MEDBX Holdings — MFS Emerging Markets Debt Fund
Data updated: 2026-10-13
MEDBX holds 504 securities. The top 10 make up 12.6% of net assets, led by MFS Institutional Money Market Portfolio (4.42%) and Argentina Republic Government International Bonds (1.35%). Government Bonds (56.5%) and Corporate Bonds (32.6%) are the largest sectors, and 4.7% of the portfolio is in Hungary. Debt holdings: 431 positions, 94.0% of assets.
Holdings cover 99.84% of net asset value (98.43% of total assets; remainder is cash and receivables). As of July 31, 2026 · N-PORT.
MEDBX Portfolio Holdings
504 holdings of MFS Emerging Markets Debt Fund by percentage of net assets, from the fund's SEC N-PORT filing as of July 31, 2026. The 100 largest are listed below; the interactive table on this page lists all 504.
| Holding | Ticker | Sector | % of net assets | Value (USD) |
|---|---|---|---|---|
| MFS Institutional Money Market Portfolio | — | Funds & ETFs | 4.42% | $332.50M |
| Argentina Republic Government International Bonds | — | Government Bonds | 1.35% | $101.38M |
| Argentina Republic Government International Bonds | — | Government Bonds | 1.08% | $81.10M |
| Ecuador Government International Bonds | — | Government Bonds | 0.96% | $71.99M |
| Argentina Republic Government International Bonds | — | Government Bonds | 0.95% | $71.58M |
| Dominican Republic International Bond | — | Unknown | 0.89% | $66.94M |
| Colombia Government International Bonds | — | Government Bonds | 0.82% | $62.01M |
| Dominican Republic International Bond | — | Government Bonds | 0.73% | $54.92M |
| Paraguay Government International Bonds | — | Unknown | 0.70% | $52.49M |
| Ecuador Government International Bonds | — | Government Bonds | 0.69% | $52.07M |
| Ukraine Government International Bond | — | Government Bonds | 0.68% | $51.05M |
| Venezuela Government International Bond | — | Government Bonds | 0.64% | $48.06M |
| Sri Lanka Government International Bond | — | Government Bonds | 0.62% | $46.50M |
| Costa Rica Government International Bond | — | Government Bonds | 0.62% | $46.28M |
| Turkiye Government International Bonds | — | Government Bonds | 0.59% | $44.23M |
| Sri Lanka Government International Bond | — | Government Bonds | 0.55% | $41.38M |
| Ukraine Government International Bond | — | Government Bonds | 0.54% | $40.61M |
| Republic of South Africa Government International Bonds | — | Government Bonds | 0.53% | $40.16M |
| Mexico Government International Bond | — | Government Bonds | 0.53% | $39.62M |
| Petroleos Mexicanos | — | Corporate Bonds | 0.53% | $39.58M |
| Turkiye Government International Bonds | — | Government Bonds | 0.52% | $39.17M |
| Republic of South Africa Government International Bond | — | Government Bonds | 0.48% | $36.20M |
| Angola Government International Bonds | — | Government Bonds | 0.48% | $35.92M |
| Eagle Funding Luxco Sarl | — | Government Bonds | 0.47% | $35.64M |
| Nigeria Government International Bonds | — | Government Bonds | 0.44% | $33.43M |
| Republic of Poland Government International Bond | — | Government Bonds | 0.44% | $33.37M |
| Petronas Capital Ltd | — | Corporate Bonds | 0.43% | $32.35M |
| Hungary Government International Bond | — | Government Bonds | 0.41% | $30.81M |
| Egypt Government International Bonds | — | Government Bonds | 0.41% | $30.55M |
| Egypt Government International Bond | — | Government Bonds | 0.41% | $30.51M |
| Romanian Government International Bond | — | Government Bonds | 0.41% | $30.50M |
| Petronas Capital Ltd | — | Corporate Bonds | 0.41% | $30.48M |
| Republic of Poland Government International Bond | — | Government Bonds | 0.40% | $30.40M |
| Republic of South Africa Government International Bond | — | Government Bonds | 0.40% | $29.96M |
| Ivory Coast Government International Bonds | — | Government Bonds | 0.40% | $29.84M |
| Hungary Government International Bonds | — | Government Bonds | 0.40% | $29.72M |
| Guatemala Government Bond | — | Government Bonds | 0.39% | $29.51M |
| Republic of South Africa Government International Bonds | — | Government Bonds | 0.39% | $29.25M |
| Ivory Coast Government International Bond | — | Government Bonds | 0.39% | $29.12M |
| Ecuador Government International Bond | — | Government Bonds | 0.39% | $29.00M |
| Romanian Government International Bond | — | Government Bonds | 0.38% | $28.75M |
| Republic of South Africa Government Bond | — | Government Bonds | 0.38% | $28.72M |
| Ma'aden Sukuk Ltd | — | Corporate Bonds | 0.38% | $28.28M |
| Navoi Mining & Metallurgical Co | — | Corporate Bonds | 0.37% | $28.08M |
| Nigeria OMO Bill | — | Government Bonds | 0.37% | $27.71M |
| Angolan Government International Bond | — | Government Bonds | 0.37% | $27.64M |
| Hungary Government International Bond | — | Government Bonds | 0.36% | $27.32M |
| Paraguay Government International Bond | — | Government Bonds | 0.36% | $27.05M |
| Oman Government International Bonds | — | Government Bonds | 0.36% | $26.97M |
| Colombian TES | — | Government Bonds | 0.36% | $26.91M |
| Samarco Mineracao SA | — | Unknown | 0.36% | $26.77M |
| Serbia International Bond | — | Government Bonds | 0.35% | $26.67M |
| Ecuador Government International Bond | — | Government Bonds | 0.35% | $26.57M |
| Bangkok Bank PCL/Hong Kong | — | Corporate Bonds | 0.35% | $26.42M |
| Green Palm Bidco Sarl | — | Corporate Bonds | 0.35% | $26.25M |
| Bank Mandiri Persero Tbk PT | — | Corporate Bonds | 0.35% | $26.15M |
| Serbia International Bond | — | Government Bonds | 0.35% | $26.14M |
| Baiterek National Investment Holding JSC | — | Government Bonds | 0.35% | $25.98M |
| Panama Government International Bonds | — | Government Bonds | 0.34% | $25.71M |
| Colombia Government International Bond | — | Government Bonds | 0.34% | $25.69M |
| Hungary Government Bond | — | Government Bonds | 0.34% | $25.58M |
| Ivory Coast Government International Bond | — | Government Bonds | 0.34% | $25.36M |
| Romanian Government International Bond | — | Government Bonds | 0.33% | $25.00M |
| Sonangol Finance Ltd | — | Corporate Bonds | 0.33% | $24.93M |
| Colombian TES | — | Government Bonds | 0.33% | $24.65M |
| Republic of South Africa Government International Bond | — | Government Bonds | 0.33% | $24.46M |
| Honduras Government International Bond | — | Government Bonds | 0.32% | $24.27M |
| Bulgarian Energy Holding EAD | — | Corporate Bonds | 0.32% | $24.02M |
| Export-Import Bank of India | — | Government Bonds | 0.32% | $23.87M |
| SAN Miguel Industrias Pet SA / NG PET R&P Latin America SA | — | Corporate Bonds | 0.31% | $23.64M |
| Guatemala Government Bond | — | Government Bonds | 0.31% | $23.61M |
| Hungary Government International Bond | — | Government Bonds | 0.31% | $23.57M |
| Bank Gospodarstwa Krajowego | — | Government Bonds | 0.31% | $23.18M |
| Energuate Trust 2 0 | — | Corporate Bonds | 0.31% | $23.08M |
| Colombian TES | — | Government Bonds | 0.30% | $22.83M |
| Angolan Government International Bond | — | Government Bonds | 0.30% | $22.72M |
| Nigeria OMO Bill | — | Government Bonds | 0.30% | $22.71M |
| Hungary Government International Bond | — | Government Bonds | 0.30% | $22.64M |
| Guatemala Government Bond | — | Unknown | 0.30% | $22.55M |
| Gaci First Investment Co | — | Corporate Bonds | 0.30% | $22.53M |
| Hungary Government International Bond | — | Government Bonds | 0.30% | $22.48M |
| Philippine Government International Bond | — | Government Bonds | 0.30% | $22.47M |
| Hungary Government International Bond | — | Government Bonds | 0.30% | $22.46M |
| Peru Government Bond | — | Government Bonds | 0.30% | $22.32M |
| Barbados Government International Bond | — | Government Bonds | 0.30% | $22.21M |
| Ocp SA | — | Corporate Bonds | 0.30% | $22.20M |
| Nigeria OMO Bill | — | Government Bonds | 0.29% | $22.17M |
| Prosus NV | — | Corporate Bonds | 0.29% | $22.07M |
| Turkiye Government International Bonds | — | Government Bonds | 0.29% | $22.07M |
| Avilease Capital Ltd | — | Corporate Bonds | 0.29% | $22.04M |
| Maxam Prill Sarl | — | Corporate Bonds | 0.29% | $22.02M |
| Ivory Coast Government International Bond | — | Government Bonds | 0.29% | $21.99M |
| Perusahaan Perseroan Persero PT Perusahaan Listrik Negara | — | Corporate Bonds | 0.29% | $21.93M |
| Dominican Republic International Bond | — | Government Bonds | 0.29% | $21.75M |
| Chile Government International Bond | — | Government Bonds | 0.29% | $21.74M |
| Oman Government International Bonds | — | Government Bonds | 0.29% | $21.60M |
| Saudi Government International Bond | — | Government Bonds | 0.29% | $21.58M |
| Fondo MIVIVIENDA SA | — | Government Bonds | 0.29% | $21.56M |
| Dangote Fertiliser Ltd | — | Corporate Bonds | 0.29% | $21.52M |
| BBVA Mexico SA Institucion De Banca Multiple Grupo Financiero BBVA Mexico/TX | — | Corporate Bonds | 0.29% | $21.53M |
MEDBX Sector Allocation
MFS Emerging Markets Debt Fund holdings grouped by sector, by share of the portfolio's market value.
| Sector | Weight | Holdings |
|---|---|---|
| Government Bonds | 56.5% | 216 |
| Corporate Bonds | 32.6% | 167 |
| Funds & ETFs | 4.4% | 1 |
| Consumer Discretionary | 0.2% | 2 |
| Cash & Currency | 0.0% | 3 |
| Financials | -0.0% | 2 |
| Unknown | 6.3% | 113 |
MEDBX Country Allocation
Where MFS Emerging Markets Debt Fund's holdings are domiciled, by percentage of net assets (largest 15).
| Country | % of net assets |
|---|---|
| Hungary | 4.7% |
| Mexico | 4.6% |
| United States | 4.5% |
| Argentina | 4.2% |
| Cayman Islands | 4.0% |
| Chile | 3.7% |
| South Africa | 3.5% |
| India | 3.3% |
| Colombia | 3.2% |
| Türkiye | 3.1% |
| Romania | 2.7% |
| Luxembourg | 2.5% |
| Poland | 2.5% |
| Ecuador | 2.5% |
| Peru | 2.5% |
MEDBX Portfolio Allocation
Asset-class allocation of MFS Emerging Markets Debt Fund by percentage of net assets, from the latest SEC N-PORT filing.
| Asset class | Allocation |
|---|---|
| Fixed Income | 95.5% |
| Equity | 4.4% |
MEDBX Debt Constituents
Largest debt holdings of MFS Emerging Markets Debt Fund by percentage of net assets, from the latest SEC N-PORT filing.
| Debt holding | % of net assets |
|---|---|
| Argentina Republic Government International Bonds | 1.35% |
| Argentina Republic Government International Bonds | 1.08% |
| Ecuador Government International Bonds | 0.96% |
| Argentina Republic Government International Bonds | 0.95% |
| Dominican Republic | 0.89% |
| Colombia Government International Bonds | 0.82% |
| Dominican Republic | 0.73% |
| Paraguay Government International Bonds | 0.70% |
| Ecuador Government International Bonds | 0.69% |
| Ukraine Government | 0.68% |
For information only. Not investment advice: figures are as reported in SEC filings and may contain errors or be out of date. Past performance does not guarantee future results.