BIIGX Performance — Buffalo Growth Fund, Institutional Class
Data updated: 2026-08-21
BIIGX returned −1.65% year to date and +7.46% over one year to Jun 2026. Annualised returns are +15.21% over 3 years and +8.51% over 5 years. The fund trailed its US Large Growth category average: $100 invested three years ago grew to $153, against $175 for the category, and to $107 over one year, against $117. Volatility over the past three years was 16.51% a year. In the 12 months to Jun 2026 the fund lost a net $12.8M, and assets reached $171.83M.
BIIGX Growth of $100
What $100 invested in Buffalo 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 | BIIGX | Category average |
|---|---|---|
| 1 year (Jul 2025 – Jun 2026) | $107 | $117 |
| 3 years (Jul 2023 – Jun 2026) | $153 | $175 |
| 5 years (Jul 2021 – Jun 2026) | $150 | $166 |
| Since data start (Jul 2019 – Jun 2026) | $230 | $271 |
BIIGX Trailing Returns
Total returns to Jun 2026, from SEC N-PORT.
| Period | Total return |
|---|---|
| YTD | −1.65% |
| 1 year | +7.46% |
| 3 years (annualised) | +15.21% |
| 5 years (annualised) | +8.51% |
BIIGX Annual Returns
Calendar-year total returns of Buffalo Growth Fund, compounded from monthly SEC N-PORT returns. Partial years show the months covered.
| Year | Total return |
|---|---|
| 2026 (Jan–Jun) | −1.65% |
| 2025 | +14.04% |
| 2024 | +25.33% |
| 2023 | +42.79% |
| 2022 | −31.04% |
| 2021 | +21.85% |
| 2020 | +28.47% |
| 2019 (Jul–Dec) | +6.06% |
BIIGX 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 | −1.5% | −6.5% | −5.2% | +12.3% | +4.4% | −3.9% | — | — | — | — | — | — |
| 2025 | +2.5% | −3.8% | −7.7% | 0.0% | +8.2% | +6.0% | +4.1% | +0.9% | +1.9% | +3.2% | −0.6% | −0.6% |
| 2024 | +2.7% | +5.0% | +1.9% | −5.4% | +4.4% | +6.3% | −0.4% | +1.6% | +2.1% | −0.4% | +5.8% | −0.3% |
| 2023 | +9.8% | −2.2% | +7.3% | +2.3% | +5.1% | +6.0% | +4.2% | −1.5% | −6.3% | −2.9% | +11.4% | +4.7% |
| 2022 | −7.6% | −4.9% | +3.4% | −12.2% | −2.2% | −7.9% | +10.3% | −5.0% | −11.0% | +4.8% | +5.7% | −7.0% |
| 2021 | −2.4% | +1.6% | +1.6% | +7.5% | −1.1% | +4.6% | +4.0% | +2.3% | −5.3% | +6.7% | −2.5% | +3.7% |
| 2020 | +1.8% | −8.1% | −10.2% | +14.1% | +6.4% | +2.6% | +6.1% | +8.0% | −4.4% | −3.1% | +10.6% | +4.7% |
| 2019 | — | — | — | — | — | — | +0.6% | −0.8% | −1.1% | +1.9% | +2.9% | +2.5% |
BIIGX Risk
Risk measures from monthly returns over Jul 2023 – Jun 2026.
- 3-year volatility (annualised): 16.51%
- 3-year Sharpe ratio: 0.65 (vs 4.5% risk-free rate)
- Best month: +12.27% (Apr 2026)
- Worst month: −7.67% (Mar 2025)
BIIGX Fund Flows
Monthly money in and out of Buffalo Growth Fund, from SEC Form N-PORT.
- 12-month net flow: −$12.8M
- 12-month gross sales (incl. reinvestments): $15.3M
- Sales ÷ redemptions: 0.55×
| Month | Sales | Redemptions | Net flow |
|---|---|---|---|
| Jun 2026 | $530K | $2.7M | −$2.2M |
| May 2026 | $204K | $5.1M | −$4.9M |
| Apr 2026 | $293K | $3.2M | −$2.9M |
| Mar 2026 | $280K | $2.4M | −$2.1M |
| Feb 2026 | $397K | $2.5M | −$2.1M |
| Jan 2026 | $520K | $2.2M | −$1.6M |
| Dec 2025 | $11.3M | $1.8M | $9.5M |
| Nov 2025 | $489K | $2.1M | −$1.6M |
| Oct 2025 | $273K | $1.8M | −$1.6M |
| Sep 2025 | $235K | $1.5M | −$1.2M |
| Aug 2025 | $520K | $1.3M | −$777K |
| Jul 2025 | $322K | $1.7M | −$1.3M |
BIIGX Assets Under Management
Net assets of Buffalo Growth Fund by report date, from SEC N-PORT filings.
| Report date | Net assets |
|---|---|
| 2026-06-30 | $171.83M |
| 2026-03-31 | $161.39M |
| 2025-12-31 | $190.98M |
| 2025-09-30 | $191.87M |
| 2025-06-30 | $182.42M |
| 2025-03-31 | $162.21M |
| 2024-12-31 | $182.33M |
| 2024-09-30 | $178.49M |
| 2024-06-30 | $178.00M |
| 2024-03-31 | $178.64M |
| 2023-12-31 | $163.23M |
| 2023-09-30 | $147.76M |
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.