KGGAX vs. FUNFX

Last updated Apr 1, 2026

Compare and contrast key facts about Kopernik Global All-Cap Fund Class A (KGGAX) and American Funds Fundamental Investors® Class F-3 (FUNFX).

KGGAX is managed by Kopernik. It was launched on Nov 1, 2013. FUNFX is managed by American Funds. It was launched on Aug 1, 2008.

Performance

KGGAX vs. FUNFX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Kopernik Global All-Cap Fund Class A (KGGAX) and American Funds Fundamental Investors® Class F-3 (FUNFX). The values are adjusted to include any dividend payments, if applicable.

KGGAX vs. FUNFX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
KGGAX Kopernik Global All-Cap Fund Class A	4.60%	64.46%	-4.79%	13.08%	-9.24%	16.59%	36.89%	9.76%	-11.34%	1.28%
FUNFX American Funds Fundamental Investors® Class F-3	-6.06%	24.57%	23.13%	26.25%	-16.38%	22.81%	15.28%	27.47%	-7.87%	19.59%

Returns By Period

In the year-to-date period, KGGAX achieves a 4.60% return, which is significantly higher than FUNFX's -6.06% return.

KGGAX

• 1D: -0.06%
• 1M: -9.46%
• YTD: 4.60%
• 6M: 13.01%
• 1Y: 50.39%
• 3Y*: 21.31%
• 5Y*: 12.69%
• 10Y*: 14.28%

FUNFX

• 1D: -0.62%
• 1M: -9.87%
• YTD: -6.06%
• 6M: -1.95%
• 1Y: 20.82%
• 3Y*: 19.72%
• 5Y*: 11.92%
• 10Y*: —

*Multi-year figures are annualized to reflect compound growth (CAGR)

KGGAX vs. FUNFX - Expense Ratio Comparison

KGGAX has a 1.26% expense ratio, which is higher than FUNFX's 0.28% expense ratio.

KGGAX

Kopernik Global All-Cap Fund Class A

FUNFX

American Funds Fundamental Investors® Class F-3

Return for Risk

KGGAX vs. FUNFX — Risk / Return Rank

Compare risk-adjusted metric ranks to identify better-performing investments over the past 12 months.

KGGAX

KGGAX Risk / Return Rank: 97
KGGAX Sharpe Ratio Rank: 99
KGGAX Sortino Ratio Rank: 97
KGGAX Omega Ratio Rank: 96
KGGAX Calmar Ratio Rank: 98
KGGAX Martin Ratio Rank: 97

FUNFX

FUNFX Risk / Return Rank: 71
FUNFX Sharpe Ratio Rank: 67
FUNFX Sortino Ratio Rank: 72
FUNFX Omega Ratio Rank: 67
FUNFX Calmar Ratio Rank: 71
FUNFX Martin Ratio Rank: 76

The rank (0–100) shows how this investment's returns compare to the risk taken. Higher = better. Based on the past 12 months of data, combining Sharpe, Sortino, and other metrics used by quantitative funds and institutional investors.

KGGAX vs. FUNFX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Kopernik Global All-Cap Fund Class A (KGGAX) and American Funds Fundamental Investors® Class F-3 (FUNFX). 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.

	KGGAX	FUNFX	Difference
Sharpe ratio Return per unit of total volatility	3.26	1.18	+2.08
Sortino ratio Return per unit of downside risk	3.87	1.78	+2.09
Omega ratio Gain probability vs. loss probability	1.58	1.25	+0.33
Calmar ratio Return relative to maximum drawdown	4.63	1.64	+2.99
Martin ratio Return relative to average drawdown	16.87	7.35	+9.52
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

KGGAX vs. FUNFX - Sharpe Ratio Comparison

The current KGGAX Sharpe Ratio is 3.26, which is higher than the FUNFX Sharpe Ratio of 1.18. The chart below compares the historical Sharpe Ratios of KGGAX and FUNFX, offering insights into how both investments have performed under varying market conditions. These values are calculated using daily returns over the previous 12 months.

Sharpe Ratios by Period

	KGGAX	FUNFX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	3.26	1.18	+2.08
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.85	0.72	+0.13
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.95	—	—
Sharpe Ratio (All Time) Calculated using the full available price history	0.60	0.71	-0.12

Correlation

The correlation between KGGAX and FUNFX is 0.45, which is considered to be moderate. This suggests that the two assets have some degree of positive relationship in their price movements. Moderate correlation can be acceptable for portfolio diversification, offering a balance between risk and potential returns.

Dividends

KGGAX vs. FUNFX - Dividend Comparison

KGGAX's dividend yield for the trailing twelve months is around 15.40%, more than FUNFX's 9.43% yield.

	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
KGGAX Kopernik Global All-Cap Fund Class A	15.40%	16.11%	1.04%	8.29%	13.22%	9.00%	4.59%	2.72%	0.00%	4.12%	3.09%	0.40%
FUNFX American Funds Fundamental Investors® Class F-3	9.43%	8.83%	9.21%	6.10%	5.33%	11.29%	2.90%	7.21%	9.65%	7.57%	0.00%	0.00%

Drawdowns

KGGAX vs. FUNFX - Drawdown Comparison

The maximum KGGAX drawdown since its inception was -45.27%, which is greater than FUNFX's maximum drawdown of -33.92%. Use the drawdown chart below to compare losses from any high point for KGGAX and FUNFX.

Drawdown Indicators

	KGGAX	FUNFX	Difference
Max Drawdown Largest peak-to-trough decline	-45.27%	-33.92%	-11.35%
Max Drawdown (1Y) Largest decline over 1 year	-10.63%	-11.36%	+0.73%
Max Drawdown (5Y) Largest decline over 5 years	-26.59%	-24.88%	-1.71%
Max Drawdown (10Y) Largest decline over 10 years	-31.90%	—	—
Current Drawdown Current decline from peak	-9.46%	-10.62%	+1.16%
Average Drawdown Average peak-to-trough decline	-9.76%	-4.77%	-4.99%
Ulcer Index Depth and duration of drawdowns from previous peaks	2.92%	2.53%	+0.39%

Volatility

KGGAX vs. FUNFX - Volatility Comparison

Kopernik Global All-Cap Fund Class A (KGGAX) has a higher volatility of 5.61% compared to American Funds Fundamental Investors® Class F-3 (FUNFX) at 4.98%. This indicates that KGGAX's price experiences larger fluctuations and is considered to be riskier than FUNFX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	KGGAX	FUNFX	Difference
Volatility (1M) Calculated over the trailing 1-month period	5.61%	4.98%	+0.63%
Volatility (6M) Calculated over the trailing 6-month period	12.30%	10.64%	+1.66%
Volatility (1Y) Calculated over the trailing 1-year period	15.25%	17.95%	-2.70%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	15.07%	16.67%	-1.60%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	15.05%	18.15%	-3.10%