LCGNX Performance — William Blair Large Cap Growth Fund, Class N
Data updated: 2026-08-14
LCGNX returned +0.55% year to date and +5.97% over one year to Jun 2026. Annualised returns are +16.45% over 3 years and +8.31% over 5 years. The fund trailed its US Large Growth category average: $100 invested three years ago grew to $158, against $175 for the category, and to $106 over one year, against $117. Volatility over the past three years was 17.22% a year. In the 12 months to Jun 2026 the fund lost a net $833.7M, and assets reached $1.87B.
LCGNX Growth of $100
What $100 invested in William Blair Large Cap Growth Fund grew to, compounded from monthly returns reported on SEC Form N-PORT, against the US Large Growth category average over the same months.
| Period | LCGNX | Category average |
|---|---|---|
| 1 year (Jul 2025 – Jun 2026) | $106 | $117 |
| 3 years (Jul 2023 – Jun 2026) | $158 | $175 |
| 5 years (Jul 2021 – Jun 2026) | $149 | $166 |
| Since data start (Jul 2019 – Jun 2026) | $254 | $271 |
LCGNX Trailing Returns
Total returns to Jun 2026, from SEC N-PORT.
| Period | Total return |
|---|---|
| YTD | +0.55% |
| 1 year | +5.97% |
| 3 years (annualised) | +16.45% |
| 5 years (annualised) | +8.31% |
LCGNX Annual Returns
Calendar-year total returns of William Blair Large Cap Growth Fund, compounded from monthly SEC N-PORT returns. Partial years show the months covered.
| Year | Total return |
|---|---|
| 2026 (Jan–Jun) | +0.55% |
| 2025 | +11.35% |
| 2024 | +25.78% |
| 2023 | +40.10% |
| 2022 | −32.62% |
| 2021 | +28.03% |
| 2020 | +36.27% |
| 2019 (Jul–Dec) | +9.59% |
LCGNX 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 | −2.0% | −5.6% | −5.4% | +12.9% | +6.8% | −4.6% | — | — | — | — | — | — |
| 2025 | +1.8% | −4.3% | −7.9% | +0.5% | +9.2% | +7.2% | +3.5% | +0.5% | +3.3% | +2.5% | −2.5% | −1.9% |
| 2024 | +4.1% | +7.7% | +2.4% | −4.6% | +3.6% | +6.1% | −1.2% | +0.2% | +2.3% | −0.3% | +6.1% | −2.4% |
| 2023 | +8.4% | −3.7% | +7.0% | +3.0% | +3.9% | +4.6% | +2.4% | −0.2% | −4.7% | −0.7% | +11.3% | +4.1% |
| 2022 | −10.5% | −4.0% | +2.0% | −13.8% | −1.5% | −8.5% | +12.8% | −6.3% | −10.2% | +4.8% | +6.7% | −6.9% |
| 2021 | −3.2% | +4.3% | +1.1% | +6.9% | −0.2% | +4.9% | +3.7% | +2.7% | −5.2% | +9.0% | +0.2% | +1.6% |
| 2020 | +2.7% | −6.4% | −9.2% | +14.4% | +6.5% | +3.1% | +6.9% | +8.0% | −3.9% | −4.1% | +11.6% | +4.7% |
| 2019 | — | — | — | — | — | — | +2.6% | −0.5% | −1.0% | +1.7% | +3.1% | +3.3% |
LCGNX Risk
Risk measures from monthly returns over Jul 2023 – Jun 2026.
- 3-year volatility (annualised): 17.22%
- 3-year Sharpe ratio: 0.69 (vs 4.5% risk-free rate)
- Best month: +12.88% (Apr 2026)
- Worst month: −7.90% (Mar 2025)
LCGNX Fund Flows
Monthly money in and out of William Blair Large Cap Growth Fund, from SEC Form N-PORT.
- 12-month net flow: −$833.7M
- 12-month gross sales (incl. reinvestments): $525.4M
- Sales ÷ redemptions: 0.39×
| Month | Sales | Redemptions | Net flow |
|---|---|---|---|
| Jun 2026 | $38.6M | $102.3M | −$63.7M |
| May 2026 | $13.3M | $78.3M | −$65.0M |
| Apr 2026 | $23.6M | $116.2M | −$92.6M |
| Mar 2026 | $29.3M | $458.1M | −$428.8M |
| Feb 2026 | $31.9M | $87.4M | −$55.5M |
| Jan 2026 | $31.7M | $52.5M | −$20.7M |
| Dec 2025 | $220.0M | $67.8M | $152.2M |
| Nov 2025 | $26.7M | $77.2M | −$50.5M |
| Oct 2025 | $27.2M | $66.7M | −$39.5M |
| Sep 2025 | $24.1M | $75.1M | −$50.9M |
| Aug 2025 | $28.7M | $96.4M | −$67.6M |
| Jul 2025 | $30.2M | $81.1M | −$50.9M |
LCGNX Assets Under Management
Net assets of William Blair Large Cap Growth Fund by report date, from SEC N-PORT filings.
| Report date | Net assets |
|---|---|
| 2026-06-30 | $1.87B |
| 2026-03-31 | $1.82B |
| 2025-12-31 | $2.63B |
| 2025-09-30 | $2.83B |
| 2025-06-30 | $2.79B |
| 2025-03-31 | $2.46B |
| 2024-12-31 | $2.80B |
| 2024-09-30 | $2.83B |
| 2024-06-30 | $2.40B |
| 2024-03-31 | $2.30B |
| 2023-12-31 | $1.63B |
| 2023-09-30 | $1.47B |
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.