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MRFOX vs. BIOPX
Performance
Risk-Adjusted Performance
Dividends
Drawdowns
Volatility

Correlation

The correlation between MRFOX and BIOPX is 0.81, 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.


-0.50.00.51.0
Correlation: 0.8

Performance

MRFOX vs. BIOPX - Performance Comparison

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

120.00%140.00%160.00%180.00%200.00%220.00%240.00%NovemberDecember2025FebruaryMarchApril
226.59%
147.02%
MRFOX
BIOPX

Key characteristics

Sharpe Ratio

MRFOX:

0.47

BIOPX:

0.42

Sortino Ratio

MRFOX:

0.73

BIOPX:

0.77

Omega Ratio

MRFOX:

1.10

BIOPX:

1.11

Calmar Ratio

MRFOX:

0.52

BIOPX:

0.43

Martin Ratio

MRFOX:

1.56

BIOPX:

1.39

Ulcer Index

MRFOX:

3.58%

BIOPX:

8.96%

Daily Std Dev

MRFOX:

11.92%

BIOPX:

29.30%

Max Drawdown

MRFOX:

-29.10%

BIOPX:

-67.79%

Current Drawdown

MRFOX:

-5.92%

BIOPX:

-19.26%

Returns By Period

In the year-to-date period, MRFOX achieves a 1.23% return, which is significantly higher than BIOPX's -11.16% return.


MRFOX

YTD

1.23%

1M

-0.90%

6M

-1.15%

1Y

5.15%

5Y*

14.19%

10Y*

N/A

BIOPX

YTD

-11.16%

1M

-5.59%

6M

-7.63%

1Y

9.78%

5Y*

11.94%

10Y*

8.08%

*Annualized

Compare stocks, funds, or ETFs

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MRFOX vs. BIOPX - Expense Ratio Comparison

MRFOX has a 1.05% expense ratio, which is lower than BIOPX's 1.31% expense ratio.


Expense ratio chart for BIOPX: current value is 1.31%, compared with the broader market range of 0.00% to 2.12%.0.50%1.00%1.50%2.00%
BIOPX: 1.31%
Expense ratio chart for MRFOX: current value is 1.05%, compared with the broader market range of 0.00% to 2.12%.0.50%1.00%1.50%2.00%
MRFOX: 1.05%

Risk-Adjusted Performance

MRFOX vs. BIOPX — 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 5656
Overall Rank
The Sharpe Ratio Rank of MRFOX is 5454
Sharpe Ratio Rank
The Sortino Ratio Rank of MRFOX is 5353
Sortino Ratio Rank
The Omega Ratio Rank of MRFOX is 5454
Omega Ratio Rank
The Calmar Ratio Rank of MRFOX is 6868
Calmar Ratio Rank
The Martin Ratio Rank of MRFOX is 5252
Martin Ratio Rank

BIOPX
The Risk-Adjusted Performance Rank of BIOPX is 5454
Overall Rank
The Sharpe Ratio Rank of BIOPX is 5151
Sharpe Ratio Rank
The Sortino Ratio Rank of BIOPX is 5555
Sortino Ratio Rank
The Omega Ratio Rank of BIOPX is 5555
Omega Ratio Rank
The Calmar Ratio Rank of BIOPX is 6060
Calmar Ratio Rank
The Martin Ratio Rank of BIOPX is 4949
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. BIOPX - Risk-Adjusted Performance Comparison

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


The chart of Sharpe ratio for MRFOX, currently valued at 0.47, compared to the broader market-1.000.001.002.003.00
MRFOX: 0.47
BIOPX: 0.42
The chart of Sortino ratio for MRFOX, currently valued at 0.73, compared to the broader market-2.000.002.004.006.008.00
MRFOX: 0.73
BIOPX: 0.77
The chart of Omega ratio for MRFOX, currently valued at 1.10, compared to the broader market0.501.001.502.002.503.00
MRFOX: 1.10
BIOPX: 1.11
The chart of Calmar ratio for MRFOX, currently valued at 0.52, compared to the broader market0.002.004.006.008.0010.00
MRFOX: 0.52
BIOPX: 0.43
The chart of Martin ratio for MRFOX, currently valued at 1.56, compared to the broader market0.0010.0020.0030.0040.0050.00
MRFOX: 1.56
BIOPX: 1.39

The current MRFOX Sharpe Ratio is 0.47, which is comparable to the BIOPX Sharpe Ratio of 0.42. The chart below compares the historical Sharpe Ratios of MRFOX and BIOPX, 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 Ratio0.001.002.003.00NovemberDecember2025FebruaryMarchApril
0.47
0.42
MRFOX
BIOPX

Dividends

MRFOX vs. BIOPX - Dividend Comparison

MRFOX's dividend yield for the trailing twelve months is around 1.00%, while BIOPX 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%
BIOPX
Baron Opportunity Fund
0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%

Drawdowns

MRFOX vs. BIOPX - Drawdown Comparison

The maximum MRFOX drawdown since its inception was -29.10%, smaller than the maximum BIOPX drawdown of -67.79%. Use the drawdown chart below to compare losses from any high point for MRFOX and BIOPX. For additional features, visit the drawdowns tool.


-30.00%-25.00%-20.00%-15.00%-10.00%-5.00%0.00%NovemberDecember2025FebruaryMarchApril
-5.92%
-19.26%
MRFOX
BIOPX

Volatility

MRFOX vs. BIOPX - Volatility Comparison

The current volatility for Marshfield Concentrated Opportunity Fund (MRFOX) is 7.29%, while Baron Opportunity Fund (BIOPX) has a volatility of 18.17%. This indicates that MRFOX experiences smaller price fluctuations and is considered to be less risky than BIOPX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.


5.00%10.00%15.00%20.00%NovemberDecember2025FebruaryMarchApril
7.29%
18.17%
MRFOX
BIOPX