MFSB vs. BNDP

Last updated Jun 4, 2026

MFSB (MFS Active Core Plus Bond ETF) and BNDP (Vanguard Core-Plus Bond Index ETF) are both Intermediate Core-Plus Bond funds. MFSB is actively managed, while BNDP is passively managed. With a 0.96 correlation, they move nearly in lockstep. MFSB charges 0.34%/yr vs 0.05%/yr for BNDP.

Performance

MFSB vs. BNDP - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in MFS Active Core Plus Bond ETF (MFSB) 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, MFSB achieves a 0.56% return, which is significantly higher than BNDP's 0.34% return.

MFSB

• 1D: -0.26%
• 1M: 0.38%
• YTD: 0.56%
• 6M: 0.61%
• 1Y: 6.16%
• 3Y*: —
• 5Y*: —
• 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)

MFSB vs. BNDP - Yearly Performance Comparison

	2026 (YTD)	2025
MFSB MFS Active Core Plus Bond ETF	0.56%	0.20%
BNDP Vanguard Core-Plus Bond Index ETF	0.34%	0.10%

Correlation

The correlation between MFSB and BNDP is 0.96 - these two move nearly in lockstep. At this level, holding both provides almost no diversification benefit. If you already own one, adding the other does little to reduce portfolio risk.

	Correlation
Correlation (All Time) Calculated using the full available price history since Dec 5, 2025	0.96

Return for Risk

MFSB vs. BNDP — Risk / Return Rank

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

MFSB

MFSB Risk / Return Rank: 49
MFSB Sharpe Ratio Rank: 50
MFSB Sortino Ratio Rank: 53
MFSB Omega Ratio Rank: 49
MFSB Calmar Ratio Rank: 47
MFSB Martin Ratio Rank: 44

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.

MFSB vs. BNDP - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for MFS Active Core Plus Bond ETF (MFSB) 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.

	MFSB	BNDP	Difference
Sharpe ratio: Return per unit of total volatility	1.70	—	—
Sortino ratio: Return per unit of downside risk	2.51	—	—
Omega ratio: Gain probability vs. loss probability	1.30	—	—
Calmar ratio: Return relative to maximum drawdown	2.28	—	—
Martin ratio: Return relative to average drawdown	7.17	—	—
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

	MFSB	BNDP	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	1.70	—	—
Sharpe Ratio (All Time) Calculated using the full available price history	1.01	0.25	+0.77

Drawdowns

MFSB vs. BNDP - Drawdown Comparison

The maximum MFSB drawdown since its inception was -3.19%, which is greater than BNDP's maximum drawdown of -2.60%. Use the drawdown chart below to compare losses from any high point for MFSB and BNDP.

Drawdown Indicators

	MFSB	BNDP	Difference
Max Drawdown Largest peak-to-trough decline	-3.19%	-2.60%	-0.59%
Max Drawdown (1Y) Largest decline over 1 year	-2.71%	—	—
Current Drawdown Current decline from peak	-1.26%	-1.31%	+0.05%
Average Drawdown Average peak-to-trough decline	-0.82%	-0.86%	+0.04%
Ulcer Index Depth and duration of drawdowns from previous peaks	0.86%	—	—

Volatility

Volatility by Period

	MFSB	BNDP	Difference
Volatility (1M) Calculated over the trailing 1-month period	1.33%	—	—
Volatility (6M) Calculated over the trailing 6-month period	2.68%	—	—
Volatility (1Y) Calculated over the trailing 1-year period	3.64%	3.63%	+0.01%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	4.23%	3.63%	+0.60%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	4.23%	3.63%	+0.60%

MFSB vs. BNDP - Expense Ratio Comparison

MFSB has a 0.34% expense ratio, which is higher than BNDP's 0.05% expense ratio.

Dividends

MFSB vs. BNDP - Dividend Comparison

MFSB's dividend yield for the trailing twelve months is around 4.59%, more than BNDP's 2.08% yield.

Position	TTM	2025	2024
BNDP Vanguard Core-Plus Bond Index ETF	2.08%	0.24%	0.00%
MFSB MFS Active Core Plus Bond ETF	4.59%	4.58%	0.37%

Frequently Asked Questions

Can I hold both MFSB and BNDP in my portfolio?

With a correlation of 0.96, MFSB and BNDP move almost identically. Holding both adds very little diversification - you're essentially doubling your position in the same market segment. Choosing one is usually more capital-efficient.

Which ETF is better, MFSB 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, MFSB or BNDP?

BNDP is cheaper with a 0.05% expense ratio, compared with 0.34% for MFSB.

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

MFSB has the higher dividend yield at 4.59%, compared with 2.08% for BNDP.

What is the main difference between MFSB and BNDP?

They also come from different issuers: MFS and Vanguard. Their fees differ too: 0.34% for MFSB and 0.05% for BNDP.