RMFGX vs. WFSPX
Compare and contrast key facts about American Mutual Fund Class R-6 (RMFGX) and iShares S&P 500 Index Fund (WFSPX).
RMFGX is an actively managed fund by American Funds. It was launched on Feb 21, 1950. WFSPX is a passively managed fund by BlackRock that tracks the performance of the S&P 500 Index. It was launched on Jul 30, 1993.
Performance
RMFGX vs. WFSPX - Performance Comparison
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RMFGX vs. WFSPX - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
RMFGX American Mutual Fund Class R-6 | -3.06% | 16.43% | 15.28% | 9.78% | -4.19% | 25.28% | 5.15% | 21.92% | -2.00% | 17.86% |
WFSPX iShares S&P 500 Index Fund | -7.06% | 17.83% | 24.94% | 26.25% | -18.14% | 28.63% | 18.43% | 31.45% | -4.83% | 21.27% |
Returns By Period
In the year-to-date period, RMFGX achieves a -3.06% return, which is significantly higher than WFSPX's -7.06% return. Over the past 10 years, RMFGX has underperformed WFSPX with an annualized return of 10.75%, while WFSPX has yielded a comparatively higher 13.63% annualized return.
RMFGX
- 1D
- -0.10%
- 1M
- -7.89%
- YTD
- -3.06%
- 6M
- -1.41%
- 1Y
- 10.11%
- 3Y*
- 12.31%
- 5Y*
- 9.70%
- 10Y*
- 10.75%
WFSPX
- 1D
- -0.39%
- 1M
- -7.68%
- YTD
- -7.06%
- 6M
- -4.63%
- 1Y
- 14.40%
- 3Y*
- 17.13%
- 5Y*
- 11.37%
- 10Y*
- 13.63%
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RMFGX vs. WFSPX - Expense Ratio Comparison
RMFGX has a 0.27% expense ratio, which is higher than WFSPX's 0.03% expense ratio. However, both funds are considered low-cost compared to the broader market, where average expense ratios usually range from 0.3% to 0.9%.
Return for Risk
RMFGX vs. WFSPX — Risk / Return Rank
RMFGX
WFSPX
RMFGX vs. WFSPX - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for American Mutual Fund Class R-6 (RMFGX) and iShares S&P 500 Index Fund (WFSPX). 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.
| RMFGX | WFSPX | Difference | |
|---|---|---|---|
Sharpe ratioReturn per unit of total volatility | 0.80 | 0.84 | -0.04 |
Sortino ratioReturn per unit of downside risk | 1.20 | 1.30 | -0.10 |
Omega ratioGain probability vs. loss probability | 1.18 | 1.20 | -0.02 |
Calmar ratioReturn relative to maximum drawdown | 0.96 | 1.06 | -0.10 |
Martin ratioReturn relative to average drawdown | 4.19 | 5.13 | -0.94 |
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month. | |||
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Sharpe Ratios by Period
| RMFGX | WFSPX | Difference | |
|---|---|---|---|
Sharpe Ratio (1Y)Calculated over the trailing 1-year period | 0.80 | 0.84 | -0.04 |
Sharpe Ratio (5Y)Calculated over the trailing 5-year period | 0.78 | 0.68 | +0.10 |
Sharpe Ratio (10Y)Calculated over the trailing 10-year period | 0.76 | 0.76 | 0.00 |
Sharpe Ratio (All Time)Calculated using the full available price history | 0.79 | 0.13 | +0.66 |
Correlation
The correlation between RMFGX and WFSPX is 0.93, 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.
Dividends
RMFGX vs. WFSPX - Dividend Comparison
RMFGX's dividend yield for the trailing twelve months is around 8.14%, more than WFSPX's 1.58% yield.
| TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
RMFGX American Mutual Fund Class R-6 | 8.14% | 7.85% | 6.59% | 4.06% | 5.20% | 4.88% | 2.30% | 4.89% | 6.75% | 6.23% | 4.54% | 6.84% |
WFSPX iShares S&P 500 Index Fund | 1.58% | 1.72% | 1.41% | 1.50% | 2.02% | 1.82% | 1.66% | 1.99% | 2.00% | 1.62% | 2.37% | 2.49% |
Drawdowns
RMFGX vs. WFSPX - Drawdown Comparison
The maximum RMFGX drawdown since its inception was -29.79%, smaller than the maximum WFSPX drawdown of -58.21%. Use the drawdown chart below to compare losses from any high point for RMFGX and WFSPX.
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Drawdown Indicators
| RMFGX | WFSPX | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -29.79% | -58.21% | +28.42% |
Max Drawdown (1Y)Largest decline over 1 year | -10.22% | -12.11% | +1.89% |
Max Drawdown (5Y)Largest decline over 5 years | -15.17% | -24.51% | +9.34% |
Max Drawdown (10Y)Largest decline over 10 years | -29.79% | -33.74% | +3.95% |
Current DrawdownCurrent decline from peak | -7.89% | -8.90% | +1.01% |
Average DrawdownAverage peak-to-trough decline | -2.73% | -12.84% | +10.11% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 2.34% | 2.49% | -0.15% |
Volatility
RMFGX vs. WFSPX - Volatility Comparison
The current volatility for American Mutual Fund Class R-6 (RMFGX) is 3.36%, while iShares S&P 500 Index Fund (WFSPX) has a volatility of 4.24%. This indicates that RMFGX experiences smaller price fluctuations and is considered to be less risky than WFSPX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| RMFGX | WFSPX | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 3.36% | 4.24% | -0.88% |
Volatility (6M)Calculated over the trailing 6-month period | 7.33% | 9.08% | -1.75% |
Volatility (1Y)Calculated over the trailing 1-year period | 13.82% | 18.06% | -4.24% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 12.48% | 16.84% | -4.36% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 14.10% | 17.98% | -3.88% |