RWIGX vs. ANCFX

Last updated Jun 4, 2026

RWIGX (Capital World Growth and Income Fund Class R-6) and ANCFX (American Funds Fundamental Investors Class A) are both mutual funds - RWIGX is a Global Equities fund tracking the MSCI All Country World Index (ACWI), while ANCFX is a Large Cap Blend Equities fund managed by American Funds. Over the past 10 years, RWIGX returned 12.56%/yr vs 14.90%/yr for ANCFX. Their correlation of 0.94 suggests significant overlap in exposure. RWIGX charges 0.41%/yr vs 0.59%/yr for ANCFX.

Performance

RWIGX vs. ANCFX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Capital World Growth and Income Fund Class R-6 (RWIGX) and American Funds Fundamental Investors Class A (ANCFX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, RWIGX achieves a 16.57% return, which is significantly higher than ANCFX's 15.14% return. Over the past 10 years, RWIGX has underperformed ANCFX with an annualized return of 12.56%, while ANCFX has yielded a comparatively higher 14.90% annualized return.

RWIGX

• 1D: 0.65%
• 1M: 6.72%
• YTD: 16.57%
• 6M: 18.15%
• 1Y: 34.59%
• 3Y*: 22.57%
• 5Y*: 11.80%
• 10Y*: 12.56%

ANCFX

• 1D: 0.00%
• 1M: 5.89%
• YTD: 15.14%
• 6M: 16.14%
• 1Y: 34.54%
• 3Y*: 26.09%
• 5Y*: 14.91%
• 10Y*: 14.90%

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

RWIGX vs. ANCFX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
RWIGX Capital World Growth and Income Fund Class R-6	16.57%	25.09%	14.21%	20.87%	-17.02%	15.11%	15.71%	25.94%	-10.32%	24.95%
ANCFX American Funds Fundamental Investors Class A	15.14%	24.21%	22.73%	25.86%	-16.66%	22.43%	14.92%	27.07%	-8.13%	22.80%

Correlation

The correlation between RWIGX and ANCFX is 0.95 - these two move nearly in lockstep. At this level, holding both provides almost no diversification benefit. If you already own one, adding the other does little to reduce portfolio risk.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.95
Correlation (3Y) Calculated over the trailing 3-year period	0.95
Correlation (5Y) Calculated over the trailing 5-year period	0.96
Correlation (10Y) Calculated over the trailing 10-year period	0.95
Correlation (All Time) Calculated using the full available price history since Jan 5, 2010	0.94

The correlation between RWIGX and ANCFX has been stable across timeframes, ranging from 0.94 to 0.96 - a consistent structural relationship.

Return for Risk

RWIGX vs. ANCFX — Risk / Return Rank

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

RWIGX

RWIGX Risk / Return Rank: 75
RWIGX Sharpe Ratio Rank: 80
RWIGX Sortino Ratio Rank: 74
RWIGX Omega Ratio Rank: 71
RWIGX Calmar Ratio Rank: 73
RWIGX Martin Ratio Rank: 78

ANCFX

ANCFX Risk / Return Rank: 75
ANCFX Sharpe Ratio Rank: 79
ANCFX Sortino Ratio Rank: 69
ANCFX Omega Ratio Rank: 69
ANCFX Calmar Ratio Rank: 73
ANCFX Martin Ratio Rank: 82

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.

RWIGX vs. ANCFX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Capital World Growth and Income Fund Class R-6 (RWIGX) and American Funds Fundamental Investors Class A (ANCFX). 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.

	RWIGX	ANCFX	Difference
Sharpe ratio: Return per unit of total volatility	2.60	2.58	+0.01
Sortino ratio: Return per unit of downside risk	3.57	3.47	+0.11
Omega ratio: Gain probability vs. loss probability	1.47	1.47	+0.01
Calmar ratio: Return relative to maximum drawdown	3.34	3.33	+0.01
Martin ratio: Return relative to average drawdown	14.67	15.41	-0.74
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

RWIGX vs. ANCFX - Sharpe Ratio Comparison

The current RWIGX Sharpe Ratio is 2.60, which is comparable to the ANCFX Sharpe Ratio of 2.58. The chart below compares the historical Sharpe Ratios of RWIGX and ANCFX, calculated using daily returns over the previous 12 months. A higher Sharpe Ratio indicates better risk-adjusted performance relative to the risk-free rate.

Sharpe Ratios by Period

	RWIGX	ANCFX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	2.60	2.58	+0.01
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.78	0.89	-0.11
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.79	0.84	-0.06
Sharpe Ratio (All Time) Calculated using the full available price history	0.65	0.64	+0.01

Drawdowns

RWIGX vs. ANCFX - Drawdown Comparison

The maximum RWIGX drawdown since its inception was -31.98%, smaller than the maximum ANCFX drawdown of -53.29%. Use the drawdown chart below to compare losses from any high point for RWIGX and ANCFX.

Drawdown Indicators

	RWIGX	ANCFX	Difference
Max Drawdown Largest peak-to-trough decline	-31.98%	-53.29%	+21.31%
Max Drawdown (1Y) Largest decline over 1 year	-10.50%	-10.66%	+0.16%
Max Drawdown (3Y) Largest decline over 3 years	-15.54%	-17.97%	+2.43%
Max Drawdown (5Y) Largest decline over 5 years	-27.03%	-25.07%	-1.96%
Max Drawdown (10Y) Largest decline over 10 years	-31.98%	-33.93%	+1.95%
Current Drawdown Current decline from peak	0.00%	0.00%	0.00%
Average Drawdown Average peak-to-trough decline	-5.15%	-7.32%	+2.17%
Ulcer Index Depth and duration of drawdowns from previous peaks	2.38%	2.30%	+0.08%

Volatility

RWIGX vs. ANCFX - Volatility Comparison

Capital World Growth and Income Fund Class R-6 (RWIGX) has a higher volatility of 4.40% compared to American Funds Fundamental Investors Class A (ANCFX) at 3.68%. This indicates that RWIGX's price experiences larger fluctuations and is considered to be riskier than ANCFX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	RWIGX	ANCFX	Difference
Volatility (1M) Calculated over the trailing 1-month period	4.40%	3.68%	+0.72%
Volatility (6M) Calculated over the trailing 6-month period	11.08%	10.82%	+0.26%
Volatility (1Y) Calculated over the trailing 1-year period	13.51%	13.75%	-0.24%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	15.20%	16.80%	-1.60%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	16.05%	17.73%	-1.68%

RWIGX vs. ANCFX - Expense Ratio Comparison

RWIGX has a 0.41% expense ratio, which is lower than ANCFX's 0.59% expense ratio.

Dividends

RWIGX vs. ANCFX - Dividend Comparison

RWIGX's dividend yield for the trailing twelve months is around 9.36%, more than ANCFX's 7.43% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
ANCFX American Funds Fundamental Investors Class A	7.43%	8.54%	8.90%	5.80%	4.98%	10.97%	2.61%	6.91%	9.31%	7.28%	4.71%	6.08%
RWIGX Capital World Growth and Income Fund Class R-6	9.36%	10.86%	8.23%	3.44%	2.45%	7.16%	1.53%	2.90%	7.37%	6.94%	5.60%	4.04%

Frequently Asked Questions

Can I hold both RWIGX and ANCFX in my portfolio?

With a correlation of 0.95, RWIGX and ANCFX move almost identically. Holding both adds very little diversification - you're essentially doubling your position in the same market segment. Choosing one is usually more capital-efficient.

Which is riskier, RWIGX or ANCFX?

RWIGX has higher volatility (4.40%) compared to ANCFX (3.68%). In terms of maximum drawdown, RWIGX dropped -31.98% vs ANCFX's -53.29%.

Which has better risk-adjusted returns?

RWIGX currently has the higher Sharpe Ratio (2.60 vs 2.58), meaning it's delivered slightly more return per unit of risk over the trailing 12 months. However, this ranking shifts over time - use the Risk/Return Score above for a more comprehensive view that combines Sharpe, Sortino, and other measures used by quantitative funds.