FMIJX vs. BUFIX

Last updated Jun 4, 2026

FMIJX (FMI International Fund) and BUFIX (Buffalo International Fund) are both Foreign Large Cap Equities funds. Over the past 10 years, FMIJX returned 5.39%/yr vs 10.25%/yr for BUFIX. Their correlation of 0.81 suggests significant overlap in exposure. FMIJX charges 0.94%/yr vs 1.03%/yr for BUFIX.

Performance

FMIJX vs. BUFIX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in FMI International Fund (FMIJX) and Buffalo International Fund (BUFIX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, FMIJX achieves a 0.23% return, which is significantly lower than BUFIX's 17.99% return. Over the past 10 years, FMIJX has underperformed BUFIX with an annualized return of 5.39%, while BUFIX has yielded a comparatively higher 10.25% annualized return.

FMIJX

• 1D: -0.17%
• 1M: 0.98%
• YTD: 0.23%
• 6M: 0.28%
• 1Y: 4.33%
• 3Y*: 7.47%
• 5Y*: 3.20%
• 10Y*: 5.39%

BUFIX

• 1D: 0.14%
• 1M: 9.77%
• YTD: 17.99%
• 6M: 20.64%
• 1Y: 21.31%
• 3Y*: 11.99%
• 5Y*: 6.13%
• 10Y*: 10.25%

*Multi-year figures are annualized to reflect compound growth (CAGR)

FMIJX vs. BUFIX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
FMIJX FMI International Fund	0.23%	8.57%	6.99%	21.81%	-18.67%	13.82%	0.06%	17.11%	-9.54%	13.90%
BUFIX Buffalo International Fund	17.99%	17.09%	-1.90%	18.33%	-21.80%	18.20%	19.10%	28.01%	-8.85%	29.33%

Correlation

The correlation between FMIJX and BUFIX is 0.73, which is moderate. They share some common price drivers but move independently often enough to provide real diversification benefit when combined.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.73
Correlation (3Y) Calculated over the trailing 3-year period	0.78
Correlation (5Y) Calculated over the trailing 5-year period	0.81
Correlation (10Y) Calculated over the trailing 10-year period	0.80
Correlation (All Time) Calculated using the full available price history since Jan 3, 2011	0.81

The correlation between FMIJX and BUFIX has been stable across timeframes, ranging from 0.73 to 0.81 - a consistent structural relationship.

Return for Risk

FMIJX vs. BUFIX — Risk / Return Rank

Compare risk-adjusted metric ranks to identify better-performing investments over the past 12 months.

FMIJX

FMIJX Risk / Return Rank: 5
FMIJX Sharpe Ratio Rank: 5
FMIJX Sortino Ratio Rank: 5
FMIJX Omega Ratio Rank: 5
FMIJX Calmar Ratio Rank: 4
FMIJX Martin Ratio Rank: 5

BUFIX

BUFIX Risk / Return Rank: 19
BUFIX Sharpe Ratio Rank: 18
BUFIX Sortino Ratio Rank: 18
BUFIX Omega Ratio Rank: 19
BUFIX Calmar Ratio Rank: 20
BUFIX Martin Ratio Rank: 22

The rank (0–100) shows how this investment's returns compare to the risk taken. Higher = better. Based on the past 12 months of data, combining Sharpe, Sortino, and other metrics used by quantitative funds and institutional investors.

FMIJX vs. BUFIX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for FMI International Fund (FMIJX) and Buffalo International Fund (BUFIX). 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.

	FMIJX	BUFIX	Difference
Sharpe ratio: Return per unit of total volatility	0.36	1.22	-0.86
Sortino ratio: Return per unit of downside risk	0.64	1.75	-1.12
Omega ratio: Gain probability vs. loss probability	1.07	1.23	-0.15
Calmar ratio: Return relative to maximum drawdown	0.38	1.62	-1.24
Martin ratio: Return relative to average drawdown	1.26	5.65	-4.40
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

FMIJX vs. BUFIX - Sharpe Ratio Comparison

The current FMIJX Sharpe Ratio is 0.36, which is lower than the BUFIX Sharpe Ratio of 1.22. The chart below compares the historical Sharpe Ratios of FMIJX and BUFIX, calculated using daily returns over the previous 12 months. A higher Sharpe Ratio indicates better risk-adjusted performance relative to the risk-free rate.

Sharpe Ratios by Period

	FMIJX	BUFIX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	0.36	1.22	-0.86
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.22	0.35	-0.13
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.36	0.59	-0.23
Sharpe Ratio (All Time) Calculated using the full available price history	0.48	0.34	+0.14

Drawdowns

FMIJX vs. BUFIX - Drawdown Comparison

The maximum FMIJX drawdown since its inception was -37.45%, smaller than the maximum BUFIX drawdown of -55.09%. Use the drawdown chart below to compare losses from any high point for FMIJX and BUFIX.

Drawdown Indicators

	FMIJX	BUFIX	Difference
Max Drawdown Largest peak-to-trough decline	-37.45%	-55.09%	+17.64%
Max Drawdown (1Y) Largest decline over 1 year	-13.46%	-12.85%	-0.61%
Max Drawdown (3Y) Largest decline over 3 years	-15.88%	-15.52%	-0.36%
Max Drawdown (5Y) Largest decline over 5 years	-21.77%	-34.93%	+13.16%
Max Drawdown (10Y) Largest decline over 10 years	-37.45%	-34.93%	-2.52%
Current Drawdown Current decline from peak	-6.00%	0.00%	-6.00%
Average Drawdown Average peak-to-trough decline	-4.67%	-9.17%	+4.50%
Ulcer Index Depth and duration of drawdowns from previous peaks	4.03%	3.68%	+0.35%

Volatility

FMIJX vs. BUFIX - Volatility Comparison

The current volatility for FMI International Fund (FMIJX) is 3.96%, while Buffalo International Fund (BUFIX) has a volatility of 7.04%. This indicates that FMIJX experiences smaller price fluctuations and is considered to be less risky than BUFIX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	FMIJX	BUFIX	Difference
Volatility (1M) Calculated over the trailing 1-month period	3.96%	7.04%	-3.08%
Volatility (6M) Calculated over the trailing 6-month period	11.00%	14.72%	-3.72%
Volatility (1Y) Calculated over the trailing 1-year period	14.05%	17.12%	-3.07%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	14.37%	17.56%	-3.19%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	15.18%	17.52%	-2.34%

FMIJX vs. BUFIX - Expense Ratio Comparison

FMIJX has a 0.94% expense ratio, which is lower than BUFIX's 1.03% expense ratio.

Dividends

FMIJX vs. BUFIX - Dividend Comparison

FMIJX's dividend yield for the trailing twelve months is around 13.06%, more than BUFIX's 0.72% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
BUFIX Buffalo International Fund	0.72%	0.85%	0.84%	0.59%	1.85%	1.20%	0.28%	0.57%	2.42%	0.36%	0.00%	0.51%
FMIJX FMI International Fund	13.06%	13.09%	0.00%	0.00%	4.43%	3.46%	0.00%	3.55%	7.43%	0.28%	3.76%	1.84%

Frequently Asked Questions

Can I hold both FMIJX and BUFIX in my portfolio?

FMIJX and BUFIX have a correlation of 0.73, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, FMIJX or BUFIX?

BUFIX has higher volatility (7.04%) compared to FMIJX (3.96%). In terms of maximum drawdown, FMIJX dropped -37.45% vs BUFIX's -55.09%.

Which has better risk-adjusted returns?

BUFIX currently has the higher Sharpe Ratio (1.22 vs 0.36), 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.