{
  "page": "compare",
  "query": {
    "a": "MIVAX",
    "b": "MFSCX"
  },
  "retrieved_at": "2026-07-07T19:07:11+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 Virginia Municipal Bond Fund",
    "ticker": "MIVAX",
    "slug": "MIVAX",
    "series_id": "S000002527",
    "html_url": "https://fundwatcher.app/funds/MIVAX/"
  },
  "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": "0.1293400806166512449160627788",
    "coverage_b_by_a": "0.1293400806166512449160627789",
    "shared_count": 58,
    "as_of": {
      "a": "2026-03-31",
      "b": "2026-03-31"
    },
    "a_top": [
      {
        "name": "MFS Institutional Money Market Portfolio, Class A",
        "value": "7156754.28",
        "weight": "0.02097584",
        "shared": true
      },
      {
        "name": "PUERTO RICO SALES TAX FING COR REGD OID B/E 5.00000000",
        "value": "5981471.55",
        "weight": "0.01753119",
        "shared": true
      },
      {
        "name": "Washington Metropolitan Area Transit Authority, Series 2020 A, RB",
        "value": "5116317.00",
        "weight": "0.01499549",
        "shared": false
      },
      {
        "name": "VIRGINIA ST CLG BLDG",
        "value": "4310952.40",
        "weight": "0.01263504",
        "shared": false
      },
      {
        "name": "RIVERSIDE HEALTHCARE ASSOCIATION OBLIGATED GROUP AG 5.25% 07-01-48",
        "value": "4175078.40",
        "weight": "0.01223680",
        "shared": false
      },
      {
        "name": "Virginia Port Authority, Series 2025",
        "value": "4162214.80",
        "weight": "0.01219910",
        "shared": false
      },
      {
        "name": "Hampton Roads Transportation Accountability Commission, Series 2024, RB",
        "value": "4145218.40",
        "weight": "0.01214928",
        "shared": false
      },
      {
        "name": "VIRGINIA ST HSG DEV AUTH",
        "value": "4052210.40",
        "weight": "0.01187668",
        "shared": false
      },
      {
        "name": "VIRGINIA ELECTRIC AND POWER CO (MPT) 3.65% 11-01-35",
        "value": "4048550.00",
        "weight": "0.01186596",
        "shared": false
      },
      {
        "name": "City of Alexandria, Series 2025",
        "value": "4044553.26",
        "weight": "0.01185424",
        "shared": false
      },
      {
        "name": "RICHMOND REDEV HSG-FN",
        "value": "3997195.33",
        "weight": "0.01171544",
        "shared": false
      },
      {
        "name": "Washington Metropolitan Area Transit Authority, Series 2018, RB",
        "value": "3912809.82",
        "weight": "0.01146811",
        "shared": false
      },
      {
        "name": "County of Spotsylvania",
        "value": "3904738.77",
        "weight": "0.01144446",
        "shared": false
      },
      {
        "name": "Norfolk Redevelopment & Housing Authority, Series 2024",
        "value": "3882068.21",
        "weight": "0.01137801",
        "shared": false
      },
      {
        "name": "Virginia Housing Development Authority, Series 2023 D",
        "value": "3807492.00",
        "weight": "0.01115944",
        "shared": false
      },
      {
        "name": "MTRO WA DC ARPT 5.25% 10/1/48@",
        "value": "3697021.08",
        "weight": "0.01083565",
        "shared": false
      },
      {
        "name": "VA FAIDEV 4 05/15/2048",
        "value": "3674940.00",
        "weight": "0.01077094",
        "shared": false
      },
      {
        "name": "MWAA DULLES TOL 4% 10/1/2052",
        "value": "3589037.45",
        "weight": "0.01051916",
        "shared": false
      },
      {
        "name": "Virginia Resources Authority",
        "value": "3505580.54",
        "weight": "0.01027456",
        "shared": false
      },
      {
        "name": "HAMPTON ROADS VA TRANSPRTN ACCOUNTABILITY COMMISSION",
        "value": "3424960.40",
        "weight": "0.01003827",
        "shared": false
      },
      {
        "name": "New River Valley Regional Jail Authority",
        "value": "3228872.12",
        "weight": "0.00946355",
        "shared": false
      },
      {
        "name": "VIRGINIA SMALL BUSINESS FINANCING AUTHORITY",
        "value": "3158552.10",
        "weight": "0.00925745",
        "shared": true
      },
      {
        "name": "Fairfax (County of), VA Industrial Development Authority (Inova Health System), Series 2024, RB",
        "value": "3092767.50",
        "weight": "0.00906464",
        "shared": false
      },
      {
        "name": "CHESAPEAKE REDEV HSG",
        "value": "3050055.77",
        "weight": "0.00893945",
        "shared": false
      },
      {
        "name": "Fairfax County Water Authority",
        "value": "3038691.90",
        "weight": "0.00890615",
        "shared": false
      },
      {
        "name": "Hampton Roads Sanitation District, Series 2016 A, Ref. RB",
        "value": "3025379.10",
        "weight": "0.00886713",
        "shared": false
      },
      {
        "name": "Virginia Housing Development Authority, Series 2024F SUB F-3",
        "value": "3013354.50",
        "weight": "0.00883189",
        "shared": false
      },
      {
        "name": "LYNCHBURG VA ECON DEV AUTH HOSP REVENUE",
        "value": "3000458.70",
        "weight": "0.00879409",
        "shared": false
      },
      {
        "name": "Fairfax County Redevelopment & Housing Authority, Series 2024A",
        "value": "2941515.00",
        "weight": "0.00862133",
        "shared": false
      },
      {
        "name": "VIRGINIA ST SMALL BUSINESS FIN VIRGINIA SMALL BUSINESS FINANCING AUTHORITY",
        "value": "2937253.85",
        "weight": "0.00860884",
        "shared": false
      },
      {
        "name": "Arlington County Industrial Development Authority",
        "value": "2933740.32",
        "weight": "0.00859854",
        "shared": false
      },
      {
        "name": "Virginia Housing Development Authority",
        "value": "2923440.30",
        "weight": "0.00856836",
        "shared": false
      },
      {
        "name": "VIRGINIA ST SMALL BUS",
        "value": "2894089.61",
        "weight": "0.00848233",
        "shared": false
      },
      {
        "name": "Henry County Industrial Development Authority",
        "value": "2855236.20",
        "weight": "0.00836845",
        "shared": false
      },
      {
        "name": "CHESAPEAKE BRDG 5% 7/1/2051",
        "value": "2854426.20",
        "weight": "0.00836608",
        "shared": false
      },
      {
        "name": "HAMPTON ROADS TRANSPORTATION FUND 5.0% 07-01-54",
        "value": "2834071.91",
        "weight": "0.00830642",
        "shared": false
      },
      {
        "name": "City of Petersburg, Series 2024",
        "value": "2783439.90",
        "weight": "0.00815803",
        "shared": false
      },
      {
        "name": "VIRGINIA ST CMWLTH TRANSPRTN BRD TRANSPRTN REVENUE",
        "value": "2773881.83",
        "weight": "0.00813001",
        "shared": false
      },
      {
        "name": "MWAA DULLES TOL 4% 10/1/2044",
        "value": "2731648.50",
        "weight": "0.00800623",
        "shared": false
      },
      {
        "name": "VIRGINIA ST HSG DEV AUTH REGD B/E 5.15000000",
        "value": "2711923.09",
        "weight": "0.00794842",
        "shared": false
      },
      {
        "name": "Virginia Housing Development Authority",
        "value": "2696737.20",
        "weight": "0.00790391",
        "shared": false
      },
      {
        "name": "NORFOLK VA ECON DEV AUTH HOSPF NORMED 11/48 FIXED 4",
        "value": "2695011.00",
        "weight": "0.00789885",
        "shared": false
      },
      {
        "name": "VIRGINIA ST SMALL BUSINESS FIN VASMED 06/55 FIXED 5.25",
        "value": "2554395.25",
        "weight": "0.00748672",
        "shared": false
      },
      {
        "name": "UNIVERSITY OF VIRGINIA",
        "value": "2526072.00",
        "weight": "0.00740370",
        "shared": false
      },
      {
        "name": "Virginia Housing Development Authority",
        "value": "2525592.44",
        "weight": "0.00740230",
        "shared": false
      },
      {
        "name": "Virginia Housing Development Authority",
        "value": "2496274.53",
        "weight": "0.00731637",
        "shared": false
      },
      {
        "name": "VIRGINIA ST RESOURCES AUTH INFRASTRUCTURE REVENUE",
        "value": "2486125.40",
        "weight": "0.00728662",
        "shared": false
      },
      {
        "name": "MWAA DULLES TOL 4% 10/1/2053",
        "value": "2418899.48",
        "weight": "0.00708959",
        "shared": false
      },
      {
        "name": "VIRGINIA ST SMALL BUSINESS FIN REGD OID B/E AMT 3.00000000",
        "value": "2407733.40",
        "weight": "0.00705686",
        "shared": true
      },
      {
        "name": "City of Alexandria, Series 2025",
        "value": "2363118.58",
        "weight": "0.00692610",
        "shared": false
      }
    ],
    "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",
        "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": 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
      },
      {
        "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",
        "weight": "0.00926923",
        "shared": false
      },
      {
        "name": "Clemson University",
        "value": "2222282.10",
        "weight": "0.00926059",
        "shared": false
      },
      {
        "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",
        "weight": "0.00869491",
        "shared": false
      },
      {
        "name": "Clemson University, Series 2025A",
        "value": "2082896.00",
        "weight": "0.00867975",
        "shared": false
      },
      {
        "name": "SOUTH CAROLINA ST PUBLIC SVC AUTH REVENUE",
        "value": "2079001.17",
        "weight": "0.00866352",
        "shared": false
      },
      {
        "name": "City of Charleston Waterworks & Sewer System Revenue",
        "value": "2076405.20",
        "weight": "0.00865270",
        "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",
        "weight": "0.00860190",
        "shared": false
      },
      {
        "name": "South Carolina (State of) Jobs-Economic Development Authority (Prisma Health Obligated Group), Series 2018, RB",
        "value": "2056628.00",
        "weight": "0.00857029",
        "shared": false
      },
      {
        "name": "SOUTH CAROLINA ST PUBLIC SVC AUTH REVENUE",
        "value": "2053265.00",
        "weight": "0.00855627",
        "shared": false
      },
      {
        "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",
        "shared": false
      },
      {
        "name": "Corp. ForGreer, Series 2025",
        "value": "2040564.80",
        "weight": "0.00850335",
        "shared": false
      },
      {
        "name": "CHARLSTN SC ARP 5.25% 7/1/2054",
        "value": "2034773.20",
        "weight": "0.00847921",
        "shared": false
      },
      {
        "name": "Spartanburg County School District No. 7",
        "value": "2030795.80",
        "weight": "0.00846264",
        "shared": false
      },
      {
        "name": "County of Horry",
        "value": "2029676.40",
        "weight": "0.00845797",
        "shared": false
      },
      {
        "name": "SOUTH CAROLINA ST HSG FIN & DEV AUTH MTGE REVENUE",
        "value": "2022353.50",
        "weight": "0.00842746",
        "shared": false
      },
      {
        "name": "South Carolina Jobs-Economic Development Authority, Series 2025",
        "value": "2020207.80",
        "weight": "0.00841852",
        "shared": false
      },
      {
        "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",
        "weight": "0.00836588",
        "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
      },
      {
        "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",
        "shared": false
      },
      {
        "name": "HORRY CNTY S C 4.50% 9/1/2052",
        "value": "1901860.60",
        "weight": "0.00792535",
        "shared": false
      },
      {
        "name": "College of Charleston, Series 2025A",
        "value": "1896887.40",
        "weight": "0.00790462",
        "shared": false
      },
      {
        "name": "BEAUFORT CNTY 4% 3/1/2048",
        "value": "1896257.00",
        "weight": "0.00790200",
        "shared": false
      },
      {
        "name": "South Island Public Service District",
        "value": "1888969.80",
        "weight": "0.00787163",
        "shared": false
      },
      {
        "name": "SOUTH CAROLINA ST JOBS-ECON DEV AUTH HOSP REVENUE",
        "value": "1885043.80",
        "weight": "0.00785527",
        "shared": false
      }
    ]
  },
  "error": null,
  "sources": [
    {
      "label": "N-PORT (fund A)",
      "accession_no": "0002071691-26-011426",
      "as_of": "2026-03-31",
      "edgar_url": "https://www.sec.gov/Archives/edgar/data/751656/000207169126011426/0002071691-26-011426-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"
    }
  ]
}