MAMB vs. BNDP

Last updated Jun 4, 2026

MAMB (Monarch Ambassador Income ETF) and BNDP (Vanguard Core-Plus Bond Index ETF) are both Intermediate Core-Plus Bond funds - MAMB tracks the Monarch Ambassador Income Index while BNDP tracks the Bloomberg U.S. Universal Float Adjusted Index. Both are passively managed. Their correlation of 0.82 suggests significant overlap in exposure. MAMB charges 1.49%/yr vs 0.05%/yr for BNDP.

Performance

MAMB vs. BNDP - Performance Comparison

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

Returns By Period

In the year-to-date period, MAMB achieves a 2.01% return, which is significantly higher than BNDP's 0.34% return.

MAMB

• 1D: -0.26%
• 1M: 0.63%
• YTD: 2.01%
• 6M: 1.90%
• 1Y: 9.37%
• 3Y*: 5.37%
• 5Y*: 0.72%
• 10Y*: —

BNDP

• 1D: -0.08%
• 1M: 0.41%
• YTD: 0.34%
• 6M: —
• 1Y: —
• 3Y*: —
• 5Y*: —
• 10Y*: —

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

MAMB vs. BNDP - Yearly Performance Comparison

	2026 (YTD)	2025
MAMB Monarch Ambassador Income ETF	2.01%	0.10%
BNDP Vanguard Core-Plus Bond Index ETF	0.34%	0.10%

Correlation

The correlation between MAMB and BNDP 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 (All Time) Calculated using the full available price history since Dec 5, 2025	0.82

Return for Risk

MAMB vs. BNDP — Risk / Return Rank

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

MAMB

MAMB Risk / Return Rank: 48
MAMB Sharpe Ratio Rank: 48
MAMB Sortino Ratio Rank: 47
MAMB Omega Ratio Rank: 47
MAMB Calmar Ratio Rank: 53
MAMB Martin Ratio Rank: 46

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.

MAMB vs. BNDP - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Monarch Ambassador Income ETF (MAMB) and Vanguard Core-Plus Bond Index ETF (BNDP). 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.

	MAMB	BNDP	Difference
Sharpe ratio Return per unit of total volatility	1.66	—	—
Sortino ratio Return per unit of downside risk	2.33	—	—
Omega ratio Gain probability vs. loss probability	1.29	—	—
Calmar ratio Return relative to maximum drawdown	2.65	—	—
Martin ratio Return relative to average drawdown	7.49	—	—
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

Sharpe Ratios by Period

	MAMB	BNDP	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	1.66	—	—
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.10	—	—
Sharpe Ratio (All Time) Calculated using the full available price history	0.16	0.25	-0.08

Drawdowns

MAMB vs. BNDP - Drawdown Comparison

The maximum MAMB drawdown since its inception was -19.33%, which is greater than BNDP's maximum drawdown of -2.60%. Use the drawdown chart below to compare losses from any high point for MAMB and BNDP.

Drawdown Indicators

	MAMB	BNDP	Difference
Max Drawdown Largest peak-to-trough decline	-19.33%	-2.60%	-16.73%
Max Drawdown (1Y) Largest decline over 1 year	-3.55%	—	—
Max Drawdown (3Y) Largest decline over 3 years	-7.38%	—	—
Max Drawdown (5Y) Largest decline over 5 years	-19.33%	—	—
Current Drawdown Current decline from peak	-1.65%	-1.31%	-0.34%
Average Drawdown Average peak-to-trough decline	-7.50%	-0.86%	-6.64%
Ulcer Index Depth and duration of drawdowns from previous peaks	1.25%	—	—

Volatility

Volatility by Period

	MAMB	BNDP	Difference
Volatility (1M) Calculated over the trailing 1-month period	1.72%	—	—
Volatility (6M) Calculated over the trailing 6-month period	4.21%	—	—
Volatility (1Y) Calculated over the trailing 1-year period	5.67%	3.63%	+2.04%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	6.99%	3.63%	+3.36%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	6.91%	3.63%	+3.28%

MAMB vs. BNDP - Expense Ratio Comparison

MAMB has a 1.49% expense ratio, which is higher than BNDP's 0.05% expense ratio.

Dividends

MAMB vs. BNDP - Dividend Comparison

MAMB's dividend yield for the trailing twelve months is around 2.44%, more than BNDP's 2.08% yield.

Position	TTM	2025	2024	2023	2022	2021
BNDP Vanguard Core-Plus Bond Index ETF	2.08%	0.24%	0.00%	0.00%	0.00%	0.00%
MAMB Monarch Ambassador Income ETF	2.44%	2.47%	2.11%	1.73%	0.92%	0.56%

Frequently Asked Questions

Can I hold both MAMB and BNDP in my portfolio?

MAMB and BNDP 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 ETF is better, MAMB or BNDP?

On fees, BNDP is cheaper at 0.05% per year. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF is cheaper, MAMB or BNDP?

BNDP is cheaper with a 0.05% expense ratio, compared with 1.49% for MAMB.

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

MAMB has the higher dividend yield at 2.44%, compared with 2.08% for BNDP.

What is the main difference between MAMB and BNDP?

MAMB tracks Monarch Ambassador Income Index, while BNDP tracks Bloomberg U.S. Universal Float Adjusted Index. They also come from different issuers: Monarch and Vanguard. Their fees differ too: 1.49% for MAMB and 0.05% for BNDP.