SMCWX vs. AGTHX

Last updated Jun 25, 2026

SMCWX (American Funds SMALLCAP World Fund Class A) and AGTHX (American Funds The Growth Fund of America Class A) are both mutual funds - SMCWX is a Foreign Small & Mid Cap Equities fund managed by American Funds, while AGTHX is a Large Cap Growth Equities fund actively managed by Capital Group. Over the past 10 years, SMCWX returned 10.57%/yr vs 16.02%/yr for AGTHX. Their correlation of 0.86 suggests significant overlap in exposure. SMCWX charges 1.02%/yr vs 0.59%/yr for AGTHX.

Performance

SMCWX vs. AGTHX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in American Funds SMALLCAP World Fund Class A (SMCWX) and American Funds The Growth Fund of America Class A (AGTHX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, SMCWX achieves a 14.26% return, which is significantly higher than AGTHX's 6.36% return. Over the past 10 years, SMCWX has underperformed AGTHX with an annualized return of 10.57%, while AGTHX has yielded a comparatively higher 16.02% annualized return.

SMCWX

• 1D: -2.21%
• 1M: 2.35%
• YTD: 14.26%
• 6M: 12.58%
• 1Y: 23.32%
• 3Y*: 13.30%
• 5Y*: 1.84%
• 10Y*: 10.57%

AGTHX

• 1D: -2.17%
• 1M: -0.26%
• YTD: 6.36%
• 6M: 5.17%
• 1Y: 18.09%
• 3Y*: 23.04%
• 5Y*: 10.82%
• 10Y*: 16.02%

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

SMCWX vs. AGTHX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
SMCWX American Funds SMALLCAP World Fund Class A	14.26%	14.07%	2.33%	18.86%	-29.90%	10.14%	37.46%	30.79%	-9.75%	26.85%
AGTHX American Funds The Growth Fund of America Class A	6.36%	19.73%	28.02%	37.22%	-30.75%	19.32%	37.83%	28.16%	-3.15%	26.14%

Correlation

The correlation between SMCWX and AGTHX is 0.82, indicating a strong positive relationship between their price movements. Combining them offers limited diversification - they tend to fall together during downturns.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.82
Correlation (3Y) Calculated over the trailing 3-year period	0.85
Correlation (5Y) Calculated over the trailing 5-year period	0.89
Correlation (10Y) Calculated over the trailing 10-year period	0.88
Correlation (All Time) Calculated using the full available price history since Apr 30, 1990	0.86

The correlation between SMCWX and AGTHX has been stable across timeframes, ranging from 0.82 to 0.89 - a consistent structural relationship.

Return for Risk

SMCWX vs. AGTHX — Risk / Return Rank

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

SMCWX

SMCWX Risk / Return Rank: 35
SMCWX Sharpe Ratio Rank: 32
SMCWX Sortino Ratio Rank: 33
SMCWX Omega Ratio Rank: 31
SMCWX Calmar Ratio Rank: 36
SMCWX Martin Ratio Rank: 42

AGTHX

AGTHX Risk / Return Rank: 22
AGTHX Sharpe Ratio Rank: 22
AGTHX Sortino Ratio Rank: 21
AGTHX Omega Ratio Rank: 23
AGTHX Calmar Ratio Rank: 19
AGTHX Martin Ratio Rank: 26

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.

SMCWX vs. AGTHX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for American Funds SMALLCAP World Fund Class A (SMCWX) and American Funds The Growth Fund of America Class A (AGTHX). 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.

Values are calculated on a 1-year rolling basis and updated daily. Risk-adjusted metrics are more stable over longer periods — use the period switch above to explore them.

	SMCWX	AGTHX	Difference
Sharpe ratio: Return per unit of total volatility	1.49	1.23	+0.26
Sortino ratio: Return per unit of downside risk	2.18	1.73	+0.45
Omega ratio: Gain probability vs. loss probability	1.27	1.23	+0.04
Calmar ratio: Return relative to maximum drawdown	2.13	1.47	+0.66
Martin ratio: Return relative to average drawdown	8.45	5.60	+2.85

SMCWX vs. AGTHX - Sharpe Ratio Comparison

The current SMCWX Sharpe Ratio is 1.49, which is comparable to the AGTHX Sharpe Ratio of 1.23. The chart below compares the historical Sharpe Ratios of SMCWX and AGTHX, calculated using daily returns over the previous 12 months. A higher Sharpe Ratio indicates better risk-adjusted performance relative to the risk-free rate.

Drawdowns

SMCWX vs. AGTHX - Drawdown Comparison

The maximum SMCWX drawdown since its inception was -62.46%, which is greater than AGTHX's maximum drawdown of -51.91%. Use the drawdown chart below to compare losses from any high point for SMCWX and AGTHX.

Drawdown Indicators

	SMCWX	AGTHX	Difference
Max Drawdown Largest peak-to-trough decline	-62.46%	-51.91%	-10.55%
Max Drawdown (1Y) Largest decline over 1 year	-11.83%	-13.76%	+1.93%
Max Drawdown (3Y) Largest decline over 3 years	-21.40%	-21.57%	+0.17%
Max Drawdown (5Y) Largest decline over 5 years	-39.79%	-36.38%	-3.41%
Max Drawdown (10Y) Largest decline over 10 years	-39.79%	-36.38%	-3.41%
Current Drawdown Current decline from peak	-2.21%	-3.70%	+1.49%
Average Drawdown Average peak-to-trough decline	-14.89%	-9.19%	-5.70%
Ulcer Index Depth and duration of drawdowns from previous peaks	2.98%	3.60%	-0.62%

Volatility

SMCWX vs. AGTHX - Volatility Comparison

American Funds SMALLCAP World Fund Class A (SMCWX) and American Funds The Growth Fund of America Class A (AGTHX) have volatilities of 6.88% and 7.16%, respectively, indicating that both stocks experience similar levels of price fluctuations. This suggests that the risk associated with both stocks, as measured by volatility, is nearly the same. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	SMCWX	AGTHX	Difference
Volatility (1M) Calculated over the trailing 1-month period	6.88%	7.16%	-0.28%
Volatility (6M) Calculated over the trailing 6-month period	14.09%	13.17%	+0.92%
Volatility (1Y) Calculated over the trailing 1-year period	16.89%	16.43%	+0.46%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	18.40%	20.45%	-2.05%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	17.92%	19.75%	-1.83%

SMCWX vs. AGTHX - Expense Ratio Comparison

SMCWX has a 1.02% expense ratio, which is higher than AGTHX's 0.59% expense ratio.

Dividends

SMCWX vs. AGTHX - Dividend Comparison

SMCWX's dividend yield for the trailing twelve months is around 4.21%, less than AGTHX's 10.05% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
AGTHX American Funds The Growth Fund of America Class A	10.05%	10.69%	8.99%	7.40%	4.05%	8.18%	4.30%	7.15%	11.99%	7.03%	6.61%	8.87%
SMCWX American Funds SMALLCAP World Fund Class A	4.21%	4.84%	0.60%	0.64%	0.00%	9.24%	1.60%	4.24%	7.06%	4.48%	0.35%	6.49%

Frequently Asked Questions

Can I hold both SMCWX and AGTHX in my portfolio?

SMCWX and AGTHX have a correlation of 0.82, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, SMCWX or AGTHX?

AGTHX has higher volatility (7.16%) compared to SMCWX (6.88%). In terms of maximum drawdown, SMCWX dropped -62.46% vs AGTHX's -51.91%.

Which has better risk-adjusted returns?

SMCWX currently has the higher Sharpe Ratio (1.49 vs 1.23), 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.