{
  "page": "compare",
  "query": {
    "a": "FSTAX",
    "b": "FIABX"
  },
  "retrieved_at": "2026-07-07T13:15:00+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 Advisor Strategic Income Fund",
    "ticker": "FSTAX",
    "slug": "FSTAX",
    "series_id": "S000005152",
    "html_url": "https://fundwatcher.app/funds/FSTAX/"
  },
  "fund_b": {
    "name": "Fidelity SAI Sustainable Core Plus Bond Fund",
    "ticker": "FIABX",
    "slug": "FIABX",
    "series_id": "S000075889",
    "html_url": "https://fundwatcher.app/funds/FIABX/"
  },
  "overlap": {
    "coverage_a_by_b": "0.1454814937344186005603532798",
    "coverage_b_by_a": "0.1454814937344186005603532797",
    "shared_count": 152,
    "as_of": {
      "a": "2026-03-31",
      "b": "2026-02-28"
    },
    "a_top": [
      {
        "name": "Fidelity Emerging Markets Debt Central Fund",
        "value": "2354272702.65",
        "weight": "0.15147640",
        "shared": false
      },
      {
        "name": "Fidelity Cash Central Fund",
        "value": "1247350532.01",
        "weight": "0.08025585",
        "shared": true
      },
      {
        "name": "Fidelity Floating Rate Central Fund",
        "value": "1007405294.82",
        "weight": "0.06481752",
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      },
      {
        "name": "US TREASURY N/B",
        "value": "762936034.43",
        "weight": "0.04908811",
        "shared": false
      },
      {
        "name": "US TREASURY N/B",
        "value": "318562435.16",
        "weight": "0.02049664",
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      },
      {
        "name": "UNITED KINGDOM G.B. and N.IRELAND 4.125% 03/07/2031 REGS",
        "value": "208565129.38",
        "weight": "0.01341930",
        "shared": false
      },
      {
        "name": "US TREASURY N/B",
        "value": "207690155.74",
        "weight": "0.01336300",
        "shared": false
      },
      {
        "name": "Bundesrepublik Deutschland Bundesanleihe",
        "value": "188597322.49",
        "weight": "0.01213455",
        "shared": false
      },
      {
        "name": "Fidelity Securities Lending Cash Central Fund",
        "value": "188037004.00",
        "weight": "0.01209850",
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      },
      {
        "name": "iShares Broad USD High Yield Corporate Bond ETF",
        "value": "184686288.00",
        "weight": "0.01188291",
        "shared": false
      },
      {
        "name": "Government of Canada",
        "value": "165830321.33",
        "weight": "0.01066970",
        "shared": false
      },
      {
        "name": "GERMANY FEDERAL REPUBLIC OF 2.4% 04/18/2030 REGS",
        "value": "164898360.41",
        "weight": "0.01060973",
        "shared": false
      },
      {
        "name": "US TREASURY N/B",
        "value": "151517709.15",
        "weight": "0.00974881",
        "shared": false
      },
      {
        "name": "NVIDIA CORP",
        "value": "109174400.00",
        "weight": "0.00702440",
        "shared": false
      },
      {
        "name": "GERMANY FEDERAL REPUBLIC OF 2.6% 08/15/2035 REGS",
        "value": "104807996.69",
        "weight": "0.00674346",
        "shared": false
      },
      {
        "name": "COMFORT SYSTEMS USA INC",
        "value": "100804169.00",
        "weight": "0.00648585",
        "shared": false
      },
      {
        "name": "GERMANY FEDERAL REPUBLIC OF 2.7% 09/17/2026 REGS",
        "value": "82777300.62",
        "weight": "0.00532598",
        "shared": false
      },
      {
        "name": "Bundesschatzanweisungen",
        "value": "80123678.27",
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      },
      {
        "name": "US TREASURY N/B",
        "value": "78534703.25",
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      },
      {
        "name": "US TREASURY N/B",
        "value": "77359047.99",
        "weight": "0.00497736",
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      },
      {
        "name": "FED HOME LOAN MTG CORP - GOLD 4% 04/25/2027",
        "value": "77311150.30",
        "weight": "0.00497428",
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      },
      {
        "name": "US TREASURY N/B",
        "value": "75989015.63",
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      },
      {
        "name": "EchoStar Corp",
        "value": "73842376.73",
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      {
        "name": "US TREASURY N/B",
        "value": "73270695.68",
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      },
      {
        "name": "US TREASURY N/B",
        "value": "70137798.08",
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      },
      {
        "name": "SATS 3.875 11/30/30",
        "value": "66753336.55",
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      },
      {
        "name": "US TREASURY N/B",
        "value": "66145278.34",
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      },
      {
        "name": "ACRISURE HOLDINGS INC SER B-1 PC PP",
        "value": "65675632.32",
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      },
      {
        "name": "FEDERAL FARM CREDIT BANKS VFAC SOFR+16.5 01/19/2029",
        "value": "65278550.13",
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      },
      {
        "name": "FEDERAL FARM CREDIT BANKS VFAC SOFR+12 06/12/2028",
        "value": "60668855.76",
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      },
      {
        "name": "Bank of America Corp., Series FF",
        "value": "60526706.13",
        "weight": "0.00389435",
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      },
      {
        "name": "TAIWAN SEMIC MFG CO LTD SP ADR",
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      },
      {
        "name": "FHMS K061 A2",
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      },
      {
        "name": "US TREASURY N/B",
        "value": "59416498.92",
        "weight": "0.00382292",
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      },
      {
        "name": "EG GLOBAL FINANCE PLC SR SECURED 144A 11/28 12",
        "value": "58118569.08",
        "weight": "0.00373941",
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      },
      {
        "name": "GMAC LLC",
        "value": "56936044.17",
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      },
      {
        "name": "US TREASURY N/B",
        "value": "54793506.25",
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      },
      {
        "name": "FHMS K739 A2",
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      },
      {
        "name": "META PLATFORMS INC CL A",
        "value": "51033996.00",
        "weight": "0.00328358",
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      },
      {
        "name": "US TREASURY N/B",
        "value": "47445465.63",
        "weight": "0.00305269",
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      },
      {
        "name": "ALPHABET INC CL A",
        "value": "47332376.00",
        "weight": "0.00304542",
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      },
      {
        "name": "VERTIV HOLDINGS CO",
        "value": "47008808.00",
        "weight": "0.00302460",
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      },
      {
        "name": "US TREASURY N/B",
        "value": "46278752.19",
        "weight": "0.00297762",
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      },
      {
        "name": "US TREASURY N/B",
        "value": "46081205.17",
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      },
      {
        "name": "SWITZERLAND CONFEDERATION 3.5% 04/08/2033 REGS",
        "value": "46012647.65",
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      },
      {
        "name": "US TREASURY N/B",
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        "weight": "0.00285485",
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      },
      {
        "name": "GERMANY FEDERAL REPUBLIC OF 2.5% 02/15/2035 REGS",
        "value": "44066706.09",
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      },
      {
        "name": "US TREASURY N/B",
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      {
        "name": "US TREASURY N/B",
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      {
        "name": "US TREASURY N/B",
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    ],
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      {
        "name": "Fidelity Cash Central Fund",
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      },
      {
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      {
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      {
        "name": "US TREASURY N/B",
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      {
        "name": "US TREASURY N/B",
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      {
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      {
        "name": "US TREASURY N/B",
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      {
        "name": "US TREASURY N/B",
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      {
        "name": "US TREASURY N/B",
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      {
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      {
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      {
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      {
        "name": "US TREASURY N/B",
        "value": "3298195.30",
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      },
      {
        "name": "Uniform Mortgage-Backed Security, TBA",
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      {
        "name": "US TREASURY N/B",
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      {
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      {
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      {
        "name": "FNCL 5.5 3/25",
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      {
        "name": "US TREASURY N/B",
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      {
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      {
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      {
        "name": "US TREASURY N/B",
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      {
        "name": "US TREASURY N/B",
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      {
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      {
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      {
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      {
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      {
        "name": "FNCL 2 4/26",
        "value": "1904957.06",
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      },
      {
        "name": "Fannie Mae or Freddie Mac",
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      {
        "name": "US TREASURY N/B",
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      {
        "name": "Uniform Mortgage-Backed Security, TBA",
        "value": "1765410.22",
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      },
      {
        "name": "Uniform Mortgage-Backed Security, TBA",
        "value": "1731953.20",
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      },
      {
        "name": "GNII II 5.5% 03/01/2056 #TBA",
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      {
        "name": "US TREASURY N/B",
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      {
        "name": "Government National Mortgage Association, TBA",
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      {
        "name": "US TREASURY N/B",
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      {
        "name": "US TREASURY N/B",
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      {
        "name": "US TREASURY N/B",
        "value": "1437242.18",
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      },
      {
        "name": "FNCL 6 3/24",
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      },
      {
        "name": "US TREASURY N/B",
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      {
        "name": "US TREASURY N/B",
        "value": "1275900.01",
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      },
      {
        "name": "Aimco CLO 20 Ltd., Series 2023-20A, Class A1R",
        "value": "1252801.25",
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      },
      {
        "name": "US TREASURY N/B",
        "value": "1236203.13",
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      },
      {
        "name": "G2SF 5.5 4/25",
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      },
      {
        "name": "US TREASURY N/B",
        "value": "1159397.63",
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        "shared": true
      },
      {
        "name": "US TREASURY N/B",
        "value": "1133472.66",
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        "shared": true
      },
      {
        "name": "Uniform Mortgage-Backed Security, TBA",
        "value": "1130322.25",
        "weight": "0.00451723",
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      }
    ]
  },
  "error": null,
  "sources": [
    {
      "label": "N-PORT (fund A)",
      "accession_no": "0000035402-26-003300",
      "as_of": "2026-03-31",
      "edgar_url": "https://www.sec.gov/Archives/edgar/data/795422/000003540226003300/0000035402-26-003300-index.htm"
    },
    {
      "label": "N-PORT (fund B)",
      "accession_no": "0000035402-26-002635",
      "as_of": "2026-02-28",
      "edgar_url": "https://www.sec.gov/Archives/edgar/data/35315/000003540226002635/0000035402-26-002635-index.htm"
    }
  ]
}