Fund holdings · MFS Active Core Plus Bond ETF

MFSB holdings: 407 positions

MFSB held 407 positions as of May 31, 2026. United States Treasury is the largest at 7.75%; the top 10 are 24.1% of the fund.

How much of the fund each position is · one bar per position, largest first
United States Treasury 7.75%407 positionsIvory Coast Government International Bonds 0.33%
24.1%
top 10 together
7.75%
largest position
400
positions under 1%

The largest 100 of 407 positions

100 of 100 · click a column to sort
MFSB’s 407 positions by weight, from the holdings filed for May 31, 2026. A weight is a share of net assets. The 100 largest are listed; the CSV has all 407. Source: Form N-PORT filed with the SEC.
#HoldingTickerWeight ↓
1United States Treasury7.75%
2United States TreasuryT3.84%
3United States Treasury3.49%
4United States Treasury3.22%
5United States TreasuryT1.23%
6United States TreasuryT1.19%
7United States TreasuryT1.18%
8Umbs, Tba0.78%
9United States Treasury0.72%
10New Residential Mortgage Loan TrustNRZT0.65%
11Umbs, Tba0.63%
12Boston Properties LPBXP0.61%
13Highwoods Realty Limited Partnership0.59%
14Starwood Commercial Mortgage Trust0.59%
15Elmwood CLO VIII Ltd0.59%
16Bain Capital Credit CLO, Limited0.59%
17LoanCore 2018-CRE1 Issuer, Ltd.0.59%
18MF10.58%
19BX TrustBX0.56%
20Morgan Stanley0.56%
21The Boeing CompanyBA0.55%
22Triton Container International Ltd.0.55%
23Jefferies Financial Group, Inc.0.55%
24Onslow Bay Financial LLC0.55%
25HSBC Holdings plc0.53%
26JPMORGAN CHASE and COJPM0.53%
27Santos Finance Ltd0.52%
28LoanCore 2018-CRE1 Issuer, Ltd.0.51%
29Energy Transfer LP0.50%
30NTT Finance Corp0.50%
31Vornado Realty LPVNO0.49%
32Fannie Mae0.49%
33Citadel Securities Globa0.49%
34Horseshoe Fund Trst I0.49%
35Brixmor Operating Part0.49%
36Citigroup, Inc.C0.49%
37Booz Allen Hamilton, Inc.0.48%
38Arbor Realty Commercial Real Estate Notes0.48%
39TPG Real Estate Finance0.47%
40BSPRT Issuer, Ltd.0.47%
41Wind River CLO Ltd0.47%
42Highbridge Loan Management Ltd0.47%
43Targa Resources Corp.0.47%
44BX Trust0.47%
45Salesforce, Inc.CRM0.46%
46Bank of America Corp.0.45%
47CBRE Services, Inc.0.45%
48Goldman Sachs Group Inc/TheGS0.45%
49Umbs, Tba0.44%
50Rogers Communications in0.44%
51UBS Group AG0.44%
52Avolon Holdings Fndg Ltd0.43%
53Plains All American Pipeline LP / PAA Finance Corp0.43%
54Freddie Mac0.43%
55LPL Holdings, Inc.0.43%
56United States Treasury0.42%
57Japan Tobacco Inc0.42%
58JH North America Holdings Inc.JHXAU0.42%
59Dick's Sporting Goods0.42%
60ACORE Issuer, LLC0.41%
61Wells Fargo & Company0.41%
62MF10.41%
63Brown & Brown Inc0.40%
64Ferguson Enterprises, Inc.0.40%
65The Charles Schwab CorporationSCHW0.40%
66Autonation Inc0.40%
67Ashtead Capital Inc0.39%
68Corebridge Financial Inc0.39%
69Global Payments Inc0.39%
70First Industrial LP0.38%
71ENEL Finance International N.V.0.38%
72Freddie Mac0.38%
73Fairfax Financial Holdings Ltd0.38%
74Capital One Financial Co0.38%
75Sammons Financial Group0.37%
76Arrow Electronics, Inc.0.37%
77JBS NV/USA Foods/Food CoJBS0.37%
78Beach Acquisition Bidco LLC0.36%
79XPLR Infrastructure Operating Partners LP0.36%
80Jane Street Group LLCJANEST0.36%
81Arbor Realty Commercial Real Estate Notes0.35%
82Venture Global LNG IncVENLNG0.35%
83ARES CLO Ltd0.35%
84Dryden Senior Loan Fund0.35%
85Alliant Hold / Co-Issuer0.35%
86Quikrete Holdings IncQUIKHO0.35%
87SIX Flags Ent/Six FlagFUN0.35%
88Snap IncSNAP0.34%
89Post Holdings Inc0.34%
90Performance Food Group IncPFGC0.34%
91Bombardier IncBBDBCN0.34%
92United States TreasuryT0.34%
93HUB International Ltd.HBGCN0.34%
94Freddie Mac0.34%
95Deutsche Bank Ny0.34%
96MF10.34%
97MF10.33%
98Onslow Bay Financial LLC0.33%
99Nomura Holdings Inc0.33%
100Ivory Coast Government International Bonds0.33%
Cash and other net assets0.90%
As of May 31, 2026. Source: Form N-PORT filed with the SEC. The CSV lists all 407.

The book

Positions407
Listed on this page100 largest
Holdings as of (SEC N-PORT)May 31, 2026
Top 10 together24.1%
Cash and other net assets0.90%

By country

United States76.5%
Cayman Islands8.8%
Canada1.6%
Japan1.6%
Australia1.5%
United Kingdom1.2%
Other7.8%

Share of the fund, positions only, as the fund’s SEC filing states them.

By asset type

Bonds65.8%
Mortgage-backed and asset-backed33.3%

Share of the fund, positions only, as the fund’s SEC filing states them.

What this list is

How the list is built

Each weight is the share of net assets the fund’s SEC filing gives, largest first. Cash and other net assets are in their own row and are not a position. A negative weight is a short or an offsetting contract. Where a source leaves out a ticker, ETFIQ fills it from the same security in another fund’s book; names are set in title case where the source used capitals. How books are read.

Weights are as the source states them, largest first.

Where these figures came from

ETFIQ links to the documents behind every figure; a link is not an endorsement. ETFIQ is an independent publisher and makes no recommendations; every figure is calculated from published data. Standards and sources →

Cite this pageCitation, APA and Markdown

ETFIQ, Holdings of MFSB, data as of May 31, 2026. https://etfiq.com/funds/mfsb/holdings/

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