{
  "page": "compare",
  "query": {
    "a": "FASLX",
    "b": "FDMMX"
  },
  "retrieved_at": "2026-07-07T15:27:00+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": "Fidelity Sustainable Intermediate Municipal Income Fund",
    "ticker": "FASLX",
    "slug": "FASLX",
    "series_id": "S000075893",
    "html_url": "https://fundwatcher.app/funds/FASLX/"
  },
  "fund_b": {
    "name": "Fidelity Massachusetts Municipal Income Fund",
    "ticker": "FDMMX",
    "slug": "FDMMX",
    "series_id": "S000007114",
    "html_url": "https://fundwatcher.app/funds/FDMMX/"
  },
  "overlap": {
    "coverage_a_by_b": "0.06193724576280076885286335489",
    "coverage_b_by_a": "0.06193724576280076885286335489",
    "shared_count": 5,
    "as_of": {
      "a": "2026-01-31",
      "b": "2026-01-31"
    },
    "a_top": [
      {
        "name": "Fidelity Municipal Cash Central Fund",
        "value": "1553908.15",
        "weight": "0.05876032",
        "shared": true
      },
      {
        "name": "CT SPEC TAX 5% 7/1/2034",
        "value": "553162.51",
        "weight": "0.02091759",
        "shared": false
      },
      {
        "name": "DALLAS TX 5% 2/15/2031",
        "value": "353888.99",
        "weight": "0.01338215",
        "shared": false
      },
      {
        "name": "VAUXMONT METROPOLITAN DISTRICT AG 5.0% 12-01-28",
        "value": "344954.09",
        "weight": "0.01304428",
        "shared": false
      },
      {
        "name": "CLEAR CREEK TX INDEP SCH DIST REGD B/E PSF-GTD 5.00000000",
        "value": "344145.99",
        "weight": "0.01301372",
        "shared": false
      },
      {
        "name": "TOMBALL TX ISD 5% 2/15/2038",
        "value": "341612.25",
        "weight": "0.01291791",
        "shared": false
      },
      {
        "name": "LOS ANGELES CA DEPT OF ARPTS ARPT REVENUE",
        "value": "334113.06",
        "weight": "0.01263433",
        "shared": false
      },
      {
        "name": "TRAVI TX 89439Y 5% 3/1/2027",
        "value": "308398.62",
        "weight": "0.01166195",
        "shared": false
      },
      {
        "name": "ALLEGHENY CO PA 5% 12/1/2026",
        "value": "270799.92",
        "weight": "0.01024017",
        "shared": false
      },
      {
        "name": "City of Atlanta Department of Aviation, Series 2025BB-1",
        "value": "270748.25",
        "weight": "0.01023822",
        "shared": false
      },
      {
        "name": "ILLINOIS FINANC 5% 10/1/2029",
        "value": "270088.03",
        "weight": "0.01021326",
        "shared": false
      },
      {
        "name": "ARLINGTON MA 2% 9/15/2034",
        "value": "251346.07",
        "weight": "0.00950454",
        "shared": false
      },
      {
        "name": "BOSTON MA W and S 3% 11/1/2033",
        "value": "249106.08",
        "weight": "0.00941983",
        "shared": false
      },
      {
        "name": "ILLINOIS ST FIN AUTH REVENUE REGD N/C B/E 5.00000000",
        "value": "237577.80",
        "weight": "0.00898390",
        "shared": false
      },
      {
        "name": "State of California",
        "value": "236624.24",
        "weight": "0.00894784",
        "shared": false
      },
      {
        "name": "WAKE CNTY LTD O 5% 5/1/2036",
        "value": "235787.76",
        "weight": "0.00891621",
        "shared": false
      },
      {
        "name": "NJ TRANSPRTN TRUST-CC",
        "value": "233951.52",
        "weight": "0.00884677",
        "shared": false
      },
      {
        "name": "WA ST UNIV-REF",
        "value": "220389.26",
        "weight": "0.00833392",
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      },
      {
        "name": "Southeast Energy Authority, Alabama, Revenue Bonds Cooperative District Energy Supply Series 2024C",
        "value": "215819.92",
        "weight": "0.00816113",
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      },
      {
        "name": "Los Angeles Department of Water & Power Water System, Series 2025 C",
        "value": "214545.22",
        "weight": "0.00811293",
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      },
      {
        "name": "DENTON TX ISD-SER B2",
        "value": "212869.46",
        "weight": "0.00804956",
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      {
        "name": "UNIV TX 2% 8/15/2036",
        "value": "211639.53",
        "weight": "0.00800305",
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      },
      {
        "name": "ESCAMBIA FL HSP 5% 8/15/2034",
        "value": "211189.82",
        "weight": "0.00798605",
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      },
      {
        "name": "PORT OF LOS ANGELES LOSTRN 08/38 FIXED 5",
        "value": "207148.09",
        "weight": "0.00783321",
        "shared": false
      },
      {
        "name": "Southeast Energy Authority A Cooperative District, Series 2025A",
        "value": "201052.07",
        "weight": "0.00760269",
        "shared": false
      },
      {
        "name": "GA PWR - SOUTHERN CO 18-1 V1",
        "value": "200000.00",
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      },
      {
        "name": "GARLAND TEX 5% 2/15/2038",
        "value": "198743.88",
        "weight": "0.00751541",
        "shared": false
      },
      {
        "name": "GREAT LAKES WTR 5.25% 7/1/2045",
        "value": "190350.88",
        "weight": "0.00719803",
        "shared": false
      },
      {
        "name": "FAIRFAX C VA 5% 1/1/2045 MT",
        "value": "185452.49",
        "weight": "0.00701280",
        "shared": false
      },
      {
        "name": "SALT VERDE FINL CORP GAS REV ARIZ SR",
        "value": "181238.11",
        "weight": "0.00685344",
        "shared": false
      },
      {
        "name": "WI ST 5% 5/1/2034 Q",
        "value": "177539.31",
        "weight": "0.00671357",
        "shared": false
      },
      {
        "name": "State of Illinois Sales Tax Revenue",
        "value": "177168.91",
        "weight": "0.00669956",
        "shared": false
      },
      {
        "name": "WAYNE ST U MI 5% 11/15/2034",
        "value": "176489.94",
        "weight": "0.00667389",
        "shared": false
      },
      {
        "name": "County of Baltimore, Series 2025",
        "value": "175873.26",
        "weight": "0.00665057",
        "shared": false
      },
      {
        "name": "TARRANT EFFC HO 5% 12/1/2035",
        "value": "174959.79",
        "weight": "0.00661602",
        "shared": false
      },
      {
        "name": "NORTH CAROLINA ST HSG FIN AGY REGD B/E GNMA/FN 6.25000000",
        "value": "172666.34",
        "weight": "0.00652930",
        "shared": false
      },
      {
        "name": "PUBLIC FIN AUTH WI HL",
        "value": "172526.96",
        "weight": "0.00652403",
        "shared": false
      },
      {
        "name": "LOS ANGELES UNIF SD-A",
        "value": "169748.06",
        "weight": "0.00641895",
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      },
      {
        "name": "GLOUCESTER IMPT 5% 7/1/2034",
        "value": "169660.55",
        "weight": "0.00641564",
        "shared": false
      },
      {
        "name": "COLORADO ST HSG & FIN AUTH",
        "value": "168829.20",
        "weight": "0.00638420",
        "shared": false
      },
      {
        "name": "CO ST HI ED COP 5% 11/1/2026",
        "value": "168096.97",
        "weight": "0.00635651",
        "shared": false
      },
      {
        "name": "ENERGY NW/WPPS 5% 7/1/2039",
        "value": "162820.49",
        "weight": "0.00615698",
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      },
      {
        "name": "MAIN STR NAT GA 5% MT",
        "value": "161975.34",
        "weight": "0.00612502",
        "shared": false
      },
      {
        "name": "SOUTHEAST ALA PREP 5% MT",
        "value": "160573.58",
        "weight": "0.00607202",
        "shared": false
      },
      {
        "name": "MISSOUR ST HS 4.90% 11/1/2045",
        "value": "153732.68",
        "weight": "0.00581333",
        "shared": false
      },
      {
        "name": "OH OHSDEV 11/01/2039",
        "value": "152398.02",
        "weight": "0.00576286",
        "shared": false
      },
      {
        "name": "NY NY CITY HS 3.625% MT",
        "value": "151637.61",
        "weight": "0.00573411",
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      },
      {
        "name": "MONTANA ST 4.65% 12/1/2046",
        "value": "150644.70",
        "weight": "0.00569656",
        "shared": false
      },
      {
        "name": "NM MFA 4.60% 9/1/2046",
        "value": "150581.51",
        "weight": "0.00569417",
        "shared": false
      },
      {
        "name": "NYS_HFA 3.375% MT",
        "value": "150040.32",
        "weight": "0.00567371",
        "shared": false
      }
    ],
    "b_top": [
      {
        "name": "Fidelity Municipal Cash Central Fund",
        "value": "143226612.28",
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        "shared": true
      },
      {
        "name": "MA ST 5% 9/1/2049",
        "value": "51634740.00",
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      },
      {
        "name": "COMMONWLTH OF 5% 12/1/2037",
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      },
      {
        "name": "MA ST 5% 11/1/52",
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      {
        "name": "MA TPK CAB-SR-SER A",
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      },
      {
        "name": "MA ST 3% 2/1/2048",
        "value": "29411442.45",
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        "shared": false
      },
      {
        "name": "MA ST 5% 11/1/2050",
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      },
      {
        "name": "MA ST 5.25% 1/1/2033",
        "value": "22804330.82",
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      },
      {
        "name": "COMMONWLTH OF 5% 12/1/2036",
        "value": "22217024.90",
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      },
      {
        "name": "MA ST TRANS REV 5% 6/1/2053",
        "value": "21065860.35",
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        "shared": false
      },
      {
        "name": "MA ST SPL OB DE 5.50% NATL/FGIC 1/1/2030",
        "value": "18998640.70",
        "weight": "0.01059077",
        "shared": false
      },
      {
        "name": "MASSACHUSETTS ST SPL OBLIG DEDICATED TAX REV FGIC",
        "value": "17373033.78",
        "weight": "0.00968458",
        "shared": false
      },
      {
        "name": "MASSACHUSETTS ST SCH BLDG AUTH SALES TAX REVENUE",
        "value": "16993639.24",
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        "shared": false
      },
      {
        "name": "MA ST 3% 4/1/2048",
        "value": "16514322.00",
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        "shared": false
      },
      {
        "name": "MA ST HSG FIN AGY-C2",
        "value": "16319780.80",
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        "shared": false
      },
      {
        "name": "MASSACHUSETTS ST PORT AUTH REGD B/E AMT 5.00000000",
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        "shared": false
      },
      {
        "name": "MA ST TRANS REV 5% 6/1/2044",
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      },
      {
        "name": "MA ST TRANS REV 5% 6/1/2042",
        "value": "16223737.41",
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        "shared": false
      },
      {
        "name": "MA ST TRANS REV 5.25% 6/1/2043",
        "value": "15121988.09",
        "weight": "0.00842974",
        "shared": false
      },
      {
        "name": "MASS DFA SOUTHCST HLTH 4% 7/43",
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      },
      {
        "name": "BOSTON MA 5% 2/1/2039",
        "value": "14482498.67",
        "weight": "0.00807325",
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      },
      {
        "name": "MA CL WTR TR 5% 2/1/2039",
        "value": "14100366.03",
        "weight": "0.00786024",
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      },
      {
        "name": "MASSACHUSETTS ST DEV FIN AGY REVENUE",
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      },
      {
        "name": "MA TPK CAB-SR-SER A",
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      },
      {
        "name": "MASSACHUSETTS ST SCH BLDG AUTH SALES TAX REVENUE",
        "value": "11878315.40",
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      },
      {
        "name": "MA PORT 5% 7/1/2038@",
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      },
      {
        "name": "MA ST 5% 7/1/2048",
        "value": "11373802.34",
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      },
      {
        "name": "MBTA SLS TAX 5.25% 7/1/2052",
        "value": "11185375.86",
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      },
      {
        "name": "MASS DEV FIN AGY-K",
        "value": "10965538.40",
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      },
      {
        "name": "MA ED LN AUTH 5% 7/1/2030 @",
        "value": "10650113.00",
        "weight": "0.00593690",
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      },
      {
        "name": "MA ST 5% 1/1/2037",
        "value": "10611102.00",
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      },
      {
        "name": "MA DFA 5% 4/1/2033",
        "value": "10515874.82",
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      },
      {
        "name": "MA ED LN AUTH 5% 7/1/2027 @",
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      },
      {
        "name": "MASSACHUSETTS ST SCH BLDG AUTH SALES TAX REVENUE",
        "value": "10426034.00",
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      },
      {
        "name": "MA ST 3% 4/1/2049",
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      },
      {
        "name": "MA ST 5% 1/1/2049",
        "value": "10193978.00",
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      },
      {
        "name": "MA ST HSG FIN A 3.15% 6/1/2030",
        "value": "10077888.00",
        "weight": "0.00561791",
        "shared": false
      },
      {
        "name": "Massachusetts (Commonwealth of), Series 2024, GO Bonds",
        "value": "9202876.00",
        "weight": "0.00513013",
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      },
      {
        "name": "MA ST TRANS REV 5% 6/1/2041",
        "value": "8759752.74",
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      },
      {
        "name": "MASSACHUSETTS ST PORT AUTH SPL FACS REVENUE",
        "value": "8740116.88",
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      },
      {
        "name": "MA ST 5% 11/1/2043",
        "value": "8694969.34",
        "weight": "0.00484700",
        "shared": false
      },
      {
        "name": "Massachusetts Development Finance Agency, Series 2024 U-1",
        "value": "8500000.00",
        "weight": "0.00473832",
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      },
      {
        "name": "MBTA SLS TAX 5.25% 7/1/2053",
        "value": "8428056.80",
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      },
      {
        "name": "MA ST TRANS REV 5% 6/1/2047",
        "value": "8374790.40",
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      },
      {
        "name": "MA WTR 5% 8/1/42",
        "value": "7886186.92",
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      },
      {
        "name": "MASSACHUSETTS ST DEV FIN AGY REVENUE",
        "value": "7871510.25",
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      },
      {
        "name": "MA ST TRANS REV 5% 6/1/2048",
        "value": "7670975.24",
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      },
      {
        "name": "MBTA SLS TAX 0% 7/1/2032",
        "value": "7636143.67",
        "weight": "0.00425676",
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      },
      {
        "name": "MA CL WTR TR 5% 2/1/2037",
        "value": "7617426.70",
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        "shared": false
      },
      {
        "name": "MASS DEVEL FIN 4% 7/1/2040",
        "value": "7458423.98",
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        "shared": false
      }
    ]
  },
  "error": null,
  "sources": [
    {
      "label": "N-PORT (fund A)",
      "accession_no": "0000035402-26-002117",
      "as_of": "2026-01-31",
      "edgar_url": "https://www.sec.gov/Archives/edgar/data/35315/000003540226002117/0000035402-26-002117-index.htm"
    },
    {
      "label": "N-PORT (fund B)",
      "accession_no": "0000035402-26-002005",
      "as_of": "2026-01-31",
      "edgar_url": "https://www.sec.gov/Archives/edgar/data/357057/000003540226002005/0000035402-26-002005-index.htm"
    }
  ]
}