ETF · holdings as filed 2026-04-30
What's inside MBDIX? MFS Corporate Bond Fund
Holdings 429 positions in the fund
Expense ratio 0.51% net, per year
Fund size $4B total net assets Top 20 holdings Rank Logo Ticker / Name Weight 1 ?
— MFS Institutional Money Market Portfolio
1.78% 2 BOND
UBS Group (floating) 3.126% · Aug 2030
0.78% 3 BOND
Jpmorgan Chase & (floating) 2.545% · Nov 2032
0.76% 4 BOND
Boeing 5.805% · May 2050
0.75% 5 BOND
Charles Schwab (floating) 4.914% · Nov 2036
0.62% 6 BOND
Govt Of Bermuda 5% · Jul 2032
0.59% 7 BOND
Morgan Stanley (floating) 5.073% · Jan 2037
0.58% 8 BOND
Sumitomo Mitsui Finl Grp 1.71% · Jan 2031
0.58% 9 BOND
UBS Group (floating) 5.58% · May 2036
0.54% 10 BOND
Caixabank (floating) 6.84% · Sep 2034
0.54% 11 BOND
American Homes 4 Rent 5.25% · Mar 2035
0.51% 12 BOND
Aib Group (floating) 6.608% · Sep 2029
0.51% 13 BOND
Spire 4.6% · Sep 2031
0.50% 14 BOND
Nxp Bv/Nxp Fdg/Nxp USA 5.25% · Aug 2035
0.50% 15 BOND
Mars 5% · Mar 2032
0.46% 16 BOND
Bacardi Ltd / Martini Bv 5.4% · Jun 2033
0.46% 17 BOND
Element Fleet Management 6.319% · Dec 2028
0.46% 18 BOND
Bank Hapoalim 4.722% · Jul 2029
0.46% 19 BOND
Jpmorgan Chase & (floating) 4.946% · Oct 2035
0.45% 20 BOND
National Australia Bank (floating) 3.347% · Jan 2037
0.45%
Show more (20 more)
Sectors tap a row to see its top 10 holdings
› 1 Bonds & Fixed Income 95.0% › › Top holdings — Bonds & Fixed Income
Your 10 largest positions in this sector
1
BOND
UBS Group (floating) 3.126% · Aug 2030
0.78% 2
BOND
Jpmorgan Chase & (floating) 2.545% · Nov 2032
0.76% 3
BOND
Boeing 5.805% · May 2050
0.75% 4
BOND
Charles Schwab (floating) 4.914% · Nov 2036
0.62% 5
BOND
Govt Of Bermuda 5% · Jul 2032
0.59% 6
BOND
Morgan Stanley (floating) 5.073% · Jan 2037
0.58% 7
BOND
Sumitomo Mitsui Finl Grp 1.71% · Jan 2031
0.58% 8
BOND
UBS Group (floating) 5.58% · May 2036
0.54% 9
BOND
Caixabank (floating) 6.84% · Sep 2034
0.54% 10
BOND
American Homes 4 Rent 5.25% · Mar 2035
0.51% Geography tap a row to see its top 10 holdings
Top holdings — United States
Your 10 largest positions in this country
1
BOND
UBS Group (floating) 3.126% · Aug 2030
0.78% 2
BOND
Jpmorgan Chase & (floating) 2.545% · Nov 2032
0.76% 3
BOND
Boeing 5.805% · May 2050
0.75% 4
BOND
Charles Schwab (floating) 4.914% · Nov 2036
0.62% 5
BOND
Govt Of Bermuda 5% · Jul 2032
0.59% 6
BOND
Morgan Stanley (floating) 5.073% · Jan 2037
0.58% 7
BOND
Sumitomo Mitsui Finl Grp 1.71% · Jan 2031
0.58% 8
BOND
UBS Group (floating) 5.58% · May 2036
0.54% 9
BOND
Caixabank (floating) 6.84% · Sep 2034
0.54% 10
BOND
American Homes 4 Rent 5.25% · Mar 2035
0.51% Geography reflects each issuer's registered business address per SEC EDGAR filings where available, falling back to the exchange or listing where no SEC filing exists — not necessarily where a company's stock is primarily listed (e.g. TSMC is classified as Taiwan even though its ADR trades on the NYSE).
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Unwrap your portfolio → Data source: official SEC Form N-PORT filings (as of 2026-04-30); expense ratio from SEC prospectus (risk/return) filings. Fund holdings are disclosed quarterly and may reflect a 60-day reporting delay.