RMAGX vs. GFFFX
RMAGX (American Funds Mortgage Fund Class R-6) and GFFFX (American Funds The Growth Fund of America Class F-2) are both mutual funds - RMAGX is a Government Bonds fund actively managed by American Funds, while GFFFX is a Large Cap Growth Equities fund actively managed by American Funds. Both are actively managed. Over the past 10 years, RMAGX returned 1.45%/yr vs 15.27%/yr for GFFFX. Their -0.05 correlation means they have often moved in opposite directions in the past. RMAGX charges 0.26%/yr vs 0.40%/yr for GFFFX.
Performance
RMAGX vs. GFFFX - Performance Comparison
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Returns By Period
In the year-to-date period, RMAGX achieves a -0.98% return, which is significantly lower than GFFFX's 4.51% return. Over the past 10 years, RMAGX has underperformed GFFFX with an annualized return of 1.45%, while GFFFX has yielded a comparatively higher 15.27% annualized return.
RMAGX
- 1D
- -0.12%
- 1M
- -1.14%
- 6M
- -1.13%
- YTD
- -0.98%
- 1Y
- 2.08%
- 3Y*
- 3.82%
- 5Y*
- 0.11%
- 10Y*
- 1.45%
- ALL TIME*
- 2.12%
GFFFX
- 1D
- 1.91%
- 1M
- -3.24%
- 6M
- 3.86%
- YTD
- 4.51%
- 1Y
- 13.10%
- 3Y*
- 19.90%
- 5Y*
- 10.33%
- 10Y*
- 15.27%
- ALL TIME*
- 14.98%
Liquidity Comparison
| Position | Avg. Volume Value (2W) | Avg. Volume Value (1M) | Avg. Volume Value (3M) |
|---|---|---|---|
| $0.00 | $0.00 | $0.00 | |
| $0.00 | $0.00 | $0.00 |
RMAGX vs. GFFFX - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
RMAGX American Funds Mortgage Fund Class R-6 | -0.98% | 8.91% | 1.01% | 3.25% | -10.22% | -0.24% | 7.02% | 5.09% | 0.86% | 1.77% |
GFFFX American Funds The Growth Fund of America Class F-2 | 4.51% | 19.96% | 28.28% | 37.51% | -30.61% | 19.55% | 38.16% | 28.43% | -2.96% | 26.38% |
Correlation
The correlation between RMAGX and GFFFX is 0.29, which is low. Their historical price movements had little consistent relationship.
| Correlation | |
|---|---|
Correlation (1Y) Focuses on recent behavior, but can change the most. | 0.29 |
Correlation (3Y) Balances recent behavior with more history. | 0.17 |
Correlation (5Y) Shows whether the relationship held over a longer period. | 0.16 |
Correlation (10Y) Provides a long-term view across more market conditions. | 0.03 |
Correlation (All Time) Calculated using the full available price history since Jan 3, 2011 | -0.05 |
The correlation between RMAGX and GFFFX shifts across timeframes, from -0.05 (all time) to 0.29 (1 year), reflecting how their relationship changes across market environments.
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Return for Risk
RMAGX vs. GFFFX — Risk / Return Rank
RMAGX
GFFFX
RMAGX vs. GFFFX - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for American Funds Mortgage Fund Class R-6 (RMAGX) and American Funds The Growth Fund of America Class F-2 (GFFFX). 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.
| RMAGX | GFFFX | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | +0.23 | ||
| Sortino ratioReturn per unit of downside risk | +0.36 | ||
| Omega ratioGain probability vs. loss probability | 1.17 | 1.13 | +0.04 |
| Calmar ratioReturn relative to maximum drawdown | 1.09 | 0.82 | +0.27 |
| Martin ratioReturn relative to average drawdown | 2.82 | 2.96 | -0.14 |
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Drawdowns
RMAGX vs. GFFFX - Drawdown Comparison
The maximum RMAGX drawdown since its inception was -15.93%, smaller than the maximum GFFFX drawdown of -36.26%. Use the drawdown chart below to compare losses from any high point for RMAGX and GFFFX.
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Drawdown Indicators
| RMAGX | GFFFX | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -15.93% | -36.26% | +20.33% |
Max Drawdown (1Y)Largest decline over 1 year | -3.37% | -13.74% | +10.37% |
Max Drawdown (3Y)Largest decline over 3 years | -6.17% | -21.55% | +15.38% |
Max Drawdown (5Y)Largest decline over 5 years | -15.93% | -36.26% | +20.33% |
Max Drawdown (10Y)Largest decline over 10 years | -15.93% | -36.26% | +20.33% |
Current DrawdownCurrent decline from peak | -2.68% | -5.45% | +2.77% |
Average DrawdownAverage peak-to-trough decline | -2.34% | -5.55% | +3.21% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 1.30% | 3.78% | -2.48% |
Volatility
RMAGX vs. GFFFX - Volatility Comparison
The current volatility for American Funds Mortgage Fund Class R-6 (RMAGX) is 1.02%, while American Funds The Growth Fund of America Class F-2 (GFFFX) has a volatility of 4.82%. This indicates that RMAGX experiences smaller price fluctuations and is considered to be less risky than GFFFX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| RMAGX | GFFFX | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 1.02% | 4.82% | -3.80% |
Volatility (6M)Calculated over the trailing 6-month period | 3.32% | 13.65% | -10.33% |
Volatility (1Y)Calculated over the trailing 1-year period | 4.12% | 16.91% | -12.79% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 6.44% | 20.53% | -14.09% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 4.86% | 19.76% | -14.90% |
RMAGX vs. GFFFX - Expense Ratio Comparison
RMAGX has a 0.26% expense ratio, which is lower than GFFFX's 0.40% expense ratio.
Dividends
RMAGX vs. GFFFX - Dividend Comparison
RMAGX's dividend yield for the trailing twelve months is around 4.21%, less than GFFFX's 10.48% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
GFFFX American Funds The Growth Fund of America Class F-2 | 10.48% | 10.95% | 9.23% | 7.64% | 4.32% | 8.42% | 4.51% | 7.38% | 12.29% | 7.27% | 6.87% | 9.13% |
RMAGX American Funds Mortgage Fund Class R-6 | 4.21% | 4.60% | 4.94% | 3.61% | 1.70% | 0.74% | 4.79% | 3.27% | 2.14% | 2.07% | 2.69% | 2.82% |
Frequently Asked Questions
RMAGX and GFFFX have a correlation of 0.29, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
GFFFX has higher volatility (4.82%) compared to RMAGX (1.02%). In terms of maximum drawdown, RMAGX dropped -15.93% vs GFFFX's -36.26%.
RMAGX currently has the higher Sharpe Ratio (0.90 vs 0.66), 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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