{
  "page": "compare",
  "query": {
    "a": "DMUAX",
    "b": "MFIAX"
  },
  "retrieved_at": "2026-07-07T19:23:11+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": "BNY Mellon AMT-Free Municipal Bond Fund",
    "ticker": "DMUAX",
    "slug": "DMUAX",
    "series_id": "S000000330",
    "html_url": "https://fundwatcher.app/funds/DMUAX/"
  },
  "fund_b": {
    "name": "MFS Municipal Income Fund",
    "ticker": "MFIAX",
    "slug": "MFIAX",
    "series_id": "S000002536",
    "html_url": "https://fundwatcher.app/funds/MFIAX/"
  },
  "overlap": {
    "coverage_a_by_b": "0.05071733291360392166791183698",
    "coverage_b_by_a": "0.05071733291360392166791183697",
    "shared_count": 81,
    "as_of": {
      "a": "2026-02-28",
      "b": "2026-03-31"
    },
    "a_top": [
      {
        "name": "SOUTHEAST ENERGY-E",
        "value": "37072780.60",
        "weight": "0.01958326",
        "shared": false
      },
      {
        "name": "Pennsylvania Turnpike Commission Oil Franchise Tax Revenue",
        "value": "22581449.27",
        "weight": "0.01192839",
        "shared": false
      },
      {
        "name": "Jefferson (County of), AL, Series 2024, Ref. Revenue Wts.",
        "value": "22280710.20",
        "weight": "0.01176952",
        "shared": true
      },
      {
        "name": "TEXAS ST MUNI GAS ACQUISITION& TEXAS MUNICIPAL GAS ACQUISITION & SUPPLY CORP IV",
        "value": "19556166.03",
        "weight": "0.01033032",
        "shared": true
      },
      {
        "name": "Public Energy Authority of Kentucky, Gas Supply Revenue Bonds, Refunding Series 2024A-1",
        "value": "17499784.86",
        "weight": "0.00924406",
        "shared": false
      },
      {
        "name": "MAIN STR NAT GA 4% 3/1/2050",
        "value": "17101469.60",
        "weight": "0.00903365",
        "shared": true
      },
      {
        "name": "New York Transportation Development Corp., Series 2025, RB",
        "value": "16809539.20",
        "weight": "0.00887944",
        "shared": false
      },
      {
        "name": "MASSACHUSETTS ST DEV FIN AGY REVENUE",
        "value": "14415286.86",
        "weight": "0.00761471",
        "shared": false
      },
      {
        "name": "BUCKEYE TOBACCO SETTLEMENT FIN BUCGEN 06/48 FIXED 4",
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        "weight": "0.00734712",
        "shared": true
      },
      {
        "name": "Port of Portland, Series 29",
        "value": "12399729.18",
        "weight": "0.00655001",
        "shared": false
      },
      {
        "name": "W VIRGINIA HOSP FIN-A",
        "value": "11828390.20",
        "weight": "0.00624821",
        "shared": false
      },
      {
        "name": "Wisconsin (State of) Health & Educational Facilities Authority (Unitypoint Health), Series 2020 A, RB",
        "value": "11570181.35",
        "weight": "0.00611181",
        "shared": false
      },
      {
        "name": "OKLAHOMA ST CAPITOL IMPT AUTH ST HIGHWAY CAP IMPT REVENUE",
        "value": "11189589.27",
        "weight": "0.00591077",
        "shared": false
      },
      {
        "name": "Wisconsin (State of) Public Finance Authority, Series 2023, RB",
        "value": "11119374.83",
        "weight": "0.00587368",
        "shared": false
      },
      {
        "name": "PORT OF SEATTLE WA REVENUE PORT OF SEATTLE WA",
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      },
      {
        "name": "Palm Beach (County of), FL Health Facilities Authority (Baptist Health South Florida), Series 2019, RB",
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      {
        "name": "UT HSRFAC 6.25 12/01/2055",
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      },
      {
        "name": "Sales Tax Securitization Corp., Series 2020A",
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      },
      {
        "name": "FL ST DFC(BRIGHTLINE FL)/AGM 5.25% 7/1/53@",
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      {
        "name": "MD MDSDEV 5.25 06/30/2055",
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      },
      {
        "name": "SOUTH CAROLINA ST PUBLIC SVC AUTH REVENUE",
        "value": "10181073.24",
        "weight": "0.00537803",
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      },
      {
        "name": "Allegheny County Higher Education Building Authority",
        "value": "10121625.92",
        "weight": "0.00534663",
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      },
      {
        "name": "CHICAGO BRD ED-B-REF",
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        "weight": "0.00524789",
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      },
      {
        "name": "Birmingham-Jefferson Civic Center Authority",
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        "weight": "0.00512449",
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      },
      {
        "name": "Public Energy Authority of Kentucky, Gas Supply Revenue Bonds, Series 2025B",
        "value": "9596825.10",
        "weight": "0.00506941",
        "shared": true
      },
      {
        "name": "NY BUIGEN 5 06/01/2036",
        "value": "9317391.13",
        "weight": "0.00492180",
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      },
      {
        "name": "Montgomery (County of), PA Industrial Development Authority (ACTS Retirement-Life Communities, Inc.), Series 2016, Ref. RB",
        "value": "9304261.76",
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      },
      {
        "name": "PUBLIC FIN AUTH WI POLL CONTRO REGD V/R B/E 3.70000000",
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        "weight": "0.00486476",
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      },
      {
        "name": "MIAMI-DADE WTSW 4% 10/1/49",
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      },
      {
        "name": "AZ INDL DEV AUTH -A",
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        "weight": "0.00469074",
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      },
      {
        "name": "WI PUBGEN 6 11/15/2045",
        "value": "8825530.64",
        "weight": "0.00466198",
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      },
      {
        "name": "TRIBOROUGH NY BRIDGE & TUNNEL AUTH REVENUES",
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        "weight": "0.00464123",
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      },
      {
        "name": "MUNI ELEC AUTH OF GA",
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        "weight": "0.00456981",
        "shared": false
      },
      {
        "name": "California Municipal Finance Authority",
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      {
        "name": "State of Illinois Sales Tax Revenue, Series 2025, RB",
        "value": "7962396.00",
        "weight": "0.00420604",
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      },
      {
        "name": "MICHIGAN ST FIN AUTH",
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        "weight": "0.00415202",
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      {
        "name": "LOS ANGELES DEPT-C",
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      },
      {
        "name": "MANSFIELD TX INDEP SCH DIST",
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      },
      {
        "name": "COLORADO ST HLTH FACS",
        "value": "7752590.62",
        "weight": "0.00409522",
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      },
      {
        "name": "Black Belt Energy Gas District, Series D",
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      },
      {
        "name": "PWR CNTY ID INDL DEV CORP SOL WST DISP REVENUE",
        "value": "7653736.34",
        "weight": "0.00404300",
        "shared": false
      },
      {
        "name": "City of Chicago IL Waterworks Revenue, Series 2024, RB",
        "value": "7543877.07",
        "weight": "0.00398496",
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      {
        "name": "NY ST THRUWAY AUTH-B",
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        "weight": "0.00396628",
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      },
      {
        "name": "Philadelphia Authority for Industrial Development",
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        "weight": "0.00394866",
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      },
      {
        "name": "TRIBOROUGH NY BRIDGE & TUNNEL AUTH PAYROLL MOBILITY TAX",
        "value": "7454042.00",
        "weight": "0.00393751",
        "shared": false
      },
      {
        "name": "RESTRUCTURED-SER A1",
        "value": "7431435.26",
        "weight": "0.00392557",
        "shared": true
      },
      {
        "name": "PUBLIC FIN AUTH WI REVENUE REGD ZCP OID B/E 0.00000000",
        "value": "7413824.65",
        "weight": "0.00391627",
        "shared": false
      },
      {
        "name": "NASHVILLE ETC CO MET",
        "value": "7246936.90",
        "weight": "0.00382811",
        "shared": false
      },
      {
        "name": "Pennsylvania Turnpike Commission, Series 2024, RB",
        "value": "7213933.35",
        "weight": "0.00381068",
        "shared": false
      },
      {
        "name": "Chicago O'Hare International Airport",
        "value": "7199697.86",
        "weight": "0.00380316",
        "shared": false
      }
    ],
    "b_top": [
      {
        "name": "MFS Institutional Money Market Portfolio, Class A",
        "value": "168421496.15",
        "weight": "0.02436056",
        "shared": false
      },
      {
        "name": "Black Belt Energy Gas District",
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      {
        "name": "TEXAS ST MUNI GAS ACQUISITION& TEXAS MUNICIPAL GAS ACQUISITION & SUPPLY CORP IV",
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      },
      {
        "name": "PRINCETON TX INDEP SCH DIST",
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        "name": "NY TRANS CORP(JFK INT NEW ONE)/AGM 5.25% 6/30/60@",
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      },
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        "name": "NY TRANS CORP(JFK INT NEW ONE)/AGM 5.13% 6/30/60@",
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      {
        "name": "New Hampshire Business Finance Authority, Series 2023A",
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        "weight": "0.00413975",
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      {
        "name": "California (State of) Community Choice Financing Authority (Green Bonds), Series 2023 C, RB",
        "value": "27756824.19",
        "weight": "0.00401476",
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      {
        "name": "BLACK BELT ENGY GAS-C",
        "value": "25083362.48",
        "weight": "0.00362807",
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      },
      {
        "name": "NOVANT HEALTH OBLIGATED GROUP 5.5% 06-01-50",
        "value": "24283162.58",
        "weight": "0.00351233",
        "shared": true
      },
      {
        "name": "PUERTO RICO SALES TAX FING COR REGD OID B/E 5.00000000",
        "value": "23202443.77",
        "weight": "0.00335601",
        "shared": false
      },
      {
        "name": "VIRGINIA ST HSG DEV AUTH",
        "value": "21825945.31",
        "weight": "0.00315691",
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      },
      {
        "name": "PENNSYLVANIA ST ECON DEV FING REGD OID B/E AMT AG 5.00000000",
        "value": "21811357.13",
        "weight": "0.00315480",
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      },
      {
        "name": "QUEEN CREEK AZ COPS",
        "value": "21660973.28",
        "weight": "0.00313305",
        "shared": false
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      {
        "name": "Connecticut State Health & Educational Facilities Authority, Series A",
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        "weight": "0.00309241",
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      },
      {
        "name": "METROCARE SVC REV",
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      },
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        "name": "NY TRANSPRTN DEV CORP",
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      },
      {
        "name": "MD HLTH HGR AUTH-A",
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      {
        "name": "WV HOSP 5.375% 9/1/2053",
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      {
        "name": "TENNERGY CORP TN GAS REVENUE TGYPWR 10/53 ADJUSTABLE VAR",
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      {
        "name": "JEA WTR & SWR REV-A",
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      {
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      {
        "name": "Delaware State Housing Authority, Series BDS 2023",
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        "weight": "0.00288233",
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      },
      {
        "name": "TX PRIVATE ACTIVITY",
        "value": "19277807.52",
        "weight": "0.00278835",
        "shared": false
      },
      {
        "name": "Energy Southeast Cooperative District, Alabama, Energy Supply Revenue Bonds, Series 2025B",
        "value": "19241087.03",
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        "shared": false
      },
      {
        "name": "Alachua County Health Facilities Authority, Series 2025 A",
        "value": "19131332.09",
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      },
      {
        "name": "Southeast Energy Authority, Alabama, Commodity Supply Revenue Bonds, Project 5, Series 2023A",
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      },
      {
        "name": "TOWER HEALTH OBLIGATED GROUP 5.0% 06-30-39",
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      },
      {
        "name": "MAIN STR NAT GA 5% MT",
        "value": "18310997.25",
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      },
      {
        "name": "SPOKANE CNTY WA ARPT REVENUE",
        "value": "18295917.76",
        "weight": "0.00264633",
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      },
      {
        "name": "BLACK BELT ENERGY GAS VAR",
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        "weight": "0.00262303",
        "shared": false
      },
      {
        "name": "CHICAGO ILLIN 6% 4/1/2046",
        "value": "17999717.26",
        "weight": "0.00260349",
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      },
      {
        "name": "California (State of) Housing Finance Agency (Social Certificates), Series 2023-1, RB",
        "value": "17903581.23",
        "weight": "0.00258958",
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      },
      {
        "name": "Fishers Town Hall Building Corp., Series 2023 A, RB",
        "value": "17353109.79",
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      },
      {
        "name": "MASSACHUSETTS ST DEV FIN AGY R REGD B/E 5.00000000",
        "value": "17214293.50",
        "weight": "0.00248988",
        "shared": false
      },
      {
        "name": "Maryland Department of Housing & Community Development, Series 2024 E",
        "value": "17179480.78",
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      {
        "name": "WISCONSIN ST HT 4% 4/1/2040",
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        "shared": false
      },
      {
        "name": "New Hampshire Business Finance Authority, Series 2024A",
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      },
      {
        "name": "PENNSYLVANIA ST ECON DEV FING REGD B/E AMT 5.00000000",
        "value": "16680576.77",
        "weight": "0.00241269",
        "shared": false
      },
      {
        "name": "Public Energy Authority of Kentucky, Gas Supply Revenue Bonds, Series 2025B",
        "value": "16505537.96",
        "weight": "0.00238737",
        "shared": true
      },
      {
        "name": "COLORADO ST HLTH FACS AUTH REV REGD B/E 4.00000000",
        "value": "16297175.41",
        "weight": "0.00235723",
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      },
      {
        "name": "ORANGE HLTH FACS-A",
        "value": "15910063.75",
        "weight": "0.00230124",
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      },
      {
        "name": "Jefferson (County of), AL, Series 2024, Ref. Revenue Wts.",
        "value": "15783655.47",
        "weight": "0.00228295",
        "shared": true
      },
      {
        "name": "SAN ANTONIO WTR 5.25% 5/15/2052",
        "value": "15584064.00",
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      },
      {
        "name": "Travis County Healthcare District",
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      },
      {
        "name": "Energy Southeast A Cooperative District, Series B-1",
        "value": "15438008.00",
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      },
      {
        "name": "MICHIGAN ST HSG DEV AUTH RENTAL HSG REVENUE",
        "value": "15431357.06",
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        "shared": false
      },
      {
        "name": "FRETE ML-15 TRUST",
        "value": "15402544.35",
        "weight": "0.00222783",
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      },
      {
        "name": "California Community Choice Financing Authority, Series C",
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      },
      {
        "name": "NY NYCDEV 5 11/15/2044",
        "value": "15300419.22",
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      }
    ]
  },
  "error": null,
  "sources": [
    {
      "label": "N-PORT (fund A)",
      "accession_no": "0000940400-26-014651",
      "as_of": "2026-02-28",
      "edgar_url": "https://www.sec.gov/Archives/edgar/data/878092/000094040026014651/0000940400-26-014651-index.htm"
    },
    {
      "label": "N-PORT (fund B)",
      "accession_no": "0002071691-26-011438",
      "as_of": "2026-03-31",
      "edgar_url": "https://www.sec.gov/Archives/edgar/data/751656/000207169126011438/0002071691-26-011438-index.htm"
    }
  ]
}