VANGUARD INSTITUTIONAL SHORT-TERM BOND FUND
VANGUARD MALVERN FUNDS · 1 share class
Fund classification
Classified from what the fund holds · as of 2026 Q2
VANGUARD INSTITUTIONAL SHORT-TERM BOND FUND is an actively managed U.S. bond fund.
- Asset class
- Bonds
- Region
- United States
- Management
- Actively managed
- Fund type
- Open-end fund
- Credit quality
- Investment grade
- Rate sensitivity
- Short duration
Fund profile
As filed in the prospectus · 2026 Q1
Vanguard Institutional Short-Term Bond Fund (the Fund) seeks to provide a high level of current income consistent with the maintenance of principal and liquidity.
The fund actively manages a diversified portfolio of high-quality short-term bonds, targeting an average maturity of 1 to 4 years and holding securities rated A3 or better. It invests at least 80% of assets in bonds including corporates, Treasuries, government agencies, foreign sovereign debt, and mortgage-backed securities. The fund may use derivatives and take short positions in mortgage-backed securities to implement its strategy.
| Share class | Expense ratio |
|---|---|
| VISTX | 0.02% |
Portfolio turnover 126.00% · as of 2026 Q1
Allocation
Asset groups · long / short shown separately, never netted · 2026 Q2
| Bonds | 49.62% |
| Securitized | 49.38% |
| Cash & short-term | 0.37% |
| Derivatives | -0.01% |
The outer band is exposure held short — written against the portfolio rather than part of it, which is why it sits outside the ring and why the two are never netted into one figure.
Derivatives are shown at market value, not notional exposure.
Sector allocation
The same holdings as Allocation above, grouped by market sector instead of asset type · as of 2026 Q2
| Securitized | 49.7% |
| Government | 18.4% |
| Financials | 12.0% |
| International | 6.3% |
| 12 smaller | 13.6% |
Government, Securitized and Cash are non-corporate buckets; International is foreign holdings we don’t sector-classify, and Other is the residual (held funds, unresolved names).
Latest quarter
What changed since the fund's previous filing
Largest new: United States Treasury Bill, United States Treasury Note/Bond ×5, Fannie Mae Pool, NVIDIA Corp
Largest exited: United States Treasury Bill, United States Treasury Note/Bond ×7
Return profile
Total return as filed — price change plus distributions reinvested · trailing figures to Apr 2026
May 2026 and Jun 2026 have been filed since the trailing figures were struck, so they are not in the table above or the curve — every figure here shares one cut-off, which is what makes them comparable with other funds.
Debt profile
What this fund holds — value-weighted across its bond and securitized long positions · as of 2026-06-30
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 | 75.6% |
| Floating rate | 22.6% |
| Zero-coupon or unclassified | 1.8% |
Share of the fund's debt value in each maturity band, shortest first.
| <1y | 4.6% |
| 1-3y | 47.6% |
| 3-5y | 26.1% |
| 5-10y | 11.6% |
| 10y+ | 10.1% |
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
Most of this fund’s sensitivity is to interest rates, with credit spreads carrying nearly as much.
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 | 59% |
| Credit spreads | 41% |
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 the fund's spread duration carried by each credit tier.
| Investment grade | +1.33 yr |
| High yield | +0.00 yr |
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 | 0.04 yr | 2% |
| 1 yr | 1.22 yr | 63% |
| 5 yr | 0.50 yr | 26% |
| 10 yr | 0.16 yr | 8% |
| 30 yr | 0.01 yr | 0% |
| 3 mo | 0.04 yr | 3% |
| 1 yr | 0.70 yr | 53% |
| 5 yr | 0.56 yr | 42% |
| 10 yr | 0.02 yr | 2% |
| 30 yr | 0.01 yr | 1% |
The two bands measure the same positions against different shocks and do not add — a Treasury carries rate duration and no spread duration, a floating-rate credit the reverse. Rate tenors are also summed across every currency the fund discloses.
Show the numbers
| Tenor | Rate yrs | IG yrs | HY yrs | IG $/bp | HY $/bp |
|---|---|---|---|---|---|
| 3 mo | +0.04 | +0.04 | +0.00 | $24.6k | $9 |
| 1 yr | +1.22 | +0.70 | +0.00 | $474.0k | $152 |
| 5 yr | +0.50 | +0.56 | +0.00 | $377.6k | $19 |
| 10 yr | +0.16 | +0.02 | +0.00 | $13.6k | $0 |
| 30 yr | +0.01 | +0.01 | +0.00 | $7.3k | $0 |
Dollar change per 1bp of spread movement, as filed and sign-anchored. A blank cell was not filed; a zero was.
Duration contribution in years, summing to the fund's 1.93 yr.
This is where the fund's rate exposure sits, not its currency risk — most international bond funds hedge the currency back to dollars, and the size of those hedges is not in the filing. Tenors are also summed across curves, so a 5-year JPY point and a 5-year USD point are added together.
Holdings
By % of NAV · equity positions carry filed share counts · every resolvable issuer links to its company page
| Ticker | Issuer | %NAV | Value | Shares |
|---|---|---|---|---|
| — | United States Treasury Bill0.00% · due 2027-06-10 | 1.82% | $122.60M | — |
| — | United States Treasury Note/Bond3.88% · due 2028-07-15 | 1.40% | $94.30M | — |
| — | United States Treasury Note/Bond1.25% · due 2028-03-31 | 1.19% | $79.93M | — |
| — | United States Treasury Note/Bond1.25% · due 2028-04-30 | 1.14% | $76.92M | — |
| — | United States Treasury Note/Bond3.63% · due 2028-03-31 | 1.01% | $67.84M | — |
| — | United States Treasury Note/Bond3.88% · due 2027-07-31 | 0.95% | $63.97M | — |
| — | United States Treasury Note/Bond1.25% · due 2028-05-31 | 0.94% | $63.50M | — |
| — | United States Treasury Note/Bond4.38% · due 2027-07-15 | 0.92% | $62.13M | — |
| — | United States Treasury Note/Bond3.50% · due 2028-01-31 | 0.82% | $55.41M | — |
| — | United States Treasury Note/Bond3.75% · due 2028-04-15 | 0.77% | $51.61M | — |
Top 10 positions are 10.95% of net assets, top 25 19.53%, across 613 issuers.
See more of this fund's book
More positions with filed share counts, and the quarter-over-quarter change list rather than the largest few — free with an account, no card required.
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