{
  "page": "compare",
  "query": {
    "a": "FSSLX",
    "b": "FSSNX"
  },
  "retrieved_at": "2026-07-07T17:32:58+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 Series Small Cap Core Fund",
    "ticker": "FSSLX",
    "slug": "FSSLX",
    "series_id": "S000077859",
    "html_url": "https://fundwatcher.app/funds/FSSLX/"
  },
  "fund_b": {
    "name": "Fidelity Small Cap Index Fund",
    "ticker": "FSSNX",
    "slug": "FSSNX",
    "series_id": "S000033638",
    "html_url": "https://fundwatcher.app/funds/FSSNX/"
  },
  "overlap": {
    "coverage_a_by_b": "0.2622448394285533848384826906",
    "coverage_b_by_a": "0.2622448394285533848384826905",
    "shared_count": 172,
    "as_of": {
      "a": "2026-01-31",
      "b": "2026-01-31"
    },
    "a_top": [
      {
        "name": "Fidelity Securities Lending Cash Central Fund",
        "value": "107131757.47",
        "weight": "0.06330261",
        "shared": true
      },
      {
        "name": "FABRINET",
        "value": "21241696.00",
        "weight": "0.01255141",
        "shared": true
      },
      {
        "name": "NEXTRACKER INC CL A",
        "value": "20334786.12",
        "weight": "0.01201553",
        "shared": true
      },
      {
        "name": "Fidelity Cash Central Fund",
        "value": "20289736.06",
        "weight": "0.01198891",
        "shared": true
      },
      {
        "name": "LAUREATE EDUCATION INC CL A",
        "value": "18082891.40",
        "weight": "0.01068492",
        "shared": true
      },
      {
        "name": "REV GROUP INC",
        "value": "16626780.00",
        "weight": "0.00982453",
        "shared": true
      },
      {
        "name": "ECHOSTAR CORP CL A",
        "value": "16382934.00",
        "weight": "0.00968044",
        "shared": true
      },
      {
        "name": "WINTRUST FINL",
        "value": "15445005.31",
        "weight": "0.00912623",
        "shared": false
      },
      {
        "name": "TTM TECHNOLOGIES INC",
        "value": "15093340.00",
        "weight": "0.00891844",
        "shared": true
      },
      {
        "name": "BRINK'S CO/THE",
        "value": "14875240.64",
        "weight": "0.00878957",
        "shared": true
      },
      {
        "name": "PERELLA WEINBERG PARTNERS",
        "value": "14539583.17",
        "weight": "0.00859123",
        "shared": true
      },
      {
        "name": "HERC HOLDINGS INC",
        "value": "14305332.00",
        "weight": "0.00845281",
        "shared": true
      },
      {
        "name": "SOLARIS OIL IN-A",
        "value": "13907880.00",
        "weight": "0.00821797",
        "shared": true
      },
      {
        "name": "NOVA LTD",
        "value": "13775947.76",
        "weight": "0.00814001",
        "shared": false
      },
      {
        "name": "MODINE MFG CO",
        "value": "13646374.00",
        "weight": "0.00806345",
        "shared": true
      },
      {
        "name": "CONSTRUCTION PARTNERS INC CL A",
        "value": "13630943.64",
        "weight": "0.00805433",
        "shared": true
      },
      {
        "name": "ADV ENERGY INDS",
        "value": "13476879.36",
        "weight": "0.00796329",
        "shared": true
      },
      {
        "name": "IES HOLDINGS INC",
        "value": "13432223.09",
        "weight": "0.00793691",
        "shared": true
      },
      {
        "name": "FIRSTCASH HOLDINGS INC",
        "value": "13017675.00",
        "weight": "0.00769196",
        "shared": true
      },
      {
        "name": "COMMUNITY FINANCIAL SYSTEM INC",
        "value": "12849437.50",
        "weight": "0.00759255",
        "shared": true
      },
      {
        "name": "WEBSTER FINL",
        "value": "12684862.59",
        "weight": "0.00749530",
        "shared": false
      },
      {
        "name": "EASTERN BANKSHARES INC",
        "value": "12280286.35",
        "weight": "0.00725624",
        "shared": true
      },
      {
        "name": "SANMINA CORP",
        "value": "12269488.00",
        "weight": "0.00724986",
        "shared": true
      },
      {
        "name": "ENSIGN GROUP INC",
        "value": "11784287.34",
        "weight": "0.00696317",
        "shared": true
      },
      {
        "name": "UNIVEST FINANCIAL CORP",
        "value": "11678801.12",
        "weight": "0.00690084",
        "shared": true
      },
      {
        "name": "CUSHMAN and WAKEFIELD LTD",
        "value": "11636084.04",
        "weight": "0.00687559",
        "shared": true
      },
      {
        "name": "STEPSTONE GROUP INC CLASS A",
        "value": "11555694.30",
        "weight": "0.00682809",
        "shared": true
      },
      {
        "name": "FIRST INTST BANCSYST INC CL A",
        "value": "11538639.29",
        "weight": "0.00681802",
        "shared": true
      },
      {
        "name": "CHORD ENERGY CORP",
        "value": "11107694.64",
        "weight": "0.00656338",
        "shared": false
      },
      {
        "name": "GRAND CANYON EDUCATION INC",
        "value": "10895248.16",
        "weight": "0.00643785",
        "shared": false
      },
      {
        "name": "LCI INDUSTRIES",
        "value": "10775554.02",
        "weight": "0.00636712",
        "shared": true
      },
      {
        "name": "ONESPAWORLD HOLDINGS LTD",
        "value": "10753423.20",
        "weight": "0.00635404",
        "shared": true
      },
      {
        "name": "STERLING INFRASTRUCTURE INC",
        "value": "10725846.88",
        "weight": "0.00633775",
        "shared": true
      },
      {
        "name": "BRADY CORPORATION CL A",
        "value": "10659416.31",
        "weight": "0.00629850",
        "shared": false
      },
      {
        "name": "CARPENTER TECHNOLOGY CORP",
        "value": "10607894.08",
        "weight": "0.00626805",
        "shared": false
      },
      {
        "name": "ATMUS FILTRATION TECHNOLOGIES INC",
        "value": "10585322.00",
        "weight": "0.00625471",
        "shared": true
      },
      {
        "name": "DIODES INC",
        "value": "10371626.94",
        "weight": "0.00612845",
        "shared": true
      },
      {
        "name": "OPTION CARE HEALTH INC",
        "value": "10366600.00",
        "weight": "0.00612547",
        "shared": true
      },
      {
        "name": "STEVEN MADDEN LTD",
        "value": "10320576.00",
        "weight": "0.00609828",
        "shared": true
      },
      {
        "name": "FIRST BANCORP/NC",
        "value": "10265196.00",
        "weight": "0.00606556",
        "shared": true
      },
      {
        "name": "GRANITE CONSTRUCTION INC",
        "value": "10178382.00",
        "weight": "0.00601426",
        "shared": true
      },
      {
        "name": "CRA INTERNATIONAL INC",
        "value": "9985479.00",
        "weight": "0.00590028",
        "shared": true
      },
      {
        "name": "BROOKFIELD INFRA",
        "value": "9982897.65",
        "weight": "0.00589875",
        "shared": true
      },
      {
        "name": "KARMAN HOLDINGS INC",
        "value": "9975180.00",
        "weight": "0.00589419",
        "shared": false
      },
      {
        "name": "AMERIS BANCORP",
        "value": "9908198.00",
        "weight": "0.00585461",
        "shared": true
      },
      {
        "name": "MACOM TECHNOLOGY SOLUTIONS HOLDINGS INC",
        "value": "9623962.98",
        "weight": "0.00568666",
        "shared": false
      },
      {
        "name": "SIGNET JEWELERS LTD",
        "value": "9586853.00",
        "weight": "0.00566473",
        "shared": true
      },
      {
        "name": "BELDEN INC",
        "value": "9518662.53",
        "weight": "0.00562444",
        "shared": true
      },
      {
        "name": "PJT PARTNERS INC",
        "value": "9463183.73",
        "weight": "0.00559166",
        "shared": true
      },
      {
        "name": "FNB CORP PA",
        "value": "9341970.30",
        "weight": "0.00552004",
        "shared": false
      }
    ],
    "b_top": [
      {
        "name": "Fidelity Securities Lending Cash Central Fund",
        "value": "2683036022.20",
        "weight": "0.08282391",
        "shared": true
      },
      {
        "name": "BLOOM ENERGY CORP CL A",
        "value": "320563212.02",
        "weight": "0.00989562",
        "shared": true
      },
      {
        "name": "CREDO TECHNOLOGY GROUP HOLDING LTD",
        "value": "186174724.32",
        "weight": "0.00574712",
        "shared": true
      },
      {
        "name": "FABRINET",
        "value": "171303510.56",
        "weight": "0.00528805",
        "shared": true
      },
      {
        "name": "KRATOS DEFENSE and SEC SOLTN INC",
        "value": "166374232.27",
        "weight": "0.00513589",
        "shared": true
      },
      {
        "name": "NEXTRACKER INC CL A",
        "value": "165501445.95",
        "weight": "0.00510894",
        "shared": true
      },
      {
        "name": "ECHOSTAR CORP CL A",
        "value": "148702015.80",
        "weight": "0.00459035",
        "shared": true
      },
      {
        "name": "HECLA MINING CO",
        "value": "138676223.28",
        "weight": "0.00428086",
        "shared": false
      },
      {
        "name": "GUARDANT HEALTH INC",
        "value": "134151980.36",
        "weight": "0.00414120",
        "shared": false
      },
      {
        "name": "IONQ INC",
        "value": "131059557.44",
        "weight": "0.00404574",
        "shared": true
      },
      {
        "name": "COEUR MINING INC",
        "value": "126782452.16",
        "weight": "0.00391371",
        "shared": true
      },
      {
        "name": "RAMBUS INC",
        "value": "118985702.19",
        "weight": "0.00367303",
        "shared": false
      },
      {
        "name": "BRIDGEBIO PHARMA INC",
        "value": "118646925.95",
        "weight": "0.00366257",
        "shared": false
      },
      {
        "name": "Fidelity Cash Central Fund",
        "value": "103833024.52",
        "weight": "0.00320527",
        "shared": true
      },
      {
        "name": "STERLING INFRASTRUCTURE INC",
        "value": "103443148.20",
        "weight": "0.00319324",
        "shared": true
      },
      {
        "name": "AEROVIRONMENT INC",
        "value": "102003487.95",
        "weight": "0.00314879",
        "shared": false
      },
      {
        "name": "DYCOM INDUSTRIES INC",
        "value": "98919131.35",
        "weight": "0.00305358",
        "shared": false
      },
      {
        "name": "TTM TECHNOLOGIES INC",
        "value": "97375218.20",
        "weight": "0.00300592",
        "shared": true
      },
      {
        "name": "SPX TECHNOLOGIES INC",
        "value": "97337056.86",
        "weight": "0.00300474",
        "shared": false
      },
      {
        "name": "MODINE MFG CO",
        "value": "93742649.00",
        "weight": "0.00289379",
        "shared": true
      },
      {
        "name": "ENSIGN GROUP INC",
        "value": "93335146.86",
        "weight": "0.00288121",
        "shared": true
      },
      {
        "name": "ADV ENERGY INDS",
        "value": "93233978.88",
        "weight": "0.00287808",
        "shared": true
      },
      {
        "name": "CHART INDUSTRIES INC",
        "value": "90683881.12",
        "weight": "0.00279936",
        "shared": false
      },
      {
        "name": "UMB FINANCIAL CORP",
        "value": "89446549.92",
        "weight": "0.00276117",
        "shared": false
      },
      {
        "name": "ARROWHEAD PHARMACEUTICALS INC",
        "value": "89053899.69",
        "weight": "0.00274905",
        "shared": false
      },
      {
        "name": "MADRIGAL PHARMACEUTICALS INC",
        "value": "88101733.43",
        "weight": "0.00271965",
        "shared": true
      },
      {
        "name": "OKLO INC",
        "value": "83836038.24",
        "weight": "0.00258797",
        "shared": false
      },
      {
        "name": "MOOG INC-CLASS A",
        "value": "83157492.25",
        "weight": "0.00256703",
        "shared": false
      },
      {
        "name": "OLD NATL BANCORP",
        "value": "82950330.47",
        "weight": "0.00256063",
        "shared": false
      },
      {
        "name": "COMMERCIAL METALS CO",
        "value": "82868550.45",
        "weight": "0.00255811",
        "shared": false
      },
      {
        "name": "INTERDIGITAL INC",
        "value": "81930564.08",
        "weight": "0.00252915",
        "shared": false
      },
      {
        "name": "LUMEN TECHNOLOGIES INC",
        "value": "81496094.40",
        "weight": "0.00251574",
        "shared": false
      },
      {
        "name": "CARETRUST REIT INC",
        "value": "81488351.56",
        "weight": "0.00251550",
        "shared": true
      },
      {
        "name": "AVIDITY BIOSCIENCES",
        "value": "81293204.28",
        "weight": "0.00250948",
        "shared": false
      },
      {
        "name": "JACKSON FINANCIAL INC",
        "value": "79830877.08",
        "weight": "0.00246434",
        "shared": false
      },
      {
        "name": "URANIUM ENERGY CORP",
        "value": "79696037.60",
        "weight": "0.00246017",
        "shared": true
      },
      {
        "name": "WATTS WATER TECH INC CL A",
        "value": "79587426.93",
        "weight": "0.00245682",
        "shared": false
      },
      {
        "name": "JOHN BEAN TECHNOLOGIES CORP",
        "value": "79574162.33",
        "weight": "0.00245641",
        "shared": false
      },
      {
        "name": "APPLIED DIGITAL CORP",
        "value": "78009309.84",
        "weight": "0.00240811",
        "shared": false
      },
      {
        "name": "COMPASS INC - A",
        "value": "77869717.52",
        "weight": "0.00240380",
        "shared": true
      },
      {
        "name": "PRIMORIS SVCS CORP",
        "value": "77690412.50",
        "weight": "0.00239826",
        "shared": false
      },
      {
        "name": "AMERICAN HEALTHCARE REIT INC",
        "value": "76892151.22",
        "weight": "0.00237362",
        "shared": false
      },
      {
        "name": "CADENCE BANK",
        "value": "76216573.40",
        "weight": "0.00235277",
        "shared": false
      },
      {
        "name": "SITIME CORP",
        "value": "75777789.01",
        "weight": "0.00233922",
        "shared": false
      },
      {
        "name": "PRAXIS PRECISION MEDICINES INC",
        "value": "74727290.00",
        "weight": "0.00230679",
        "shared": false
      },
      {
        "name": "ORMAT TECHNOLOGIES INC",
        "value": "73823922.50",
        "weight": "0.00227891",
        "shared": false
      },
      {
        "name": "AXSOME THERAPEUTICS INC",
        "value": "73169728.50",
        "weight": "0.00225871",
        "shared": true
      },
      {
        "name": "FLUOR CORP",
        "value": "72127948.31",
        "weight": "0.00222655",
        "shared": false
      },
      {
        "name": "SANMINA CORP",
        "value": "71731308.88",
        "weight": "0.00221431",
        "shared": true
      },
      {
        "name": "CYTOKINETICS INC",
        "value": "71409692.01",
        "weight": "0.00220438",
        "shared": true
      }
    ]
  },
  "error": null,
  "sources": [
    {
      "label": "N-PORT (fund A)",
      "accession_no": "0000035402-26-002088",
      "as_of": "2026-01-31",
      "edgar_url": "https://www.sec.gov/Archives/edgar/data/819118/000003540226002088/0000035402-26-002088-index.htm"
    },
    {
      "label": "N-PORT (fund B)",
      "accession_no": "0000035402-26-002107",
      "as_of": "2026-01-31",
      "edgar_url": "https://www.sec.gov/Archives/edgar/data/35315/000003540226002107/0000035402-26-002107-index.htm"
    }
  ]
}