American Funds Fundamental Investors® Class F-3 (FUNFX) Sortino Ratio: 1.78
FUNFX's Sortino Ratio of 1.78 indicates that for each unit of downside volatility, it generates 1.78 units of excess return. The ratio is calculated using historical daily returns over the past 12 months (as of Apr 1, 2026).
Unlike other measures, Sortino only focuses on downside volatility (losses), making it particularly useful for investors more concerned about protecting against drawdowns than overall price swings.
FUNFX Sortino Ratio Rank
FUNFX ranks above 72.1% of all investments in our database based on Sortino Ratio over the past 12 months, indicating above-average returns relative to downside risk taken. Securities are ranked from 0 (worst) to 100 (best).
What moves the rank
- Strong returns with minimal downside volatility → Higher rank
- Severe or frequent drawdowns → Lower rank
- Upside volatility → No impact (Sortino doesn't penalize upside swings)
What you can do with this information
- Above-average downside protection with room for improvement
- Compare against category peers to gauge relative positioning
- Monitor for movement toward top tier or decline toward median
- Consider pairing with top-tier holdings to improve portfolio risk profile
FUNFX Sortino Ratio Market Positioning
The chart shows FUNFX's Sortino Ratio relative to all mutual funds on our platform, with color zones indicating percentile rankings. Higher ratios indicate better downside-adjusted returns.
- Red zone (bottom 25%): 1.02 or lower
- Yellow zone (middle 50%): 1.02 to 1.91
- Green zone (top 25%): 1.91 or higher
- Top 1%: 7.37+
- Median: 1.45 — half of all investments score higher
How it compares to other similar mutual funds
The table compares American Funds Fundamental Investors® Class F-3's Sortino Ratio with other mutual funds in the Large Cap Blend Equities category across multiple time periods, showing how FUNFX's risk-adjusted performance compares to similar funds.
Data shows 1-, 5-, and 10-year periods, plus each fund's all-time average, as of Apr 1, 2026.
| Symbol | Name | 1Y Sortino Ratio | 5Y Sortino Ratio | 10Y Sortino Ratio | All Time Sortino Ratio |
|---|---|---|---|---|---|
| VPMAX | Vanguard PRIMECAP Fund Admiral Shares | 3.07 | |||
| POGSX | Pin Oak Equity | 2.75 | |||
| SGOIX | First Eagle Overseas Fund Class I | 2.51 | |||
| PRSGX | T. Rowe Price Spectrum Diversified Equity Fund | 2.45 | |||
| DHAMX | Centre American Select Equity Fund | 2.37 | |||
| PAGRX | Permanent Portfolio Aggressive Growth Portfolio | 2.25 | |||
| PAGDX | Permanent Portfolio Aggressive Growth Fund Class A | 2.23 | |||
| DFIEX | DFA International Core Equity Portfolio I | 2.18 | |||
| ORDNX | North Square Preferred and Income Securities Fund | 2.17 | |||
| FNSTX | Fidelity Infrastructure Fund | 2.09 | |||
| FUNFX | American Funds Fundamental Investors® Class F-3 | 1.78 |
Historical Sortino Ratio
The chart shows FUNFX's rolling Sortino ratio over time compared to your chosen benchmark. Rising trends indicate improving returns relative to downside risk, while declining trends may signal deteriorating risk-adjusted performance or increased volatility during market stress. Use multiple timeframes to distinguish short-term fluctuations from long-term patterns.
Identify market cycles by observing when FUNFX consistently outperforms (line above benchmark), underperforms (below benchmark), or aligns with the benchmark.
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Explore FUNFX risk-adjusted metrics in detail
Dive deeper into individual metrics with historical trends, benchmark comparisons, and performance across different time periods.