.21% | $322.62M | — |
United States Treasury Note/Bond 4.63% · due 2054-05-15 | 2.17% | $317.11M | — |
United States Treasury Note/Bond 4.63% · due 2055-02-15 | 2.17% | $317.07M | — |
United States Treasury Note/Bond 4.63% · due 2055-11-15 | 2.17% | $316.88M | — |
United States Treasury Note/Bond 4.75% · due 2053-11-15 | 2.14% | $312.29M | — |
United States Treasury Note/Bond 4.50% · due 2054-11-15 | 2.13% | $310.78M | — |
United States Treasury Note/Bond 4.25% · due 2054-02-15 | 2.04% | $297.85M | — |
United States Treasury Note/Bond 4.25% · due 2054-08-15 | 2.04% | $297.45M | — |
All 98 holdings, with the share counts as filed, open with a free account.
What the fund is made of
Percentages are of fund net assets. Rounding, liabilities and short positions can make totals differ from 100%.
| Bonds | 98.26% |
| Cash & short-term | 1.07% |
How it has done
VGLT share class · total returns with dividends reinvested
Volatility over the last 12 months: 7.71%. Past returns are a record, not a forecast.
The 3 share classes hold the same portfolio
| Share class | Expense ratio | 1 year | 3 years | 5 years | Worst fall |
|---|---|---|---|---|---|
| 0.06% | +4.45% | -2.43% | -23.03% | -16.21% | |
| 0.03% | +4.41% | -2.39% | -22.99% | -16.20% | |
| 0.03% | +4.44% | -2.39% | -22.96% | -16.19% |
These classes hold the same portfolio, so the 0.08pp spread over 5 years is the cost difference between them — roughly 0.02pp a year — not a difference in what they own.
Fees & fund details
VANGUARD LONG-TERM TREASURY INDEX FUND is a U.S. bond index ETF that tracks the Bloomberg U.S. Long Treasury Index.
- Asset class
- Bonds
- Region
- United States
- Management
- Index (passive)
- Fund type
- ETF
- Rate sensitivity
- Long duration
- Expense ratio, by class
- 0.03% – 0.06%· VGLT 0.03%
- Portfolio turnover
- 20.00% a year · as of 2026 Q2
Turnover is how much of the portfolio was replaced in a year.
Classified from what the fund holds, not from its name · 2026 Q2. The summary is a paraphrase of the prospectus; the objective is verbatim.
What changed this quarter
Positions that entered or left the fund since its previous filing. Positions that were only resized are not listed.
2 new· the largest 1
1 exited
Debt profile
What this fund holds — value-weighted across its bond and securitized long positions · as of 2026-05-31
Share of the fund's debt by how its coupon behaves — the fact that decides whether a rate move reaches this portfolio at all.
| Fixed rate | 100.0% |
Share of the fund's debt value in each maturity band, shortest first.
| 10y+ | 100.0% |
Based on what filers reported; a filer that never reported a flag also reads as none.
Risk profile
Interest-rate and credit-spread sensitivity, both in years · as of 2026Q2
This fund filed the credit-spread disclosure and reported no sensitivity — measured, and the answer is none.
Where the loss would come from. The two shocks are the same size, so this is the balance of the fund's two sensitivities rather than a bet on one moving more.
| Interest rates | 100% |
Filers report the impact of a 0.01% move only, so the total is our own scaling of that one number and overstates the loss on most bonds — read it as approximate, never as precise. The two sensitivities overlap rather than add up: they measure the same positions against different shocks, which is why the durations above are shown side by side and never summed.
Share of duration at each point, shortest first. A positive figure loses value when spreads widen; a negative one offsets — a credit hedge.
| 3 mo | 0.01 yr | 0% |
| 1 yr | 0.18 yr | 1% |
| 5 yr | 0.73 yr | 5% |
| 10 yr | 6.27 yr | 47% |
| 30 yr | 6.27 yr | 47% |
Show the numbers
| Tenor | Rate yrs | IG yrs | HY yrs | IG $/bp | HY $/bp |
|---|---|---|---|---|---|
| 3 mo | +0.01 | +0.00 | +0.00 | $0 | $0 |
| 1 yr | +0.18 | +0.00 | +0.00 | $0 | $0 |
| 5 yr | +0.73 | +0.00 | +0.00 | $0 | $0 |
| 10 yr | +6.27 | +0.00 | +0.00 | $0 | $0 |
| 30 yr | +6.27 | +0.00 | +0.00 | $0 | $0 |
Dollar change per 1bp of spread movement, as filed and sign-anchored. A blank cell was not filed; a zero was.
Understand how this fund fits with the rest.
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