CPGAX vs. VTWAX

Last updated Jun 4, 2026

CPGAX (American Funds Global Growth Portfolio) and VTWAX (Vanguard Total World Stock Index Fund Admiral Shares) are both Global Equities funds. Over the past 5 years, CPGAX returned 9.17%/yr vs 11.34%/yr for VTWAX. With a 0.97 correlation, they move nearly in lockstep. CPGAX charges 0.40%/yr vs 0.09%/yr for VTWAX.

Performance

CPGAX vs. VTWAX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in American Funds Global Growth Portfolio (CPGAX) and Vanguard Total World Stock Index Fund Admiral Shares (VTWAX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

The year-to-date returns for both investments are quite close, with CPGAX having a 13.11% return and VTWAX slightly higher at 13.15%.

CPGAX

• 1D: 0.34%
• 1M: 6.19%
• YTD: 13.11%
• 6M: 14.29%
• 1Y: 30.48%
• 3Y*: 20.82%
• 5Y*: 9.17%
• 10Y*: 12.51%

VTWAX

• 1D: 0.37%
• 1M: 5.68%
• YTD: 13.15%
• 6M: 14.09%
• 1Y: 30.29%
• 3Y*: 21.27%
• 5Y*: 11.34%
• 10Y*: —

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

CPGAX vs. VTWAX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019
CPGAX American Funds Global Growth Portfolio	13.11%	22.99%	14.81%	24.05%	-25.77%	12.89%	27.36%	18.47%
VTWAX Vanguard Total World Stock Index Fund Admiral Shares	13.15%	22.43%	16.43%	21.85%	-18.02%	18.17%	16.67%	17.53%

Correlation

The correlation between CPGAX and VTWAX is 0.97 - 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	0.97
Correlation (3Y) Calculated over the trailing 3-year period	0.97
Correlation (5Y) Calculated over the trailing 5-year period	0.98
Correlation (All Time) Calculated using the full available price history since Feb 8, 2019	0.97

The correlation between CPGAX and VTWAX has been stable across timeframes, ranging from 0.97 to 0.98 - a consistent structural relationship.

Return for Risk

CPGAX vs. VTWAX — Risk / Return Rank

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

CPGAX

CPGAX Risk / Return Rank: 54
CPGAX Sharpe Ratio Rank: 54
CPGAX Sortino Ratio Rank: 51
CPGAX Omega Ratio Rank: 51
CPGAX Calmar Ratio Rank: 51
CPGAX Martin Ratio Rank: 61

VTWAX

VTWAX Risk / Return Rank: 70
VTWAX Sharpe Ratio Rank: 73
VTWAX Sortino Ratio Rank: 67
VTWAX Omega Ratio Rank: 65
VTWAX Calmar Ratio Rank: 68
VTWAX Martin Ratio Rank: 75

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.

CPGAX vs. VTWAX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for American Funds Global Growth Portfolio (CPGAX) and Vanguard Total World Stock Index Fund Admiral Shares (VTWAX). 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.

	CPGAX	VTWAX	Difference
Sharpe ratio: Return per unit of total volatility	2.17	2.49	-0.32
Sortino ratio: Return per unit of downside risk	3.01	3.41	-0.40
Omega ratio: Gain probability vs. loss probability	1.39	1.45	-0.06
Calmar ratio: Return relative to maximum drawdown	2.73	3.19	-0.46
Martin ratio: Return relative to average drawdown	12.10	14.26	-2.16
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

CPGAX vs. VTWAX - Sharpe Ratio Comparison

The current CPGAX Sharpe Ratio is 2.17, which is comparable to the VTWAX Sharpe Ratio of 2.49. The chart below compares the historical Sharpe Ratios of CPGAX and VTWAX, 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

	CPGAX	VTWAX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	2.17	2.49	-0.32
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.54	0.73	-0.19
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.73	—	—
Sharpe Ratio (All Time) Calculated using the full available price history	0.75	0.77	-0.03

Drawdowns

CPGAX vs. VTWAX - Drawdown Comparison

The maximum CPGAX drawdown since its inception was -34.42%, roughly equal to the maximum VTWAX drawdown of -34.20%. Use the drawdown chart below to compare losses from any high point for CPGAX and VTWAX.

Drawdown Indicators

	CPGAX	VTWAX	Difference
Max Drawdown Largest peak-to-trough decline	-34.42%	-34.20%	-0.22%
Max Drawdown (1Y) Largest decline over 1 year	-11.33%	-9.64%	-1.69%
Max Drawdown (3Y) Largest decline over 3 years	-17.99%	-16.43%	-1.56%
Max Drawdown (5Y) Largest decline over 5 years	-34.42%	-26.40%	-8.02%
Max Drawdown (10Y) Largest decline over 10 years	-34.42%	—	—
Current Drawdown Current decline from peak	0.00%	0.00%	0.00%
Average Drawdown Average peak-to-trough decline	-5.93%	-5.30%	-0.63%
Ulcer Index Depth and duration of drawdowns from previous peaks	2.55%	2.15%	+0.40%

Volatility

CPGAX vs. VTWAX - Volatility Comparison

American Funds Global Growth Portfolio (CPGAX) has a higher volatility of 4.43% compared to Vanguard Total World Stock Index Fund Admiral Shares (VTWAX) at 3.55%. This indicates that CPGAX's price experiences larger fluctuations and is considered to be riskier than VTWAX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	CPGAX	VTWAX	Difference
Volatility (1M) Calculated over the trailing 1-month period	4.43%	3.55%	+0.88%
Volatility (6M) Calculated over the trailing 6-month period	11.59%	9.82%	+1.77%
Volatility (1Y) Calculated over the trailing 1-year period	14.26%	12.37%	+1.89%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	17.07%	15.71%	+1.36%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	17.29%	18.20%	-0.91%

CPGAX vs. VTWAX - Expense Ratio Comparison

CPGAX has a 0.40% expense ratio, which is higher than VTWAX's 0.09% expense ratio.

Dividends

CPGAX vs. VTWAX - Dividend Comparison

CPGAX's dividend yield for the trailing twelve months is around 4.94%, more than VTWAX's 1.56% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
CPGAX American Funds Global Growth Portfolio	4.94%	5.59%	4.29%	0.92%	7.95%	3.33%	0.77%	4.89%	5.69%	6.21%	3.66%	3.92%
VTWAX Vanguard Total World Stock Index Fund Admiral Shares	1.56%	1.80%	1.92%	2.06%	2.17%	1.79%	1.64%	2.28%	0.00%	0.00%	0.00%	0.00%

Frequently Asked Questions

Can I hold both CPGAX and VTWAX in my portfolio?

With a correlation of 0.97, CPGAX and VTWAX 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, CPGAX or VTWAX?

CPGAX has higher volatility (4.43%) compared to VTWAX (3.55%). In terms of maximum drawdown, CPGAX dropped -34.42% vs VTWAX's -34.20%.

Which has better risk-adjusted returns?

VTWAX currently has the higher Sharpe Ratio (2.49 vs 2.17), 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.