WVMIX Performance — William Blair Mid Cap Value Fund, Class I
Data updated: 2026-08-14
WVMIX returned +15.00% year to date and +21.06% over one year to Jun 2026. The annualised 3-year return is +13.48%. Against its US Mid-Cap Value category average the fund came out behind over three years but ahead over one: $100 invested three years ago grew to $146, against $148 for the category, and to $121 over one year, against $120. Volatility over the past three years was 13.81% a year. In the 12 months to Jun 2026 the fund lost a net $396K, and assets reached $1.55M.
WVMIX Growth of $100
What $100 invested in William Blair Mid Cap Value Fund grew to, compounded from monthly returns reported on SEC Form N-PORT, against the US Mid-Cap Value category average over the same months.
| Period | WVMIX | Category average |
|---|---|---|
| 1 year (Jul 2025 – Jun 2026) | $121 | $120 |
| 3 years (Jul 2023 – Jun 2026) | $146 | $148 |
| Since data start (Mar 2022 – Jun 2026) | $144 | $148 |
WVMIX Trailing Returns
Total returns to Jun 2026, from SEC N-PORT.
| Period | Total return |
|---|---|
| YTD | +15.00% |
| 1 year | +21.06% |
| 3 years (annualised) | +13.48% |
WVMIX Annual Returns
Calendar-year total returns of William Blair Mid Cap Value Fund, compounded from monthly SEC N-PORT returns. Partial years show the months covered.
| Year | Total return |
|---|---|
| 2026 (Jan–Jun) | +15.00% |
| 2025 | +7.32% |
| 2024 | +10.72% |
| 2023 | +13.23% |
| 2022 (Mar–Dec) | −7.15% |
WVMIX 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 | +3.4% | +2.2% | −4.3% | +6.7% | +2.6% | +4.0% | — | — | — | — | — | — |
| 2025 | +4.2% | −1.6% | −3.5% | −3.0% | +3.5% | +2.6% | −1.4% | +4.4% | −0.5% | −2.6% | +4.4% | +1.1% |
| 2024 | −0.8% | +3.6% | +5.2% | −5.7% | +1.6% | −2.0% | +6.5% | +1.9% | +1.4% | −1.7% | +7.2% | −6.1% |
| 2023 | +8.5% | −3.0% | −4.1% | +0.8% | −4.7% | +9.3% | +3.3% | −3.2% | −3.6% | −4.4% | +8.0% | +7.4% |
| 2022 | — | — | +2.6% | −6.3% | +2.5% | −11.3% | +8.2% | −4.5% | −9.1% | +10.3% | +7.2% | −4.4% |
WVMIX Risk
Risk measures from monthly returns over Jul 2023 – Jun 2026.
- 3-year volatility (annualised): 13.81%
- 3-year Sharpe ratio: 0.65 (vs 4.5% risk-free rate)
- Best month: +8.03% (Nov 2023)
- Worst month: −6.06% (Dec 2024)
WVMIX Fund Flows
Monthly money in and out of William Blair Mid Cap Value Fund, from SEC Form N-PORT.
- 12-month net flow: −$396K
- 12-month gross sales (incl. reinvestments): $72K
- Sales ÷ redemptions: 0.15×
| Month | Sales | Redemptions | Net flow |
|---|---|---|---|
| Jun 2026 | $50 | $0 | $50 |
| May 2026 | $50 | $0 | $50 |
| Apr 2026 | $50 | $0 | $50 |
| Mar 2026 | $51K | $0 | $51K |
| Feb 2026 | $50 | $63K | −$63K |
| Jan 2026 | $50 | $0 | $50 |
| Dec 2025 | $20K | $2K | $18K |
| Nov 2025 | $50 | $0 | $50 |
| Oct 2025 | $50 | $403K | −$402K |
| Sep 2025 | $50 | $0 | $50 |
| Aug 2025 | $50 | $0 | $50 |
| Jul 2025 | $50 | $0 | $50 |
WVMIX Assets Under Management
Net assets of William Blair Mid Cap Value Fund by report date, from SEC N-PORT filings.
| Report date | Net assets |
|---|---|
| 2026-06-30 | $1.55M |
| 2026-03-31 | $1.36M |
| 2025-12-31 | $1.35M |
| 2025-09-30 | $1.73M |
| 2025-06-30 | $1.68M |
| 2025-03-31 | $1.66M |
| 2024-12-31 | $1.76M |
| 2024-09-30 | $1.78M |
| 2024-06-30 | $1.61M |
| 2024-03-31 | $1.72M |
| 2023-12-31 | $1.46M |
| 2023-09-30 | $1.57M |
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.