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AGTHX vs. MRFOX
Performance
Return for Risk
Dividends
Drawdowns
Volatility

Performance

AGTHX vs. MRFOX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in American Funds The Growth Fund of America Class A (AGTHX) and Marshfield Concentrated Opportunity Fund (MRFOX). The values are adjusted to include any dividend payments, if applicable.

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AGTHX vs. MRFOX - Yearly Performance Comparison


2026 (YTD)202520242023202220212020201920182017
AGTHX
American Funds The Growth Fund of America Class A
-7.11%19.73%28.02%37.22%-30.75%19.32%37.83%28.16%-3.15%26.14%
MRFOX
Marshfield Concentrated Opportunity Fund
-2.77%10.05%17.10%17.68%5.06%17.71%15.19%36.26%1.89%25.92%

Returns By Period

In the year-to-date period, AGTHX achieves a -7.11% return, which is significantly lower than MRFOX's -2.77% return. Over the past 10 years, AGTHX has underperformed MRFOX with an annualized return of 14.44%, while MRFOX has yielded a comparatively higher 15.33% annualized return.


AGTHX

1D
1.04%
1M
-4.03%
YTD
-7.11%
6M
-6.60%
1Y
16.86%
3Y*
20.68%
5Y*
9.18%
10Y*
14.44%

MRFOX

1D
0.21%
1M
-3.11%
YTD
-2.77%
6M
-3.52%
1Y
3.56%
3Y*
12.87%
5Y*
11.04%
10Y*
15.33%
*Multi-year figures are annualized to reflect compound growth (CAGR)

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AGTHX vs. MRFOX - Expense Ratio Comparison

AGTHX has a 0.61% expense ratio, which is lower than MRFOX's 1.05% expense ratio.


Return for Risk

AGTHX vs. MRFOX — Risk / Return Rank

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

AGTHX
AGTHX Risk / Return Rank: 3737
Overall Rank
AGTHX Sharpe Ratio Rank: 3232
Sharpe Ratio Rank
AGTHX Sortino Ratio Rank: 3636
Sortino Ratio Rank
AGTHX Omega Ratio Rank: 3535
Omega Ratio Rank
AGTHX Calmar Ratio Rank: 4040
Calmar Ratio Rank
AGTHX Martin Ratio Rank: 3939
Martin Ratio Rank

MRFOX
MRFOX Risk / Return Rank: 1010
Overall Rank
MRFOX Sharpe Ratio Rank: 99
Sharpe Ratio Rank
MRFOX Sortino Ratio Rank: 99
Sortino Ratio Rank
MRFOX Omega Ratio Rank: 88
Omega Ratio Rank
MRFOX Calmar Ratio Rank: 1313
Calmar Ratio Rank
MRFOX Martin Ratio Rank: 1010
Martin Ratio Rank
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.

AGTHX vs. MRFOX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for American Funds The Growth Fund of America Class A (AGTHX) and Marshfield Concentrated Opportunity Fund (MRFOX). 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.


AGTHXMRFOXDifference

Sharpe ratio

Return per unit of total volatility

0.86

0.33

+0.53

Sortino ratio

Return per unit of downside risk

1.37

0.57

+0.80

Omega ratio

Gain probability vs. loss probability

1.20

1.07

+0.13

Calmar ratio

Return relative to maximum drawdown

1.37

0.58

+0.79

Martin ratio

Return relative to average drawdown

5.11

1.47

+3.64

AGTHX vs. MRFOX - Sharpe Ratio Comparison

The current AGTHX Sharpe Ratio is 0.86, which is higher than the MRFOX Sharpe Ratio of 0.33. The chart below compares the historical Sharpe Ratios of AGTHX and MRFOX, offering insights into how both investments have performed under varying market conditions. These values are calculated using daily returns over the previous 12 months.


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Sharpe Ratios by Period


AGTHXMRFOXDifference

Sharpe Ratio (1Y)

Calculated over the trailing 1-year period

0.86

0.33

+0.53

Sharpe Ratio (5Y)

Calculated over the trailing 5-year period

0.46

0.92

-0.46

Sharpe Ratio (10Y)

Calculated over the trailing 10-year period

0.74

1.08

-0.34

Sharpe Ratio (All Time)

Calculated using the full available price history

0.68

1.06

-0.38

Correlation

The correlation between AGTHX and MRFOX is 0.70, 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.


Dividends

AGTHX vs. MRFOX - Dividend Comparison

AGTHX's dividend yield for the trailing twelve months is around 11.51%, more than MRFOX's 1.67% yield.


TTM20252024202320222021202020192018201720162015
AGTHX
American Funds The Growth Fund of America Class A
11.51%10.69%8.99%7.40%4.05%8.18%4.30%7.15%11.99%7.03%6.61%8.87%
MRFOX
Marshfield Concentrated Opportunity Fund
1.67%1.62%4.59%0.46%0.35%6.78%2.68%1.39%1.94%2.06%0.60%0.00%

Drawdowns

AGTHX vs. MRFOX - Drawdown Comparison

The maximum AGTHX drawdown since its inception was -51.91%, which is greater than MRFOX's maximum drawdown of -29.10%. Use the drawdown chart below to compare losses from any high point for AGTHX and MRFOX.


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Drawdown Indicators


AGTHXMRFOXDifference

Max Drawdown

Largest peak-to-trough decline

-51.91%

-29.10%

-22.81%

Max Drawdown (1Y)

Largest decline over 1 year

-13.76%

-7.03%

-6.73%

Max Drawdown (5Y)

Largest decline over 5 years

-36.38%

-12.98%

-23.40%

Max Drawdown (10Y)

Largest decline over 10 years

-36.38%

-29.10%

-7.28%

Current Drawdown

Current decline from peak

-9.77%

-5.12%

-4.65%

Average Drawdown

Average peak-to-trough decline

-9.23%

-2.37%

-6.86%

Ulcer Index

Depth and duration of drawdowns from previous peaks

3.69%

2.79%

+0.90%

Volatility

AGTHX vs. MRFOX - Volatility Comparison

American Funds The Growth Fund of America Class A (AGTHX) has a higher volatility of 6.78% compared to Marshfield Concentrated Opportunity Fund (MRFOX) at 2.95%. This indicates that AGTHX's price experiences larger fluctuations and is considered to be riskier than MRFOX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.


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Volatility by Period


AGTHXMRFOXDifference

Volatility (1M)

Calculated over the trailing 1-month period

6.78%

2.95%

+3.83%

Volatility (6M)

Calculated over the trailing 6-month period

12.18%

7.08%

+5.10%

Volatility (1Y)

Calculated over the trailing 1-year period

21.03%

11.79%

+9.24%

Volatility (5Y)

Calculated over the trailing 5-year period, annualized

20.22%

12.04%

+8.18%

Volatility (10Y)

Calculated over the trailing 10-year period, annualized

19.64%

14.29%

+5.35%