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MFSB · MFS Active Core Plus Bond ETF

Bond fundActively managed0.34% fee$424mSince Dec 5, 2024
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MFSB is actively managed and returned −1.6% over the past year.

−1.6%
Total return, 1 year
0.34%
Expense ratio
407
Holdings
−4.0%
Below its high
WindowTotal returnS&P 500Gap to S&P 500Gap to Nasdaq-100
3M Jul 2 – Oct 2, 2026−3.3%+3.6%−6.9 pts−8.6 pts
6M Apr 2 – Oct 2, 2026−2.4%+17.9%−20.4 pts−30.9 pts
1Y Oct 2, 2025 – Oct 2, 2026−1.6%+16.2%−17.8 pts−25.9 pts
Since listing Dec 5, 2024 – Oct 2, 2026+3.4%+29.8%−26.3 pts−41.6 pts

MFSB over each window to Oct 2, 2026. Every figure is an ETFIQ calculation. Source: ETFIQ.

Head to head
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In plain words

MFSB is actively managed and tracks no index. Over the year to Oct 2, 2026 it returned −1.6% with distributions reinvested, against +16.2% for the S&P 500 and +24.3% for the Nasdaq-100. The prospectus expense ratio is 0.34% a year. It sat 4.0% below its high of Feb 27, 2026 on Oct 2, 2026.
What it tracksNo index, actively managed
Fund typeBond fund
Category (ETFIQ)Bonds · Corporate bond
Expense ratio (485BPOS XBRL, Jun 25, 2026)0.34%
Price$23.81
Listed sinceDec 5, 2024
Net assets (SEC filing, whole fund, as filed for May 31, 2026)$424m
Below its high (ETFIQ)−4.0%
Holdings407
Top ten weight24.3%
Holdings as of (SEC N-PORT)May 31, 2026
ETFIQ links to the documents behind every figure. It is not affiliated with any issuer, and a link is not an endorsement.

Questions people ask about MFSB

How has MFSB performed?
Over the year to Oct 2, 2026, MFSB returned −1.6% with distributions reinvested, against +16.2% for the S&P 500. Over three years the figure is not published.
What does MFSB cost?
The prospectus expense ratio is 0.34% a year.
How far is MFSB below its high?
4.0% below its high of Feb 27, 2026, measured on the reinvested series to Oct 2, 2026.
Sources and dates
Prices, MFSB and S&P 500Tiingo end-of-day · Oct 2, 2026
Fee, 0.34%Prospectus filing with the expense ratio (SEC) ↗
Net assets, $424mSEC filing, whole fund · May 31, 2026
SourceHoldings filing (SEC Form N-PORT) ↗

ETFIQ links to the documents behind every figure. It is not affiliated with any issuer, and a link is not an endorsement.

ETFIQ covers core, leveraged and inverse, buffer, thematic, option-income, alternatives and spot crypto ETFs. This fund is here because the other funds here are measured against it and portfolios hold it. ETFIQ is an independent publisher and makes no recommendations. Standards and sources

How these figures are computed →Standards and sources →Open data →
Cite this page

ETFIQ, MFSB, core fund, data as of Oct 2, 2026. https://etfiq.com/funds/mfsb

Free to use with attribution; the underlying files are at Open data.