SMCWX vs. CWBFX

Last updated Jul 16, 2026

SMCWX (American Funds SMALLCAP World Fund Class A) and CWBFX (American Funds Capital World Bond Fund) are both mutual funds - SMCWX is a Foreign Small & Mid Cap Equities fund managed by American Funds, while CWBFX is a Global Bonds fund managed by American Funds. Over the past 10 years, SMCWX returned 9.88%/yr vs 0.05%/yr for CWBFX. At a 0.17 correlation, their price movements are largely independent. SMCWX charges 1.02%/yr vs 0.95%/yr for CWBFX.

Performance

SMCWX vs. CWBFX - 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 Capital World Bond Fund (CWBFX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, SMCWX achieves a 12.63% return, which is significantly higher than CWBFX's -1.63% return. Over the past 10 years, SMCWX has outperformed CWBFX with an annualized return of 9.88%, while CWBFX has yielded a comparatively lower 0.05% annualized return.

SMCWX

• 1D: 0.55%
• 1M: -2.48%
• 6M: 8.09%
• YTD: 12.63%
• 1Y: 20.48%
• 3Y*: 10.83%
• 5Y*: 2.09%
• 10Y*: 9.88%

CWBFX

• 1D: 0.32%
• 1M: -1.22%
• 6M: -1.51%
• YTD: -1.63%
• 1Y: 0.78%
• 3Y*: 1.72%
• 5Y*: -2.68%
• 10Y*: 0.05%

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

SMCWX vs. CWBFX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
SMCWX American Funds SMALLCAP World Fund Class A	12.63%	14.07%	2.33%	18.86%	-29.90%	10.14%	37.46%	30.79%	-9.75%	26.85%
CWBFX American Funds Capital World Bond Fund	-1.63%	7.78%	-3.25%	5.81%	-17.52%	-5.17%	9.91%	7.66%	-1.81%	7.26%

Correlation

The correlation between SMCWX and CWBFX is 0.51, which is moderate. They share some common price drivers but move independently often enough to provide real diversification benefit when combined.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.51
Correlation (3Y) Calculated over the trailing 3-year period	0.40
Correlation (5Y) Calculated over the trailing 5-year period	0.38
Correlation (10Y) Calculated over the trailing 10-year period	0.28
Correlation (All Time) Calculated using the full available price history since Apr 30, 1990	0.17

Over the past year, SMCWX and CWBFX have become more correlated (0.51) than their long-term average of 0.17, meaning their price movements have been converging.

Return for Risk

SMCWX vs. CWBFX — Risk / Return Rank

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

SMCWX

SMCWX Risk / Return Rank: 31
SMCWX Sharpe Ratio Rank: 28
SMCWX Sortino Ratio Rank: 30
SMCWX Omega Ratio Rank: 27
SMCWX Calmar Ratio Rank: 32
SMCWX Martin Ratio Rank: 37

CWBFX

CWBFX Risk / Return Rank: 4
CWBFX Sharpe Ratio Rank: 4
CWBFX Sortino Ratio Rank: 3
CWBFX Omega Ratio Rank: 3
CWBFX Calmar Ratio Rank: 4
CWBFX Martin Ratio Rank: 4

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. CWBFX - 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 Capital World Bond Fund (CWBFX). 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	CWBFX	Difference
Sharpe ratio: Return per unit of total volatility	1.13	0.07	+1.06
Sortino ratio: Return per unit of downside risk	1.70	0.14	+1.56
Omega ratio: Gain probability vs. loss probability	1.20	1.02	+0.19
Calmar ratio: Return relative to maximum drawdown	1.64	0.08	+1.56
Martin ratio: Return relative to average drawdown	6.37	0.19	+6.18

SMCWX vs. CWBFX - Sharpe Ratio Comparison

The current SMCWX Sharpe Ratio is 1.13, which is higher than the CWBFX Sharpe Ratio of 0.07. The chart below compares the historical Sharpe Ratios of SMCWX and CWBFX, 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. CWBFX - Drawdown Comparison

The maximum SMCWX drawdown since its inception was -62.46%, which is greater than CWBFX's maximum drawdown of -27.91%. Use the drawdown chart below to compare losses from any high point for SMCWX and CWBFX.

Drawdown Indicators

	SMCWX	CWBFX	Difference
Max Drawdown Largest peak-to-trough decline	-62.46%	-27.91%	-34.55%
Max Drawdown (1Y) Largest decline over 1 year	-11.83%	-4.45%	-7.38%
Max Drawdown (3Y) Largest decline over 3 years	-21.40%	-7.69%	-13.71%
Max Drawdown (5Y) Largest decline over 5 years	-39.79%	-26.34%	-13.45%
Max Drawdown (10Y) Largest decline over 10 years	-39.79%	-27.91%	-11.88%
Current Drawdown Current decline from peak	-4.02%	-15.33%	+11.31%
Average Drawdown Average peak-to-trough decline	-14.87%	-4.22%	-10.65%
Ulcer Index Depth and duration of drawdowns from previous peaks	3.03%	1.83%	+1.20%

Volatility

SMCWX vs. CWBFX - Volatility Comparison

American Funds SMALLCAP World Fund Class A (SMCWX) has a higher volatility of 5.62% compared to American Funds Capital World Bond Fund (CWBFX) at 1.26%. This indicates that SMCWX's price experiences larger fluctuations and is considered to be riskier than CWBFX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	SMCWX	CWBFX	Difference
Volatility (1M) Calculated over the trailing 1-month period	5.62%	1.26%	+4.36%
Volatility (6M) Calculated over the trailing 6-month period	14.45%	4.02%	+10.43%
Volatility (1Y) Calculated over the trailing 1-year period	17.16%	4.96%	+12.20%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	18.46%	6.59%	+11.87%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	17.90%	5.65%	+12.25%

SMCWX vs. CWBFX - Expense Ratio Comparison

SMCWX has a 1.02% expense ratio, which is higher than CWBFX's 0.95% expense ratio.

Dividends

SMCWX vs. CWBFX - Dividend Comparison

SMCWX's dividend yield for the trailing twelve months is around 4.27%, more than CWBFX's 3.82% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
CWBFX American Funds Capital World Bond Fund	3.82%	2.68%	3.01%	2.47%	1.99%	2.63%	3.18%	2.26%	1.87%	1.80%	2.05%	0.58%
SMCWX American Funds SMALLCAP World Fund Class A	4.27%	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 CWBFX in my portfolio?

SMCWX and CWBFX have a correlation of 0.51, 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 CWBFX?

SMCWX has higher volatility (5.62%) compared to CWBFX (1.26%). In terms of maximum drawdown, SMCWX dropped -62.46% vs CWBFX's -27.91%.

Which has better risk-adjusted returns?

SMCWX currently has the higher Sharpe Ratio (1.13 vs 0.07), 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.