BUFMX vs. BUFEX
BUFMX (Buffalo Mid Cap Fund) and BUFEX (Buffalo Large Cap Fund) are both mutual funds - BUFMX is a Mid Cap Growth Equities fund managed by Buffalo, while BUFEX is a Large Cap Growth Equities fund managed by Buffalo. Over the past 10 years, BUFMX returned 7.58%/yr vs 15.19%/yr for BUFEX. Their correlation of 0.88 means they have usually moved in the same direction. BUFMX charges 1.02%/yr vs 0.93%/yr for BUFEX.
Performance
BUFMX vs. BUFEX - Performance Comparison
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Returns By Period
In the year-to-date period, BUFMX achieves a -3.71% return, which is significantly lower than BUFEX's 8.52% return. Over the past 10 years, BUFMX has underperformed BUFEX with an annualized return of 7.58%, while BUFEX has yielded a comparatively higher 15.19% annualized return.
BUFMX
- 1D
- 2.41%
- 1M
- -1.75%
- 6M
- 1.74%
- YTD
- -3.71%
- 1Y
- -10.07%
- 3Y*
- 2.91%
- 5Y*
- -1.13%
- 10Y*
- 7.58%
- ALL TIME*
- 7.65%
BUFEX
- 1D
- 1.96%
- 1M
- 1.92%
- 6M
- 10.17%
- YTD
- 8.52%
- 1Y
- 15.08%
- 3Y*
- 21.47%
- 5Y*
- 11.42%
- 10Y*
- 15.19%
- ALL TIME*
- 11.01%
Liquidity Comparison
| Position | Avg. Volume Value (2W) | Avg. Volume Value (1M) | Avg. Volume Value (3M) |
|---|---|---|---|
| $0.00 | $0.00 | $0.00 | |
BUFMX Buffalo Mid Cap Fund | $0.00 | $0.00 | $0.00 |
BUFMX vs. BUFEX - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
BUFMX Buffalo Mid Cap Fund | -3.71% | -1.68% | 6.73% | 26.92% | -27.89% | 14.39% | 34.24% | 37.96% | -7.29% | 13.59% |
BUFEX Buffalo Large Cap Fund | 8.52% | 16.27% | 28.86% | 40.39% | -28.64% | 25.55% | 28.08% | 31.76% | -1.60% | 24.86% |
Correlation
The correlation between BUFMX and BUFEX is 0.65, which is moderate. They have sometimes moved together and sometimes differently, sharing some price drivers without tracking each other closely.
| Correlation | |
|---|---|
Correlation (1Y) Focuses on recent behavior, but can change the most. | 0.65 |
Correlation (3Y) Balances recent behavior with more history. | 0.69 |
Correlation (5Y) Shows whether the relationship held over a longer period. | 0.80 |
Correlation (10Y) Provides a long-term view across more market conditions. | 0.84 |
Correlation (All Time) Calculated using the full available price history since Dec 14, 2001 | 0.88 |
Over the past year, the correlation between BUFMX and BUFEX has dropped to 0.65 - well below their long-term average of 0.88, suggesting their price drivers have been diverging.
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Return for Risk
BUFMX vs. BUFEX — Risk / Return Rank
BUFMX
BUFEX
BUFMX vs. BUFEX - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for Buffalo Mid Cap Fund (BUFMX) and Buffalo Large Cap Fund (BUFEX). 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.
| BUFMX | BUFEX | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | -1.64 | ||
| Sortino ratioReturn per unit of downside risk | -2.25 | ||
| Omega ratioGain probability vs. loss probability | 0.92 | 1.20 | -0.27 |
| Calmar ratioReturn relative to maximum drawdown | -0.52 | 1.24 | -1.76 |
| Martin ratioReturn relative to average drawdown | -1.03 | 4.09 | -5.12 |
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Drawdowns
BUFMX vs. BUFEX - Drawdown Comparison
The maximum BUFMX drawdown since its inception was -58.44%, which is greater than BUFEX's maximum drawdown of -54.12%. Use the drawdown chart below to compare losses from any high point for BUFMX and BUFEX.
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Drawdown Indicators
| BUFMX | BUFEX | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -58.44% | -54.12% | -4.32% |
Max Drawdown (1Y)Largest decline over 1 year | -17.71% | -13.76% | -3.95% |
Max Drawdown (3Y)Largest decline over 3 years | -20.29% | -21.46% | +1.17% |
Max Drawdown (5Y)Largest decline over 5 years | -35.58% | -32.54% | -3.04% |
Max Drawdown (10Y)Largest decline over 10 years | -35.58% | -32.54% | -3.04% |
Current DrawdownCurrent decline from peak | -11.71% | -1.74% | -9.97% |
Average DrawdownAverage peak-to-trough decline | -9.41% | -9.20% | -0.21% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 8.91% | 4.18% | +4.73% |
Volatility
BUFMX vs. BUFEX - Volatility Comparison
Buffalo Mid Cap Fund (BUFMX) has a higher volatility of 6.15% compared to Buffalo Large Cap Fund (BUFEX) at 5.21%. This indicates that BUFMX's price experiences larger fluctuations and is considered to be riskier than BUFEX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| BUFMX | BUFEX | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 6.15% | 5.21% | +0.94% |
Volatility (6M)Calculated over the trailing 6-month period | 14.11% | 12.59% | +1.52% |
Volatility (1Y)Calculated over the trailing 1-year period | 17.02% | 15.59% | +1.43% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 20.43% | 19.98% | +0.45% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 19.80% | 19.56% | +0.24% |
BUFMX vs. BUFEX - Expense Ratio Comparison
BUFMX has a 1.02% expense ratio, which is higher than BUFEX's 0.93% expense ratio.
Dividends
BUFMX vs. BUFEX - Dividend Comparison
BUFMX's dividend yield for the trailing twelve months is around 10.71%, more than BUFEX's 6.22% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
BUFEX Buffalo Large Cap Fund | 6.22% | 6.75% | 3.65% | 0.03% | 3.07% | 25.69% | 0.14% | 1.42% | 6.00% | 5.33% | 0.00% | 6.83% |
BUFMX Buffalo Mid Cap Fund | 10.71% | 10.31% | 6.93% | 5.21% | 5.46% | 11.45% | 6.91% | 8.20% | 4.47% | 25.22% | 8.49% | 13.06% |
Frequently Asked Questions
BUFMX and BUFEX have a correlation of 0.65, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
BUFMX has higher volatility (6.15%) compared to BUFEX (5.21%). In terms of maximum drawdown, BUFMX dropped -58.44% vs BUFEX's -54.12%.
BUFEX currently has the higher Sharpe Ratio (1.10 vs -0.54), 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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