FundWatcher
MEDFX
MFS Emerging Markets Debt Fund
MFS Series Trust X

Portfolio concentration

As of January 31, 2026 · N-PORT
Holdings
481
Top-10 weight
11.64%
Effective holdings ?
219
Crowding ?
54.3

Holdings

As of January 31, 2026 · N-PORT
#SecurityTickerSharesValue% of fund
1 MFS Institutional Money Market Portfolio, Class A — 299,643,766 $299.70M 3.95%
2 ARGENTINA — 110,945,000 $80.21M 1.06%
3 ARGENTINA — 103,189,000 $79.82M 1.05%
4 ARGENTINA — 95,770,000 $77.05M 1.02%
5 REPUBLIC OF GHANA SR UNSECURED 144A 07/35 VAR PT85 77,712,203 $70.86M 0.93%
6 US TREASURY N/B — 58,838,000 $59.21M 0.78%
7 DOMINICAN REPUBLIC INTERNATIONAL BOND REG S 4.875% 09-23-32 — 58,082,000 $55.54M 0.73%
8 US TREASURY N/B — 59,492,000 $55.26M 0.73%
9 Republic of Paraguay — 59,818,000 $55.14M 0.73%
10 REPUBLIC OF ECUADOR 6.900000% 07/31/2035 ECUA 59,445,308 $54.15M 0.71%
11 UKRAINE GOVT UKRAIN 63,195,500 $50.37M 0.66%
12 Costa Rica Government International Bond — 42,771,000 $47.52M 0.63%
13 TURKIYE REP OF TURKEY 41,390,000 $41.03M 0.54%
14 SOUTH AFRICA REPUBLIC OF 7.3% 04/20/2052 SOAF 41,418,000 $40.83M 0.54%
15 REPUBLIC OF ECUADOR 5.000000% 07/31/2040 — 48,715,000 $40.19M 0.53%
16 The Democratic Socialist Republic of Sri Lanka YV24 42,992,898 $39.42M 0.52%
17 Petroleos Mexicanos — 43,565,000 $39.19M 0.52%
18 Republic of Angola — 43,926,000 $38.02M 0.50%
19 Urzad Rady Ministrow DS1034 131,354,000 $37.04M 0.49%
20 Eagle Funding LuxCo S.a.r.l. — 35,701,000 $36.27M 0.48%
21 REPUBLIC OF COLOMBIA REGD 7.75000000 COLOM 34,617,000 $36.16M 0.48%
22 CHILE — 32,457,000 $34.23M 0.45%
23 PETRONAS CAP LTD PETMK 33,044,000 $34.22M 0.45%
24 TURKIYE REP OF — 41,153,000 $33.13M 0.44%
25 Egypt Government International Bonds — 33,686,000 $32.62M 0.43%
26 State of Kuwait KUWIB 32,653,000 $32.19M 0.42%
27 ROMANIA REGD 144A P/P 6.37500000 ROMANI 30,488,000 $31.74M 0.42%
28 PETRONAS CAP LTD — 30,439,000 $31.38M 0.41%
29 SOUTH AFRICA REPUBLIC OF 7.25% 12/11/2055 144A YZ25 31,720,000 $30.80M 0.41%
30 Romanian Government International Bond — 29,380,000 $30.74M 0.41%
31 REP OF NIGERIA — 30,286,000 $30.60M 0.40%
32 REPUBLIC OF COLOMBIA SR UNSECURED 11/35 8 COLOM 28,325,000 $30.23M 0.40%
33 Ma'aden Sukuk Ltd 5.25 01/29/2036 MAADEN 30,091,000 $30.12M 0.40%
34 SOUTH AFRICA REPUBLIC OF 6.125% 12/11/2037 144A SOAF 30,728,000 $29.81M 0.39%
35 Republic of Colombia COLOM 30,076,000 $29.79M 0.39%
36 UNITED MEXICAN — 29,873,000 $29.75M 0.39%
37 BANCO INTERNACIONAL DEL PERU SAA INTERBANK 144A LIFE SR UNSEC 4.8% 07-15-31 — 29,854,000 $29.64M 0.39%
38 Republic of Cote d'Ivoire — 27,232,000 $29.38M 0.39%
39 Republic of Cote d'Ivoire IVYCST 27,063,000 $29.20M 0.39%
40 State of Kuwait KUWIB 29,398,000 $29.19M 0.39%
41 Guatemala Government Bond — 27,849,000 $29.01M 0.38%
42 BANGKOK BANK PCL REG S SUB 3.733% 09-25-34/29 — 30,312,000 $28.92M 0.38%
43 Navoiy Kon-Metallurgiya Kombinati Aksiyadorlik Jamiyati — 27,351,000 $28.80M 0.38%
44 Sultanate of Oman Government Bond — 26,614,000 $28.71M 0.38%
45 UNITED MEXICAN — 26,494,000 $28.01M 0.37%
46 Ecuador Government International Bonds — 27,358,000 $27.97M 0.37%
47 Sandor-Palota REPHUN 27,398,000 $27.66M 0.36%
48 Sultanate of Oman Government Bond — 24,684,000 $27.56M 0.36%
49 Ecuador Government International Bonds — 27,028,000 $27.30M 0.36%
50 BANGKOK BANK PCL/HONG KONG — 26,963,000 $26.98M 0.36%
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