MBPAX Holdings — MFS Pennsylvania Municipal Bond Fund
Data updated: 2026-08-25
MBPAX holds 247 securities. The top 10 make up 10.4% of net assets, led by Indiana County Industrial Development Authority (1.31%) and Southeastern Pennsylvania Transportation Authority (1.09%). Municipal Bonds (99.0%) and Funds & ETFs (1.0%) are the largest sectors, and 96.9% of the portfolio is in United States. Debt holdings: 245 positions, 97.2% of assets.
Holdings cover 99.49% of net asset value (98.57% of total assets; remainder is cash and receivables). As of June 30, 2026 · N-PORT.
MBPAX Portfolio Holdings
247 holdings of MFS Pennsylvania Municipal Bond Fund by percentage of net assets, from the fund's SEC N-PORT filing as of June 30, 2026. The 100 largest are listed below; the interactive table on this page lists all 247.
| Holding | Ticker | Sector | % of net assets | Value (USD) |
|---|---|---|---|---|
| Indiana County Industrial Development Authority | — | Municipal Bonds | 1.31% | $2.55M |
| Southeastern Pennsylvania Transportation Authority | — | Municipal Bonds | 1.09% | $2.12M |
| Pennsylvania State University (The) | — | Municipal Bonds | 1.08% | $2.11M |
| Cornwall Lebanon School District, Series 2026 | — | Municipal Bonds | 1.07% | $2.09M |
| City of Philadelphia, Series 2025B | — | Municipal Bonds | 1.05% | $2.04M |
| Bucks County Water and Sewer Authority | — | Municipal Bonds | 1.03% | $2.00M |
| Montgomery County Higher Education and Health Authority | — | Municipal Bonds | 0.99% | $1.93M |
| MFS Institutional Money Market Portfolio, Class A | — | Funds & ETFs | 0.97% | $1.89M |
| Pennsylvania Higher Educational Facilities Authority | — | Municipal Bonds | 0.92% | $1.80M |
| Chester County Health and Education Facilities Authority | — | Municipal Bonds | 0.90% | $1.75M |
| Pennsylvania Housing Finance Agency, Series 2026-152A | — | Municipal Bonds | 0.86% | $1.68M |
| School District of Philadelphia (The), Series 2026A | — | Municipal Bonds | 0.84% | $1.64M |
| Interboro School District, Series 2024 | — | Municipal Bonds | 0.83% | $1.61M |
| Philadelphia Gas Works Co., Series SEVENTEENTH A | — | Municipal Bonds | 0.81% | $1.58M |
| Allegheny County Sanitary Authority, Series 2025 | — | Municipal Bonds | 0.81% | $1.57M |
| Bristol Township School District, Series 2026 | — | Municipal Bonds | 0.81% | $1.57M |
| Pennsylvania Housing Finance Agency, Series 2025-150A | — | Municipal Bonds | 0.80% | $1.56M |
| Pennsylvania Housing Finance Agency | — | Municipal Bonds | 0.80% | $1.55M |
| Pennsylvania Housing Finance Agency, Series 2024 | — | Municipal Bonds | 0.79% | $1.54M |
| Pennsylvania Housing Finance Agency, Series 2026A | — | Municipal Bonds | 0.78% | $1.53M |
| Wilkes-Barre Area School District | — | Municipal Bonds | 0.78% | $1.52M |
| Pennsylvania Housing Finance Agency, Series 2026-152A | — | Municipal Bonds | 0.77% | $1.50M |
| School District of Philadelphia (The) | — | Municipal Bonds | 0.77% | $1.50M |
| Cheltenham Township School District, Series 2026 | — | Municipal Bonds | 0.74% | $1.45M |
| City of Pittsburgh, Series 2025 | — | Municipal Bonds | 0.73% | $1.42M |
| Moon Area School District, Series 2024 B | — | Municipal Bonds | 0.72% | $1.40M |
| Berks County Municipal Authority (The), Series 2024A-3 | — | Municipal Bonds | 0.72% | $1.40M |
| Temple University-of The Commonwealth System of Higher Education, Series FIRST 2025 | — | Municipal Bonds | 0.72% | $1.39M |
| Pennsylvania Turnpike Commission | — | Municipal Bonds | 0.71% | $1.39M |
| Chester County Industrial Development Authority, Series 2024 A | — | Municipal Bonds | 0.71% | $1.38M |
| Westmoreland County Industrial Development Authority | — | Municipal Bonds | 0.69% | $1.35M |
| Pennsylvania Housing Finance Agency, Series 2024-144A | — | Municipal Bonds | 0.68% | $1.33M |
| Pennsylvania Economic Development Financing Authority Parking System, Series 2024 A | — | Municipal Bonds | 0.66% | $1.29M |
| New York City Transitional Finance Authority Future Tax Secured | — | Municipal Bonds | 0.66% | $1.28M |
| State Public School Building Authority | — | Municipal Bonds | 0.66% | $1.28M |
| Philadelphia Authority for Industrial Development, Series 2017, Class I | — | Municipal Bonds | 0.65% | $1.26M |
| William Penn School District Authority, Series 2025A | — | Municipal Bonds | 0.62% | $1.21M |
| Clemson University | — | Municipal Bonds | 0.58% | $1.13M |
| Pennsylvania Housing Finance Agency | — | Municipal Bonds | 0.57% | $1.11M |
| Pennsylvania Economic Development Financing Authority | — | Municipal Bonds | 0.57% | $1.10M |
| Pennsylvania Higher Educational Facilities Authority, Series 2025 | — | Municipal Bonds | 0.56% | $1.09M |
| Delaware River Joint Toll Bridge Commission, Series 2026A | — | Municipal Bonds | 0.56% | $1.09M |
| Bethel Park School District, Series 2023 | — | Municipal Bonds | 0.55% | $1.08M |
| Pennsylvania Turnpike Commission, Series 2025B | — | Municipal Bonds | 0.55% | $1.08M |
| City of Philadelphia, Series 2023B | — | Municipal Bonds | 0.55% | $1.07M |
| Bethlehem Area School District, Series 2025 | — | Municipal Bonds | 0.55% | $1.07M |
| Pennsylvania Housing Finance Agency, Series 2025A | — | Municipal Bonds | 0.55% | $1.07M |
| Pennsylvania Turnpike Commission Oil Franchise Tax, Series 2025A | — | Municipal Bonds | 0.55% | $1.07M |
| Allegheny County Airport Authority, Series 2025A | — | Municipal Bonds | 0.55% | $1.07M |
| Pennsbury School District, Series 2024 | — | Municipal Bonds | 0.55% | $1.07M |
| Pennsylvania Higher Educational Facilities Authority, Series 2024B-1 | — | Municipal Bonds | 0.55% | $1.06M |
| Pennsylvania Housing Finance Agency | — | Municipal Bonds | 0.55% | $1.06M |
| Allegheny County Airport Authority, Series 2023A | — | Municipal Bonds | 0.54% | $1.06M |
| City of Philadelphia, Series 2024 C | — | Municipal Bonds | 0.54% | $1.06M |
| Pittsburgh Water & Sewer Authority | — | Municipal Bonds | 0.54% | $1.05M |
| Pennsylvania Economic Development Financing Authority, Series 2026A | — | Municipal Bonds | 0.54% | $1.05M |
| Maryland Health & Higher Educational Facilities Authority, Series 2025A | — | Municipal Bonds | 0.54% | $1.05M |
| Allentown Neighborhood Improvement Zone Development Authority | — | Municipal Bonds | 0.54% | $1.05M |
| Allegheny County Airport Authority, Series 2023A | — | Municipal Bonds | 0.54% | $1.05M |
| Pennsylvania Housing Finance Agency, Series 2025-149A | — | Municipal Bonds | 0.54% | $1.05M |
| Pennsylvania Economic Development Financing Authority, Series 2024 | — | Municipal Bonds | 0.54% | $1.05M |
| Brentwood School District, Series 2025 | — | Municipal Bonds | 0.54% | $1.05M |
| County of Allegheny, Series C-80 | — | Municipal Bonds | 0.54% | $1.04M |
| Philadelphia Authority for Industrial Development | — | Municipal Bonds | 0.53% | $1.04M |
| Allentown City School District, Series 2024 | — | Municipal Bonds | 0.53% | $1.04M |
| Muhlenberg School District, Series 2025 | — | Municipal Bonds | 0.53% | $1.04M |
| Allegheny County Sanitary Authority | — | Municipal Bonds | 0.53% | $1.04M |
| City of Philadelphia PA Water & Wastewater Revenue | — | Municipal Bonds | 0.53% | $1.04M |
| Muhlenberg School District, Series 2025 | — | Municipal Bonds | 0.53% | $1.03M |
| Philadelphia Authority for Industrial Development | — | Municipal Bonds | 0.53% | $1.03M |
| Erie City Water Authority | — | Municipal Bonds | 0.53% | $1.03M |
| Muhlenberg School District, Series 2024 | — | Municipal Bonds | 0.53% | $1.03M |
| Chester County Health and Education Facilities Authority, Series 2025 | — | Municipal Bonds | 0.53% | $1.03M |
| Mount Lebanon Hospital Authority | — | Municipal Bonds | 0.53% | $1.03M |
| Pennsylvania Housing Finance Agency, Series 2025 | — | Municipal Bonds | 0.53% | $1.02M |
| Pennsylvania Housing Finance Agency | — | Municipal Bonds | 0.52% | $1.02M |
| Wyalusing Area School District, Series 2025 | — | Municipal Bonds | 0.52% | $1.02M |
| County of Lackawanna | — | Municipal Bonds | 0.52% | $1.02M |
| Capital Region Water Sewer Revenue | — | Municipal Bonds | 0.52% | $1.01M |
| Pennsylvania Housing Finance Agency, Series 2024-145A | — | Municipal Bonds | 0.52% | $1.01M |
| West Cornwall Township Municipal Authority, Series 2026 A | — | Municipal Bonds | 0.52% | $1.01M |
| Philadelphia Authority for Industrial Development | — | Municipal Bonds | 0.52% | $1.01M |
| Pennsylvania Higher Educational Facilities Authority | — | Municipal Bonds | 0.52% | $1.01M |
| Geisinger Authority | — | Municipal Bonds | 0.52% | $1.01M |
| Aliquippa School District | — | Municipal Bonds | 0.52% | $1.00M |
| Northampton County General Purpose Authority | — | Municipal Bonds | 0.52% | $1.00M |
| Philadelphia Authority for Industrial Development | — | Municipal Bonds | 0.52% | $1.00M |
| Pennsylvania Housing Finance Agency, Series 2024-146A | — | Municipal Bonds | 0.51% | $1.00M |
| Pennsylvania Housing Finance Agency | — | Municipal Bonds | 0.51% | $1.00M |
| Pennsylvania Economic Development Financing Authority, Series 2021A-2 | — | Municipal Bonds | 0.51% | $1.00M |
| Lehigh County General Purpose Authority, Series 2024 | — | Municipal Bonds | 0.51% | $1.00M |
| Pennsylvania Housing Finance Agency | — | Municipal Bonds | 0.51% | $999.58K |
| Lancaster Municipal Authority, Series 2025A | — | Municipal Bonds | 0.51% | $998.46K |
| DuBois Hospital Authority, Series 2018 | — | Municipal Bonds | 0.51% | $997.58K |
| Pennsylvania Housing Finance Agency, Series 2024-144A | — | Municipal Bonds | 0.51% | $996.56K |
| Elizabeth Forward School District, Series 2025 | — | Municipal Bonds | 0.51% | $995.62K |
| Steel Valley School District, Series 2026 | — | Municipal Bonds | 0.51% | $988.77K |
| Cumberland County Municipal Authority, Series 2026 | — | Municipal Bonds | 0.51% | $988.35K |
| Allegheny County Higher Education Building Authority, Series 2026 | — | Municipal Bonds | 0.51% | $987.86K |
| Black Belt Energy Gas District | — | Municipal Bonds | 0.50% | $982.61K |
MBPAX Sector Allocation
MFS Pennsylvania Municipal Bond Fund holdings grouped by sector, by share of the portfolio's market value.
| Sector | Weight | Holdings |
|---|---|---|
| Municipal Bonds | 99.0% | 245 |
| Funds & ETFs | 1.0% | 1 |
| Corporate Bonds | 0.0% | 1 |
MBPAX Country Allocation
Where MFS Pennsylvania Municipal Bond Fund's holdings are domiciled, by percentage of net assets (largest 4).
| Country | % of net assets |
|---|---|
| United States | 96.9% |
| Puerto Rico | 2.0% |
| U.S. Virgin Islands | 0.3% |
| Guam | 0.3% |
MBPAX Portfolio Allocation
Asset-class allocation of MFS Pennsylvania Municipal Bond Fund by percentage of net assets, from the latest SEC N-PORT filing.
| Asset class | Allocation |
|---|---|
| Fixed Income | 98.1% |
| Cash & Equivalents | 1.4% |
MBPAX Debt Constituents
Largest debt holdings of MFS Pennsylvania Municipal Bond Fund by percentage of net assets, from the latest SEC N-PORT filing.
| Debt holding | % of net assets |
|---|---|
| Indiana County Industrial Development Authority | 1.31% |
| Southeastern Pennsylvania Transportation Authority | 1.09% |
| Pennsylvania State University (The) | 1.08% |
| Cornwall Lebanon School District | 1.07% |
| City of Philadelphia PA Airport Revenue | 1.05% |
| Bucks County Water and Sewer Authority | 1.03% |
| Montgomery County Higher Education and Health Authority | 0.99% |
| Pennsylvania Higher Educational Facilities Authority | 0.92% |
| Chester County Health and Education Facilities Authority | 0.90% |
| Pennsylvania Housing Finance Agency | 0.86% |
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.