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MRFOX vs. BRK-B
Performance
Risk-Adjusted Performance
Dividends
Drawdowns
Volatility

Correlation

The correlation between MRFOX and BRK-B is 0.69, 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.


-0.50.00.51.00.7

Performance

MRFOX vs. BRK-B - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Marshfield Concentrated Opportunity Fund (MRFOX) and Berkshire Hathaway Inc. (BRK-B). The values are adjusted to include any dividend payments, if applicable.

-5.00%0.00%5.00%10.00%AugustSeptemberOctoberNovemberDecember2025
2.62%
7.33%
MRFOX
BRK-B

Key characteristics

Sharpe Ratio

MRFOX:

1.44

BRK-B:

2.06

Sortino Ratio

MRFOX:

1.94

BRK-B:

2.87

Omega Ratio

MRFOX:

1.28

BRK-B:

1.37

Calmar Ratio

MRFOX:

1.76

BRK-B:

3.61

Martin Ratio

MRFOX:

5.45

BRK-B:

8.71

Ulcer Index

MRFOX:

2.50%

BRK-B:

3.47%

Daily Std Dev

MRFOX:

9.47%

BRK-B:

14.70%

Max Drawdown

MRFOX:

-29.10%

BRK-B:

-53.86%

Current Drawdown

MRFOX:

-6.07%

BRK-B:

-3.13%

Returns By Period

In the year-to-date period, MRFOX achieves a 1.07% return, which is significantly lower than BRK-B's 3.24% return.


MRFOX

YTD

1.07%

1M

0.82%

6M

3.30%

1Y

13.07%

5Y*

11.22%

10Y*

N/A

BRK-B

YTD

3.24%

1M

3.25%

6M

7.33%

1Y

27.51%

5Y*

15.38%

10Y*

12.16%

*Annualized

Compare stocks, funds, or ETFs

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Risk-Adjusted Performance

MRFOX vs. BRK-B — Risk-Adjusted Performance Rank

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

MRFOX
The Risk-Adjusted Performance Rank of MRFOX is 7171
Overall Rank
The Sharpe Ratio Rank of MRFOX is 7070
Sharpe Ratio Rank
The Sortino Ratio Rank of MRFOX is 6868
Sortino Ratio Rank
The Omega Ratio Rank of MRFOX is 7474
Omega Ratio Rank
The Calmar Ratio Rank of MRFOX is 8080
Calmar Ratio Rank
The Martin Ratio Rank of MRFOX is 6262
Martin Ratio Rank

BRK-B
The Risk-Adjusted Performance Rank of BRK-B is 9292
Overall Rank
The Sharpe Ratio Rank of BRK-B is 9393
Sharpe Ratio Rank
The Sortino Ratio Rank of BRK-B is 9191
Sortino Ratio Rank
The Omega Ratio Rank of BRK-B is 8989
Omega Ratio Rank
The Calmar Ratio Rank of BRK-B is 9696
Calmar Ratio Rank
The Martin Ratio Rank of BRK-B is 9090
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.

MRFOX vs. BRK-B - Risk-Adjusted Performance Comparison

This table presents a comparison of risk-adjusted performance metrics for Marshfield Concentrated Opportunity Fund (MRFOX) 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.


Sharpe ratio
The chart of Sharpe ratio for MRFOX, currently valued at 1.44, compared to the broader market-1.000.001.002.003.004.001.442.06
The chart of Sortino ratio for MRFOX, currently valued at 1.94, compared to the broader market0.005.0010.001.942.87
The chart of Omega ratio for MRFOX, currently valued at 1.28, compared to the broader market1.002.003.004.001.281.37
The chart of Calmar ratio for MRFOX, currently valued at 1.76, compared to the broader market0.005.0010.0015.0020.001.763.61
The chart of Martin ratio for MRFOX, currently valued at 5.45, compared to the broader market0.0020.0040.0060.0080.005.458.71
MRFOX
BRK-B

The current MRFOX Sharpe Ratio is 1.44, which is lower than the BRK-B Sharpe Ratio of 2.06. The chart below compares the historical Sharpe Ratios of MRFOX and BRK-B, 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 Ratio1.502.002.503.003.50AugustSeptemberOctoberNovemberDecember2025
1.44
2.06
MRFOX
BRK-B

Dividends

MRFOX vs. BRK-B - Dividend Comparison

MRFOX's dividend yield for the trailing twelve months is around 1.00%, while BRK-B has not paid dividends to shareholders.


TTM202420232022202120202019201820172016
MRFOX
Marshfield Concentrated Opportunity Fund
1.00%1.01%0.46%0.14%0.00%0.00%0.09%0.02%0.06%0.17%
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%

Drawdowns

MRFOX vs. BRK-B - Drawdown Comparison

The maximum MRFOX drawdown since its inception was -29.10%, smaller than the maximum BRK-B drawdown of -53.86%. Use the drawdown chart below to compare losses from any high point for MRFOX and BRK-B. For additional features, visit the drawdowns tool.


-8.00%-6.00%-4.00%-2.00%0.00%AugustSeptemberOctoberNovemberDecember2025
-6.07%
-3.13%
MRFOX
BRK-B

Volatility

MRFOX vs. BRK-B - Volatility Comparison

The current volatility for Marshfield Concentrated Opportunity Fund (MRFOX) is 3.05%, while Berkshire Hathaway Inc. (BRK-B) has a volatility of 4.55%. This indicates that MRFOX 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.


2.00%3.00%4.00%5.00%6.00%7.00%AugustSeptemberOctoberNovemberDecember2025
3.05%
4.55%
MRFOX
BRK-B
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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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