{
  "page": "compare",
  "query": {
    "a": "DMAIX",
    "b": "MFSSX"
  },
  "retrieved_at": "2026-07-07T19:10:45+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": "DWS Massachusetts Tax-Free Fund",
    "ticker": "DMAIX",
    "slug": "DMAIX",
    "series_id": "S000033433",
    "html_url": "https://fundwatcher.app/funds/DMAIX/"
  },
  "fund_b": {
    "name": "MFS Massachusetts Municipal Bond Fund",
    "ticker": "MFSSX",
    "slug": "MFSSX",
    "series_id": "S000002534",
    "html_url": "https://fundwatcher.app/funds/MFSSX/"
  },
  "overlap": {
    "coverage_a_by_b": "0.08852459092264665009835208963",
    "coverage_b_by_a": "0.08852459092264665009835208963",
    "shared_count": 26,
    "as_of": {
      "a": "2026-03-31",
      "b": "2026-03-31"
    },
    "a_top": [
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        "name": "MA WTR RES REF-BEN-B",
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        "weight": "0.03157356",
        "shared": false
      },
      {
        "name": "MASSACHUSETTS ST PORT AUTH",
        "value": "5239994.80",
        "weight": "0.02852923",
        "shared": false
      },
      {
        "name": "MA ST TRANS REV 5% 6/1/55",
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      },
      {
        "name": "MA ST 5% 7/1/2048",
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        "weight": "0.02792187",
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      },
      {
        "name": "MASSACHUSETTS ST BAY TRANSPRTN AUTH SALES TAX REVENUE",
        "value": "5051081.47",
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        "shared": false
      },
      {
        "name": "MA ST-A",
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        "shared": true
      },
      {
        "name": "MASSACHUSETTS ST WTR POLL ABATEMENT TRUST",
        "value": "4533800.98",
        "weight": "0.02468435",
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      {
        "name": "MASSACHUSETTS ST PORT AUTH SPL FACS REVENUE",
        "value": "3715112.80",
        "weight": "0.02022699",
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      {
        "name": "ATTLEBORO MA",
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        "weight": "0.01984765",
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      },
      {
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      {
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      },
      {
        "name": "UNIV OF MASSACHUSETTS MA BLDG AUTH REVENUE",
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      },
      {
        "name": "MASSACHUSETTS DEV FIN AGY NATIONAL CHRT SCH REVOLVING LOAN F",
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      {
        "name": "MASSACHUSETTS ST EDUCTNL FING REGD N/C B/E AMT 5.00000000",
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      },
      {
        "name": "MASSACHUSETTS ST PORT AUTH SPL FACS REVENUE",
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      {
        "name": "MASS DEVEL FIN 4% 7/1/2046",
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      {
        "name": "MA ST 5.25% 10/1/2047",
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      {
        "name": "MASSACHUSETTS ST PORT AUTH",
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      {
        "name": "MASSACHUSETTS ST HLTH & EDUCTN REGD V/R B/E 2.81000000",
        "value": "2600000.00",
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      },
      {
        "name": "SALEM COMMUNITY CORP OBLIGATED GROUP 5.25% 01-01-50",
        "value": "2464970.50",
        "weight": "0.01342057",
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      {
        "name": "MASSACHUSETTS ST WTR RESOURCES AUTH",
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      {
        "name": "MASSACHUSETTS ST HSG FIN AGY HSG REVENUE",
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      {
        "name": "MASS DEVEL FIN 4% 7/1/2050",
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      },
      {
        "name": "WORCESTER MA",
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        "weight": "0.01202986",
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      {
        "name": "MASSACHUSETTS ST TRANSPRTN FUND REVENUE",
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      {
        "name": "MASSACHUSETTS ST DEV FIN AGY REVENUE",
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      {
        "name": "CAMBRIDGE MA",
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      {
        "name": "MASSACHUSETTS ST DEV FIN AGY REVENUE",
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      {
        "name": "MASSACHUSETTS ST DEV FIN AGY R REGD B/E 5.00000000",
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      {
        "name": "MASSACHUSETTS ST DEV FIN AGY REVENUE",
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      {
        "name": "MASSACHUSETTS ST",
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      {
        "name": "MA ST EDU FIN AUTH-B",
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      {
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      {
        "name": "MASSACHUSETTS ST DEV FIN AGY REVENUE",
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      {
        "name": "NEWBRIDGE ON THE CHARLES INC OBLIGATED GROUP 5.0% 10-01-57",
        "value": "1890695.80",
        "weight": "0.01029392",
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      },
      {
        "name": "MASSACHUSETTS ST EDUCTNL FING MASSACHUSETTS EDUCATIONAL FINANCING AUTHORITY",
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      {
        "name": "MASSACHUSETTS ST DEV FIN AGY REVENUE",
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        "weight": "0.00958529",
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      {
        "name": "MASSACHUSETTS ST HLTH & EDUCTNL FACS AUTH REVENUE",
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      {
        "name": "MBTA SLS TAX 5.25% 7/1/2054",
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      {
        "name": "MASSACHUSETTS ST DEV FIN AGY R REGD B/E AG 5.50000000",
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      },
      {
        "name": "MASSACHUSETTS ST DEV FIN AGY REVENUE",
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        "weight": "0.00848906",
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      {
        "name": "MASSACHUSETTS ST HSG FIN AGY HSG REVENUE",
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      {
        "name": "MASSACHUSETTS ST-B",
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      {
        "name": "MA ST DEV FIN AGY-A-2",
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        "weight": "0.00833086",
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      {
        "name": "RESTRUCTURED-SER A1",
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      {
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        "weight": "0.00823765",
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      {
        "name": "MA H/E VAR-R-HARVARD",
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      },
      {
        "name": "MASSACHUSETTS ST SCH BLDG AUTH SALES TAX REVENUE",
        "value": "1460959.08",
        "weight": "0.00795421",
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      {
        "name": "MASS DEVEL FIN 5% 7/1/2044",
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    ],
    "b_top": [
      {
        "name": "MFS Institutional Money Market Portfolio, Class A",
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      {
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      {
        "name": "Commonwealth of Massachusetts Transportation Fund, Series 2025A",
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      {
        "name": "MASSACHUSETTS ST DEV FIN AGY REVENUE",
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      {
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      },
      {
        "name": "MBTA SLS TAX 5.25% 7/1/55",
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      },
      {
        "name": "MASSACHUSETTS ST",
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        "name": "MASSACHUSETTS ST SCH BLDG AUTH SALES TAX REVENUE",
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      {
        "name": "Tri-County Regional Vocational Technical School District, Series CHAPTER 70B",
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        "weight": "0.00911243",
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      },
      {
        "name": "PUERTO RICO SALES TAX FING COR REGD OID B/E 5.00000000",
        "value": "3618162.86",
        "weight": "0.00895126",
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      {
        "name": "MASSACHUSETTS ST DEV FIN AGY REVENUE",
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      {
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      {
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      {
        "name": "Massachusetts Bay Transportation Authority, Series 2025 B",
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      {
        "name": "Massachusetts Educational Financing Authority",
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        "name": "WAKEFIELD MA REGD B/E 5.00000000",
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      },
      {
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      {
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      {
        "name": "MASSACHUSETTS ST PORT AUTH",
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      {
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      {
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      {
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      {
        "name": "Massachusetts Housing Finance Agency",
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      {
        "name": "Massachusetts Port Authority, Revenue Bonds, Refunding Series 2017A",
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      },
      {
        "name": "Massachusetts (Commonwealth of), Series 2024 E, GO Bonds",
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      {
        "name": "Massachusetts Housing Finance Agency, Series 2013B",
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      {
        "name": "Massachusetts Housing Finance Agency, Series 249",
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      {
        "name": "S E ENERGY COOP DT",
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      {
        "name": "MA ST DEV FIN -J2",
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        "name": "Commonwealth of Massachusetts Transportation Fund Revenue",
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        "name": "MASSACHUSETTS ST PORT AUTH",
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      {
        "name": "MASSACHUSETTS ST DEV FIN AGY REVENUE",
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      {
        "name": "MASSACHUSETTS ST DEV FIN AGY REVENUE",
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      },
      {
        "name": "MA ST DEV FIN AGY-N",
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      },
      {
        "name": "Massachusetts Housing Finance Agency, Single Family Housing Revenue Bonds, Social Series 2024-234",
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      {
        "name": "Massachusetts Development Finance Agency",
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      },
      {
        "name": "CALIFORNIA ST HLTH FACS FING AUTH REVENUE",
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        "weight": "0.00614915",
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    ]
  },
  "error": null,
  "sources": [
    {
      "label": "N-PORT (fund A)",
      "accession_no": "0001410368-26-055425",
      "as_of": "2026-03-31",
      "edgar_url": "https://www.sec.gov/Archives/edgar/data/714287/000141036826055425/0001410368-26-055425-index.htm"
    },
    {
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    }
  ]
}