MPMSX — MFS Mississippi Municipal Bond Fund
Data updated: 2026-08-25
MPMSX — MFS Mississippi Municipal Bond Fund. Long Municipal - National Bond · $62.25M AUM · 0.60% expense ratio. Holdings, fees, performance and SEC filings.
MPMSX Fund Overview
MPMSX — MFS Mississippi Municipal Bond Fund is a US mutual fund managed by Mfs Municipal Series Trust, categorised as Long Municipal - National 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 Municipal Series Trust
- Category: Long Municipal - National Bond
- Assets under management: $62.25M
- 1-year return: 8.0%
- Ticker: MPMSX
- SEC CIK: 0000751656
- SEC series ID: S000002535
- Share class ID: C000194252
MPMSX Holdings
Top 10 holdings of MFS Mississippi Municipal Bond Fund by percentage of net assets, from the fund's latest SEC N-PORT filing.
| Holding | % of net assets |
|---|---|
| Jackson County Utility Authority | 3.21% |
| Mississippi Home Corp. | 2.81% |
| Mississippi Development Bank | 2.23% |
| Medical Center Educational Building Corp. | 2.03% |
| Medical Center Educational Building Corp. | 2.02% |
| Mississippi Development Bank | 1.74% |
| Mississippi Development Bank | 1.71% |
| Mississippi Development Bank | 1.69% |
| State of Mississippi | 1.67% |
| Mississippi Development Bank | 1.67% |
MPMSX Portfolio Allocation
Asset-class allocation of MFS Mississippi Municipal Bond Fund by percentage of net assets, from the latest SEC N-PORT filing.
| Asset class | Allocation |
|---|---|
| Fixed Income | 98.5% |
| Cash & Equivalents | 1.5% |
MPMSX Performance
Total returns for MPMSX (as of 2026-09-01), from SEC filings.
| Period | Total return |
|---|---|
| YTD | 2.8% |
| 1 year | 8.0% |
| 3 years (annualised) | 4.1% |
| 5 years (annualised) | 0.8% |
MPMSX Risk Information
Risk metrics for MPMSX, derived from monthly returns in SEC filings.
- 1-year volatility (annualised): 4.8%
MPMSX Costs and Fees
MPMSX costs about $60 per $10,000 invested per year in fund expenses.
- Net expense ratio: 0.60%
- Gross expense ratio: 0.82%
- Portfolio turnover: 7%
- Brokerage commissions: 0.00 bps of average net assets (SEC N-CEN)
MPMSX Cashflows
Over the 12 months to 2026-06, MFS Mississippi Municipal Bond Fund had net outflows of $4.80M, from monthly SEC N-PORT filings.
| Month | Net flow |
|---|---|
| 2026-06 | −$404.25K |
| 2026-05 | $239.30K |
| 2026-04 | −$500.04K |
| 2026-03 | −$602.60K |
| 2026-02 | −$110.54K |
| 2026-01 | −$173.65K |
MPMSX Debt Constituents
Largest debt holdings of MFS Mississippi Municipal Bond Fund by percentage of net assets, from the latest SEC N-PORT filing.
| Debt holding | % of net assets |
|---|---|
| Jackson County Utility Authority | 3.21% |
| Mississippi Home Corp. | 2.81% |
| Mississippi Development Bank | 2.23% |
| Medical Center Educational Building Corp. | 2.03% |
| Medical Center Educational Building Corp. | 2.02% |
| Mississippi Development Bank | 1.74% |
| Mississippi Development Bank | 1.71% |
| Mississippi Development Bank | 1.69% |
| State of Mississippi | 1.67% |
| Mississippi Development Bank | 1.67% |
MPMSX Prospectus and SEC Filings
Official MFS Mississippi Municipal Bond Fund filings on SEC EDGAR — prospectus, portfolio holdings and annual reports.
- Prospectus (485BPOS) — filed 2026-07-28
- Prospectus (485BPOS) — filed 2025-07-28
- Prospectus (485BPOS) — filed 2024-07-26
- Portfolio holdings (N-PORT) — filed 2026-08-25
- Portfolio holdings (N-PORT) — filed 2026-05-26
- Portfolio holdings (N-PORT) — filed 2026-02-25
- Annual census (N-CEN) — filed 2026-06-11
- Annual census (N-CEN) — filed 2025-06-11
Related Funds
Other Long Municipal - National 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.