OAKWX vs. BRK-B
OAKWX (Oakmark Global Select Fund) is Global Equities fund managed by Oakmark, while BRK-B (Berkshire Hathaway Inc.) is a stock. Over the past 10 years, OAKWX returned 9.12%/yr vs 13.42%/yr for BRK-B. A 0.60 correlation means they provide meaningful diversification when combined.
Performance
OAKWX vs. BRK-B - Performance Comparison
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Returns By Period
In the year-to-date period, OAKWX achieves a -6.72% return, which is significantly lower than BRK-B's -2.95% return. Over the past 10 years, OAKWX has underperformed BRK-B with an annualized return of 9.12%, while BRK-B has yielded a comparatively higher 13.42% annualized return.
OAKWX
- 1D
- 0.78%
- 1M
- -2.03%
- YTD
- -6.72%
- 6M
- -6.72%
- 1Y
- 0.26%
- 3Y*
- 8.63%
- 5Y*
- 3.37%
- 10Y*
- 9.12%
BRK-B
- 1D
- -1.41%
- 1M
- 0.87%
- YTD
- -2.95%
- 6M
- -2.70%
- 1Y
- 0.33%
- 3Y*
- 13.44%
- 5Y*
- 11.87%
- 10Y*
- 13.42%
OAKWX vs. BRK-B - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
OAKWX Oakmark Global Select Fund | -6.72% | 20.73% | 4.68% | 22.72% | -22.48% | 25.99% | 13.04% | 29.82% | -21.20% | 21.15% |
BRK-B Berkshire Hathaway Inc. | -2.95% | 10.89% | 27.09% | 15.46% | 3.31% | 28.95% | 2.37% | 10.93% | 3.01% | 21.62% |
Correlation
The correlation between OAKWX and BRK-B is 0.28, which is low. Their price movements are largely independent, making them effective diversification partners.
| Correlation | |
|---|---|
Correlation (1Y) Calculated over the trailing 1-year period | 0.28 |
Correlation (3Y) Calculated over the trailing 3-year period | 0.46 |
Correlation (5Y) Calculated over the trailing 5-year period | 0.57 |
Correlation (10Y) Calculated over the trailing 10-year period | 0.63 |
Correlation (All Time) Calculated using the full available price history since Oct 2, 2006 | 0.60 |
Over the past year, the correlation between OAKWX and BRK-B has dropped to 0.28 - well below their long-term average of 0.60, suggesting their price drivers have been diverging.
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Return for Risk
OAKWX vs. BRK-B — Risk / Return Rank
OAKWX
BRK-B
OAKWX vs. BRK-B - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for Oakmark Global Select Fund (OAKWX) and Berkshire Hathaway Inc. (BRK-B). 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.
| OAKWX | BRK-B | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | -0.02 | ||
| Sortino ratioReturn per unit of downside risk | -0.03 | ||
| Omega ratioGain probability vs. loss probability | 1.01 | 1.02 | -0.01 |
| Calmar ratioReturn relative to maximum drawdown | 0.00 | 0.04 | -0.03 |
| Martin ratioReturn relative to average drawdown | 0.00 | 0.07 | -0.07 |
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Drawdowns
OAKWX vs. BRK-B - Drawdown Comparison
The maximum OAKWX drawdown since its inception was -54.43%, roughly equal to the maximum BRK-B drawdown of -53.86%. Use the drawdown chart below to compare losses from any high point for OAKWX and BRK-B.
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Drawdown Indicators
| OAKWX | BRK-B | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -54.43% | -53.86% | -0.57% |
Max Drawdown (1Y)Largest decline over 1 year | -14.26% | -9.42% | -4.84% |
Max Drawdown (3Y)Largest decline over 3 years | -14.26% | -14.95% | +0.69% |
Max Drawdown (5Y)Largest decline over 5 years | -32.79% | -26.58% | -6.21% |
Max Drawdown (10Y)Largest decline over 10 years | -42.07% | -29.57% | -12.50% |
Current DrawdownCurrent decline from peak | -11.04% | -9.63% | -1.41% |
Average DrawdownAverage peak-to-trough decline | -9.44% | -11.07% | +1.63% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 5.87% | 4.51% | +1.36% |
Volatility
OAKWX vs. BRK-B - Volatility Comparison
The current volatility for Oakmark Global Select Fund (OAKWX) is 3.53%, while Berkshire Hathaway Inc. (BRK-B) has a volatility of 3.80%. This indicates that OAKWX experiences smaller price fluctuations and is considered to be less risky than BRK-B based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| OAKWX | BRK-B | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 3.53% | 3.80% | -0.27% |
Volatility (6M)Calculated over the trailing 6-month period | 9.67% | 10.53% | -0.86% |
Volatility (1Y)Calculated over the trailing 1-year period | 12.82% | 14.40% | -1.58% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 16.96% | 17.10% | -0.14% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 19.00% | 19.39% | -0.39% |
Dividends
OAKWX vs. BRK-B - Dividend Comparison
OAKWX's dividend yield for the trailing twelve months is around 1.54%, while BRK-B has not paid dividends to shareholders.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
BRK-B Berkshire Hathaway Inc. | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% |
OAKWX Oakmark Global Select Fund | 1.54% | 1.43% | 1.17% | 0.83% | 0.33% | 14.91% | 0.00% | 1.17% | 5.28% | 5.48% | 1.00% | 5.60% |
Frequently Asked Questions
OAKWX and BRK-B have a correlation of 0.28, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
BRK-B has higher volatility (3.80%) compared to OAKWX (3.53%). In terms of maximum drawdown, OAKWX dropped -54.43% vs BRK-B's -53.86%.
BRK-B currently has the higher Sharpe Ratio (0.02 vs 0.00), 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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