BUFOX vs. BUFBX
BUFOX (Buffalo Early Stage Growth Fund) and BUFBX (Buffalo Flexible Income Fund) are both mutual funds - BUFOX is a Small Cap Growth Equities fund managed by Buffalo, while BUFBX is a Large Cap Value Equities fund managed by Buffalo. Over the past 10 years, BUFOX returned 10.18%/yr vs 9.85%/yr for BUFBX. Their 0.66 correlation means they have sometimes moved together and sometimes differently. BUFOX charges 1.46%/yr vs 1.01%/yr for BUFBX.
Performance
BUFOX vs. BUFBX - Performance Comparison
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Returns By Period
In the year-to-date period, BUFOX achieves a 12.18% return, which is significantly lower than BUFBX's 14.30% return. Both investments have delivered pretty close results over the past 10 years, with BUFOX having a 10.18% annualized return and BUFBX not far behind at 9.85%.
BUFOX
- 1D
- 1.84%
- 1M
- -5.15%
- 6M
- 9.23%
- YTD
- 12.18%
- 1Y
- 18.95%
- 3Y*
- 5.50%
- 5Y*
- -2.22%
- 10Y*
- 10.18%
- ALL TIME*
- 8.28%
BUFBX
- 1D
- 0.13%
- 1M
- 3.53%
- 6M
- 9.54%
- YTD
- 14.30%
- 1Y
- 20.62%
- 3Y*
- 12.64%
- 5Y*
- 11.50%
- 10Y*
- 9.85%
- ALL TIME*
- 7.88%
Liquidity Comparison
| Position | Avg. Volume Value (2W) | Avg. Volume Value (1M) | Avg. Volume Value (3M) |
|---|---|---|---|
| $0.00 | $0.00 | $0.00 | |
| $0.00 | $0.00 | $0.00 |
BUFOX vs. BUFBX - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
BUFOX Buffalo Early Stage Growth Fund | 12.18% | 3.09% | 7.52% | 9.83% | -30.78% | 7.43% | 47.85% | 34.06% | -3.78% | 27.03% |
BUFBX Buffalo Flexible Income Fund | 14.30% | 10.37% | 10.26% | 7.42% | 3.97% | 29.97% | -2.27% | 18.76% | -7.01% | 13.20% |
Correlation
The correlation between BUFOX and BUFBX is 0.23, which is low. Their historical price movements had little consistent relationship.
| Correlation | |
|---|---|
Correlation (1Y) Focuses on recent behavior, but can change the most. | 0.23 |
Correlation (3Y) Balances recent behavior with more history. | 0.48 |
Correlation (5Y) Shows whether the relationship held over a longer period. | 0.56 |
Correlation (10Y) Provides a long-term view across more market conditions. | 0.60 |
Correlation (All Time) Calculated using the full available price history since May 25, 2004 | 0.66 |
Over the past year, the correlation between BUFOX and BUFBX has dropped to 0.23 - well below their long-term average of 0.66, suggesting their price drivers have been diverging.
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Return for Risk
BUFOX vs. BUFBX — Risk / Return Rank
BUFOX
BUFBX
BUFOX vs. BUFBX - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for Buffalo Early Stage Growth Fund (BUFOX) and Buffalo Flexible Income Fund (BUFBX). Risk-adjusted metrics are performance indicators that assess an investment's returns in relation to its risk, enabling a more accurate comparison of different investment options.
Values are calculated on a 1-year rolling basis and updated daily. Risk-adjusted metrics are more stable over longer periods — use the period switch above to explore them.
| BUFOX | BUFBX | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | -1.28 | ||
| Sortino ratioReturn per unit of downside risk | -1.65 | ||
| Omega ratioGain probability vs. loss probability | 1.13 | 1.36 | -0.23 |
| Calmar ratioReturn relative to maximum drawdown | 1.10 | 4.42 | -3.32 |
| Martin ratioReturn relative to average drawdown | 3.17 | 14.28 | -11.11 |
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Drawdowns
BUFOX vs. BUFBX - Drawdown Comparison
The maximum BUFOX drawdown since its inception was -69.71%, which is greater than BUFBX's maximum drawdown of -39.78%. Use the drawdown chart below to compare losses from any high point for BUFOX and BUFBX.
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Drawdown Indicators
| BUFOX | BUFBX | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -69.71% | -39.78% | -29.93% |
Max Drawdown (1Y)Largest decline over 1 year | -15.52% | -4.45% | -11.07% |
Max Drawdown (3Y)Largest decline over 3 years | -24.62% | -12.85% | -11.77% |
Max Drawdown (5Y)Largest decline over 5 years | -43.17% | -14.67% | -28.50% |
Max Drawdown (10Y)Largest decline over 10 years | -43.17% | -35.51% | -7.66% |
Current DrawdownCurrent decline from peak | -13.72% | 0.00% | -13.72% |
Average DrawdownAverage peak-to-trough decline | -16.01% | -4.71% | -11.30% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 5.38% | 1.38% | +4.00% |
Volatility
BUFOX vs. BUFBX - Volatility Comparison
Buffalo Early Stage Growth Fund (BUFOX) has a higher volatility of 6.47% compared to Buffalo Flexible Income Fund (BUFBX) at 3.73%. This indicates that BUFOX's price experiences larger fluctuations and is considered to be riskier than BUFBX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| BUFOX | BUFBX | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 6.47% | 3.73% | +2.74% |
Volatility (6M)Calculated over the trailing 6-month period | 17.35% | 7.75% | +9.60% |
Volatility (1Y)Calculated over the trailing 1-year period | 23.25% | 9.81% | +13.44% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 23.03% | 13.47% | +9.56% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 22.43% | 15.60% | +6.83% |
BUFOX vs. BUFBX - Expense Ratio Comparison
BUFOX has a 1.46% expense ratio, which is higher than BUFBX's 1.01% expense ratio.
Dividends
BUFOX vs. BUFBX - Dividend Comparison
BUFOX's dividend yield for the trailing twelve months is around 4.55%, less than BUFBX's 7.97% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
BUFBX Buffalo Flexible Income Fund | 7.97% | 9.10% | 3.77% | 3.48% | 4.16% | 5.57% | 3.33% | 2.73% | 6.01% | 5.49% | 2.39% | 3.67% |
BUFOX Buffalo Early Stage Growth Fund | 4.55% | 5.10% | 0.00% | 0.00% | 1.20% | 15.83% | 11.19% | 4.77% | 14.50% | 20.01% | 8.35% | 8.53% |
Frequently Asked Questions
BUFOX and BUFBX have a correlation of 0.23, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
BUFOX has higher volatility (6.47%) compared to BUFBX (3.73%). In terms of maximum drawdown, BUFOX dropped -69.71% vs BUFBX's -39.78%.
BUFBX currently has the higher Sharpe Ratio (2.02 vs 0.73), meaning it's delivered slightly more return per unit of risk over the trailing 12 months. However, this ranking shifts over time - use the Risk/Return Score above for a more comprehensive view that combines Sharpe, Sortino, and other measures used by quantitative funds.
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