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MFSB ETF · MFS Active Core Plus Bond ETF
The MFSB Exchange Traded Fund (ETF) is provided by MFS. This fund is actively managed; it does not track an index. This share class generates a stream of income by distributing dividends.
Last update Yesterday at 1:30 PM UTC
LIVE
CLOSED
This fund is part ofUS Aggregate Bonds1M perf.+0.24%
Last price
$25.09
1M perf.
+0.37%
1M flows
+€81M
AuM
€254M
E/R
0.34%
Rating
Not rated
ESG Consensus®
MFSB
$25.09
Performance & flows
Segment for quartile rank
December 9, 2025 → March 9, 2026
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MFSB
$25.24
+1.53%
US Aggregate Bonds
+1.34%
Historic performance and flows
| 1M | 3M | 1Y | 3Y | 5Y | MTD | QTD | YTD | ||
|---|---|---|---|---|---|---|---|---|---|
| Perf. | +0.37%  | +1.53% | +6.20% | N/A | N/A | -0.75% | +1.07% | +1.07% | |
| Flows |
Key fund info
Segment for quartile rank
This ETF's jurisdiction country is not in your region (Europe and Middle East) ·
Main characteristics
More details
NAV
3/9/2026
$25.24
1D NAV change
+0.20%
Dividend policy
No. of holdings
218
Inception date
12/4/2024
Jurisdiction
United States
Distribution
United States
Legal structure
Open-end Investment Company
Base currency
USD
Dividend distribution
Trailing 12-month distr. yield
Distribution frequency
Last distribution
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Classification
Investment strategy
The fund’s investment objective is to seek total return with an emphasis on current income, but also considering capital appreciation.
Tax optimisation
PEA
France
UK Reporting Status
United Kingdom
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Enterprise
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Segment for quartile rank
Historical risk/return profile
| 3M | 1Y | 3Y | 5Y | |
|---|---|---|---|---|
| Returns | +1.53% | +6.20% | N/A | N/A |
| Volatility | ||||
| Perf./Volatility | ||||
| Max drawdown |
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Synthetic Risk and Reward Indicator (SRRI)
UCITS
N/A
PRIIPS
N/A
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Enterprise
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Countries
USA
63.40%
Canada
1.48%
Australia
1.10%
United Kingdom
1.01%
Unavailable
27.84%
Other
5.17%
Sectors
Sovereign
10.94%
Banks
4.66%
Other sectors
2.59%
Insurance and reinsurance
1.98%
Pipelines
1.45%
Oil and gas extraction and refining
1.11%
Unavailable
64.96%
Other
12.31%
Diversification
Total weight of top 15 holdings out of 218
Top 15 holdings
Data as of January 31, 2026
US91282CNN73
US912810UQ93
USA, Bonds 4.625% 15nov2044, USD
US912810UN62
USA, Bonds 4.5% 15nov2054, USD
US912810UM89
USA, Notes 4.125% 31oct2029, USD (AF-2029)
US912810UP11
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US31418FE297
USA, Bonds 4.5% 15feb2044, USD
US64832KAC99
USA, Bonds 4.25% 15feb2054, USD
US803014AC31
FR SD8213, 3% 1may2052, USD (ABS)
US3132DWDC47
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Enterprise
Trackinsight Enterprise helps professional and institutional ETF investors tackle operational, regulatory, and analytical challenges at every stage of the investment process.
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Integrates ESG criteria
No
SDG
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Enterprise
Trackinsight Enterprise helps professional and institutional ETF investors tackle operational, regulatory, and analytical challenges at every stage of the investment process.
Learn more about Trackinsight EnterpriseIssuer
MFS
MFS ID Card
Number of funds
9
Total AuM
€1.74B
Expense ratio range
0.24% - 0.59%
Average expense ratio
0.4233%
Top 5 funds by MFS
| AuM | ||
|---|---|---|
MFSI | MFS Active International ETF | €739M |
MFSV | MFS Active Value ETF | €297M |
MFSB | MFS Active Core Plus Bond ETF | €254M |
MFSG | MFS Active Growth ETF | €202M |
BRIE | MFS Blended Research Core Equity ETF | €116M |
Frequently asked questions about MFSB
What does MFS Active Core Plus Bond ETF, MFSB, invest in?
MFSB is a Active ETF. This ETF provides exposure to Mixed Ratings Aggregate Bonds.
What is the Total Expense ratio (TER) of MFSB?
MFSB carries a total expense ratio (TER) of 0.34%, indicating the annual cost for holding the fund.
When was MFSB launched?
MFSB was introduced to the market on December 4, 2024. It trades on United States
Who is the ETF issuer of MFSB?
MFS Active Core Plus Bond ETF, MFSB, is provided by MFS. Learn more about MFS here.
What is the current assets under management (AUM) of MFSB?
MFSB oversees €254M in assets as of March 9, 2026.
How has MFSB performed lately?
Based on data from March 9, 2026, MFSB returned 0.37% over the past month, 1.53% over the last three months and 1.07% year-to-date.
What are the latest inflows or outflows for MFSB?
As of March 9, 2026, MFSB recorded net flows of +€82M over the last month and +€116M year-to-date.
Does MFSB distribute dividends?
MFSB follows a distributing dividend policy, meaning it pays out income to investors. As of March 9, 2026, its 12-month trailing yield was 4.59%.
What are the main country or region exposures of MFSB?
As of January 31, 2026, MFSB has significant geographic allocations in USA, Canada and Australia.
In which sector or theme does MFSB invest in?
As of January 31, 2026, MFSB focuses largely on Sovereign, Banks and Other sectors.
How many securities does MFSB hold and how diversified is it?
As of January 31, 2026, MFSB holds 218 positions in its portfolio, with 27.29% of assets concentrated in its top 15 holdings.
What are the main positions in MFSB?
As of January 31, 2026, MFSB top three holdings include US91282CNN73, US912810UQ93 and USA, Bonds 4.625% 15nov2044, USD.
What is the base currency of MFSB?
The base currency of MFSB is USD.
About Trackinsight
Since our founding in 2016, we have been at the forefront of the industry, delivering accessible, comprehensive, and reliable tools to support the evolving needs of investors.
Over the past decade, Trackinsight has expanded its operations across six countries, serving thousands of professional investors. We’ve consistently innovated to provide cutting-edge solutions that meet the changing demands of the ETF market.
In 2024, Kepler Cheuvreux, a leading independent European financial services firm, acquired a majority stake in Trackinsight, becoming the company's principal shareholder.
This strategic partnership solidifies Trackinsight's position as a premier provider of ETF selection and analysis tools, while strengthening Kepler Cheuvreux’s commitment to becoming a leading player in the ETF sector.
Together, we are committed to offering advanced services that empower professional investors, advisors, institutions, and issuers. This new step enables us to deliver even more comprehensive and innovative technological solutions, driving ETF investing to new heights.
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