MBWVX — MFS West Virginia Municipal Bond Fund
Data updated: 2026-08-25
MBWVX — MFS West Virginia Municipal Bond Fund. Long Municipal - National Bond · $82.90M AUM. Holdings, fees, performance and SEC filings.
MBWVX Fund Overview
MBWVX — MFS West Virginia 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: $82.90M
- 1-year return: 6.9%
- Ticker: MBWVX
- SEC CIK: 0000751656
- SEC series ID: S000002528
- Share class ID: C000006975
MBWVX Holdings
Top 10 holdings of MFS West Virginia Municipal Bond Fund by percentage of net assets, from the fund's latest SEC N-PORT filing.
| Holding | % of net assets |
|---|---|
| State of West Virginia | 2.51% |
| Morgantown Utility Board, Inc. | 2.48% |
| West Virginia University | 2.47% |
| West Virginia Hospital Finance Authority | 2.40% |
| MFS Institutional Money Market Portfolio | 2.17% |
| Puerto Rico Sales Tax Financing Corp. Sales Tax Revenue | 2.11% |
| West Virginia Water Development Authority | 1.79% |
| City of Wheeling WV Waterworks & Sewerage System Revenue | 1.63% |
| Marshall University | 1.59% |
| State of West Virginia | 1.58% |
MBWVX Portfolio Allocation
Asset-class allocation of MFS West Virginia Municipal Bond Fund by percentage of net assets, from the latest SEC N-PORT filing.
| Asset class | Allocation |
|---|---|
| Fixed Income | 97.2% |
| Cash & Equivalents | 2.2% |
MBWVX Performance
Total returns for MBWVX (as of 2026-09-01), from SEC filings.
| Period | Total return |
|---|---|
| YTD | 2.2% |
| 1 year | 6.9% |
| 3 years (annualised) | 3.0% |
| 5 years (annualised) | 0.1% |
MBWVX Risk Information
Risk metrics for MBWVX, derived from monthly returns in SEC filings.
- 1-year volatility (annualised): 4.9%
MBWVX Costs and Fees
MBWVX costs about $162 per $10,000 invested per year in fund expenses.
- Net expense ratio: 1.62%
- Gross expense ratio: 1.80%
- Portfolio turnover: 12%
- Brokerage commissions: 0.00 bps of average net assets (SEC N-CEN)
MBWVX Cashflows
Over the 12 months to 2026-06, MFS West Virginia Municipal Bond Fund had net outflows of $6.62M, from monthly SEC N-PORT filings.
| Month | Net flow |
|---|---|
| 2026-06 | −$1.31K |
| 2026-05 | −$2.46M |
| 2026-04 | $83.36K |
| 2026-03 | −$633.11K |
| 2026-02 | −$460.39K |
| 2026-01 | $40.58K |
MBWVX Debt Constituents
Largest debt holdings of MFS West Virginia Municipal Bond Fund by percentage of net assets, from the latest SEC N-PORT filing.
| Debt holding | % of net assets |
|---|---|
| State of West Virginia | 2.51% |
| Morgantown Utility Board, Inc. | 2.48% |
| West Virginia University | 2.47% |
| West Virginia Hospital Finance Authority | 2.40% |
| Puerto Rico Sales Tax Financing Corp. Sales Tax Revenue | 2.11% |
| West Virginia Water Development Authority | 1.79% |
| City of Wheeling WV Waterworks & Sewerage System Revenue | 1.63% |
| Marshall University | 1.59% |
| State of West Virginia | 1.58% |
| Fairmont State University | 1.39% |
MBWVX Prospectus and SEC Filings
Official MFS West Virginia 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.