MFSB vs. MFSG

Last updated Jun 23, 2026

MFSB (MFS Active Core Plus Bond ETF) and MFSG (MFS Active Growth ETF) are both exchange-traded funds - MFSB is a Intermediate Core-Plus Bond fund actively managed by MFS, while MFSG is a Large Cap Growth Equities fund actively managed by MFS. Both are actively managed. Over the past year, MFSB returned 5.22% vs 20.82% for MFSG. At a 0.21 correlation, their price movements are largely independent. MFSB charges 0.34%/yr vs 0.49%/yr for MFSG.

Performance

MFSB vs. MFSG - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in MFS Active Core Plus Bond ETF (MFSB) and MFS Active Growth ETF (MFSG). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, MFSB achieves a 0.84% return, which is significantly lower than MFSG's 6.80% return.

MFSB

• 1D: -0.24%
• 1M: 0.91%
• YTD: 0.84%
• 6M: 1.07%
• 1Y: 5.22%
• 3Y*: —
• 5Y*: —
• 10Y*: —

MFSG

• 1D: -1.37%
• 1M: 0.70%
• YTD: 6.80%
• 6M: 6.76%
• 1Y: 20.82%
• 3Y*: —
• 5Y*: —
• 10Y*: —

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

MFSB vs. MFSG - Yearly Performance Comparison

	2026 (YTD)	2025	2024
MFSB MFS Active Core Plus Bond ETF	0.84%	7.40%	-1.28%
MFSG MFS Active Growth ETF	6.80%	14.51%	-2.99%

Correlation

The correlation between MFSB and MFSG is 0.29, which is low. Their price movements are largely independent, making them effective diversification partners.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.29
Correlation (All Time) Calculated using the full available price history since Dec 5, 2024	0.21

Return for Risk

MFSB vs. MFSG — Risk / Return Rank

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

MFSB

MFSB Risk / Return Rank: 41
MFSB Sharpe Ratio Rank: 43
MFSB Sortino Ratio Rank: 44
MFSB Omega Ratio Rank: 40
MFSB Calmar Ratio Rank: 40
MFSB Martin Ratio Rank: 39

MFSG

MFSG Risk / Return Rank: 32
MFSG Sharpe Ratio Rank: 36
MFSG Sortino Ratio Rank: 34
MFSG Omega Ratio Rank: 34
MFSG Calmar Ratio Rank: 27
MFSG Martin Ratio Rank: 32

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. MFSG - Risk-Adjusted Trends Comparison

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

	MFSB	MFSG	Difference
Sharpe ratio: Return per unit of total volatility	1.46	1.23	+0.23
Sortino ratio: Return per unit of downside risk	2.16	1.74	+0.42
Omega ratio: Gain probability vs. loss probability	1.25	1.22	+0.03
Calmar ratio: Return relative to maximum drawdown	1.94	1.30	+0.64
Martin ratio: Return relative to average drawdown	5.86	4.46	+1.40

MFSB vs. MFSG - Sharpe Ratio Comparison

The current MFSB Sharpe Ratio is 1.46, which is comparable to the MFSG Sharpe Ratio of 1.23. The chart below compares the historical Sharpe Ratios of MFSB and MFSG, 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

MFSB vs. MFSG - Drawdown Comparison

The maximum MFSB drawdown since its inception was -3.19%, smaller than the maximum MFSG drawdown of -23.24%. Use the drawdown chart below to compare losses from any high point for MFSB and MFSG.

Drawdown Indicators

	MFSB	MFSG	Difference
Max Drawdown Largest peak-to-trough decline	-3.19%	-23.24%	+20.05%
Max Drawdown (1Y) Largest decline over 1 year	-2.71%	-16.15%	+13.44%
Current Drawdown Current decline from peak	-0.98%	-1.69%	+0.71%
Average Drawdown Average peak-to-trough decline	-0.83%	-4.60%	+3.77%
Ulcer Index Depth and duration of drawdowns from previous peaks	0.89%	4.68%	-3.79%

Volatility

MFSB vs. MFSG - Volatility Comparison

The current volatility for MFS Active Core Plus Bond ETF (MFSB) is 1.11%, while MFS Active Growth ETF (MFSG) has a volatility of 6.70%. This indicates that MFSB experiences smaller price fluctuations and is considered to be less risky than MFSG based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	MFSB	MFSG	Difference
Volatility (1M) Calculated over the trailing 1-month period	1.11%	6.70%	-5.59%
Volatility (6M) Calculated over the trailing 6-month period	2.78%	13.64%	-10.86%
Volatility (1Y) Calculated over the trailing 1-year period	3.59%	17.05%	-13.46%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	4.23%	21.93%	-17.70%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	4.23%	21.93%	-17.70%

MFSB vs. MFSG - Expense Ratio Comparison

MFSB has a 0.34% expense ratio, which is lower than MFSG's 0.49% expense ratio.

Dividends

MFSB vs. MFSG - Dividend Comparison

MFSB's dividend yield for the trailing twelve months is around 4.57%, more than MFSG's 0.07% yield.

Position	TTM	2025	2024
MFSB MFS Active Core Plus Bond ETF	4.57%	4.58%	0.37%
MFSG MFS Active Growth ETF	0.07%	0.08%	0.00%

Frequently Asked Questions

Can I hold both MFSB and MFSG in my portfolio?

MFSB and MFSG have a correlation of 0.29, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, MFSB or MFSG?

MFSG has higher volatility (6.70%) compared to MFSB (1.11%). In terms of maximum drawdown, MFSB dropped -3.19% vs MFSG's -23.24%.

Which ETF is better, MFSB or MFSG?

On 1-year performance, MFSG leads with 20.82% vs 5.22% for MFSB. On fees, MFSB is cheaper at 0.34% per year. On volatility, MFSB has been the lower-risk option at 1.11%. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF has performed better, MFSB or MFSG?

Over the 1-year period, MFSG has performed better with a 20.82% return vs 5.22%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

Which ETF is cheaper, MFSB or MFSG?

MFSB is cheaper with a 0.34% expense ratio, compared with 0.49% for MFSG.

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

MFSB has the higher dividend yield at 4.57%, compared with 0.07% for MFSG.

What is the main difference between MFSB and MFSG?

MFSB is categorized as Intermediate Core-Plus Bond, while MFSG is Large Cap Growth Equities. Their fees differ too: 0.34% for MFSB and 0.49% for MFSG.

Which has better risk-adjusted returns?

MFSB currently has the higher Sharpe Ratio (1.46 vs 1.23), 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.