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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 4/2/2026, 1:30 PM UTC
LIVE
CLOSED
This fund is part ofUS Aggregate Bonds1M perf.-1.07%
Last price
$24.99
1M perf.
-1.42%
1M flows
+€132M
AuM
€330M
E/R
0.34%
Rating
Not rated
ESG Consensus®
MFSB
$24.99
Performance & flows
Segment for quartile rank
January 2, 2026 → April 1, 2026
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MFSB
$24.88
-0.01%
US Aggregate Bonds
-0.01%
Historic performance and flows
| 1M | 3M | 1Y | 3Y | 5Y | MTD | QTD | YTD | ||
|---|---|---|---|---|---|---|---|---|---|
| Perf. | -1.42%  | -0.01%  | +4.75%  | N/A | N/A | +0.08% | +0.08% | -0.01% | |
| 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
4/1/2026
$24.88
1D NAV change
+0.08%
Dividend policy
No. of holdings
232
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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Risk profile
Segment for quartile rank
Historical risk/return profile
| 3M | 1Y | 3Y | 5Y | |
|---|---|---|---|---|
| Returns | -0.01% | +4.75% | 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
More exposure metrics are available, exclusively in Trackinsight Enterprise
Exposure
Countries
USA
63.54%
Canada
1.42%
United Kingdom
1.12%
Australia
1.07%
Unavailable
27.76%
Other
5.09%
Sectors
Sovereign
10.66%
Banks
4.24%
Insurance and reinsurance
2.23%
Other sectors
2.15%
Pipelines
1.44%
Wholesale trade
1.25%
Power
1.12%
Oil and gas extraction and refining
1.11%
Unavailable
65.20%
Other
10.60%
Diversification
Total weight of top 15 holdings out of 232
Top 15 holdings
Data as of February 28, 2026
US912810UQ93
US91282CNN73
USA, Bonds 4.625% 15nov2044, USD
US912810UN62
USA, Bonds 4.5% 15nov2054, USD
US912810UP11
USA, Bonds 4.25% 15feb2054, USD
USA, Notes 4.125% 31oct2029, USD (AF-2029)
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US31418FE297
USA, Bonds 4.5% 15feb2044, USD
US01F0326334
US803014AC31
US912810UM89
US64832KAC99
Boeing, 6.528% 1may2034, USD
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More risk metrics are available, exclusively in Trackinsight Enterprise
Sustainability
Integrates ESG criteria
No
SDG
More sustainability metrics are available, exclusively in Trackinsight Enterprise
Issuer
MFS
MFS ID Card
Number of funds
9
Total AuM
€1.96B
Expense ratio range
0.24% - 0.59%
Average expense ratio
0.4233%
Top 5 funds by MFS
| AuM | ||
|---|---|---|
MFSI | MFS Active International ETF | €800M |
MFSV | MFS Active Value ETF | €341M |
MFSB | MFS Active Core Plus Bond ETF | €330M |
MFSG | MFS Active Growth ETF | €205M |
BRIE | MFS Blended Research Core Equity ETF | €138M |
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 €330M in assets as of April 1, 2026.
How has MFSB performed lately?
Based on data from April 1, 2026, MFSB returned -1.42% over the past month, -0.01% over the last three months and -0.01% year-to-date.
What are the latest inflows or outflows for MFSB?
As of April 1, 2026, MFSB recorded net flows of +€133M over the last month and +€193M year-to-date.
Does MFSB distribute dividends?
MFSB follows a distributing dividend policy, meaning it pays out income to investors. As of April 1, 2026, its 12-month trailing yield was 4.63%.
What are the main country or region exposures of MFSB?
As of February 28, 2026, MFSB has significant geographic allocations in USA, Canada and United Kingdom.
In which sector or theme does MFSB invest in?
As of February 28, 2026, MFSB focuses largely on Sovereign, Banks and Insurance and reinsurance.
How many securities does MFSB hold and how diversified is it?
As of February 28, 2026, MFSB holds 232 positions in its portfolio, with 25.81% of assets concentrated in its top 15 holdings.
What are the main positions in MFSB?
As of February 28, 2026, MFSB top three holdings include US912810UQ93, US91282CNN73 and USA, Bonds 4.625% 15nov2044, USD.
What is the base currency of MFSB?
The base currency of MFSB is USD.
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