VIITX Performance — Vanguard Institutional Intermediate-Term Bond Fund, Institutional Plus Shares
Data updated: 2026-08-28
VIITX returned +0.80% year to date and +3.99% over one year to Jun 2026. Annualised returns are +4.98% over 3 years and +1.47% over 5 years. Against its Intermediate Core Bond category average the fund came out ahead over three years but behind over one: $100 invested three years ago grew to $116, against $115 for the category, and to $104 over one year, against $104. Volatility over the past three years was 3.68% a year. In the 12 months to Jun 2026 the fund lost a net $336.6M, and assets reached $31.17B.
VIITX Growth of $100
What $100 invested in Vanguard Institutional Intermediate-Term Bond Fund grew to, compounded from monthly returns reported on SEC Form N-PORT, against the Intermediate Core Bond category average over the same months.
| Period | VIITX | Category average |
|---|---|---|
| 1 year (Jul 2025 – Jun 2026) | $104 | $104 |
| 3 years (Jul 2023 – Jun 2026) | $116 | $115 |
| 5 years (Jul 2021 – Jun 2026) | $108 | $102 |
| Since data start (Jul 2019 – Jun 2026) | $115 | $112 |
VIITX Trailing Returns
Total returns to Jun 2026, from SEC N-PORT.
| Period | Total return |
|---|---|
| YTD | +0.80% |
| 1 year | +3.99% |
| 3 years (annualised) | +4.98% |
| 5 years (annualised) | +1.47% |
VIITX Annual Returns
Calendar-year total returns of Vanguard Institutional Intermediate-Term Bond Fund, compounded from monthly SEC N-PORT returns. Partial years show the months covered.
| Year | Total return |
|---|---|
| 2026 (Jan–Jun) | +0.80% |
| 2025 | +7.22% |
| 2024 | +3.25% |
| 2023 | +5.30% |
| 2022 | −7.94% |
| 2021 | −1.29% |
| 2020 | +6.16% |
| 2019 (Jul–Dec) | +1.75% |
VIITX Monthly Returns
Monthly total returns as reported on SEC Form N-PORT.
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | +0.4% | +1.1% | −1.3% | +0.3% | +0.2% | +0.2% | — | — | — | — | — | — |
| 2025 | +0.6% | +1.4% | +0.3% | +0.7% | −0.3% | +1.1% | −0.1% | +1.3% | +0.6% | +0.5% | +0.7% | +0.1% |
| 2024 | +0.1% | −0.9% | +0.7% | −1.5% | +1.3% | +0.8% | +1.9% | +1.2% | +1.1% | −1.7% | +0.8% | −0.7% |
| 2023 | +2.0% | −1.7% | +1.9% | +0.5% | −0.6% | −0.5% | +0.3% | −0.2% | −1.4% | −0.8% | +3.1% | +2.6% |
| 2022 | −1.3% | −0.8% | −2.2% | −2.0% | +0.8% | −1.1% | +1.7% | −1.9% | −2.9% | −0.7% | +2.3% | −0.1% |
| 2021 | −0.1% | −0.7% | −0.6% | +0.5% | +0.2% | 0.0% | +0.6% | −0.1% | −0.4% | −0.5% | 0.0% | −0.1% |
| 2020 | +1.2% | +1.2% | +0.1% | +1.1% | +0.8% | +0.5% | +0.6% | −0.1% | 0.0% | −0.1% | +0.4% | +0.2% |
| 2019 | — | — | — | — | — | — | +0.2% | +1.5% | −0.3% | +0.4% | −0.1% | +0.1% |
VIITX Risk
Risk measures from monthly returns over Jul 2023 – Jun 2026.
- 3-year volatility (annualised): 3.68%
- 3-year Sharpe ratio: 0.13 (vs 4.5% risk-free rate)
- Best month: +3.14% (Nov 2023)
- Worst month: −1.66% (Oct 2024)
VIITX Fund Flows
Monthly money in and out of Vanguard Institutional Intermediate-Term Bond Fund, from SEC Form N-PORT.
- 12-month net flow: −$336.6M
- 12-month gross sales (incl. reinvestments): $3.2B
- Sales ÷ redemptions: 0.91×
| Month | Sales | Redemptions | Net flow |
|---|---|---|---|
| Jun 2026 | $387.3M | $87.9M | $299.4M |
| May 2026 | $318.5M | $117.3M | $201.1M |
| Apr 2026 | $374.7M | $127.8M | $246.9M |
| Mar 2026 | $110.2M | $11.4M | $98.9M |
| Feb 2026 | $118.0M | $259.4M | −$141.4M |
| Jan 2026 | $563.0M | $988.1M | −$425.1M |
| Dec 2025 | $235.6M | $778.5M | −$542.9M |
| Nov 2025 | $132.9M | $13.3M | $119.7M |
| Oct 2025 | $572.4M | $168.3M | $404.1M |
| Sep 2025 | $185.9M | $164.8M | $21.1M |
| Aug 2025 | $122.3M | $293.2M | −$170.9M |
| Jul 2025 | $119.5M | $566.8M | −$447.4M |
VIITX Assets Under Management
Net assets of Vanguard Institutional Intermediate-Term Bond Fund by report date, from SEC N-PORT filings.
| Report date | Net assets |
|---|---|
| 2026-06-30 | $31.17B |
| 2026-03-31 | $30.56B |
| 2025-12-31 | $31.21B |
| 2025-09-30 | $31.17B |
| 2025-06-30 | $31.57B |
| 2025-03-31 | $30.43B |
| 2024-12-31 | $30.07B |
| 2024-09-30 | $31.41B |
| 2024-06-30 | $30.79B |
| 2024-03-31 | $31.47B |
| 2023-12-31 | $31.75B |
| 2023-09-30 | $30.25B |
For information only. Not investment advice: figures are as reported in SEC filings and may contain errors or be out of date. Past performance does not guarantee future results.