BNDP vs. MAMB

Last updated Jun 4, 2026

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

Performance

BNDP vs. MAMB - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Vanguard Core-Plus Bond Index ETF (BNDP) 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, BNDP achieves a 0.34% return, which is significantly lower than MAMB's 2.01% return.

BNDP

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

MAMB

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

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

BNDP vs. MAMB - Yearly Performance Comparison

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

Correlation

The correlation between BNDP and MAMB 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

BNDP vs. MAMB — 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.

BNDP vs. MAMB - Risk-Adjusted Trends Comparison

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

Risk / return metrics aren't available yet — we need at least 12 months of trading data to calculate them.

Sharpe Ratios by Period

	BNDP	MAMB	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	0.25	0.16	+0.08

Drawdowns

BNDP vs. MAMB - Drawdown Comparison

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

Drawdown Indicators

	BNDP	MAMB	Difference
Max Drawdown Largest peak-to-trough decline	-2.60%	-19.33%	+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	-1.31%	-1.65%	+0.34%
Average Drawdown Average peak-to-trough decline	-0.86%	-7.50%	+6.64%
Ulcer Index Depth and duration of drawdowns from previous peaks	—	1.25%	—

Volatility

Volatility by Period

	BNDP	MAMB	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	3.63%	5.67%	-2.04%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	3.63%	6.99%	-3.36%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	3.63%	6.91%	-3.28%

BNDP vs. MAMB - Expense Ratio Comparison

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

Dividends

BNDP vs. MAMB - Dividend Comparison

BNDP's dividend yield for the trailing twelve months is around 2.08%, less than MAMB's 2.44% 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 BNDP and MAMB in my portfolio?

BNDP and MAMB 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, BNDP or MAMB?

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, BNDP or MAMB?

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

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

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

What is the main difference between BNDP and MAMB?

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