OANIX vs. OAKLX

Last updated Jun 4, 2026

OANIX (Oakmark International Fund Institutional Class) and OAKLX (Oakmark Select Fund) are both mutual funds - OANIX is a Foreign Large Cap Equities fund actively managed by Oakmark, while OAKLX is a Large Cap Value Equities fund managed by Oakmark. Over the past 5 years, OANIX returned 3.64%/yr vs 8.63%/yr for OAKLX. A 0.67 correlation means they provide meaningful diversification when combined. OANIX charges 0.82%/yr vs 0.98%/yr for OAKLX.

Performance

OANIX vs. OAKLX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Oakmark International Fund Institutional Class (OANIX) and Oakmark Select Fund (OAKLX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, OANIX achieves a 1.79% return, which is significantly higher than OAKLX's -0.14% return.

OANIX

• 1D: 0.73%
• 1M: 3.97%
• YTD: 1.79%
• 6M: 4.80%
• 1Y: 14.92%
• 3Y*: 10.39%
• 5Y*: 3.64%
• 10Y*: —

OAKLX

• 1D: -1.16%
• 1M: 2.78%
• YTD: -0.14%
• 6M: 3.55%
• 1Y: 14.65%
• 3Y*: 15.87%
• 5Y*: 8.63%
• 10Y*: 10.89%

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

OANIX vs. OAKLX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
OANIX Oakmark International Fund Institutional Class	1.79%	32.74%	-4.38%	19.18%	-15.52%	9.28%	5.15%	24.45%	-23.31%	27.23%
OAKLX Oakmark Select Fund	-0.14%	14.26%	14.15%	43.02%	-22.51%	34.62%	10.76%	27.70%	-24.90%	14.60%

Correlation

The correlation between OANIX and OAKLX is 0.46, which is low. Their price movements are largely independent, making them effective diversification partners.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.46
Correlation (3Y) Calculated over the trailing 3-year period	0.52
Correlation (5Y) Calculated over the trailing 5-year period	0.64
Correlation (All Time) Calculated using the full available price history since Jan 4, 2017	0.67

Over the past year, the correlation between OANIX and OAKLX has dropped to 0.46 - well below their long-term average of 0.67, suggesting their price drivers have been diverging.

Return for Risk

OANIX vs. OAKLX — Risk / Return Rank

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

OANIX

OANIX Risk / Return Rank: 12
OANIX Sharpe Ratio Rank: 13
OANIX Sortino Ratio Rank: 13
OANIX Omega Ratio Rank: 13
OANIX Calmar Ratio Rank: 11
OANIX Martin Ratio Rank: 11

OAKLX

OAKLX Risk / Return Rank: 14
OAKLX Sharpe Ratio Rank: 15
OAKLX Sortino Ratio Rank: 15
OAKLX Omega Ratio Rank: 15
OAKLX Calmar Ratio Rank: 14
OAKLX Martin Ratio Rank: 11

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.

OANIX vs. OAKLX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Oakmark International Fund Institutional Class (OANIX) and Oakmark Select Fund (OAKLX). 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.

	OANIX	OAKLX	Difference
Sharpe ratio Return per unit of total volatility	0.99	1.07	-0.08
Sortino ratio Return per unit of downside risk	1.45	1.59	-0.14
Omega ratio Gain probability vs. loss probability	1.18	1.20	-0.01
Calmar ratio Return relative to maximum drawdown	1.02	1.26	-0.24
Martin ratio Return relative to average drawdown	3.22	3.34	-0.12
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

OANIX vs. OAKLX - Sharpe Ratio Comparison

The current OANIX Sharpe Ratio is 0.99, which is comparable to the OAKLX Sharpe Ratio of 1.07. The chart below compares the historical Sharpe Ratios of OANIX and OAKLX, 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

	OANIX	OAKLX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	0.99	1.07	-0.08
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.19	0.44	-0.25
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	—	0.51	—
Sharpe Ratio (All Time) Calculated using the full available price history	0.31	0.58	-0.28

Drawdowns

OANIX vs. OAKLX - Drawdown Comparison

The maximum OANIX drawdown since its inception was -52.85%, smaller than the maximum OAKLX drawdown of -61.15%. Use the drawdown chart below to compare losses from any high point for OANIX and OAKLX.

Drawdown Indicators

	OANIX	OAKLX	Difference
Max Drawdown Largest peak-to-trough decline	-52.85%	-61.15%	+8.30%
Max Drawdown (1Y) Largest decline over 1 year	-14.34%	-12.49%	-1.85%
Max Drawdown (3Y) Largest decline over 3 years	-18.67%	-18.76%	+0.09%
Max Drawdown (5Y) Largest decline over 5 years	-37.77%	-27.87%	-9.90%
Max Drawdown (10Y) Largest decline over 10 years	—	-48.42%	—
Current Drawdown Current decline from peak	-3.93%	-2.67%	-1.26%
Average Drawdown Average peak-to-trough decline	-12.58%	-8.98%	-3.60%
Ulcer Index Depth and duration of drawdowns from previous peaks	4.52%	4.71%	-0.19%

Volatility

OANIX vs. OAKLX - Volatility Comparison

Oakmark International Fund Institutional Class (OANIX) has a higher volatility of 4.50% compared to Oakmark Select Fund (OAKLX) at 4.20%. This indicates that OANIX's price experiences larger fluctuations and is considered to be riskier than OAKLX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	OANIX	OAKLX	Difference
Volatility (1M) Calculated over the trailing 1-month period	4.50%	4.20%	+0.30%
Volatility (6M) Calculated over the trailing 6-month period	11.20%	11.05%	+0.15%
Volatility (1Y) Calculated over the trailing 1-year period	14.73%	14.74%	-0.01%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	19.14%	19.59%	-0.45%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	21.34%	21.57%	-0.23%

OANIX vs. OAKLX - Expense Ratio Comparison

OANIX has a 0.82% expense ratio, which is lower than OAKLX's 0.98% expense ratio.

Dividends

OANIX vs. OAKLX - Dividend Comparison

OANIX's dividend yield for the trailing twelve months is around 2.08%, more than OAKLX's 0.39% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
OAKLX Oakmark Select Fund	0.39%	0.39%	0.31%	0.51%	0.62%	0.70%	0.00%	0.67%	5.04%	4.20%	4.88%	0.30%
OANIX Oakmark International Fund Institutional Class	2.08%	2.12%	2.78%	2.11%	3.31%	1.51%	0.54%	2.01%	7.49%	1.52%	0.00%	0.00%

Frequently Asked Questions

Can I hold both OANIX and OAKLX in my portfolio?

OANIX and OAKLX have a correlation of 0.46, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, OANIX or OAKLX?

OANIX has higher volatility (4.50%) compared to OAKLX (4.20%). In terms of maximum drawdown, OANIX dropped -52.85% vs OAKLX's -61.15%.

Which has better risk-adjusted returns?

OAKLX currently has the higher Sharpe Ratio (1.07 vs 0.99), 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.