{
  "page": "compare",
  "query": {
    "a": "FSMTX",
    "b": "FIGB"
  },
  "retrieved_at": "2026-07-07T18:59:37+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 Total Bond Fund",
    "ticker": "FSMTX",
    "slug": "FSMTX",
    "series_id": "S000062237",
    "html_url": "https://fundwatcher.app/funds/FSMTX/"
  },
  "fund_b": {
    "name": "Fidelity Investment Grade Bond ETF",
    "ticker": "FIGB",
    "slug": "FIGB",
    "series_id": "S000071131",
    "html_url": "https://fundwatcher.app/funds/FIGB/"
  },
  "overlap": {
    "coverage_a_by_b": "0.3808572282238601790387784680",
    "coverage_b_by_a": "0.3808572282238601790387784679",
    "shared_count": 471,
    "as_of": {
      "a": "2026-02-28",
      "b": "2026-02-28"
    },
    "a_top": [
      {
        "name": "Fidelity Cash Central Fund",
        "value": "740618333.70",
        "weight": "0.02962292",
        "shared": true
      },
      {
        "name": "US TREASURY N/B",
        "value": "579716794.00",
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      },
      {
        "name": "US TREASURY N/B",
        "value": "558705467.32",
        "weight": "0.02234685",
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      },
      {
        "name": "US TREASURY N/B",
        "value": "460560469.60",
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      },
      {
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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",
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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": "FNCL 6 3/24",
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      },
      {
        "name": "US TREASURY N/B",
        "value": "259560547.50",
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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": "G2SF 5.5 4/25",
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      {
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      },
      {
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      {
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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",
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      },
      {
        "name": "US TREASURY N/B",
        "value": "189783085.47",
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      },
      {
        "name": "GNMA TBA",
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      },
      {
        "name": "US TREASURY N/B",
        "value": "177983983.90",
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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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      {
        "name": "US TREASURY N/B",
        "value": "149625683.96",
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      },
      {
        "name": "Fannie Mae or Freddie Mac",
        "value": "149208329.22",
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      {
        "name": "US TREASURY N/B",
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      {
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      {
        "name": "BANK OF AMER CRP",
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        "shared": true
      },
      {
        "name": "US TREASURY N/B",
        "value": "110705161.80",
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      },
      {
        "name": "Uniform Mortgage-Backed Security, TBA",
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      },
      {
        "name": "FNCL 6 4/26",
        "value": "104895807.10",
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      {
        "name": "US TREASURY N/B",
        "value": "104663672.40",
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      {
        "name": "US TREASURY N/B",
        "value": "101882812.00",
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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": "FNCI 5 4/21",
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      {
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    ],
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      {
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      {
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      {
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      {
        "name": "US TREASURY N/B",
        "value": "8322371.07",
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      {
        "name": "Uniform Mortgage-Backed Security, TBA",
        "value": "7660517.93",
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      },
      {
        "name": "FNCL 5.5 3/25",
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      {
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      {
        "name": "GNII II 5.5% 03/01/2056 #TBA",
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      {
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      {
        "name": "G2SF 5.5 4/25",
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        "name": "FNCL 2 4/26",
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      {
        "name": "Fannie Mae or Freddie Mac",
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      {
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      {
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        "value": "2851953.13",
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      {
        "name": "US TREASURY N/B",
        "value": "2791589.05",
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      {
        "name": "FNCI 5 4/21",
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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": "2504199.23",
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      {
        "name": "US TREASURY N/B",
        "value": "2465326.80",
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      {
        "name": "US TREASURY N/B",
        "value": "2204043.74",
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      },
      {
        "name": "Uniform Mortgage-Backed Security, TBA",
        "value": "2143292.09",
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      },
      {
        "name": "US TREASURY N/B",
        "value": "2111226.56",
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      {
        "name": "US TREASURY N/B",
        "value": "2079602.34",
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      },
      {
        "name": "US TREASURY N/B",
        "value": "1973343.75",
        "weight": "0.00395240",
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      },
      {
        "name": "Government National Mortgage Association, TBA",
        "value": "1964049.40",
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      },
      {
        "name": "G2 MA7935",
        "value": "1954908.28",
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      },
      {
        "name": "US TREASURY N/B",
        "value": "1918851.57",
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      },
      {
        "name": "Petroleos Mexicanos",
        "value": "1802777.00",
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      },
      {
        "name": "US TREASURY N/B",
        "value": "1664650.79",
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        "shared": true
      },
      {
        "name": "US TREASURY N/B",
        "value": "1575644.54",
        "weight": "0.00315585",
        "shared": false
      },
      {
        "name": "JPMORGAN CHASE",
        "value": "1528973.42",
        "weight": "0.00306237",
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      }
    ]
  },
  "error": null,
  "sources": [
    {
      "label": "N-PORT (fund A)",
      "accession_no": "0000035402-26-002638",
      "as_of": "2026-02-28",
      "edgar_url": "https://www.sec.gov/Archives/edgar/data/35315/000003540226002638/0000035402-26-002638-index.htm"
    },
    {
      "label": "N-PORT (fund B)",
      "accession_no": "0000035402-26-002596",
      "as_of": "2026-02-28",
      "edgar_url": "https://www.sec.gov/Archives/edgar/data/1562565/000003540226002596/0000035402-26-002596-index.htm"
    }
  ]
}