CGCP vs. MAMB

Last updated Jun 24, 2026

CGCP (Capital Group Core Plus Income ETF) and MAMB (Monarch Ambassador Income ETF) are both Intermediate Core-Plus Bond funds. CGCP is actively managed, while MAMB is passively managed. Over the past 3 years, CGCP returned 5.20%/yr vs 5.24%/yr for MAMB. Their correlation of 0.89 suggests significant overlap in exposure. CGCP charges 0.34%/yr vs 1.49%/yr for MAMB.

Performance

CGCP vs. MAMB - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Capital Group Core Plus Income ETF (CGCP) and Monarch Ambassador Income ETF (MAMB). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, CGCP achieves a 0.56% return, which is significantly lower than MAMB's 1.59% return.

CGCP

• 1D: 0.18%
• 1M: 0.63%
• YTD: 0.56%
• 6M: 0.68%
• 1Y: 4.89%
• 3Y*: 5.20%
• 5Y*: —
• 10Y*: —

MAMB

• 1D: -0.11%
• 1M: 0.21%
• YTD: 1.59%
• 6M: 1.04%
• 1Y: 7.54%
• 3Y*: 5.24%
• 5Y*: 0.66%
• 10Y*: —

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

CGCP vs. MAMB - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022
CGCP Capital Group Core Plus Income ETF	0.56%	7.35%	2.95%	7.17%	-9.68%
MAMB Monarch Ambassador Income ETF	1.59%	10.69%	1.32%	4.90%	-9.83%

Correlation

The correlation between CGCP and MAMB is 0.79, 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	0.79
Correlation (3Y) Calculated over the trailing 3-year period	0.87
Correlation (All Time) Calculated using the full available price history since Feb 24, 2022	0.89

The correlation between CGCP and MAMB has been stable across timeframes, ranging from 0.79 to 0.89 - a consistent structural relationship.

Return for Risk

CGCP vs. MAMB — Risk / Return Rank

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

CGCP

CGCP Risk / Return Rank: 39
CGCP Sharpe Ratio Rank: 40
CGCP Sortino Ratio Rank: 40
CGCP Omega Ratio Rank: 37
CGCP Calmar Ratio Rank: 39
CGCP Martin Ratio Rank: 40

MAMB

MAMB Risk / Return Rank: 40
MAMB Sharpe Ratio Rank: 40
MAMB Sortino Ratio Rank: 38
MAMB Omega Ratio Rank: 38
MAMB Calmar Ratio Rank: 45
MAMB Martin Ratio Rank: 39

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.

CGCP vs. MAMB - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Capital Group Core Plus Income ETF (CGCP) and Monarch Ambassador Income ETF (MAMB). 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.

	CGCP	MAMB	Difference
Sharpe ratio: Return per unit of total volatility	1.34	1.32	+0.02
Sortino ratio: Return per unit of downside risk	1.99	1.86	+0.13
Omega ratio: Gain probability vs. loss probability	1.24	1.24	+0.01
Calmar ratio: Return relative to maximum drawdown	1.90	2.13	-0.23
Martin ratio: Return relative to average drawdown	5.99	5.67	+0.32

CGCP vs. MAMB - Sharpe Ratio Comparison

The current CGCP Sharpe Ratio is 1.34, which is comparable to the MAMB Sharpe Ratio of 1.32. The chart below compares the historical Sharpe Ratios of CGCP and MAMB, 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

CGCP vs. MAMB - Drawdown Comparison

The maximum CGCP drawdown since its inception was -15.06%, smaller than the maximum MAMB drawdown of -19.33%. Use the drawdown chart below to compare losses from any high point for CGCP and MAMB.

Drawdown Indicators

	CGCP	MAMB	Difference
Max Drawdown Largest peak-to-trough decline	-15.06%	-19.33%	+4.27%
Max Drawdown (1Y) Largest decline over 1 year	-2.59%	-3.55%	+0.96%
Max Drawdown (3Y) Largest decline over 3 years	-5.37%	-7.38%	+2.01%
Max Drawdown (5Y) Largest decline over 5 years	—	-19.33%	—
Current Drawdown Current decline from peak	-0.94%	-2.06%	+1.12%
Average Drawdown Average peak-to-trough decline	-4.88%	-7.44%	+2.56%
Ulcer Index Depth and duration of drawdowns from previous peaks	0.82%	1.33%	-0.51%

Volatility

CGCP vs. MAMB - Volatility Comparison

The current volatility for Capital Group Core Plus Income ETF (CGCP) is 1.12%, while Monarch Ambassador Income ETF (MAMB) has a volatility of 1.71%. This indicates that CGCP experiences smaller price fluctuations and is considered to be less risky than MAMB based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	CGCP	MAMB	Difference
Volatility (1M) Calculated over the trailing 1-month period	1.12%	1.71%	-0.59%
Volatility (6M) Calculated over the trailing 6-month period	2.81%	4.42%	-1.61%
Volatility (1Y) Calculated over the trailing 1-year period	3.67%	5.73%	-2.06%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	6.33%	7.02%	-0.69%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	6.33%	6.91%	-0.58%

CGCP vs. MAMB - Expense Ratio Comparison

CGCP has a 0.34% expense ratio, which is lower than MAMB's 1.49% expense ratio.

Dividends

CGCP vs. MAMB - Dividend Comparison

CGCP's dividend yield for the trailing twelve months is around 5.15%, more than MAMB's 2.45% yield.

Position	TTM	2025	2024	2023	2022	2021
CGCP Capital Group Core Plus Income ETF	5.15%	5.10%	5.17%	4.98%	2.96%	0.00%
MAMB Monarch Ambassador Income ETF	2.45%	2.47%	2.11%	1.73%	0.92%	0.56%

Frequently Asked Questions

Can I hold both CGCP and MAMB in my portfolio?

CGCP and MAMB have a correlation of 0.79, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, CGCP or MAMB?

MAMB has higher volatility (1.71%) compared to CGCP (1.12%). In terms of maximum drawdown, CGCP dropped -15.06% vs MAMB's -19.33%.

Which ETF is better, CGCP or MAMB?

On 3-year performance, MAMB leads with 5.24% vs 5.20% for CGCP. On fees, CGCP is cheaper at 0.34% per year. On volatility, CGCP has been the lower-risk option at 1.12%. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF has performed better, CGCP or MAMB?

Over the 3-year period, MAMB has performed better with a 5.24% return vs 5.20%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

Which ETF is cheaper, CGCP or MAMB?

CGCP is cheaper with a 0.34% expense ratio, compared with 1.49% for MAMB.

Which ETF pays a higher dividend yield, CGCP or MAMB?

CGCP has the higher dividend yield at 5.15%, compared with 2.45% for MAMB.

What is the main difference between CGCP and MAMB?

They also come from different issuers: Capital Group and Monarch. Their fees differ too: 0.34% for CGCP and 1.49% for MAMB.

Which has better risk-adjusted returns?

CGCP currently has the higher Sharpe Ratio (1.34 vs 1.32), 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.