MWVIX — MFS West Virginia Municipal Bond Fund
Data updated: 2026-06-11
MWVIX — MFS West Virginia Municipal Bond Fund data: holdings, portfolio allocation, expenses, performance, cashflows, risk and SEC filings. Long Municipal - National Bond · $83.62M AUM · 0.62% expense ratio · 4.1% 1-yr return. From SEC regulatory filings.
MWVIX Fund Overview
MWVIX — 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: $83.62M
- 1-year return: 4.1%
- Ticker: MWVIX
- SEC CIK: 0000751656
- SEC series ID: S000002528
- Share class ID: C000169765
MWVIX 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 | 2.46% |
| Morgantown Utility Board, Inc. | 2.45% |
| West Virginia University | 2.43% |
| West Virginia Hospital Finance Authority | 2.32% |
| Puerto Rico Sales Tax Financing Corp. Sales Tax Revenue | 2.09% |
| West Virginia Hospital Finance Authority | 1.82% |
| West Virginia Water Development Authority | 1.78% |
| MFS Institutional Money Market Portfolio | 1.58% |
| State of West Virginia | 1.56% |
| City of Wheeling WV Waterworks & Sewerage System Revenue | 1.55% |
MWVIX 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 | 96.7% |
| Cash & Equivalents | 1.6% |
MWVIX Performance
Total returns for MWVIX (as of 2026-08-01), from SEC filings.
| Period | Total return |
|---|---|
| YTD | -0.3% |
| 1 year | 4.1% |
| 3 years (annualised) | 3.0% |
| 5 years (annualised) | 0.9% |
MWVIX Risk Information
Risk metrics for MWVIX, derived from monthly returns in SEC filings.
- 1-year volatility (annualised): 5.0%
MWVIX Costs and Fees
MWVIX costs about $62 per $10,000 invested per year in fund expenses.
- Net expense ratio: 0.62%
- Gross expense ratio: 0.77%
- Portfolio turnover: 12%
- Brokerage commissions: 0.00 bps of average net assets (SEC N-CEN)
MWVIX Cashflows
Over the 12 months to 2026-03, MFS West Virginia Municipal Bond Fund had net outflows of $7.35M, from monthly SEC N-PORT filings.
| Month | Net flow |
|---|---|
| 2026-03 | −$633.11K |
| 2026-02 | −$460.39K |
| 2026-01 | $40.58K |
| 2025-12 | −$1.45M |
| 2025-11 | $66.71K |
| 2025-10 | −$451.03K |
MWVIX 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 | 2.46% |
| Morgantown Utility Board, Inc. | 2.45% |
| West Virginia University | 2.43% |
| West Virginia Hospital Finance Authority | 2.32% |
| Puerto Rico Sales Tax Financing Corp. Sales Tax Revenue | 2.09% |
| West Virginia Hospital Finance Authority | 1.82% |
| West Virginia Water Development Authority | 1.78% |
| State of West Virginia | 1.56% |
| City of Wheeling WV Waterworks & Sewerage System Revenue | 1.55% |
| Marshall University | 1.52% |
MWVIX Prospectus and SEC Filings
Official MFS West Virginia Municipal Bond Fund filings on SEC EDGAR — prospectus, portfolio holdings and annual reports.
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.