{
  "page": "compare",
  "query": {
    "a": "MPALX",
    "b": "MFSCX"
  },
  "retrieved_at": "2026-07-07T18:02:44+00:00",
  "disclaimer": "Informational only — not investment advice. FundWatcher presents publicly available data and makes no recommendation to buy or sell any security. Verify all figures against the source filing before relying on them.",
  "attribution": "Data sourced from U.S. SEC EDGAR filings (Forms N-PORT, N-CEN, and prospectus Risk/Return summaries). FundWatcher is not affiliated with the SEC.",
  "terms": {
    "notice": "Use of this data is subject to the FundWatcher Terms of Service. Information may be used only for personal, non-commercial research and may not be redistributed.",
    "url": "https://fundwatcher.app/terms/"
  },
  "fund_a": {
    "name": "MFS Pennsylvania Municipal Bond Fund",
    "ticker": "MPALX",
    "slug": "MPALX",
    "series_id": "S000002524",
    "html_url": "https://fundwatcher.app/funds/MPALX/"
  },
  "fund_b": {
    "name": "MFS South Carolina Municipal Bond Fund",
    "ticker": "MFSCX",
    "slug": "MFSCX",
    "series_id": "S000002525",
    "html_url": "https://fundwatcher.app/funds/MFSCX/"
  },
  "overlap": {
    "coverage_a_by_b": "0.1010697923261622178039754651",
    "coverage_b_by_a": "0.1010697923261622178039754651",
    "shared_count": 57,
    "as_of": {
      "a": "2026-03-31",
      "b": "2026-03-31"
    },
    "a_top": [
      {
        "name": "Indiana County Industrial Development Authority, Pennsylvania, Revenue Bonds, Foundation for Indiana University of Pennsylvania Project, Refunding Ser",
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      },
      {
        "name": "Southeastern Pennsylvania Transportation Authority, Revenue Bonds, Asset Improvement Series 2022",
        "value": "2082956.20",
        "weight": "0.01111847",
        "shared": false
      },
      {
        "name": "Pennsylvania State University (The), Series 2022A",
        "value": "2078336.40",
        "weight": "0.01109381",
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      {
        "name": "Philadelphia (City of), PA, Series 2025, RB",
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        "weight": "0.01062442",
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      },
      {
        "name": "Bucks County Water and Sewer Authority, Pennsylvania, Sewer System Revenue Bonds, Series 2022A",
        "value": "1947899.00",
        "weight": "0.01039756",
        "shared": false
      },
      {
        "name": "MONTGOMERY HGR EDU-B",
        "value": "1874530.00",
        "weight": "0.01000593",
        "shared": false
      },
      {
        "name": "PENNSYLVANIA ST HGR EDUCTNL FACS AUTH REVENUE",
        "value": "1777309.80",
        "weight": "0.00948698",
        "shared": false
      },
      {
        "name": "Chester County Health and Education Facilities Authority",
        "value": "1752424.63",
        "weight": "0.00935415",
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      },
      {
        "name": "Pennsylvania Housing Finance Agency, Single Family Mortgage, Series 2026-152A",
        "value": "1679298.15",
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      },
      {
        "name": "MFS Institutional Money Market Portfolio, Class A",
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        "shared": true
      },
      {
        "name": "INTER PA 458436 5.50% 8/15/2063",
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        "shared": false
      },
      {
        "name": "Pennsylvania Housing Finance Agency",
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      {
        "name": "PHIL PA GAS/AGM 5.25% 8/1/54",
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      {
        "name": "ALLEG PA SWR 5% 12/1/2050",
        "value": "1544385.15",
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        "shared": false
      },
      {
        "name": "BRISTOL TWP PA SCH DIST",
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        "shared": false
      },
      {
        "name": "School District of Philadelphia (The), Series 2019A",
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        "shared": false
      },
      {
        "name": "PENNSYLVANIA ST HSG FIN AGY SF MTGE REVENUE",
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      },
      {
        "name": "SCHOOL DISTRICT OF PHILADELPHIA THE",
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      },
      {
        "name": "WILKES-BARRE PA AREA SCH DIST",
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      },
      {
        "name": "PENNSYLVANIA ST HSG FIN AGY MF HSG REVENUE",
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      {
        "name": "Pennsylvania Housing Finance Agency, Series 2026, RB",
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      {
        "name": "Chester County School Authority, Series 2024",
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        "name": "PENNSYLVANIA ST HSG FIN AGY SF REGD B/E 6.00000000",
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      },
      {
        "name": "Cheltenham Township School District, Series 2026",
        "value": "1427596.41",
        "weight": "0.00762027",
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      {
        "name": "Pittsburgh, Pennsylvania, General Obligation Bonds, Capital Improvement Series 2025",
        "value": "1384232.21",
        "weight": "0.00738880",
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      {
        "name": "TOWER HEALTH OBLIGATED GROUP 5.0% 06-30-39",
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      {
        "name": "TEMPLE UNIV-REF-FIRST",
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      {
        "name": "Pennsylvania Turnpike Commission, Series 2019A",
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      {
        "name": "Moon Area School District, Series 2024 B",
        "value": "1353832.95",
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      {
        "name": "Chester (County of), PA Industrial Development Authority (University Student Housing, LLC at West Chester University of Pennsylvania)",
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      {
        "name": "WESTMORELAND PA 4% 7/1/2037",
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      {
        "name": "Philadelphia (City of), PA Authority for Industrial Development (University Square Apartments), Series 2017, RB",
        "value": "1267249.88",
        "weight": "0.00676437",
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      {
        "name": "ST PUB SCH BLDG AUTH",
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        "weight": "0.00675608",
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      {
        "name": "PENNSYLVANIA ST ECON DEV FINGA REGD OID B/E AG 4.00000000",
        "value": "1263748.07",
        "weight": "0.00674568",
        "shared": false
      },
      {
        "name": "NYC TRANSITIONAL FIN",
        "value": "1251765.11",
        "weight": "0.00668171",
        "shared": false
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      {
        "name": "PENNSYLVANIA ST HSG FIN AGY SF REGD B/E 5.50000000",
        "value": "1232528.19",
        "weight": "0.00657903",
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      },
      {
        "name": "William Penn School District Authority, Series 2025A",
        "value": "1181564.64",
        "weight": "0.00630699",
        "shared": false
      },
      {
        "name": "Pennsylvania Higher Education Assistance Agency, Education Loan Revenue Bonds, Senior Series 2022A",
        "value": "1152271.20",
        "weight": "0.00615063",
        "shared": false
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      {
        "name": "PENNSYLVANIA ST HSG FIN AGY SF REGD B/E 5.75000000",
        "value": "1136331.98",
        "weight": "0.00606555",
        "shared": false
      },
      {
        "name": "Clemson University",
        "value": "1111141.05",
        "weight": "0.00593109",
        "shared": true
      },
      {
        "name": "PENNSYLVANIA ST ECON DEV FING AUTH SOLID WASTE DISPOSAL REV",
        "value": "1104580.50",
        "weight": "0.00589607",
        "shared": false
      },
      {
        "name": "BETHEL PK SD",
        "value": "1073026.20",
        "weight": "0.00572763",
        "shared": false
      },
      {
        "name": "PENNSYLVANIA ST HGR EDUCTNL FA REGD B/E 5.50000000",
        "value": "1061502.30",
        "weight": "0.00566612",
        "shared": false
      },
      {
        "name": "PHIL PA WTR/AGM 5.5% 9/1/53",
        "value": "1058568.10",
        "weight": "0.00565046",
        "shared": false
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      {
        "name": "Pennsylvania Turnpike Commission, Series 2025B",
        "value": "1056660.00",
        "weight": "0.00564027",
        "shared": false
      },
      {
        "name": "BETHLEHEM ASD",
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      {
        "name": "Pennsylvania Turnpike Commission, Series 2025 A",
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      {
        "name": "ALLEG PA ARPT 5.50% 1/1/2050 @",
        "value": "1048712.60",
        "weight": "0.00559785",
        "shared": false
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      {
        "name": "PENNSBURY SD",
        "value": "1045499.20",
        "weight": "0.00558070",
        "shared": false
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      {
        "name": "PENNSYLVANIA ST HGR EDUCTNL FA REGD B/E AG 5.25000000",
        "value": "1044490.80",
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        "shared": false
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    ],
    "b_top": [
      {
        "name": "MFS Institutional Money Market Portfolio, Class A",
        "value": "9422751.47",
        "weight": "0.03926606",
        "shared": true
      },
      {
        "name": "Beaufort-Jasper Water & Sewer Authority, Series 2025A",
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      {
        "name": "PUERTO RICO SALES TAX FING COR REGD OID B/E 5.00000000",
        "value": "3421378.91",
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        "shared": true
      },
      {
        "name": "City of Charleston, Series 2022",
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        "shared": false
      },
      {
        "name": "Spartanburg County School District No. 4, Series 2022 A, GO Bonds",
        "value": "3107880.60",
        "weight": "0.01295102",
        "shared": false
      },
      {
        "name": "SOUTH CAROLINA ST PORTS AUTH PORTS REVENUE",
        "value": "3032784.60",
        "weight": "0.01263808",
        "shared": false
      },
      {
        "name": "SOUTH CAROLINA ST JOBS-ECON DE REGD B/E 5.25000000",
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        "weight": "0.01208600",
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      {
        "name": "Grand Strand Water & Sewer Authority, Series 2026",
        "value": "2832701.02",
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      {
        "name": "SPARTANBURG SC REGL HLTH SVCS DIST INC HOSP REVENUE",
        "value": "2790276.30",
        "weight": "0.01162751",
        "shared": false
      },
      {
        "name": "SOUTH CAROLINA ST HSG FIN & DEV AUTH MTGE REVENUE",
        "value": "2728233.21",
        "weight": "0.01136897",
        "shared": false
      },
      {
        "name": "CHARLESTON SC HSG AUTH REVENUE REGD B/E HUD SEC 5.00000000",
        "value": "2578609.50",
        "weight": "0.01074546",
        "shared": false
      },
      {
        "name": "City of Columbia, Series 2023A",
        "value": "2426839.52",
        "weight": "0.01011301",
        "shared": false
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      {
        "name": "Woodruff Facilities Corp., Series 2025",
        "value": "2375773.30",
        "weight": "0.00990021",
        "shared": false
      },
      {
        "name": "Medical University Hospital Authority, An Agency of The State of south Carolina FHA Insured Hospital Mortgage, Indian Land Project",
        "value": "2244911.54",
        "weight": "0.00935489",
        "shared": false
      },
      {
        "name": "South Carolina State Housing Finance and Development Authority, Series 2026A",
        "value": "2224354.60",
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      {
        "name": "Clemson University",
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        "weight": "0.00926059",
        "shared": true
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      {
        "name": "SOUTH CAROLINA ST PUBLIC SVC A SOUTH CAROLINA PUBLIC SERVICE AUTHORITY",
        "value": "2193887.60",
        "weight": "0.00914227",
        "shared": false
      },
      {
        "name": "PATRIOTS EN GRP 5.25% MT",
        "value": "2135007.40",
        "weight": "0.00889691",
        "shared": true
      },
      {
        "name": "SOUTH CAROLINA ST HSG FIN & DEV AUTH MTGE REVENUE",
        "value": "2086534.47",
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        "shared": false
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      {
        "name": "Clemson University, Series 2025A",
        "value": "2082896.00",
        "weight": "0.00867975",
        "shared": false
      },
      {
        "name": "SOUTH CAROLINA ST PUBLIC SVC AUTH REVENUE",
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        "shared": false
      },
      {
        "name": "City of Charleston Waterworks & Sewer System Revenue",
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        "shared": false
      },
      {
        "name": "City of Columbia, Series 2025",
        "value": "2069569.20",
        "weight": "0.00862421",
        "shared": false
      },
      {
        "name": "GREENVILLE-SPARTANBURG SC ARPT DIST ARPT SYS REVENUE",
        "value": "2064811.40",
        "weight": "0.00860439",
        "shared": false
      },
      {
        "name": "Spartanburg County School District No. 4",
        "value": "2064214.00",
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        "shared": false
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      {
        "name": "South Carolina (State of) Jobs-Economic Development Authority (Prisma Health Obligated Group), Series 2018, RB",
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        "weight": "0.00857029",
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      },
      {
        "name": "SOUTH CAROLINA ST PUBLIC SVC AUTH REVENUE",
        "value": "2053265.00",
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      },
      {
        "name": "Columbia Facilities Corp., Series 2025 A",
        "value": "2051626.00",
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        "shared": false
      },
      {
        "name": "SC MDUMED 5.25 11/15/2050",
        "value": "2048013.60",
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      },
      {
        "name": "Corp. ForGreer, Series 2025",
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      },
      {
        "name": "CHARLSTN SC ARP 5.25% 7/1/2054",
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      },
      {
        "name": "Spartanburg County School District No. 7",
        "value": "2030795.80",
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      {
        "name": "County of Horry",
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      {
        "name": "SOUTH CAROLINA ST HSG FIN & DEV AUTH MTGE REVENUE",
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      },
      {
        "name": "South Carolina Jobs-Economic Development Authority, Series 2025",
        "value": "2020207.80",
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      {
        "name": "NORTH CHRLTN SC 5% 10/1/2040",
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      {
        "name": "SOUTH CAROLINA ST JOBS-ECON DEV AUTH ECON DEV REVENUE",
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      },
      {
        "name": "SOUTH CAROLINA ST JOBS-ECON DEV AUTH HLTHCARE REVENUE",
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        "shared": false
      },
      {
        "name": "South Carolina State Housing Finance & Development Authority, Series M TEMS BDS 2023 A FN",
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      },
      {
        "name": "SOUTH CAROLINA ST JOBS-ECON DEV AUTH ECON DEV REVENUE",
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      {
        "name": "South Carolina Jobs-Economic Development Authority, Series 2023A",
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      {
        "name": "UNIV SC HGH ED 5% 5/1/2046",
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      },
      {
        "name": "GREENWOOD HOSP-REF",
        "value": "1976551.17",
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      },
      {
        "name": "SOUTH CAROLINA ST JOBS-ECON DEV AUTH RSDL DEV REVENUE",
        "value": "1966774.00",
        "weight": "0.00819585",
        "shared": false
      },
      {
        "name": "SOUTH CAROLINA ST HSG FIN & DEV AUTH MTGE REVENUE",
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        "weight": "0.00807286",
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      },
      {
        "name": "HORRY CNTY S C 4.50% 9/1/2052",
        "value": "1901860.60",
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        "shared": false
      },
      {
        "name": "College of Charleston, Series 2025A",
        "value": "1896887.40",
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        "shared": false
      },
      {
        "name": "BEAUFORT CNTY 4% 3/1/2048",
        "value": "1896257.00",
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        "shared": false
      },
      {
        "name": "South Island Public Service District",
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      },
      {
        "name": "SOUTH CAROLINA ST JOBS-ECON DEV AUTH HOSP REVENUE",
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      }
    ]
  },
  "error": null,
  "sources": [
    {
      "label": "N-PORT (fund A)",
      "accession_no": "0002071691-26-011421",
      "as_of": "2026-03-31",
      "edgar_url": "https://www.sec.gov/Archives/edgar/data/751656/000207169126011421/0002071691-26-011421-index.htm"
    },
    {
      "label": "N-PORT (fund B)",
      "accession_no": "0002071691-26-011434",
      "as_of": "2026-03-31",
      "edgar_url": "https://www.sec.gov/Archives/edgar/data/751656/000207169126011434/0002071691-26-011434-index.htm"
    }
  ]
}