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MIGFX vs. AMCPX
Performance
Risk-Adjusted Performance
Dividends
Drawdowns
Volatility

Correlation

The correlation between MIGFX and AMCPX is 0.90, 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

MIGFX vs. AMCPX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in MFS Massachusetts Investors Growth Stock Fund (MIGFX) and American Funds AMCAP Fund Class A (AMCPX). The values are adjusted to include any dividend payments, if applicable.

-5.00%0.00%5.00%10.00%AugustSeptemberOctoberNovemberDecember2025
-0.01%
6.46%
MIGFX
AMCPX

Key characteristics

Sharpe Ratio

MIGFX:

0.60

AMCPX:

0.90

Sortino Ratio

MIGFX:

0.82

AMCPX:

1.23

Omega Ratio

MIGFX:

1.13

AMCPX:

1.17

Calmar Ratio

MIGFX:

0.72

AMCPX:

0.76

Martin Ratio

MIGFX:

2.41

AMCPX:

4.18

Ulcer Index

MIGFX:

3.65%

AMCPX:

3.42%

Daily Std Dev

MIGFX:

14.68%

AMCPX:

15.86%

Max Drawdown

MIGFX:

-60.97%

AMCPX:

-52.11%

Current Drawdown

MIGFX:

-7.97%

AMCPX:

-6.39%

Returns By Period

In the year-to-date period, MIGFX achieves a 3.39% return, which is significantly lower than AMCPX's 4.07% return. Over the past 10 years, MIGFX has outperformed AMCPX with an annualized return of 6.79%, while AMCPX has yielded a comparatively lower 5.60% annualized return.


MIGFX

YTD

3.39%

1M

2.11%

6M

-0.01%

1Y

7.81%

5Y*

5.59%

10Y*

6.79%

AMCPX

YTD

4.07%

1M

2.40%

6M

6.46%

1Y

13.06%

5Y*

5.76%

10Y*

5.60%

*Annualized

Compare stocks, funds, or ETFs

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


MIGFX vs. AMCPX - Expense Ratio Comparison

MIGFX has a 0.70% expense ratio, which is higher than AMCPX's 0.65% expense ratio.


MIGFX
MFS Massachusetts Investors Growth Stock Fund
Expense ratio chart for MIGFX: current value at 0.70% compared with the broader market ranging from 0.00% to 2.12%.0.50%1.00%1.50%2.00%0.70%
Expense ratio chart for AMCPX: current value at 0.65% compared with the broader market ranging from 0.00% to 2.12%.0.50%1.00%1.50%2.00%0.65%

Risk-Adjusted Performance

MIGFX vs. AMCPX — Risk-Adjusted Performance Rank

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

MIGFX
The Risk-Adjusted Performance Rank of MIGFX is 3131
Overall Rank
The Sharpe Ratio Rank of MIGFX is 2424
Sharpe Ratio Rank
The Sortino Ratio Rank of MIGFX is 2222
Sortino Ratio Rank
The Omega Ratio Rank of MIGFX is 2727
Omega Ratio Rank
The Calmar Ratio Rank of MIGFX is 5151
Calmar Ratio Rank
The Martin Ratio Rank of MIGFX is 3232
Martin Ratio Rank

AMCPX
The Risk-Adjusted Performance Rank of AMCPX is 4646
Overall Rank
The Sharpe Ratio Rank of AMCPX is 4242
Sharpe Ratio Rank
The Sortino Ratio Rank of AMCPX is 4040
Sortino Ratio Rank
The Omega Ratio Rank of AMCPX is 4343
Omega Ratio Rank
The Calmar Ratio Rank of AMCPX is 5252
Calmar Ratio Rank
The Martin Ratio Rank of AMCPX is 5353
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.

MIGFX vs. AMCPX - Risk-Adjusted Performance Comparison

This table presents a comparison of risk-adjusted performance metrics for MFS Massachusetts Investors Growth Stock Fund (MIGFX) and American Funds AMCAP Fund Class A (AMCPX). 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 MIGFX, currently valued at 0.60, compared to the broader market-1.000.001.002.003.004.000.600.90
The chart of Sortino ratio for MIGFX, currently valued at 0.82, compared to the broader market0.005.0010.000.821.23
The chart of Omega ratio for MIGFX, currently valued at 1.13, compared to the broader market1.002.003.004.001.131.17
The chart of Calmar ratio for MIGFX, currently valued at 0.72, compared to the broader market0.005.0010.0015.0020.000.720.76
The chart of Martin ratio for MIGFX, currently valued at 2.41, compared to the broader market0.0020.0040.0060.0080.002.414.18
MIGFX
AMCPX

The current MIGFX Sharpe Ratio is 0.60, which is lower than the AMCPX Sharpe Ratio of 0.90. The chart below compares the historical Sharpe Ratios of MIGFX and AMCPX, 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 Ratio0.501.001.502.002.50AugustSeptemberOctoberNovemberDecember2025
0.60
0.90
MIGFX
AMCPX

Dividends

MIGFX vs. AMCPX - Dividend Comparison

MIGFX's dividend yield for the trailing twelve months is around 0.23%, less than AMCPX's 0.37% yield.


TTM20242023202220212020201920182017201620152014
MIGFX
MFS Massachusetts Investors Growth Stock Fund
0.23%0.24%0.41%0.44%0.18%0.15%0.27%1.08%0.89%0.80%0.92%4.42%
AMCPX
American Funds AMCAP Fund Class A
0.37%0.39%0.57%0.00%0.00%0.19%0.53%0.64%0.41%0.44%3.70%3.29%

Drawdowns

MIGFX vs. AMCPX - Drawdown Comparison

The maximum MIGFX drawdown since its inception was -60.97%, which is greater than AMCPX's maximum drawdown of -52.11%. Use the drawdown chart below to compare losses from any high point for MIGFX and AMCPX. For additional features, visit the drawdowns tool.


-15.00%-10.00%-5.00%0.00%AugustSeptemberOctoberNovemberDecember2025
-7.97%
-6.39%
MIGFX
AMCPX

Volatility

MIGFX vs. AMCPX - Volatility Comparison

The current volatility for MFS Massachusetts Investors Growth Stock Fund (MIGFX) is 3.91%, while American Funds AMCAP Fund Class A (AMCPX) has a volatility of 4.36%. This indicates that MIGFX experiences smaller price fluctuations and is considered to be less risky than AMCPX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.


2.00%4.00%6.00%8.00%AugustSeptemberOctoberNovemberDecember2025
3.91%
4.36%
MIGFX
AMCPX
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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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