ETF · holdings as filed 2026-05-31
What's inside MGBOX? MFS Global Opportunistic Bond Fund
Holdings 774 positions in the fund
Expense ratio 0.61% net, per year
Fund size $1B total net assets Top 20 holdings Rank Logo Ticker / Name Weight 1 BOND
United Kingdom Gilt 4% · Oct 2031
3.44% 2 BOND
Buoni Poliennali Del Tes 1.45% · Mar 2036
2.39% 3 ?
— MFS Institutional Money Market Portfolio
2.31% 4 BOND
United Kingdom Gilt 4.5% · Mar 2035
2.11% 5 BOND
Nota Do Tesouro Nacional 10% · Jan 2035
1.83% 6 BOND
China Government Bond 2.88% · Feb 2033
1.80% 7 BOND
China Government Bond 1.43% · Jan 2030
1.79% 8 BOND
Korea Treasury Bond 2.5% · Sep 2030
1.63% 9 BOND
Canadian Government 2.25% · Feb 2028
1.61% 10 BOND
US Treasury Note 3.875% · May 2043
1.60% 11 BOND
Korea Treasury Bond 1.5% · Dec 2030
1.43% 12 BOND
Republic Of South Africa 8.75% · Feb 2048
1.07% 13 BOND
France (govt Of) 2.7% · Feb 2031
1.04% 14 BOND
China Government Bond 3.13% · Nov 2029
1.02% 15 BOND
Korea Treasury Bond 1.875% · Jun 2029
0.95% 16 BOND
Bonos De Tesoreria 6.85% · Aug 2035
0.87% 17 BOND
Buoni Poliennali Del Tes 4.1% · Apr 2046
0.85% 18 BOND
France (govt Of) 3.25% · May 2055
0.66% 19 BOND
Hellenic Republic 3.375% · Jun 2036
0.61% 20 BOND
Canadian Government 1.5% · Dec 2031
0.60%
Show more (20 more)
Sectors tap a row to see its top 10 holdings
› 1 Bonds & Fixed Income 93.6% › › › Top holdings — Bonds & Fixed Income
Your 10 largest positions in this sector
1
BOND
United Kingdom Gilt 4% · Oct 2031
3.44% 2
BOND
Buoni Poliennali Del Tes 1.45% · Mar 2036
2.39% 3
BOND
United Kingdom Gilt 4.5% · Mar 2035
2.11% 4
BOND
Nota Do Tesouro Nacional 10% · Jan 2035
1.83% 5
BOND
China Government Bond 2.88% · Feb 2033
1.80% 6
BOND
China Government Bond 1.43% · Jan 2030
1.79% 7
BOND
Korea Treasury Bond 2.5% · Sep 2030
1.63% 8
BOND
Canadian Government 2.25% · Feb 2028
1.61% 9
BOND
US Treasury Note 3.875% · May 2043
1.60% 10
BOND
Korea Treasury Bond 1.5% · Dec 2030
1.43% Geography tap a row to see its top 10 holdings
Top holdings — United States
Your 10 largest positions in this country
1
BOND
US Treasury Note 3.875% · May 2043
1.60% 2
BOND
US Treasury Note 4.25% · May 2035
0.53% 4
BOND
Freddie Mac mortgage pool #FR SD8213
0.35% 5
BOND
Republica Orient Uruguay 8% · Oct 2035
0.32% 6
BOND
Tcw 2020-1a Br3
0.31% 7
BOND
Saudi International Bond 4.875% · Jan 2036
0.31% 8
BOND
Clean Harbors 6.375% · Feb 2031
0.30% 10
BOND
Pg&e 5.25% · Jul 2030
0.28% 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 2026-05-31); expense ratio from SEC prospectus (risk/return) filings. Fund holdings are disclosed quarterly and may reflect a 60-day reporting delay.