{
  "page": "compare",
  "query": {
    "a": "FSMNX",
    "b": "FSAJX"
  },
  "retrieved_at": "2026-07-07T18:08:25+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 SAI Municipal Income Fund",
    "ticker": "FSMNX",
    "slug": "FSMNX",
    "series_id": "S000062002",
    "html_url": "https://fundwatcher.app/funds/FSMNX/"
  },
  "fund_b": {
    "name": "Fidelity SAI Tax-Free Bond Fund",
    "ticker": "FSAJX",
    "slug": "FSAJX",
    "series_id": "S000062003",
    "html_url": "https://fundwatcher.app/funds/FSAJX/"
  },
  "overlap": {
    "coverage_a_by_b": "0.2750908167904417531190587192",
    "coverage_b_by_a": "0.2750908167904417531190587192",
    "shared_count": 455,
    "as_of": {
      "a": "2026-03-31",
      "b": "2026-01-31"
    },
    "a_top": [
      {
        "name": "Fidelity Municipal Cash Central Fund",
        "value": "271252453.09",
        "weight": "0.07778582",
        "shared": false
      },
      {
        "name": "SOUTHEAST ENERGY-E",
        "value": "42808796.53",
        "weight": "0.01227608",
        "shared": true
      },
      {
        "name": "TN MNVAPT 5.25 07/01/2051",
        "value": "36009939.00",
        "weight": "0.01032641",
        "shared": false
      },
      {
        "name": "Black Belt Energy Gas District",
        "value": "32106449.60",
        "weight": "0.00920702",
        "shared": false
      },
      {
        "name": "NJ TRANSPRTN TRUST-BB",
        "value": "26073607.50",
        "weight": "0.00747701",
        "shared": false
      },
      {
        "name": "NY MTA TRANSP 5% 11/15/2033",
        "value": "25919191.28",
        "weight": "0.00743273",
        "shared": false
      },
      {
        "name": "BLACK BELT ENERGY GAS VAR",
        "value": "22743878.79",
        "weight": "0.00652216",
        "shared": true
      },
      {
        "name": "NYS TWY PIT 5% 3/15/2042",
        "value": "21848290.00",
        "weight": "0.00626533",
        "shared": true
      },
      {
        "name": "MUNIBOND",
        "value": "20290194.13",
        "weight": "0.00581853",
        "shared": true
      },
      {
        "name": "TN TNSUTL 5 12/01/2035",
        "value": "18423704.64",
        "weight": "0.00528328",
        "shared": true
      },
      {
        "name": "MUNIBOND",
        "value": "18195123.62",
        "weight": "0.00521773",
        "shared": false
      },
      {
        "name": "California Community Choice Financing Authority",
        "value": "18073512.42",
        "weight": "0.00518286",
        "shared": false
      },
      {
        "name": "LOWER AL GAS DT-A-REF",
        "value": "17818624.82",
        "weight": "0.00510977",
        "shared": true
      },
      {
        "name": "NY CITY TRANS FIN-F-1",
        "value": "17467162.53",
        "weight": "0.00500898",
        "shared": true
      },
      {
        "name": "MAIN STR NAT GA 4% 07/01/2052 MT",
        "value": "16919819.49",
        "weight": "0.00485202",
        "shared": true
      },
      {
        "name": "NYC WTR 5.50% 6/15/2056",
        "value": "16222416.99",
        "weight": "0.00465203",
        "shared": true
      },
      {
        "name": "North Carolina Turnpike Authority, Series A",
        "value": "16096096.83",
        "weight": "0.00461580",
        "shared": false
      },
      {
        "name": "Southeast Energy Authority, Alabama, Revenue Bonds Cooperative District Energy Supply Series 2024C",
        "value": "15751692.40",
        "weight": "0.00451704",
        "shared": true
      },
      {
        "name": "CALIFORNIA COMMUNITY VAR",
        "value": "15701338.33",
        "weight": "0.00450260",
        "shared": true
      },
      {
        "name": "Black Belt Energy Gas District (The) (Gas), Series 2022 F, RB",
        "value": "15700264.50",
        "weight": "0.00450229",
        "shared": false
      },
      {
        "name": "Miami-Dade (County of), FL, Series 2025 A, RB",
        "value": "15597376.50",
        "weight": "0.00447279",
        "shared": false
      },
      {
        "name": "NY NYCGEN 5.5 02/01/2048",
        "value": "15276016.08",
        "weight": "0.00438063",
        "shared": true
      },
      {
        "name": "TN TNSUTL 5 11/01/2034",
        "value": "15173698.43",
        "weight": "0.00435129",
        "shared": true
      },
      {
        "name": "W VIRGINIA ST H-SER B",
        "value": "14947136.07",
        "weight": "0.00428632",
        "shared": true
      },
      {
        "name": "WA ST 5% 2/1/2030",
        "value": "13840622.61",
        "weight": "0.00396901",
        "shared": false
      },
      {
        "name": "NY STATE UR D 5% 3/15/2040",
        "value": "12863248.80",
        "weight": "0.00368873",
        "shared": false
      },
      {
        "name": "CHICAGO IL BRD OF EDU REGD OID B/E 6.00000000",
        "value": "12774007.50",
        "weight": "0.00366314",
        "shared": false
      },
      {
        "name": "SAN ANTONIO TX ELEC   GAS REVE SANUTL 02/49 FIXED 5.25",
        "value": "12226734.20",
        "weight": "0.00350620",
        "shared": true
      },
      {
        "name": "SAN ANTONIO TX ELEC & GAS REVENUE",
        "value": "12170568.30",
        "weight": "0.00349010",
        "shared": true
      },
      {
        "name": "FAYETTE COUNTY 5.25% 6/1/2044",
        "value": "11955302.13",
        "weight": "0.00342837",
        "shared": true
      },
      {
        "name": "CALIFORNIA COMMUNITY VAR",
        "value": "11697706.09",
        "weight": "0.00335450",
        "shared": true
      },
      {
        "name": "Pima County Industrial Development Authority, Arizona, Revenue Bonds, Tucson Medical Center, Series 2021A",
        "value": "11278653.75",
        "weight": "0.00323433",
        "shared": false
      },
      {
        "name": "NYC WTR 5.25% 6/15/2047",
        "value": "11119267.61",
        "weight": "0.00318862",
        "shared": false
      },
      {
        "name": "HOUSTON TX REGD B/E 5.25000000",
        "value": "11099646.85",
        "weight": "0.00318299",
        "shared": true
      },
      {
        "name": "New York City Transitional Finance Authority Future Tax Secured Revenue, Series 2025, RB",
        "value": "10837320.68",
        "weight": "0.00310777",
        "shared": false
      },
      {
        "name": "NE CENPWR 08/01/2055",
        "value": "10813070.88",
        "weight": "0.00310081",
        "shared": true
      },
      {
        "name": "FEDERAL HOME LOAN MTGE CORP MF REGD N/C V/R B/E 4.77310000",
        "value": "10798990.80",
        "weight": "0.00309678",
        "shared": false
      },
      {
        "name": "SALES TAX SECURITIZTN",
        "value": "10676544.86",
        "weight": "0.00306166",
        "shared": true
      },
      {
        "name": "NYS DORM PIT 5% 3/15/2047",
        "value": "10615738.99",
        "weight": "0.00304423",
        "shared": false
      },
      {
        "name": "OHIO ST UNIV GR 5.25% 12/1/2046",
        "value": "10607026.00",
        "weight": "0.00304173",
        "shared": false
      },
      {
        "name": "PORT NY NJ 5% 1/15/2047 @",
        "value": "10594964.55",
        "weight": "0.00303827",
        "shared": false
      },
      {
        "name": "Southeast Energy Authority, Alabama, Revenue Bonds, Cooperative District Energy Supply Series 2025B",
        "value": "10510298.93",
        "weight": "0.00301399",
        "shared": true
      },
      {
        "name": "SOUTHEAST ENERGY-D",
        "value": "10488013.37",
        "weight": "0.00300760",
        "shared": true
      },
      {
        "name": "NYC TRANSITIONAL-J-1",
        "value": "10453037.47",
        "weight": "0.00299757",
        "shared": true
      },
      {
        "name": "CASTAIC LK WTR AMBAC 0% 8/1/2026",
        "value": "10356296.88",
        "weight": "0.00296983",
        "shared": false
      },
      {
        "name": "MA ST TRANS REV 5% 6/1/52",
        "value": "10266268.00",
        "weight": "0.00294401",
        "shared": false
      },
      {
        "name": "CHICAGO IL BRD OF EDU",
        "value": "9816297.58",
        "weight": "0.00281497",
        "shared": true
      },
      {
        "name": "COLUMBUS REGL ARPT-A",
        "value": "9724859.08",
        "weight": "0.00278875",
        "shared": false
      },
      {
        "name": "MASSACHUSETTS ST DEV FIN AGY S REGD OID B/E 6.50000000",
        "value": "9444602.27",
        "weight": "0.00270839",
        "shared": true
      },
      {
        "name": "NJ TPK 5% 1/1/2030",
        "value": "9438431.91",
        "weight": "0.00270662",
        "shared": false
      }
    ],
    "b_top": [
      {
        "name": "Fidelity Tax-Free Cash Central Fund",
        "value": "540653255.28",
        "weight": "0.10034165",
        "shared": false
      },
      {
        "name": "SOUTHEAST ENERGY-E",
        "value": "70109510.15",
        "weight": "0.01301186",
        "shared": true
      },
      {
        "name": "WISCONSIN ST HLTH & EDUCTNL FACS AUTH REVENUE",
        "value": "40634458.99",
        "weight": "0.00754149",
        "shared": false
      },
      {
        "name": "MUNIBOND",
        "value": "31117324.73",
        "weight": "0.00577517",
        "shared": true
      },
      {
        "name": "TN TNSUTL 5 12/01/2035",
        "value": "30982600.28",
        "weight": "0.00575016",
        "shared": true
      },
      {
        "name": "MAIN STR NAT GA 4% 07/01/2052 MT",
        "value": "28672033.20",
        "weight": "0.00532134",
        "shared": true
      },
      {
        "name": "NJ TPK AUTH-B",
        "value": "28493050.00",
        "weight": "0.00528812",
        "shared": false
      },
      {
        "name": "LOWER AL GAS DT-A-REF",
        "value": "27999615.05",
        "weight": "0.00519654",
        "shared": true
      },
      {
        "name": "WISCONSIN ST HLTH & EDUCTNL FACS AUTH REVENUE",
        "value": "26101383.89",
        "weight": "0.00484424",
        "shared": false
      },
      {
        "name": "CALIFORNIA COMMUNITY VAR",
        "value": "25571618.65",
        "weight": "0.00474592",
        "shared": true
      },
      {
        "name": "NYC WTR 5.50% 6/15/2056",
        "value": "25398095.00",
        "weight": "0.00471372",
        "shared": true
      },
      {
        "name": "TN TNSUTL 5 11/01/2034",
        "value": "23277229.13",
        "weight": "0.00432010",
        "shared": true
      },
      {
        "name": "WA ST HLTH CAR 5% MT",
        "value": "22867461.41",
        "weight": "0.00424405",
        "shared": false
      },
      {
        "name": "BLACK BELT ENERGY GAS VAR",
        "value": "22787883.94",
        "weight": "0.00422928",
        "shared": true
      },
      {
        "name": "NYS TWY PIT 5% 3/15/2042",
        "value": "22327772.00",
        "weight": "0.00414389",
        "shared": true
      },
      {
        "name": "MA ST 5.25% 10/1/2047",
        "value": "21260340.00",
        "weight": "0.00394578",
        "shared": false
      },
      {
        "name": "Southeast Energy Authority, Alabama, Revenue Bonds Cooperative District Energy Supply Series 2024C",
        "value": "20918345.75",
        "weight": "0.00388231",
        "shared": true
      },
      {
        "name": "CENTRL VLY CA ENERGY AUTH COMM REGD V/R B/E 5.00000000",
        "value": "20604777.10",
        "weight": "0.00382411",
        "shared": false
      },
      {
        "name": "CA ST 5% 9/1/2034",
        "value": "20596271.61",
        "weight": "0.00382253",
        "shared": false
      },
      {
        "name": "CHICAGO IL BRD OF EDU REGD B/E 6.25000000",
        "value": "20139901.91",
        "weight": "0.00373783",
        "shared": true
      },
      {
        "name": "TARRANT TX EDFC 5% MT",
        "value": "19047763.91",
        "weight": "0.00353514",
        "shared": false
      },
      {
        "name": "HOUSTON TX REGD B/E 5.25000000",
        "value": "19011604.54",
        "weight": "0.00352843",
        "shared": true
      },
      {
        "name": "NY ST HSG FIN-F-2",
        "value": "18650141.93",
        "weight": "0.00346134",
        "shared": false
      },
      {
        "name": "CALIFORNIA COMMUNITY VAR",
        "value": "17754605.50",
        "weight": "0.00329514",
        "shared": true
      },
      {
        "name": "NY NYCGEN 5.5 02/01/2048",
        "value": "17424369.40",
        "weight": "0.00323385",
        "shared": true
      },
      {
        "name": "NEW YORK ST DO 5% 3/15/2041",
        "value": "17366313.16",
        "weight": "0.00322307",
        "shared": false
      },
      {
        "name": "SAN ANTONIO TX ELEC & GAS REVENUE",
        "value": "17285632.47",
        "weight": "0.00320810",
        "shared": false
      },
      {
        "name": "NY ST HSG FIN AGY-E",
        "value": "16581082.65",
        "weight": "0.00307734",
        "shared": false
      },
      {
        "name": "BATTERY PK REV 5.25% 11/1/55",
        "value": "16472569.96",
        "weight": "0.00305720",
        "shared": false
      },
      {
        "name": "MT. LOUIS/JEFF HLTH 5% MT",
        "value": "16307779.93",
        "weight": "0.00302662",
        "shared": true
      },
      {
        "name": "NY TRANS FIN AUTH-C",
        "value": "16285632.32",
        "weight": "0.00302251",
        "shared": false
      },
      {
        "name": "NY ST HSG FIN AGY D-2",
        "value": "16267070.81",
        "weight": "0.00301906",
        "shared": false
      },
      {
        "name": "SOUTHEAST ENERGY-D",
        "value": "15881407.98",
        "weight": "0.00294748",
        "shared": true
      },
      {
        "name": "SAN ANTONIO TX ELEC   GAS REVE SANUTL 02/49 FIXED 5.25",
        "value": "15867282.85",
        "weight": "0.00294486",
        "shared": true
      },
      {
        "name": "WA ST HLTH CAR 5% MT",
        "value": "15552334.68",
        "weight": "0.00288641",
        "shared": false
      },
      {
        "name": "LOS ANGELES WTR-A-REF",
        "value": "15523688.50",
        "weight": "0.00288109",
        "shared": true
      },
      {
        "name": "SAN ANTONIO TX ELEC & GAS REVENUE",
        "value": "15486168.77",
        "weight": "0.00287413",
        "shared": false
      },
      {
        "name": "NE CENPWR 08/01/2055",
        "value": "15366755.72",
        "weight": "0.00285197",
        "shared": true
      },
      {
        "name": "MASSACHUSETTS ST DEV FIN AGY S REGD OID B/E 6.50000000",
        "value": "14917378.18",
        "weight": "0.00276857",
        "shared": true
      },
      {
        "name": "MAIN STR NAT GA 5% MT",
        "value": "14905238.87",
        "weight": "0.00276631",
        "shared": true
      },
      {
        "name": "Southeast Energy Authority, Alabama, Revenue Bonds, Cooperative District Energy Supply Series 2025B",
        "value": "14758219.41",
        "weight": "0.00273903",
        "shared": true
      },
      {
        "name": "NYC TRANSITIONAL-G-1",
        "value": "14584835.20",
        "weight": "0.00270685",
        "shared": false
      },
      {
        "name": "NY TRANSITIONAL FIN-B",
        "value": "14574046.51",
        "weight": "0.00270485",
        "shared": false
      },
      {
        "name": "NYC TRANSITIONAL-H-1",
        "value": "14415183.63",
        "weight": "0.00267536",
        "shared": false
      },
      {
        "name": "STATE OF NEW JERSEY 5.0% 06-15-40",
        "value": "14351995.38",
        "weight": "0.00266363",
        "shared": false
      },
      {
        "name": "State of New Jersey, Series 2020A",
        "value": "14074089.90",
        "weight": "0.00261206",
        "shared": false
      },
      {
        "name": "NYC TRANSITIONAL-C-1",
        "value": "14062395.65",
        "weight": "0.00260989",
        "shared": false
      },
      {
        "name": "NY ST DORM AUTH PIT 22A 5.0% 03-15-41",
        "value": "13973323.87",
        "weight": "0.00259336",
        "shared": true
      },
      {
        "name": "PHILA PA 5% 8/1/2030",
        "value": "13972475.19",
        "weight": "0.00259320",
        "shared": false
      },
      {
        "name": "GEORGIA POWER CO (MPT) 2.9% 12-01-49",
        "value": "13957259.40",
        "weight": "0.00259037",
        "shared": false
      }
    ]
  },
  "error": null,
  "sources": [
    {
      "label": "N-PORT (fund A)",
      "accession_no": "0000035402-26-003416",
      "as_of": "2026-03-31",
      "edgar_url": "https://www.sec.gov/Archives/edgar/data/35315/000003540226003416/0000035402-26-003416-index.htm"
    },
    {
      "label": "N-PORT (fund B)",
      "accession_no": "0000035402-26-002082",
      "as_of": "2026-01-31",
      "edgar_url": "https://www.sec.gov/Archives/edgar/data/35315/000003540226002082/0000035402-26-002082-index.htm"
    }
  ]
}