{
  "page": "compare",
  "query": {
    "a": "MTSCX",
    "b": "MFSMX"
  },
  "retrieved_at": "2026-07-07T17:03:07+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 South Carolina Municipal Bond Fund",
    "ticker": "MTSCX",
    "slug": "MTSCX",
    "series_id": "S000002525",
    "html_url": "https://fundwatcher.app/funds/MTSCX/"
  },
  "fund_b": {
    "name": "MFS Maryland Municipal Bond Fund",
    "ticker": "MFSMX",
    "slug": "MFSMX",
    "series_id": "S000002533",
    "html_url": "https://fundwatcher.app/funds/MFSMX/"
  },
  "overlap": {
    "coverage_a_by_b": "0.1344247587626069820037748907",
    "coverage_b_by_a": "0.1344247587626069820037748906",
    "shared_count": 63,
    "as_of": {
      "a": "2026-03-31",
      "b": "2026-03-31"
    },
    "a_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",
        "value": "3715839.20",
        "weight": "0.01548448",
        "shared": false
      },
      {
        "name": "PUERTO RICO SALES TAX FING COR REGD OID B/E 5.00000000",
        "value": "3421378.91",
        "weight": "0.01425741",
        "shared": true
      },
      {
        "name": "City of Charleston, Series 2022",
        "value": "3129291.00",
        "weight": "0.01304024",
        "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",
        "value": "2900299.50",
        "weight": "0.01208600",
        "shared": false
      },
      {
        "name": "Grand Strand Water & Sewer Authority, Series 2026",
        "value": "2832701.02",
        "weight": "0.01180430",
        "shared": false
      },
      {
        "name": "SPARTANBURG SC REGL HLTH SVCS DIST INC HOSP REVENUE",
        "value": "2790276.30",
        "weight": "0.01162751",
        "shared": true
      },
      {
        "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
      },
      {
        "name": "Woodruff Facilities Corp., Series 2025",
        "value": "2375773.30",
        "weight": "0.00990021",
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      },
      {
        "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",
        "value": "2222282.10",
        "weight": "0.00926059",
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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",
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      },
      {
        "name": "SOUTH CAROLINA ST HSG FIN & DEV AUTH MTGE REVENUE",
        "value": "2086534.47",
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      },
      {
        "name": "Clemson University, Series 2025A",
        "value": "2082896.00",
        "weight": "0.00867975",
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      {
        "name": "SOUTH CAROLINA ST PUBLIC SVC AUTH REVENUE",
        "value": "2079001.17",
        "weight": "0.00866352",
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      },
      {
        "name": "City of Charleston Waterworks & Sewer System Revenue",
        "value": "2076405.20",
        "weight": "0.00865270",
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      },
      {
        "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",
        "weight": "0.00860190",
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      {
        "name": "South Carolina (State of) Jobs-Economic Development Authority (Prisma Health Obligated Group), Series 2018, RB",
        "value": "2056628.00",
        "weight": "0.00857029",
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      },
      {
        "name": "SOUTH CAROLINA ST PUBLIC SVC AUTH REVENUE",
        "value": "2053265.00",
        "weight": "0.00855627",
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      },
      {
        "name": "Columbia Facilities Corp., Series 2025 A",
        "value": "2051626.00",
        "weight": "0.00854944",
        "shared": false
      },
      {
        "name": "SC MDUMED 5.25 11/15/2050",
        "value": "2048013.60",
        "weight": "0.00853439",
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      {
        "name": "Corp. ForGreer, Series 2025",
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        "weight": "0.00850335",
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      {
        "name": "CHARLSTN SC ARP 5.25% 7/1/2054",
        "value": "2034773.20",
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      {
        "name": "Spartanburg County School District No. 7",
        "value": "2030795.80",
        "weight": "0.00846264",
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      {
        "name": "County of Horry",
        "value": "2029676.40",
        "weight": "0.00845797",
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      {
        "name": "SOUTH CAROLINA ST HSG FIN & DEV AUTH MTGE REVENUE",
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        "weight": "0.00842746",
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      },
      {
        "name": "South Carolina Jobs-Economic Development Authority, Series 2025",
        "value": "2020207.80",
        "weight": "0.00841852",
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      {
        "name": "NORTH CHRLTN SC 5% 10/1/2040",
        "value": "2011061.20",
        "weight": "0.00838040",
        "shared": false
      },
      {
        "name": "SOUTH CAROLINA ST JOBS-ECON DEV AUTH ECON DEV REVENUE",
        "value": "2007575.60",
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        "shared": false
      },
      {
        "name": "SOUTH CAROLINA ST JOBS-ECON DEV AUTH HLTHCARE REVENUE",
        "value": "2004324.20",
        "weight": "0.00835233",
        "shared": false
      },
      {
        "name": "South Carolina State Housing Finance & Development Authority, Series M TEMS BDS 2023 A FN",
        "value": "2003500.40",
        "weight": "0.00834890",
        "shared": false
      },
      {
        "name": "SOUTH CAROLINA ST JOBS-ECON DEV AUTH ECON DEV REVENUE",
        "value": "2002353.80",
        "weight": "0.00834412",
        "shared": false
      },
      {
        "name": "South Carolina Jobs-Economic Development Authority, Series 2023A",
        "value": "1985930.40",
        "weight": "0.00827568",
        "shared": false
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      {
        "name": "UNIV SC HGH ED 5% 5/1/2046",
        "value": "1978957.54",
        "weight": "0.00824662",
        "shared": false
      },
      {
        "name": "GREENWOOD HOSP-REF",
        "value": "1976551.17",
        "weight": "0.00823659",
        "shared": false
      },
      {
        "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",
        "value": "1937259.53",
        "weight": "0.00807286",
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      },
      {
        "name": "HORRY CNTY S C 4.50% 9/1/2052",
        "value": "1901860.60",
        "weight": "0.00792535",
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      },
      {
        "name": "College of Charleston, Series 2025A",
        "value": "1896887.40",
        "weight": "0.00790462",
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      },
      {
        "name": "BEAUFORT CNTY 4% 3/1/2048",
        "value": "1896257.00",
        "weight": "0.00790200",
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      },
      {
        "name": "South Island Public Service District",
        "value": "1888969.80",
        "weight": "0.00787163",
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      },
      {
        "name": "SOUTH CAROLINA ST JOBS-ECON DEV AUTH HOSP REVENUE",
        "value": "1885043.80",
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      }
    ],
    "b_top": [
      {
        "name": "MFS Institutional Money Market Portfolio, Class A",
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        "weight": "0.03287827",
        "shared": true
      },
      {
        "name": "MARYLAND ST ECON DEV CORP LEASE REVENUE",
        "value": "2066416.60",
        "weight": "0.01327708",
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      {
        "name": "Maryland Economic Development Corp., Series 2024",
        "value": "1956308.20",
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      {
        "name": "Montgomery (County of), MD, Series 2017, GO Bonds",
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      {
        "name": "MARYLAND ST STD 5% 5/1/2035",
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      },
      {
        "name": "PUERTO RICO SALES TAX FING COR REGD OID B/E 5.00000000",
        "value": "1727325.78",
        "weight": "0.01109837",
        "shared": true
      },
      {
        "name": "County of Prince George's, Series 2025 A",
        "value": "1607726.55",
        "weight": "0.01032992",
        "shared": false
      },
      {
        "name": "Washington Metropolitan Area Transit Authority Dedicated",
        "value": "1607187.60",
        "weight": "0.01032646",
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      {
        "name": "Maryland Stadium Authority, Series 2024",
        "value": "1571792.40",
        "weight": "0.01009904",
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      },
      {
        "name": "County of Anne Arundel, Series 2025",
        "value": "1562597.40",
        "weight": "0.01003996",
        "shared": false
      },
      {
        "name": "MD HLTH & HGR EDL-A",
        "value": "1561890.15",
        "weight": "0.01003541",
        "shared": false
      },
      {
        "name": "Maryland Health & Higher Educational Facilities Authority",
        "value": "1554150.45",
        "weight": "0.00998568",
        "shared": false
      },
      {
        "name": "PRINCE GEO COP 5% 10/1/48",
        "value": "1524666.75",
        "weight": "0.00979625",
        "shared": false
      },
      {
        "name": "Maryland Community Development Administration, Series 2025 F-1",
        "value": "1506350.25",
        "weight": "0.00967856",
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      {
        "name": "MARYLAND STADIUM AUTHORITY",
        "value": "1492435.35",
        "weight": "0.00958915",
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      },
      {
        "name": "WASHINGTON SUBURBAN SANITARY COMMISSION",
        "value": "1461898.35",
        "weight": "0.00939295",
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      },
      {
        "name": "COUNTY OF BALTIMORE MD",
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      {
        "name": "County of Howard",
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        "weight": "0.00915007",
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      {
        "name": "MARYLAND ST HLTH & HGR EDUCTNL FACS AUTH REVENUE",
        "value": "1406792.17",
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      {
        "name": "Maryland Health & Higher Educational Facilities Authority, Series 2004",
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      {
        "name": "County of Anne Arundel, Series 2023",
        "value": "1393211.60",
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      },
      {
        "name": "City of Baltimore, Series 2019 A",
        "value": "1392087.02",
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      },
      {
        "name": "Maryland Community Development Administration Department of Housing and Community Development, Residential Revenue Bonds, Taxable Series 2019D",
        "value": "1391971.66",
        "weight": "0.00894366",
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      },
      {
        "name": "MARYLAND ST STA 4% 6/1/2046",
        "value": "1314577.29",
        "weight": "0.00844639",
        "shared": false
      },
      {
        "name": "MARYLAND HEALTH & HIGHER EDUCATIONAL FACILITIES AUTHORITY",
        "value": "1288038.33",
        "weight": "0.00827587",
        "shared": false
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      {
        "name": "Maryland Health & Higher Educational Facilities Authority",
        "value": "1260651.72",
        "weight": "0.00809990",
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      },
      {
        "name": "MONTGOMERY CNTY MD REVENUE REGD B/E 5.00000000",
        "value": "1240317.19",
        "weight": "0.00796925",
        "shared": false
      },
      {
        "name": "Maryland Community Development Administration Local Government Infrastructure",
        "value": "1230218.13",
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        "shared": false
      },
      {
        "name": "MD CMNTY DEV-D-1",
        "value": "1190841.13",
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      },
      {
        "name": "Washington Metropolitan Area Transit Authority, Series 2018, RB",
        "value": "1155596.68",
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      },
      {
        "name": "MD HEFA 4% 7/1/2048",
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      },
      {
        "name": "County of Montgomery",
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      {
        "name": "MD CMNTY DEPT ADMIN-B",
        "value": "1097910.15",
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      },
      {
        "name": "Maryland Health & Higher Educational Facilities Authority",
        "value": "1094371.76",
        "weight": "0.00703153",
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      },
      {
        "name": "CALIFORNIA COMMUNITY VAR",
        "value": "1081998.20",
        "weight": "0.00695203",
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      },
      {
        "name": "MD TRANSPRTN-A-REF",
        "value": "1080306.40",
        "weight": "0.00694116",
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      },
      {
        "name": "Montgomery County Housing Opportunities Commission, Series 2023 C",
        "value": "1076666.80",
        "weight": "0.00691777",
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      },
      {
        "name": "Maryland Department of Housing & Community Development, Series 2024 E",
        "value": "1076506.43",
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        "shared": false
      },
      {
        "name": "MD ECON DEV CORP-A",
        "value": "1072393.30",
        "weight": "0.00689031",
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      },
      {
        "name": "County of Prince George's",
        "value": "1040425.00",
        "weight": "0.00668491",
        "shared": false
      },
      {
        "name": "MARYLAND ST ECON DEV CORP AIR CARGO REVENUE",
        "value": "1040054.84",
        "weight": "0.00668253",
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      },
      {
        "name": "Washington Metropolitan Area Transit Authority, Series 2025, RB",
        "value": "1038645.70",
        "weight": "0.00667348",
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      },
      {
        "name": "Maryland Stadium Authority Sports Entertainment Facilities Revenue, Series 2023 A",
        "value": "1034419.30",
        "weight": "0.00664632",
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      },
      {
        "name": "State of Maryland Department of Transportation, Series 2024 A",
        "value": "1032954.50",
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      },
      {
        "name": "MARYLAND ST HLTH & HGR EDUCTNL MARYLAND HEALTH & HIGHER EDUCATIONAL FACILITIES AU",
        "value": "1031303.10",
        "weight": "0.00662630",
        "shared": true
      },
      {
        "name": "MARYLAND ST HLTH & HGR EDUCTNL FACS AUTH REVENUE",
        "value": "1025953.80",
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      },
      {
        "name": "Maryland Department of Housing & Community Development, Series 2025 D",
        "value": "1024100.00",
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      },
      {
        "name": "State of Maryland Department of Transportation, Series 2024 A",
        "value": "1023701.30",
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      },
      {
        "name": "MARYLAND ST STA 4% 6/1/2036",
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      },
      {
        "name": "Montgomery County Housing Opportunities Commission, Series 2025A",
        "value": "1021211.30",
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    ]
  },
  "error": null,
  "sources": [
    {
      "label": "N-PORT (fund A)",
      "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"
    },
    {
      "label": "N-PORT (fund B)",
      "accession_no": "0002071691-26-011429",
      "as_of": "2026-03-31",
      "edgar_url": "https://www.sec.gov/Archives/edgar/data/751656/000207169126011429/0002071691-26-011429-index.htm"
    }
  ]
}