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INDEX vs. OAKLX
Performance
Risk-Adjusted Performance
Dividends
Drawdowns
Volatility

Correlation

The correlation between INDEX and OAKLX is 0.88, which is considered to be high. That indicates a strong positive relationship between their price movements. Having highly-correlated positions in a portfolio may signal a lack of diversification, potentially leading to increased risk during market downturns.


-0.50.00.51.00.9

Performance

INDEX vs. OAKLX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Index Funds S&P 500 Equal Weight (INDEX) and Oakmark Select Fund (OAKLX). The values are adjusted to include any dividend payments, if applicable.

-5.00%0.00%5.00%10.00%15.00%AugustSeptemberOctoberNovemberDecember2025
7.64%
12.73%
INDEX
OAKLX

Key characteristics

Sharpe Ratio

INDEX:

2.11

OAKLX:

1.61

Sortino Ratio

INDEX:

2.81

OAKLX:

2.29

Omega Ratio

INDEX:

1.39

OAKLX:

1.29

Calmar Ratio

INDEX:

3.24

OAKLX:

2.86

Martin Ratio

INDEX:

13.00

OAKLX:

6.65

Ulcer Index

INDEX:

2.09%

OAKLX:

3.51%

Daily Std Dev

INDEX:

12.87%

OAKLX:

14.51%

Max Drawdown

INDEX:

-38.82%

OAKLX:

-65.99%

Current Drawdown

INDEX:

-2.03%

OAKLX:

-3.07%

Returns By Period

In the year-to-date period, INDEX achieves a 1.97% return, which is significantly lower than OAKLX's 2.35% return.


INDEX

YTD

1.97%

1M

2.25%

6M

8.81%

1Y

24.51%

5Y*

11.30%

10Y*

N/A

OAKLX

YTD

2.35%

1M

3.44%

6M

14.11%

1Y

22.85%

5Y*

13.15%

10Y*

8.12%

*Annualized

Compare stocks, funds, or ETFs

Search for stocks, ETFs, and funds for a quick comparison or use the comparison tool for more options.


INDEX vs. OAKLX - Expense Ratio Comparison

INDEX has a 0.25% expense ratio, which is lower than OAKLX's 0.98% expense ratio.


OAKLX
Oakmark Select Fund
Expense ratio chart for OAKLX: current value at 0.98% compared with the broader market ranging from 0.00% to 2.12%.0.50%1.00%1.50%2.00%0.98%
Expense ratio chart for INDEX: current value at 0.25% compared with the broader market ranging from 0.00% to 2.12%.0.50%1.00%1.50%2.00%0.25%

Risk-Adjusted Performance

INDEX vs. OAKLX — Risk-Adjusted Performance Rank

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

INDEX
The Risk-Adjusted Performance Rank of INDEX is 8989
Overall Rank
The Sharpe Ratio Rank of INDEX is 8888
Sharpe Ratio Rank
The Sortino Ratio Rank of INDEX is 8787
Sortino Ratio Rank
The Omega Ratio Rank of INDEX is 8787
Omega Ratio Rank
The Calmar Ratio Rank of INDEX is 9191
Calmar Ratio Rank
The Martin Ratio Rank of INDEX is 9191
Martin Ratio Rank

OAKLX
The Risk-Adjusted Performance Rank of OAKLX is 7878
Overall Rank
The Sharpe Ratio Rank of OAKLX is 7878
Sharpe Ratio Rank
The Sortino Ratio Rank of OAKLX is 7979
Sortino Ratio Rank
The Omega Ratio Rank of OAKLX is 7777
Omega Ratio Rank
The Calmar Ratio Rank of OAKLX is 8989
Calmar Ratio Rank
The Martin Ratio Rank of OAKLX is 6969
Martin Ratio Rank
The risk-adjusted ranks indicate the investment's position relative to the market. A rank closer to 100 signifies top-performing investments, while a rank closer to 0 might suggest underperformance, based on the selected ratio. The values are calculated based on the past 12 months of returns.

INDEX vs. OAKLX - Risk-Adjusted Performance Comparison

This table presents a comparison of risk-adjusted performance metrics for Index Funds S&P 500 Equal Weight (INDEX) 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.


Sharpe ratio
The chart of Sharpe ratio for INDEX, currently valued at 2.11, compared to the broader market-1.000.001.002.003.004.002.111.61
The chart of Sortino ratio for INDEX, currently valued at 2.81, compared to the broader market0.005.0010.002.812.29
The chart of Omega ratio for INDEX, currently valued at 1.39, compared to the broader market1.002.003.004.001.391.29
The chart of Calmar ratio for INDEX, currently valued at 3.24, compared to the broader market0.005.0010.0015.0020.003.242.86
The chart of Martin ratio for INDEX, currently valued at 13.00, compared to the broader market0.0020.0040.0060.0080.0013.006.65
INDEX
OAKLX

The current INDEX Sharpe Ratio is 2.11, which is higher than the OAKLX Sharpe Ratio of 1.61. The chart below compares the historical Sharpe Ratios of INDEX and OAKLX, offering insights into how both investments have performed under varying market conditions. These values are calculated using daily returns over the previous 12 months.


Rolling 12-month Sharpe Ratio0.001.002.003.004.00AugustSeptemberOctoberNovemberDecember2025
2.11
1.61
INDEX
OAKLX

Dividends

INDEX vs. OAKLX - Dividend Comparison

INDEX's dividend yield for the trailing twelve months is around 1.31%, more than OAKLX's 0.30% yield.


TTM2024202320222021202020192018201720162015
INDEX
Index Funds S&P 500 Equal Weight
1.31%1.34%1.56%1.21%1.09%1.53%1.61%1.82%1.15%1.15%1.19%
OAKLX
Oakmark Select Fund
0.30%0.31%0.51%0.31%0.04%0.00%0.67%0.18%0.28%0.94%0.30%

Drawdowns

INDEX vs. OAKLX - Drawdown Comparison

The maximum INDEX drawdown since its inception was -38.82%, smaller than the maximum OAKLX drawdown of -65.99%. Use the drawdown chart below to compare losses from any high point for INDEX and OAKLX. For additional features, visit the drawdowns tool.


-8.00%-6.00%-4.00%-2.00%0.00%AugustSeptemberOctoberNovemberDecember2025
-2.03%
-3.07%
INDEX
OAKLX

Volatility

INDEX vs. OAKLX - Volatility Comparison

Index Funds S&P 500 Equal Weight (INDEX) and Oakmark Select Fund (OAKLX) have volatilities of 5.08% and 5.29%, respectively, indicating that both stocks experience similar levels of price fluctuations. This suggests that the risk associated with both stocks, as measured by volatility, is nearly the same. The chart below showcases a comparison of their rolling one-month volatility.


2.00%3.00%4.00%5.00%6.00%AugustSeptemberOctoberNovemberDecember2025
5.08%
5.29%
INDEX
OAKLX
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Disclaimer

The information contained herein does not constitute investment advice and made available for educational purposes only. Prices and returns on equities are listed without consideration of fees, commissions, taxes, penalties, or interest payable due to purchasing, holding, or selling.

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