New

Create, analyze, optimize your ETF portfolio. Start now →

Advertisement
Advertisement

MFS Active Core Plus Bond ETF

This ETF provides exposure to Mixed Ratings Aggregate Bonds

MFSB performance and flow charts

Last update 9/15/2026 at 1:30 PM
Live
Closed
Last price
$24.23
-$0.04 (-0.16%) Yesterday

Performance

-1.0-0.50.00.5%Aug 14Aug 21Aug 28Sep 4Sep 11

Flows

0 M10 M20 M30 M40 M
1 day price range
$24.23
$24.27
52 week price range
$24.24
$25.52
1W perf
-1.01%
YTD perf
-0.68%
YTD flows
+$427M
AuM
$569M
E/R
0.34%
TTM yield
4.7%
Find out how industry players manage ETF portfolios.  Discover our library of Model portfolios

Historic performance and flows

Data as of September 14, 2026
1M3MYTD1Y3Y5Y
Perf.-1.10%-1.66%-0.68%+0.01%
Flows+$39M+$133M+$427M+$503M--
Data as of September 14, 2026
Advertisement

Get all the metrics on this page, and more, through a reliable ETF data feed

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 holdings457
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 July 31, 2026

Diversification

27.06%

Total weight of top 15 holdings out of 457

Top 15 Holdings

USA, Bonds 4.625% 15nov2045, USD
8.86%
USA, Bonds 4.625% 15nov2055, USD
4.1%
USA, Notes 3.875% 31jul2030, USD (AB-2030)
4.06%
USA, Notes 4.125% 31oct2029, USD (AF-2029)
2.59%
USA, Bonds 4.625% 15nov2044, USD
0.96%
USA, Bonds 4.875% 15aug2045, USD
0.93%
USA, Bonds 4.5% 15nov2054, USD
0.92%
Boston Properties LP, 5.75% 15jan2035, USD
0.69%
Bank of America Corporation, 5.744% 12feb2036, USD (N)
0.64%
US01F0306864
0.59%
US12570XAQ51
0.57%
USA, Bonds 4.25% 15feb2054, USD
0.56%
Highwoods Realty, 5.35% 15jan2033, USD
0.54%
Boeing, 6.528% 1may2034, USD
0.53%
JP Morgan, 4.946% 22oct2035, USD
0.52%

Sectors

Sovereign
26.57%
Finance
20.22%
Industrials
8.04%
Other
45.17%

Countries

USA
57.02%
Other
42.98%

Maturity

10Y+
23.83%
7-10Y
19.76%
5-7Y
12.48%
0-5Y
11.79%
Other
32.14%

Credit rating

Other
100%
Advertisement

Trading data

Last sale
9/15/2026 at 1:30 PM
$24.23
Previous close
$24.27
Consolidated volume
09/14/2026
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+3.48%+3.32%
Max drawdown
-2.16%-2.56%
Max drawdown duration
77d197dN/AN/A
Time to recover
N/AN/AN/AN/A
Advertisement
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 September 14, 2026, MFSB manages $568.93 M, reflecting the total assets held in the fund.

How has MFSB performed recently?

As of September 14, 2026, MFSB delivered a return of -1.1% over the past month (1M performance), -1.66% over the past three months (3M), and -0.68% year-to-date (YTD).

What are the recent fund flows for MFSB?

As of September 14, 2026, MFSB has seen net flows of +$39M in the past month (1M flow) and +$427M year-to-date (YTD).

Does MFSB pay dividends?

As of September 14, 2026, MFSB has a trailing 12-month distribution yield of 4.7%.

How many holdings are in MFSB

As of July 31, 2026, MFSB holds 457 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 July 31, 2026, MFSB holds 457 securities, with 27.06% of its assets concentrated in its top 15 holdings.

What are the top holdings of MFSB?

As of July 31, 2026, MFSB holds a portfolio of 457 underlyings, with its largest positions including USA, Bonds 4.625% 15nov2045, USD, USA, Bonds 4.625% 15nov2055, USD and USA, Notes 3.875% 31jul2030, USD (AB-2030). 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 July 31, 2026, MFSB has its largest geographic exposures in USA.

What sectors or themes does MFSB focus on?

As of July 31, 2026, MFSB is primarily exposed to Sovereign, Finance and Industrials.

The ETF Institute® is now affiliated with ETF Central

The CETF certification is the only FINRA listed professional designation focused on ETFs.

ETF Institute
Advertisement
Advertisement
ETF U
Become a better investor with NYSE: The Home of ETFs
Visit the ETF U homepage
ETF Guides
Advertisement

Recent educational content

Tidal ETF Industry KPIs

ETF Trends

ETF Industry KPIs September 14, 2026

This week’s KPI data overview highlights key metrics and trends shaping the ETF landscape.

Tidal
By Tidal · September 15, 2026
Tidal ETF Industry KPIs

ETF Trends

ETF Industry KPIs September 8, 2026

This week’s KPI data overview highlights key metrics and trends shaping the ETF landscape.

Tidal
By Tidal · September 9, 2026
Tidal ETF Industry KPIs

ETF Trends

ETF Industry KPIs August 31, 2026

This week’s KPI data overview highlights key metrics and trends shaping the ETF landscape.

Tidal
By Tidal · September 1, 2026
Tidal ETF Industry KPIs

ETF Trends

ETF Industry KPIs August 24, 2026

This week’s KPI data overview highlights key metrics and trends shaping the ETF landscape.

Tidal
By Tidal · August 24, 2026

Browse all educational columns

Advertisement
ETF INVESTOR RESOURCES

Expert-Built ETF Portfolios, All in One Place

Don’t start from scratch. Discover ready-made ETF portfolios built by professionals to match different goals, timelines, and market views. Use them as inspiration or as a starting point for your own allocation.

Portfolio Builder