CPPAX vs. RGAGX

Last updated Jun 4, 2026

CPPAX (American Funds Preservation Portfolio) and RGAGX (American Funds The Growth Fund of America Class R-6) are both mutual funds - CPPAX is a Short-Term Bond fund managed by American Funds, while RGAGX is a Large Cap Growth Equities fund managed by American Funds. Over the past 10 years, CPPAX returned 1.67%/yr vs 16.39%/yr for RGAGX. At a correlation of -0.05, they often move in opposite directions. CPPAX charges 0.61%/yr vs 0.30%/yr for RGAGX.

Performance

CPPAX vs. RGAGX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in American Funds Preservation Portfolio (CPPAX) and American Funds The Growth Fund of America Class R-6 (RGAGX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, CPPAX achieves a -0.09% return, which is significantly lower than RGAGX's 10.24% return. Over the past 10 years, CPPAX has underperformed RGAGX with an annualized return of 1.67%, while RGAGX has yielded a comparatively higher 16.39% annualized return.

CPPAX

• 1D: 0.00%
• 1M: 0.10%
• YTD: -0.09%
• 6M: 0.15%
• 1Y: 3.18%
• 3Y*: 3.96%
• 5Y*: 1.28%
• 10Y*: 1.67%

RGAGX

• 1D: -0.33%
• 1M: 6.84%
• YTD: 10.24%
• 6M: 9.86%
• 1Y: 26.58%
• 3Y*: 25.54%
• 5Y*: 12.86%
• 10Y*: 16.39%

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

CPPAX vs. RGAGX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
CPPAX American Funds Preservation Portfolio	-0.09%	5.51%	3.66%	4.09%	-6.14%	-0.62%	5.84%	3.92%	0.89%	0.96%
RGAGX American Funds The Growth Fund of America Class R-6	10.24%	20.08%	28.41%	37.66%	-30.53%	19.67%	38.30%	29.22%	-2.88%	26.53%

Correlation

The correlation between CPPAX and RGAGX is 0.22, which is low. Their price movements are largely independent, making them effective diversification partners.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.22
Correlation (3Y) Calculated over the trailing 3-year period	0.13
Correlation (5Y) Calculated over the trailing 5-year period	0.13
Correlation (10Y) Calculated over the trailing 10-year period	0.01
Correlation (All Time) Calculated using the full available price history since May 25, 2012	-0.05

The correlation between CPPAX and RGAGX shifts across timeframes, from -0.05 (all time) to 0.22 (1 year), reflecting how their relationship changes across market environments.

Return for Risk

CPPAX vs. RGAGX — Risk / Return Rank

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

CPPAX

CPPAX Risk / Return Rank: 31
CPPAX Sharpe Ratio Rank: 29
CPPAX Sortino Ratio Rank: 33
CPPAX Omega Ratio Rank: 39
CPPAX Calmar Ratio Rank: 26
CPPAX Martin Ratio Rank: 26

RGAGX

RGAGX Risk / Return Rank: 35
RGAGX Sharpe Ratio Rank: 39
RGAGX Sortino Ratio Rank: 35
RGAGX Omega Ratio Rank: 37
RGAGX Calmar Ratio Rank: 28
RGAGX Martin Ratio Rank: 35

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.

CPPAX vs. RGAGX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for American Funds Preservation Portfolio (CPPAX) and American Funds The Growth Fund of America Class R-6 (RGAGX). 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.

	CPPAX	RGAGX	Difference
Sharpe ratio Return per unit of total volatility	1.56	1.80	-0.24
Sortino ratio Return per unit of downside risk	2.37	2.46	-0.09
Omega ratio Gain probability vs. loss probability	1.34	1.32	+0.01
Calmar ratio Return relative to maximum drawdown	1.92	1.99	-0.06
Martin ratio Return relative to average drawdown	6.22	7.76	-1.54
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

CPPAX vs. RGAGX - Sharpe Ratio Comparison

The current CPPAX Sharpe Ratio is 1.56, which is comparable to the RGAGX Sharpe Ratio of 1.80. The chart below compares the historical Sharpe Ratios of CPPAX and RGAGX, 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

	CPPAX	RGAGX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	1.56	1.80	-0.24
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.42	0.64	-0.22
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.68	0.84	-0.16
Sharpe Ratio (All Time) Calculated using the full available price history	0.65	0.86	-0.20

Drawdowns

CPPAX vs. RGAGX - Drawdown Comparison

The maximum CPPAX drawdown since its inception was -8.59%, smaller than the maximum RGAGX drawdown of -36.19%. Use the drawdown chart below to compare losses from any high point for CPPAX and RGAGX.

Drawdown Indicators

	CPPAX	RGAGX	Difference
Max Drawdown Largest peak-to-trough decline	-8.59%	-36.19%	+27.60%
Max Drawdown (1Y) Largest decline over 1 year	-1.67%	-13.71%	+12.04%
Max Drawdown (3Y) Largest decline over 3 years	-1.67%	-21.54%	+19.87%
Max Drawdown (5Y) Largest decline over 5 years	-8.57%	-36.19%	+27.62%
Max Drawdown (10Y) Largest decline over 10 years	-8.59%	-36.19%	+27.60%
Current Drawdown Current decline from peak	-0.96%	-0.33%	-0.63%
Average Drawdown Average peak-to-trough decline	-1.31%	-5.49%	+4.18%
Ulcer Index Depth and duration of drawdowns from previous peaks	0.51%	3.50%	-2.99%

Volatility

CPPAX vs. RGAGX - Volatility Comparison

The current volatility for American Funds Preservation Portfolio (CPPAX) is 0.59%, while American Funds The Growth Fund of America Class R-6 (RGAGX) has a volatility of 3.69%. This indicates that CPPAX experiences smaller price fluctuations and is considered to be less risky than RGAGX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	CPPAX	RGAGX	Difference
Volatility (1M) Calculated over the trailing 1-month period	0.59%	3.69%	-3.10%
Volatility (6M) Calculated over the trailing 6-month period	1.39%	11.65%	-10.26%
Volatility (1Y) Calculated over the trailing 1-year period	2.06%	15.15%	-13.09%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	3.06%	20.25%	-17.19%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	2.48%	19.69%	-17.21%

CPPAX vs. RGAGX - Expense Ratio Comparison

CPPAX has a 0.61% expense ratio, which is higher than RGAGX's 0.30% expense ratio.

Dividends

CPPAX vs. RGAGX - Dividend Comparison

CPPAX's dividend yield for the trailing twelve months is around 3.49%, less than RGAGX's 9.97% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
CPPAX American Funds Preservation Portfolio	3.49%	3.56%	4.03%	3.24%	2.02%	0.95%	2.32%	1.91%	1.59%	1.06%	1.26%	1.11%
RGAGX American Funds The Growth Fund of America Class R-6	9.97%	10.99%	9.29%	7.70%	4.44%	8.49%	4.57%	7.93%	12.36%	7.34%	6.95%	9.22%

Frequently Asked Questions

Can I hold both CPPAX and RGAGX in my portfolio?

CPPAX and RGAGX have a correlation of 0.22, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, CPPAX or RGAGX?

RGAGX has higher volatility (3.69%) compared to CPPAX (0.59%). In terms of maximum drawdown, CPPAX dropped -8.59% vs RGAGX's -36.19%.

Which has better risk-adjusted returns?

RGAGX currently has the higher Sharpe Ratio (1.80 vs 1.56), 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.