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MFS Active Core Plus Bond ETF

This ETF provides exposure to Mixed Ratings Aggregate Bonds

MFSB performance and flow charts

Last update 4/24/2026 at 1:30 PM
Live
Closed
Last price
$25.14
+$0.04 (+0.14%) today

Performance

-0.50.00.51.0%Mar 23Mar 30Apr 7Apr 14Apr 21

Flows

0 M20 M40 M60 M80 M100 M120 M
1 day price range
$25.07
$25.16
52 week price range
$24.40
$25.52
1W perf
-0.00%
YTD perf
+0.83%
YTD flows
+$248M
AuM
$407M
E/R
0.34%
TTM yield
4.6%
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Historic performance and flows

Data as of April 22, 2026
1M3MYTD1Y3Y5Y
Perf.+1.09%+0.55%+0.83%+7.45%
Flows+$108M+$215M+$248M+$365M--
Data as of April 22, 2026
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Daily, global ETF data for advanced analysis or integration into apps (API), from our partner Trackinsight.

Characteristics

This fund is actively managed; it does not track an index. This share class generates a stream of income by distributing dividends.

Management strategyActive
StrategyLong Only
ProviderMFS
N° of holdings245
Dividend policyDistributing
Trailing 12m distribution yield
Join for free
Inception dateDecember 4, 2024
ESGNo
TrackinsightTrackinsight

More data and info about MFSB on Trackinsight

Exposure

Data as of March 31, 2026

Diversification

28.89%

Total weight of top 15 holdings out of 245

Top 15 Holdings

US912810UQ93
7.51%
USA, Notes 4.125% 31oct2029, USD (AF-2029)
5.03%
US91282CNN73
3.81%
US912810UP11
3.48%
USA, Bonds 4.625% 15nov2044, USD
1.38%
US912810UN62
1.33%
USA, Bonds 4.5% 15nov2054, USD
1.32%
USA, Bonds 4.25% 15feb2054, USD
0.81%
US01F0526495
0.7%
Boston Properties LP, 5.75% 15jan2035, USD
0.63%
US64832CAC73
0.62%
US89681LAC63
0.58%
Boeing, 6.528% 1may2034, USD
0.58%
US31418FE297
0.56%
US62954WAV72
0.55%

Sectors

Sovereign
11.48%
Other
88.52%

Countries

USA
62.87%
Other
37.13%

Maturity

5-10Y
15.18%
0-5Y
7.89%
Other
76.93%

Credit rating

Other
100%
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Trading data

Last sale
4/24/2026 at 1:30 PM
$25.14
Previous close
$25.11
Consolidated volume
04/23/2026
Join for free
Average volume
30 days
Join for free
Average discount or premium
30 days
Join for free
Average Bid/Ask spread
30 days
Join for free

Volatility and drawdown

3M1Y3Y5Y
Volatility+3.85%+3.53%
Max drawdown
-2.56%-2.56%
Max drawdown duration
52d52dN/AN/A
Time to recover
N/AN/AN/AN/A
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Frequently asked questions about MFSB

What type of ETF is MFSB?

MFSB is a Active ETF that provides exposure to Fixed Income assets. It is managed by MFS.

What does MFSB invest in?

This ETF provides exposure to Mixed Ratings Aggregate Bonds. It is part of the segment: US Aggregate Bonds.

What is the expense ratio of MFSB?

The total expense ratio (TER) of MFSB is 0.34%, representing the annual fee charged by the fund manager.

When was MFSB launched?

MFSB was launched on December 4, 2024, marking its entry into the ETF market.

Who is the issuer of MFSB?

MFSB is issued by MFS.

What is the AUM of MFSB?

As of April 22, 2026, MFSB manages $407.43 M, reflecting the total assets held in the fund.

How has MFSB performed recently?

As of April 22, 2026, MFSB delivered a return of 1.09% over the past month (1M performance), 0.55% over the past three months (3M), and 0.83% year-to-date (YTD).

What are the recent fund flows for MFSB?

As of April 22, 2026, MFSB has seen net flows of +$108M in the past month (1M flow) and +$248M year-to-date (YTD).

Does MFSB pay dividends?

As of April 22, 2026, MFSB has a trailing 12-month distribution yield of 4.6%.

How many holdings are in MFSB

As of March 31, 2026, MFSB holds 245 securities in its portfolio. This level of diversification can influence the fund’s risk profile and exposure to individual assets.

How diversified is MFSB?

As of March 31, 2026, MFSB holds 245 securities, with 28.89% of its assets concentrated in its top 15 holdings.

What are the top holdings of MFSB?

As of March 31, 2026, MFSB holds a portfolio of 245 underlyings, with its largest positions including US912810UQ93, USA, Notes 4.125% 31oct2029, USD (AF-2029) and US91282CNN73. These top holdings play a significant role in shaping the fund’s performance and exposure.

What countries or regions does MFSB invest in?

As of March 31, 2026, MFSB has its largest geographic exposures in USA.

What sectors or themes does MFSB focus on?

As of March 31, 2026, MFSB is primarily exposed to Sovereign.

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