VMFGX Performance — Vanguard S&P Mid-Cap 400 Growth Index Fund, Institutional Shares
Data updated: 2026-07-29
VMFGX returned +17.89% year to date and +30.35% over one year to May 2026. Annualised returns are +19.25% over 3 years and +8.35% over 5 years. The fund beat its US Mid-Cap Growth category average: $100 invested three years ago grew to $170, against $157 for the category, and to $130 over one year, against $119. Volatility over the past three years was 16.76% a year. In the 12 months to May 2026 the fund took in a net $202.6M, and assets reached $1.83B.
VMFGX Growth of $100
What $100 invested in Vanguard S&P Mid-Cap 400 Growth Index Fund grew to, compounded from monthly returns reported on SEC Form N-PORT, against the US Mid-Cap Growth category average over the same months.
| Period | VMFGX | Category average |
|---|---|---|
| 1 year (Jun 2025 – May 2026) | $130 | $119 |
| 3 years (Jun 2023 – May 2026) | $170 | $157 |
| 5 years (Jun 2021 – May 2026) | $149 | $129 |
| Since data start (Sep 2019 – May 2026) | $220 | $197 |
VMFGX Trailing Returns
Total returns to May 2026, from SEC N-PORT.
| Period | Total return |
|---|---|
| YTD | +17.89% |
| 1 year | +30.35% |
| 3 years (annualised) | +19.25% |
| 5 years (annualised) | +8.35% |
VMFGX Annual Returns
Calendar-year total returns of Vanguard S&P Mid-Cap 400 Growth Index Fund, compounded from monthly SEC N-PORT returns. Partial years show the months covered.
| Year | Total return |
|---|---|
| 2026 (Jan–May) | +17.89% |
| 2025 | +7.43% |
| 2024 | +15.86% |
| 2023 | +17.40% |
| 2022 | −18.98% |
| 2021 | +18.84% |
| 2020 | +22.61% |
| 2019 (Sep–Dec) | +8.08% |
VMFGX 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 | +4.0% | +5.8% | −5.5% | +8.1% | +4.9% | — | — | — | — | — | — | — |
| 2025 | +3.7% | −5.6% | −6.4% | −0.2% | +6.2% | +3.4% | +2.2% | +2.3% | +1.0% | +0.3% | +1.2% | −0.2% |
| 2024 | −0.4% | +9.7% | +5.8% | −6.0% | +4.1% | −1.3% | +4.2% | −0.8% | +1.1% | −1.3% | +8.8% | −7.6% |
| 2023 | +7.1% | −0.8% | −1.1% | −0.5% | −2.8% | +8.7% | +3.8% | −2.1% | −4.8% | −4.9% | +7.6% | +7.4% |
| 2022 | −10.4% | +1.0% | +0.5% | −7.6% | −0.8% | −10.0% | +12.7% | −3.4% | −8.8% | +9.4% | +5.7% | −6.0% |
| 2021 | +1.8% | +4.1% | +2.4% | +4.2% | −1.8% | +1.1% | +1.0% | +1.4% | −4.3% | +7.6% | −3.6% | +4.1% |
| 2020 | −1.2% | −8.5% | −16.8% | +14.0% | +8.9% | +1.4% | +6.1% | +3.3% | −2.4% | +1.2% | +12.5% | +6.4% |
| 2019 | — | — | — | — | — | — | — | — | +1.3% | +0.9% | +3.2% | +2.5% |
VMFGX Risk
Risk measures from monthly returns over Jun 2023 – May 2026.
- 3-year volatility (annualised): 16.76%
- 3-year Sharpe ratio: 0.88 (vs 4.5% risk-free rate)
- Best month: +9.70% (Feb 2024)
- Worst month: −7.57% (Dec 2024)
VMFGX Fund Flows
Monthly money in and out of Vanguard S&P Mid-Cap 400 Growth Index Fund, from SEC Form N-PORT.
- 12-month net flow: $202.6M
- 12-month gross sales (incl. reinvestments): $574.5M
- Sales ÷ redemptions: 1.54×
| Month | Sales | Redemptions | Net flow |
|---|---|---|---|
| May 2026 | $28.9M | $11.4M | $17.6M |
| Apr 2026 | $49.4M | $32.6M | $16.8M |
| Mar 2026 | $137.7M | $99.8M | $37.9M |
| Feb 2026 | $36.0M | $77.3M | −$41.3M |
| Jan 2026 | $31.0M | $6.9M | $24.1M |
| Dec 2025 | $35.2M | $35.1M | $79K |
| Nov 2025 | $498K | $7.8M | −$7.3M |
| Oct 2025 | $545K | $10.4M | −$9.9M |
| Sep 2025 | $218.7M | $29.9M | $188.7M |
| Aug 2025 | $26.3M | $36.3M | −$10.0M |
| Jul 2025 | $5.4M | $10.1M | −$4.7M |
| Jun 2025 | $4.8M | $14.2M | −$9.4M |
VMFGX Assets Under Management
Net assets of Vanguard S&P Mid-Cap 400 Growth Index Fund by report date, from SEC N-PORT filings.
| Report date | Net assets |
|---|---|
| 2026-05-31 | $1.83B |
| 2026-02-28 | $1.64B |
| 2025-11-30 | $1.51B |
| 2025-08-31 | $1.31B |
| 2025-05-31 | $1.23B |
| 2025-02-28 | $1.25B |
| 2024-11-30 | $1.35B |
| 2024-08-31 | $1.23B |
| 2024-05-31 | $1.23B |
| 2024-02-29 | $1.11B |
| 2023-11-30 | $938.63M |
| 2023-08-31 | $962.60M |
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.