RFNGX vs. EFCNX
Compare and contrast key facts about American Funds Fundamental Investors Fund Class R6 (RFNGX) and Emerald Insights Fund (EFCNX).
RFNGX is an actively managed fund by Capital Group. It was launched on May 1, 2009. EFCNX is managed by Emerald. It was launched on Aug 1, 2014.
Performance
RFNGX vs. EFCNX - Performance Comparison
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RFNGX vs. EFCNX - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
RFNGX American Funds Fundamental Investors Fund Class R6 | -3.28% | 24.58% | 22.77% | 26.25% | -16.38% | 22.83% | 13.72% | 27.48% | -7.09% | 23.15% |
EFCNX Emerald Insights Fund | 0.00% | 28.71% | 25.88% | 40.82% | -31.09% | 22.95% | 49.60% | 36.32% | -9.88% | 22.52% |
Returns By Period
Over the past 10 years, RFNGX has underperformed EFCNX with an annualized return of 13.51%, while EFCNX has yielded a comparatively higher 16.72% annualized return.
RFNGX
- 1D
- 2.96%
- 1M
- -7.03%
- YTD
- -3.28%
- 6M
- 0.26%
- 1Y
- 23.62%
- 3Y*
- 20.77%
- 5Y*
- 12.19%
- 10Y*
- 13.51%
EFCNX
- 1D
- 0.00%
- 1M
- 0.00%
- YTD
- 0.00%
- 6M
- 0.00%
- 1Y
- 45.34%
- 3Y*
- 25.53%
- 5Y*
- 11.21%
- 10Y*
- 16.72%
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RFNGX vs. EFCNX - Expense Ratio Comparison
RFNGX has a 0.28% expense ratio, which is lower than EFCNX's 1.40% expense ratio.
Return for Risk
RFNGX vs. EFCNX — Risk / Return Rank
RFNGX
EFCNX
RFNGX vs. EFCNX - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for American Funds Fundamental Investors Fund Class R6 (RFNGX) and Emerald Insights Fund (EFCNX). 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.
| RFNGX | EFCNX | Difference | |
|---|---|---|---|
Sharpe ratioReturn per unit of total volatility | 1.35 | 2.43 | -1.08 |
Sortino ratioReturn per unit of downside risk | 2.02 | 3.41 | -1.39 |
Omega ratioGain probability vs. loss probability | 1.28 | 1.84 | -0.56 |
Calmar ratioReturn relative to maximum drawdown | 2.16 | 0.87 | +1.29 |
Martin ratioReturn relative to average drawdown | 9.52 | 3.10 | +6.42 |
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
| RFNGX | EFCNX | Difference | |
|---|---|---|---|
Sharpe Ratio (1Y)Calculated over the trailing 1-year period | 1.35 | 2.43 | -1.08 |
Sharpe Ratio (5Y)Calculated over the trailing 5-year period | 0.73 | 0.50 | +0.23 |
Sharpe Ratio (10Y)Calculated over the trailing 10-year period | 0.77 | 0.74 | +0.02 |
Sharpe Ratio (All Time)Calculated using the full available price history | 0.74 | 0.63 | +0.10 |
Correlation
The correlation between RFNGX and EFCNX is 0.86, 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
RFNGX vs. EFCNX - Dividend Comparison
RFNGX's dividend yield for the trailing twelve months is around 9.15%, more than EFCNX's 8.50% yield.
| TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
RFNGX American Funds Fundamental Investors Fund Class R6 | 9.15% | 8.82% | 8.91% | 6.10% | 5.33% | 11.29% | 1.77% | 7.21% | 10.67% | 7.56% | 5.01% | 6.01% |
EFCNX Emerald Insights Fund | 8.50% | 8.50% | 1.27% | 0.00% | 5.41% | 15.80% | 9.41% | 0.04% | 27.51% | 0.00% | 0.00% | 0.00% |
Drawdowns
RFNGX vs. EFCNX - Drawdown Comparison
The maximum RFNGX drawdown since its inception was -33.90%, smaller than the maximum EFCNX drawdown of -38.34%. Use the drawdown chart below to compare losses from any high point for RFNGX and EFCNX.
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Drawdown Indicators
| RFNGX | EFCNX | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -33.90% | -38.34% | +4.44% |
Max Drawdown (1Y)Largest decline over 1 year | -11.35% | -14.32% | +2.97% |
Max Drawdown (5Y)Largest decline over 5 years | -24.88% | -38.34% | +13.46% |
Max Drawdown (10Y)Largest decline over 10 years | -33.90% | -38.34% | +4.44% |
Current DrawdownCurrent decline from peak | -7.98% | 0.00% | -7.98% |
Average DrawdownAverage peak-to-trough decline | -4.05% | -8.74% | +4.69% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 2.58% | 7.45% | -4.87% |
Volatility
RFNGX vs. EFCNX - Volatility Comparison
American Funds Fundamental Investors Fund Class R6 (RFNGX) has a higher volatility of 6.03% compared to Emerald Insights Fund (EFCNX) at 0.00%. This indicates that RFNGX's price experiences larger fluctuations and is considered to be riskier than EFCNX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| RFNGX | EFCNX | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 6.03% | 0.00% | +6.03% |
Volatility (6M)Calculated over the trailing 6-month period | 11.04% | 5.20% | +5.84% |
Volatility (1Y)Calculated over the trailing 1-year period | 18.14% | 22.14% | -4.00% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 16.73% | 23.15% | -6.42% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 17.68% | 22.85% | -5.17% |