OAZMX vs. OAKEX

Last updated Apr 2, 2026

Compare and contrast key facts about Oakmark Fund R6 Class (OAZMX) and Oakmark International Small Cap Fund (OAKEX).

OAZMX is an actively managed fund by Oakmark. It was launched on Dec 15, 2020. OAKEX is managed by Oakmark. It was launched on Oct 31, 1995.

Performance

OAZMX vs. OAKEX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Oakmark Fund R6 Class (OAZMX) and Oakmark International Small Cap Fund (OAKEX). The values are adjusted to include any dividend payments, if applicable.

OAZMX vs. OAKEX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020
OAZMX Oakmark Fund R6 Class	-2.39%	14.45%	16.33%	31.29%	-13.16%	34.59%	1.81%
OAKEX Oakmark International Small Cap Fund	-8.12%	29.51%	-3.00%	19.59%	-14.50%	17.90%	1.02%

Returns By Period

In the year-to-date period, OAZMX achieves a -2.39% return, which is significantly higher than OAKEX's -8.12% return.

OAZMX

• 1D: 1.76%
• 1M: -3.54%
• YTD: -2.39%
• 6M: 2.45%
• 1Y: 10.44%
• 3Y*: 16.40%
• 5Y*: 11.18%
• 10Y*: —

OAKEX

• 1D: 2.49%
• 1M: -8.66%
• YTD: -8.12%
• 6M: -6.97%
• 1Y: 9.88%
• 3Y*: 9.01%
• 5Y*: 4.30%
• 10Y*: 7.23%

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

OAZMX vs. OAKEX - Expense Ratio Comparison

OAZMX has a 0.62% expense ratio, which is lower than OAKEX's 1.34% expense ratio.

OAKEX

Oakmark International Small Cap Fund

OAZMX

Oakmark Fund R6 Class

Return for Risk

OAZMX vs. OAKEX — Risk / Return Rank

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

OAZMX

OAZMX Risk / Return Rank: 19
OAZMX Sharpe Ratio Rank: 16
OAZMX Sortino Ratio Rank: 16
OAZMX Omega Ratio Rank: 17
OAZMX Calmar Ratio Rank: 21
OAZMX Martin Ratio Rank: 25

OAKEX

OAKEX Risk / Return Rank: 17
OAKEX Sharpe Ratio Rank: 21
OAKEX Sortino Ratio Rank: 19
OAKEX Omega Ratio Rank: 18
OAKEX Calmar Ratio Rank: 14
OAKEX Martin Ratio Rank: 14

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.

OAZMX vs. OAKEX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Oakmark Fund R6 Class (OAZMX) and Oakmark International Small Cap Fund (OAKEX). 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.

	OAZMX	OAKEX	Difference
Sharpe ratio Return per unit of total volatility	0.56	0.60	-0.05
Sortino ratio Return per unit of downside risk	0.89	0.91	-0.02
Omega ratio Gain probability vs. loss probability	1.13	1.12	+0.01
Calmar ratio Return relative to maximum drawdown	0.84	0.45	+0.39
Martin ratio Return relative to average drawdown	3.37	1.55	+1.82
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

OAZMX vs. OAKEX - Sharpe Ratio Comparison

The current OAZMX Sharpe Ratio is 0.56, which is comparable to the OAKEX Sharpe Ratio of 0.60. The chart below compares the historical Sharpe Ratios of OAZMX and OAKEX, offering insights into how both investments have performed under varying market conditions. These values are calculated using daily returns over the previous 12 months.

Sharpe Ratios by Period

	OAZMX	OAKEX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	0.56	0.60	-0.05
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.61	0.25	+0.37
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	—	0.39	—
Sharpe Ratio (All Time) Calculated using the full available price history	0.79	0.42	+0.37

Correlation

The correlation between OAZMX and OAKEX is 0.66, which is considered to be moderate. This suggests that the two assets have some degree of positive relationship in their price movements. Moderate correlation can be acceptable for portfolio diversification, offering a balance between risk and potential returns.

Dividends

OAZMX vs. OAKEX - Dividend Comparison

OAZMX's dividend yield for the trailing twelve months is around 1.23%, less than OAKEX's 5.71% yield.

	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
OAZMX Oakmark Fund R6 Class	1.23%	1.20%	1.38%	1.26%	1.22%	1.72%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%
OAKEX Oakmark International Small Cap Fund	5.71%	5.24%	6.38%	1.83%	1.89%	0.61%	1.87%	0.21%	8.93%	3.64%	3.09%	5.06%

Drawdowns

OAZMX vs. OAKEX - Drawdown Comparison

The maximum OAZMX drawdown since its inception was -23.54%, smaller than the maximum OAKEX drawdown of -70.12%. Use the drawdown chart below to compare losses from any high point for OAZMX and OAKEX.

Drawdown Indicators

	OAZMX	OAKEX	Difference
Max Drawdown Largest peak-to-trough decline	-23.54%	-70.12%	+46.58%
Max Drawdown (1Y) Largest decline over 1 year	-13.46%	-17.18%	+3.72%
Max Drawdown (5Y) Largest decline over 5 years	-23.54%	-38.40%	+14.86%
Max Drawdown (10Y) Largest decline over 10 years	—	-49.61%	—
Current Drawdown Current decline from peak	-4.90%	-12.85%	+7.95%
Average Drawdown Average peak-to-trough decline	-4.78%	-13.53%	+8.75%
Ulcer Index Depth and duration of drawdowns from previous peaks	3.37%	4.98%	-1.61%

Volatility

OAZMX vs. OAKEX - Volatility Comparison

The current volatility for Oakmark Fund R6 Class (OAZMX) is 4.21%, while Oakmark International Small Cap Fund (OAKEX) has a volatility of 6.45%. This indicates that OAZMX experiences smaller price fluctuations and is considered to be less risky than OAKEX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	OAZMX	OAKEX	Difference
Volatility (1M) Calculated over the trailing 1-month period	4.21%	6.45%	-2.24%
Volatility (6M) Calculated over the trailing 6-month period	10.35%	10.96%	-0.61%
Volatility (1Y) Calculated over the trailing 1-year period	18.78%	16.66%	+2.12%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	18.34%	17.61%	+0.73%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	18.39%	18.60%	-0.21%