MGBBX — MFS Global Bond Fund
Data updated: 2026-07-23
MGBBX — MFS Global Bond Fund. Intermediate Total / Aggregate Bond · $1.02B AUM · 1.69% expense ratio. Holdings, fees, performance and SEC filings.
MGBBX Fund Overview
MGBBX — MFS Global Bond Fund is a US mutual fund managed by Mfs Series Trust X, categorised as Intermediate Total / Aggregate Bond. ABC INVEST provides holdings, performance, costs, cashflows, risk data, prospectus documents and SEC filings, sourced from SEC filings.
- Type: US mutual fund
- Manager: Mfs Series Trust X
- Category: Intermediate Total / Aggregate Bond
- Assets under management: $1.02B
- 1-year return: 3.8%
- Ticker: MGBBX
- SEC CIK: 0000783740
- SEC series ID: S000028956
- Share class ID: C000088936
MGBBX Holdings
Top 10 holdings of MFS Global Bond Fund by percentage of net assets, from the fund's latest SEC N-PORT filing.
| Holding | % of net assets |
|---|---|
| United Kingdom of Great Britain and Northern Ireland | 3.42% |
| Republic of Italy | 2.38% |
| MFS Institutional Money Market Portfolio | 2.29% |
| United Kingdom of Great Britain and Northern Ireland | 2.10% |
| Federative Republic of Brazil | 1.81% |
| People's Republic of China | 1.79% |
| People's Republic of China | 1.78% |
| Republic of Korea | 1.62% |
| Canada | 1.60% |
| United States of America | 1.59% |
MGBBX Portfolio Allocation
Asset-class allocation of MFS Global Bond Fund by percentage of net assets, from the latest SEC N-PORT filing.
| Asset class | Allocation |
|---|---|
| Fixed Income | 84.1% |
| Securitized | 12.3% |
| Cash & Equivalents | 2.3% |
| Derivatives | 0.5% |
| Real Estate | 0.1% |
MGBBX Performance
Total returns for MGBBX (as of 2026-09-01), from SEC filings.
| Period | Total return |
|---|---|
| YTD | 0.3% |
| 1 year | 3.8% |
| 3 years (annualised) | 3.9% |
| 5 years (annualised) | 0.2% |
MGBBX Risk Information
Risk metrics for MGBBX, derived from monthly returns in SEC filings.
- 1-year volatility (annualised): 3.4%
MGBBX Costs and Fees
MGBBX costs about $169 per $10,000 invested per year in fund expenses.
- Net expense ratio: 1.69%
- Gross expense ratio: 1.70%
- Portfolio turnover: 133%
- Brokerage commissions: 1.21 bps of average net assets (SEC N-CEN)
MGBBX Cashflows
Over the 12 months to 2026-05, MFS Global Bond Fund had net inflows of $63.67M, from monthly SEC N-PORT filings.
| Month | Net flow |
|---|---|
| 2026-05 | $4.27M |
| 2026-04 | $1.57M |
| 2026-03 | −$13.76M |
| 2026-02 | $3.98M |
| 2026-01 | $5.18M |
| 2025-12 | $5.13M |
MGBBX Debt Constituents
Largest debt holdings of MFS Global Bond Fund by percentage of net assets, from the latest SEC N-PORT filing.
| Debt holding | % of net assets |
|---|---|
| United Kingdom of Great Britain and Northern Ireland | 3.42% |
| Republic of Italy | 2.38% |
| United Kingdom of Great Britain and Northern Ireland | 2.10% |
| Federative Republic of Brazil | 1.81% |
| People's Republic of China | 1.79% |
| People's Republic of China | 1.78% |
| Republic of Korea | 1.62% |
| Canada | 1.60% |
| United States of America | 1.59% |
| Republic of Korea | 1.42% |
MGBBX Prospectus and SEC Filings
Official MFS Global Bond Fund filings on SEC EDGAR — prospectus, portfolio holdings and annual reports.
- Prospectus (485BPOS) — filed 2026-03-27
- Prospectus (485BPOS) — filed 2025-03-27
- Prospectus (485BPOS) — filed 2024-03-27
- Portfolio holdings (N-PORT) — filed 2026-07-23
- Portfolio holdings (N-PORT) — filed 2026-04-22
- Portfolio holdings (N-PORT) — filed 2026-01-23
- Annual census (N-CEN) — filed 2026-02-12
- Annual census (N-CEN) — filed 2025-02-11
Related Funds
Other Intermediate Total / Aggregate Bond funds tracked on ABC INVEST:
Data Sources
ABC INVEST compiles this page from public filings made to the U.S. Securities and Exchange Commission (SEC) through EDGAR: portfolio holdings and monthly cashflows from Form N-PORT, expenses and returns from fund prospectuses (Form 485BPOS) and the SEC DERA Risk/Return Summary data sets, annual data from Form N-CEN, and shareholder reports from Form N-CSR.