{
  "page": "compare",
  "query": {
    "a": "FSTQX",
    "b": "IGOV"
  },
  "retrieved_at": "2026-07-07T17:54:25+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 Series International Developed Markets Bond Index Fund",
    "ticker": "FSTQX",
    "slug": "FSTQX",
    "series_id": "S000072687",
    "html_url": "https://fundwatcher.app/funds/FSTQX/"
  },
  "fund_b": {
    "name": "iShares International Treasury Bond ETF",
    "ticker": "IGOV",
    "slug": "IGOV",
    "series_id": "S000023614",
    "html_url": "https://fundwatcher.app/funds/IGOV/"
  },
  "overlap": {
    "coverage_a_by_b": "0.5082945274290454577089477388",
    "coverage_b_by_a": "0.5082945274290454577089477390",
    "shared_count": 492,
    "as_of": {
      "a": "2026-03-31",
      "b": "2026-01-31"
    },
    "a_top": [
      {
        "name": "SPTR TRS EQUITY SOFR+70 BOA",
        "value": "240603319.92",
        "weight": "0.01505396",
        "shared": false
      },
      {
        "name": "Fidelity Cash Central Fund",
        "value": "160791847.98",
        "weight": "0.01006035",
        "shared": false
      },
      {
        "name": "UNITED KINGDOM GILT GBP REG S 4.5% 06-07-28",
        "value": "145689474.93",
        "weight": "0.00911543",
        "shared": true
      },
      {
        "name": "ITALY REPUBLIC OF 2.1% 08/26/2027 REGS",
        "value": "134834390.72",
        "weight": "0.00843626",
        "shared": true
      },
      {
        "name": "United Kingdom of Great Britain and Northern Ireland",
        "value": "130597762.21",
        "weight": "0.00817118",
        "shared": true
      },
      {
        "name": "JAPAN GOVT 10-YR",
        "value": "130352144.97",
        "weight": "0.00815581",
        "shared": true
      },
      {
        "name": "French Republic Government Bonds OAT",
        "value": "117592698.45",
        "weight": "0.00735749",
        "shared": true
      },
      {
        "name": "PORTUGUESE OT'S",
        "value": "109800115.82",
        "weight": "0.00686992",
        "shared": true
      },
      {
        "name": "GERMANY FEDERAL REPUBLIC OF 2.4% 10/19/2028 REGS",
        "value": "107564485.28",
        "weight": "0.00673004",
        "shared": true
      },
      {
        "name": "French Republic Government Bonds OAT",
        "value": "106362625.37",
        "weight": "0.00665485",
        "shared": true
      },
      {
        "name": "PORTUGUESE OT'S",
        "value": "102603323.34",
        "weight": "0.00641964",
        "shared": true
      },
      {
        "name": "French Republic Government Bonds OAT",
        "value": "92738532.62",
        "weight": "0.00580242",
        "shared": true
      },
      {
        "name": "UNITED KINGDOM GILT GBP REG S 3.5% 01-22-45",
        "value": "91172111.48",
        "weight": "0.00570441",
        "shared": true
      },
      {
        "name": "Republic of Austria Government Bonds",
        "value": "90251457.09",
        "weight": "0.00564681",
        "shared": true
      },
      {
        "name": "AUSTRALIAN GOVT.",
        "value": "89214533.94",
        "weight": "0.00558193",
        "shared": true
      },
      {
        "name": "AUSTRALIAN GOVT.",
        "value": "88358470.04",
        "weight": "0.00552837",
        "shared": true
      },
      {
        "name": "Republic of Austria Government Bonds",
        "value": "87640166.93",
        "weight": "0.00548343",
        "shared": true
      },
      {
        "name": "HELLENIC REPUBLIC GOVERNMENT BOND EUR REG S 3.9% 01-30-33",
        "value": "87550650.90",
        "weight": "0.00547783",
        "shared": false
      },
      {
        "name": "French Republic Government Bonds OAT",
        "value": "84041806.14",
        "weight": "0.00525829",
        "shared": true
      },
      {
        "name": "ITALY REPUBLIC OF 2.7% 10/01/2030 144A REGS",
        "value": "83596639.98",
        "weight": "0.00523044",
        "shared": true
      },
      {
        "name": "JAPAN GOVT 20-YR",
        "value": "83078993.09",
        "weight": "0.00519805",
        "shared": true
      },
      {
        "name": "UNITED KINGDOM GILT 4.250000% 07/31/2034",
        "value": "83043526.31",
        "weight": "0.00519583",
        "shared": true
      },
      {
        "name": "GERMANY FEDERAL REPUBLIC OF 2.6% 08/15/2035 REGS",
        "value": "82233104.84",
        "weight": "0.00514512",
        "shared": true
      },
      {
        "name": "SPANISH GOV'T",
        "value": "81625416.48",
        "weight": "0.00510710",
        "shared": true
      },
      {
        "name": "JAPAN GOVT 10-YR",
        "value": "80654763.58",
        "weight": "0.00504637",
        "shared": true
      },
      {
        "name": "FINNISH GOV'T",
        "value": "79853053.31",
        "weight": "0.00499621",
        "shared": true
      },
      {
        "name": "French Republic Government Bonds OAT",
        "value": "78842670.30",
        "weight": "0.00493299",
        "shared": true
      },
      {
        "name": "NETHERLANDS GOVT",
        "value": "78676385.90",
        "weight": "0.00492259",
        "shared": true
      },
      {
        "name": "French Republic Government Bonds OAT",
        "value": "77973120.19",
        "weight": "0.00487859",
        "shared": true
      },
      {
        "name": "ITALY REPUBLIC OF 3.6% 10/01/2035 REGS",
        "value": "75630384.75",
        "weight": "0.00473201",
        "shared": true
      },
      {
        "name": "SINGAPORE REPUBLIC OF 3% 04/01/2029",
        "value": "75122273.38",
        "weight": "0.00470022",
        "shared": true
      },
      {
        "name": "CANADIAN GOVERNMENT /CAD/ REGD 3.50000000",
        "value": "74875863.17",
        "weight": "0.00468480",
        "shared": true
      },
      {
        "name": "NEW ZEALAND GVT",
        "value": "73559345.58",
        "weight": "0.00460243",
        "shared": true
      },
      {
        "name": "French Republic Government Bonds OAT",
        "value": "71384965.50",
        "weight": "0.00446638",
        "shared": true
      },
      {
        "name": "Service Public Federal Chancellerie Du Premier Ministre",
        "value": "70252468.19",
        "weight": "0.00439552",
        "shared": true
      },
      {
        "name": "IRISH GOVT",
        "value": "69132986.41",
        "weight": "0.00432548",
        "shared": true
      },
      {
        "name": "JAPAN GOVT 10-YR",
        "value": "69087446.40",
        "weight": "0.00432263",
        "shared": true
      },
      {
        "name": "Republic of Austria Government Bonds",
        "value": "68574254.31",
        "weight": "0.00429052",
        "shared": true
      },
      {
        "name": "PORTUGUESE OT'S",
        "value": "67914917.03",
        "weight": "0.00424927",
        "shared": true
      },
      {
        "name": "SPANISH GOV'T",
        "value": "67239816.83",
        "weight": "0.00420703",
        "shared": true
      },
      {
        "name": "Republic of Austria Government Bonds",
        "value": "66415056.68",
        "weight": "0.00415543",
        "shared": true
      },
      {
        "name": "Republic of Ireland",
        "value": "66122104.56",
        "weight": "0.00413710",
        "shared": true
      },
      {
        "name": "GERMANY FEDERAL REPUBLIC OF 2.2% 10/10/2030 REGS",
        "value": "66044611.13",
        "weight": "0.00413225",
        "shared": true
      },
      {
        "name": "NETHERLANDS GOVT",
        "value": "65744932.97",
        "weight": "0.00411350",
        "shared": true
      },
      {
        "name": "Kingdom of Belgium Government Bonds",
        "value": "65604940.97",
        "weight": "0.00410474",
        "shared": true
      },
      {
        "name": "GERMANY FEDERAL REPUBLIC OF 2% 12/16/2027 REGS",
        "value": "65592606.79",
        "weight": "0.00410397",
        "shared": false
      },
      {
        "name": "Commonwealth of Australia",
        "value": "64363864.56",
        "weight": "0.00402709",
        "shared": true
      },
      {
        "name": "FINNISH GOV'T",
        "value": "64260438.72",
        "weight": "0.00402062",
        "shared": true
      },
      {
        "name": "French Republic Government Bonds OAT",
        "value": "63631116.78",
        "weight": "0.00398124",
        "shared": true
      },
      {
        "name": "UNITED KINGDOM GILT GBP REG S 4.375% 03-07-30",
        "value": "63439082.42",
        "weight": "0.00396923",
        "shared": true
      }
    ],
    "b_top": [
      {
        "name": "KINGDOM OF DENMARK 4.500000% 11/15/2039",
        "value": "6189905.16",
        "weight": "0.00600092",
        "shared": true
      },
      {
        "name": "PORTUGUESE OT'S",
        "value": "5108528.47",
        "weight": "0.00495256",
        "shared": true
      },
      {
        "name": "Israel Government Bonds - Fixed",
        "value": "4924504.61",
        "weight": "0.00477416",
        "shared": false
      },
      {
        "name": "PORTUGUESE OT'S",
        "value": "4673711.20",
        "weight": "0.00453102",
        "shared": true
      },
      {
        "name": "Israel Government Bonds - Fixed",
        "value": "4548042.59",
        "weight": "0.00440919",
        "shared": false
      },
      {
        "name": "KINGDOM OF DENMARK 2.250000% 11/15/2033",
        "value": "4543372.35",
        "weight": "0.00440466",
        "shared": true
      },
      {
        "name": "IRELAND REPUBLIC OF 2.4% 05/15/2030 REGS",
        "value": "4522565.20",
        "weight": "0.00438449",
        "shared": true
      },
      {
        "name": "KINGDOM OF DENMARK 0.500000% 11/15/2029",
        "value": "4079616.40",
        "weight": "0.00395506",
        "shared": true
      },
      {
        "name": "GERMANY FEDERAL REPUBLIC OF 1.3% 10/15/2027 REGS",
        "value": "4079318.63",
        "weight": "0.00395477",
        "shared": true
      },
      {
        "name": "Israel Government Bonds - Fixed",
        "value": "4064860.56",
        "weight": "0.00394076",
        "shared": false
      },
      {
        "name": "Israel Government Bonds - Fixed",
        "value": "4056394.53",
        "weight": "0.00393255",
        "shared": false
      },
      {
        "name": "Israel Government Bonds - Fixed",
        "value": "4016469.18",
        "weight": "0.00389384",
        "shared": false
      },
      {
        "name": "NEW ZEALAND GVT",
        "value": "3820690.52",
        "weight": "0.00370404",
        "shared": true
      },
      {
        "name": "PORTUGUESE OT'S",
        "value": "3816109.03",
        "weight": "0.00369960",
        "shared": true
      },
      {
        "name": "Republic of Ireland",
        "value": "3788738.71",
        "weight": "0.00367307",
        "shared": true
      },
      {
        "name": "Israel Government Bonds - Fixed",
        "value": "3633951.07",
        "weight": "0.00352300",
        "shared": false
      },
      {
        "name": "Israel Government Bonds - Fixed",
        "value": "3623177.39",
        "weight": "0.00351256",
        "shared": false
      },
      {
        "name": "NEW ZEALAND GVT",
        "value": "3589575.02",
        "weight": "0.00347998",
        "shared": true
      },
      {
        "name": "IRISH GOVT",
        "value": "3515678.09",
        "weight": "0.00340834",
        "shared": true
      },
      {
        "name": "Republic of Austria Government Bonds",
        "value": "3471757.98",
        "weight": "0.00336576",
        "shared": true
      },
      {
        "name": "French Republic Government Bonds OAT",
        "value": "3460778.80",
        "weight": "0.00335512",
        "shared": true
      },
      {
        "name": "IRISH GOVT",
        "value": "3452726.96",
        "weight": "0.00334731",
        "shared": true
      },
      {
        "name": "IRISH GOVT",
        "value": "3342085.48",
        "weight": "0.00324005",
        "shared": true
      },
      {
        "name": "French Republic Government Bonds OAT",
        "value": "3338340.71",
        "weight": "0.00323642",
        "shared": true
      },
      {
        "name": "French Republic Government Bonds OAT",
        "value": "3331928.69",
        "weight": "0.00323020",
        "shared": true
      },
      {
        "name": "French Republic Government Bonds OAT",
        "value": "3302424.16",
        "weight": "0.00320160",
        "shared": true
      },
      {
        "name": "Israel Government Bonds - Fixed",
        "value": "3288303.79",
        "weight": "0.00318791",
        "shared": false
      },
      {
        "name": "PORTUGUESE OT'S",
        "value": "3279604.16",
        "weight": "0.00317948",
        "shared": true
      },
      {
        "name": "French Republic Government Bonds OAT",
        "value": "3270672.44",
        "weight": "0.00317082",
        "shared": true
      },
      {
        "name": "NETHERLANDS GOVT",
        "value": "3251216.58",
        "weight": "0.00315195",
        "shared": true
      },
      {
        "name": "SWEDISH GOVRNMNT",
        "value": "3231681.32",
        "weight": "0.00313302",
        "shared": true
      },
      {
        "name": "PORTUGUESE OT'S",
        "value": "3225989.69",
        "weight": "0.00312750",
        "shared": true
      },
      {
        "name": "SWEDISH GOVRNMNT",
        "value": "3223679.96",
        "weight": "0.00312526",
        "shared": true
      },
      {
        "name": "IRISH GOVT",
        "value": "3196795.88",
        "weight": "0.00309920",
        "shared": true
      },
      {
        "name": "FINLAND REPUBLIC OF 3% 09/15/2033 144A REGS",
        "value": "3191682.15",
        "weight": "0.00309424",
        "shared": true
      },
      {
        "name": "SINGAPORE REPUBLIC OF 2.875% 09/01/2030",
        "value": "3149566.02",
        "weight": "0.00305341",
        "shared": true
      },
      {
        "name": "New Zealand Parliament",
        "value": "3062012.17",
        "weight": "0.00296853",
        "shared": true
      },
      {
        "name": "NEW ZEALAND GVT",
        "value": "3054719.95",
        "weight": "0.00296146",
        "shared": true
      },
      {
        "name": "French Republic Government Bonds OAT",
        "value": "3045465.50",
        "weight": "0.00295249",
        "shared": true
      },
      {
        "name": "PORTUGAL OBRIGACOES DO TESOURO OT EUR 144A LIFE/REG S 0.475% 10-18-30",
        "value": "3017196.40",
        "weight": "0.00292508",
        "shared": true
      },
      {
        "name": "NEW ZEALAND GVT",
        "value": "2995748.00",
        "weight": "0.00290429",
        "shared": false
      },
      {
        "name": "SINGAPORE REPUBLIC OF 3.5% 03/01/2027",
        "value": "2980828.58",
        "weight": "0.00288982",
        "shared": true
      },
      {
        "name": "SINGAPORE REPUBLIC OF 2.875% 07/01/2029",
        "value": "2976331.99",
        "weight": "0.00288546",
        "shared": true
      },
      {
        "name": "UNITED KINGDOM GILT 3.750000% 03/07/2027",
        "value": "2971282.71",
        "weight": "0.00288057",
        "shared": false
      },
      {
        "name": "French Republic Government Bonds OAT",
        "value": "2959141.00",
        "weight": "0.00286880",
        "shared": true
      },
      {
        "name": "UK TSY GILT",
        "value": "2945989.02",
        "weight": "0.00285605",
        "shared": false
      },
      {
        "name": "IRISH GOVT",
        "value": "2902536.89",
        "weight": "0.00281392",
        "shared": true
      },
      {
        "name": "DEUTSCHLAND REP",
        "value": "2889282.25",
        "weight": "0.00280107",
        "shared": false
      },
      {
        "name": "Republic of Austria Government Bonds",
        "value": "2863886.77",
        "weight": "0.00277645",
        "shared": true
      },
      {
        "name": "FINNISH GOV'T",
        "value": "2850987.17",
        "weight": "0.00276394",
        "shared": true
      }
    ]
  },
  "error": null,
  "sources": [
    {
      "label": "N-PORT (fund A)",
      "accession_no": "0000035402-26-003399",
      "as_of": "2026-03-31",
      "edgar_url": "https://www.sec.gov/Archives/edgar/data/215829/000003540226003399/0000035402-26-003399-index.htm"
    },
    {
      "label": "N-PORT (fund B)",
      "accession_no": "0001410368-26-031796",
      "as_of": "2026-01-31",
      "edgar_url": "https://www.sec.gov/Archives/edgar/data/1100663/000141036826031796/0001410368-26-031796-index.htm"
    }
  ]
}