IFAFX vs. GBFFX
Compare and contrast key facts about American Funds Income Fund of America Class F1 (IFAFX) and GMO Benchmark-Free Fund (GBFFX).
IFAFX is an actively managed fund by American Funds. It was launched on Dec 1, 1973. GBFFX is managed by GMO. It was launched on Jun 14, 2011.
Performance
IFAFX vs. GBFFX - Performance Comparison
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IFAFX vs. GBFFX - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
IFAFX American Funds Income Fund of America Class F1 | 2.82% | 17.71% | 10.76% | 6.76% | -6.48% | 17.28% | 4.40% | 18.41% | -5.33% | 12.48% |
GBFFX GMO Benchmark-Free Fund | 5.76% | 24.07% | 0.40% | 15.24% | -3.36% | 4.38% | -3.35% | 13.79% | -7.12% | 17.06% |
Returns By Period
In the year-to-date period, IFAFX achieves a 2.82% return, which is significantly lower than GBFFX's 5.76% return. Over the past 10 years, IFAFX has outperformed GBFFX with an annualized return of 8.28%, while GBFFX has yielded a comparatively lower 6.70% annualized return.
IFAFX
- 1D
- 1.37%
- 1M
- -4.18%
- YTD
- 2.82%
- 6M
- 5.27%
- 1Y
- 15.32%
- 3Y*
- 12.38%
- 5Y*
- 8.01%
- 10Y*
- 8.28%
GBFFX
- 1D
- 1.05%
- 1M
- -2.94%
- YTD
- 5.76%
- 6M
- 12.11%
- 1Y
- 24.44%
- 3Y*
- 13.80%
- 5Y*
- 7.51%
- 10Y*
- 6.70%
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IFAFX vs. GBFFX - Expense Ratio Comparison
IFAFX has a 0.63% expense ratio, which is higher than GBFFX's 0.35% expense ratio.
Return for Risk
IFAFX vs. GBFFX — Risk / Return Rank
IFAFX
GBFFX
IFAFX vs. GBFFX - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for American Funds Income Fund of America Class F1 (IFAFX) and GMO Benchmark-Free Fund (GBFFX). 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.
| IFAFX | GBFFX | Difference | |
|---|---|---|---|
Sharpe ratioReturn per unit of total volatility | 1.65 | 3.08 | -1.43 |
Sortino ratioReturn per unit of downside risk | 2.27 | 4.08 | -1.81 |
Omega ratioGain probability vs. loss probability | 1.34 | 1.63 | -0.28 |
Calmar ratioReturn relative to maximum drawdown | 1.96 | 3.94 | -1.98 |
Martin ratioReturn relative to average drawdown | 9.12 | 15.49 | -6.36 |
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
| IFAFX | GBFFX | Difference | |
|---|---|---|---|
Sharpe Ratio (1Y)Calculated over the trailing 1-year period | 1.65 | 3.08 | -1.43 |
Sharpe Ratio (5Y)Calculated over the trailing 5-year period | 0.85 | 0.94 | -0.09 |
Sharpe Ratio (10Y)Calculated over the trailing 10-year period | 0.78 | 0.74 | +0.04 |
Sharpe Ratio (All Time)Calculated using the full available price history | 0.70 | 0.65 | +0.05 |
Correlation
The correlation between IFAFX and GBFFX is 0.78, 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
IFAFX vs. GBFFX - Dividend Comparison
IFAFX's dividend yield for the trailing twelve months is around 9.70%, more than GBFFX's 4.84% yield.
| TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
IFAFX American Funds Income Fund of America Class F1 | 9.70% | 9.91% | 6.33% | 2.90% | 6.94% | 6.61% | 2.76% | 4.95% | 7.39% | 4.20% | 3.01% | 5.02% |
GBFFX GMO Benchmark-Free Fund | 4.84% | 5.11% | 1.81% | 5.72% | 5.48% | 4.60% | 3.32% | 4.00% | 3.92% | 2.90% | 2.72% | 6.67% |
Drawdowns
IFAFX vs. GBFFX - Drawdown Comparison
The maximum IFAFX drawdown since its inception was -41.90%, which is greater than GBFFX's maximum drawdown of -26.62%. Use the drawdown chart below to compare losses from any high point for IFAFX and GBFFX.
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Drawdown Indicators
| IFAFX | GBFFX | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -41.90% | -26.62% | -15.28% |
Max Drawdown (1Y)Largest decline over 1 year | -8.22% | -6.04% | -2.18% |
Max Drawdown (5Y)Largest decline over 5 years | -15.84% | -15.91% | +0.07% |
Max Drawdown (10Y)Largest decline over 10 years | -26.13% | -26.62% | +0.49% |
Current DrawdownCurrent decline from peak | -4.45% | -3.58% | -0.87% |
Average DrawdownAverage peak-to-trough decline | -3.94% | -4.42% | +0.48% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 1.76% | 1.56% | +0.20% |
Volatility
IFAFX vs. GBFFX - Volatility Comparison
American Funds Income Fund of America Class F1 (IFAFX) and GMO Benchmark-Free Fund (GBFFX) have volatilities of 3.34% and 3.36%, respectively, indicating that both stocks experience similar levels of price fluctuations. This suggests that the risk associated with both stocks, as measured by volatility, is nearly the same. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| IFAFX | GBFFX | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 3.34% | 3.36% | -0.02% |
Volatility (6M)Calculated over the trailing 6-month period | 5.62% | 5.27% | +0.35% |
Volatility (1Y)Calculated over the trailing 1-year period | 9.54% | 7.98% | +1.56% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 9.48% | 8.02% | +1.46% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 10.67% | 9.07% | +1.60% |