{
  "page": "compare",
  "query": {
    "a": "FBIIX",
    "b": "CWBFX"
  },
  "retrieved_at": "2026-07-07T18:24:16+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 International Bond Index Fund",
    "ticker": "FBIIX",
    "slug": "FBIIX",
    "series_id": "S000066711",
    "html_url": "https://fundwatcher.app/funds/FBIIX/"
  },
  "fund_b": {
    "name": "Capital World Bond Fund",
    "ticker": "CWBFX",
    "slug": "CWBFX",
    "series_id": "S000009240",
    "html_url": "https://fundwatcher.app/funds/CWBFX/"
  },
  "overlap": {
    "coverage_a_by_b": "0.06503834372588805775522522791",
    "coverage_b_by_a": "0.06503834372588805775522522790",
    "shared_count": 174,
    "as_of": {
      "a": "2026-03-31",
      "b": "2026-03-31"
    },
    "a_top": [
      {
        "name": "GERMANY FEDERAL REPUBLIC OF 2.2% 10/10/2030 REGS",
        "value": "19598143.61",
        "weight": "0.01589814",
        "shared": false
      },
      {
        "name": "SPTR TRS EQUITY SOFR+70 BOA",
        "value": "19263589.84",
        "weight": "0.01562674",
        "shared": false
      },
      {
        "name": "United Kingdom of Great Britain and Northern Ireland",
        "value": "17649391.56",
        "weight": "0.01431730",
        "shared": true
      },
      {
        "name": "French Republic Government Bonds OAT",
        "value": "14421988.96",
        "weight": "0.01169921",
        "shared": true
      },
      {
        "name": "GERMANY FEDERAL REPUBLIC OF 2.6% 08/15/2035 REGS",
        "value": "13332070.12",
        "weight": "0.01081506",
        "shared": false
      },
      {
        "name": "JAPAN GOVT 10-YR",
        "value": "11713989.48",
        "weight": "0.00950246",
        "shared": false
      },
      {
        "name": "UNITED KINGDOM GILT GBP REG S 4.375% 03-07-30",
        "value": "11088622.95",
        "weight": "0.00899516",
        "shared": true
      },
      {
        "name": "JAPAN GOVT 20-YR",
        "value": "9503315.86",
        "weight": "0.00770915",
        "shared": false
      },
      {
        "name": "GERMANY FEDERAL REPUBLIC OF 2.5% 08/15/2046 REGS",
        "value": "9250072.91",
        "weight": "0.00750372",
        "shared": false
      },
      {
        "name": "UNITED KINGDOM GILT GBP REG S 3.5% 01-22-45",
        "value": "9076188.83",
        "weight": "0.00736266",
        "shared": false
      },
      {
        "name": "French Republic Government Bonds OAT",
        "value": "8682009.48",
        "weight": "0.00704290",
        "shared": true
      },
      {
        "name": "French Republic Government Bonds OAT",
        "value": "8497666.29",
        "weight": "0.00689336",
        "shared": false
      },
      {
        "name": "French Republic Government Bonds OAT",
        "value": "8470738.77",
        "weight": "0.00687152",
        "shared": true
      },
      {
        "name": "Bundesrepublik Deutschland Bundesanleihe",
        "value": "8125325.55",
        "weight": "0.00659131",
        "shared": false
      },
      {
        "name": "French Republic Government Bonds OAT",
        "value": "8029034.64",
        "weight": "0.00651320",
        "shared": true
      },
      {
        "name": "GERMANY FEDERAL REPUBLIC OF 1.7% 08/15/2032 REGS",
        "value": "7561640.44",
        "weight": "0.00613405",
        "shared": true
      },
      {
        "name": "JAPAN GOVT 10-YR",
        "value": "7447452.37",
        "weight": "0.00604142",
        "shared": true
      },
      {
        "name": "JAPAN GOVT 40-YR",
        "value": "7357200.35",
        "weight": "0.00596821",
        "shared": true
      },
      {
        "name": "Bundesobligation",
        "value": "7112683.49",
        "weight": "0.00576985",
        "shared": false
      },
      {
        "name": "Segretariato Generale Della Presidenza Della Repubblica",
        "value": "6950592.20",
        "weight": "0.00563836",
        "shared": true
      },
      {
        "name": "ITALY REPUBLIC OF 2.65% 06/15/2028 REGS",
        "value": "6941303.60",
        "weight": "0.00563083",
        "shared": true
      },
      {
        "name": "ITALY REPUBLIC OF 3.45% 07/15/2027 REGS",
        "value": "6737630.24",
        "weight": "0.00546561",
        "shared": false
      },
      {
        "name": "Gouvernement De France",
        "value": "6345017.26",
        "weight": "0.00514712",
        "shared": false
      },
      {
        "name": "Canadian Government Bond",
        "value": "6251789.68",
        "weight": "0.00507149",
        "shared": false
      },
      {
        "name": "JAPAN GOVT 10-YR",
        "value": "6250069.22",
        "weight": "0.00507009",
        "shared": false
      },
      {
        "name": "ITALY REPUBLIC OF 3.25% 07/15/2032 144A REGS",
        "value": "6247979.57",
        "weight": "0.00506840",
        "shared": false
      },
      {
        "name": "French Republic Government Bonds OAT",
        "value": "6151848.00",
        "weight": "0.00499042",
        "shared": false
      },
      {
        "name": "SPANISH GOV'T",
        "value": "5994421.44",
        "weight": "0.00486271",
        "shared": true
      },
      {
        "name": "SPANISH GOV'T",
        "value": "5944340.91",
        "weight": "0.00482209",
        "shared": true
      },
      {
        "name": "GERMANY FEDERAL REPUBLIC OF 2% 12/16/2027 REGS",
        "value": "5769402.06",
        "weight": "0.00468017",
        "shared": true
      },
      {
        "name": "SPANISH GOV'T",
        "value": "5745835.00",
        "weight": "0.00466106",
        "shared": false
      },
      {
        "name": "UNITED KINGDOM GILT GBP REG S 1.125% 10-22-73",
        "value": "5571152.24",
        "weight": "0.00451935",
        "shared": true
      },
      {
        "name": "Segretariato Generale Della Presidenza Della Repubblica",
        "value": "5258101.79",
        "weight": "0.00426540",
        "shared": true
      },
      {
        "name": "EUROPEAN UNION 1.875% 05/25/2037 REGS",
        "value": "4909204.24",
        "weight": "0.00398238",
        "shared": false
      },
      {
        "name": "SPANISH GOV'T",
        "value": "4806385.54",
        "weight": "0.00389897",
        "shared": true
      },
      {
        "name": "JAPAN GOVT 10-YR",
        "value": "4781607.19",
        "weight": "0.00387887",
        "shared": false
      },
      {
        "name": "JAPAN GOVT 10-YR",
        "value": "4703387.41",
        "weight": "0.00381542",
        "shared": false
      },
      {
        "name": "Government of Canada",
        "value": "4585137.52",
        "weight": "0.00371949",
        "shared": false
      },
      {
        "name": "GERMANY FEDERAL REPUBLIC OF 2.1% 04/12/2029 REGS",
        "value": "4512431.56",
        "weight": "0.00366051",
        "shared": false
      },
      {
        "name": "JAPAN GOVT  5-YR",
        "value": "4456656.49",
        "weight": "0.00361527",
        "shared": false
      },
      {
        "name": "JAPAN GOVT 20-YR",
        "value": "4306876.75",
        "weight": "0.00349377",
        "shared": false
      },
      {
        "name": "GERMANY FEDERAL REPUBLIC OF 2.3% 02/15/2033 REGS",
        "value": "4260655.45",
        "weight": "0.00345627",
        "shared": true
      },
      {
        "name": "UNITED KINGDOM GILT GBP REG S 4.5% 06-07-28",
        "value": "4219421.95",
        "weight": "0.00342282",
        "shared": true
      },
      {
        "name": "UNITED KINGDOM GILT 4.250000% 07/31/2034",
        "value": "4139439.58",
        "weight": "0.00335794",
        "shared": false
      },
      {
        "name": "SPANISH GOV'T",
        "value": "4124504.95",
        "weight": "0.00334582",
        "shared": true
      },
      {
        "name": "French Republic Government Bonds OAT",
        "value": "4086605.76",
        "weight": "0.00331508",
        "shared": true
      },
      {
        "name": "US DOLLARS",
        "value": "4048752.18",
        "weight": "0.00328437",
        "shared": false
      },
      {
        "name": "French Republic Government Bonds OAT",
        "value": "4039165.03",
        "weight": "0.00327660",
        "shared": false
      },
      {
        "name": "JAPAN GOVT 20-YR",
        "value": "3648153.89",
        "weight": "0.00295940",
        "shared": false
      },
      {
        "name": "ITALY REPUBLIC OF 1.5% 04/30/2045 144A REGS",
        "value": "3629618.27",
        "weight": "0.00294437",
        "shared": false
      }
    ],
    "b_top": [
      {
        "name": "CAPITAL GROUP CENTRAL CASH FUND",
        "value": "892906371.43",
        "weight": "0.08844300",
        "shared": false
      },
      {
        "name": "US TREASURY N/B",
        "value": "176021120.20",
        "weight": "0.01743501",
        "shared": false
      },
      {
        "name": "US TREASURY N/B",
        "value": "162041506.48",
        "weight": "0.01605032",
        "shared": false
      },
      {
        "name": "PETROLEOS MEXICANOS SR UNSEC 6.84% 01-23-30",
        "value": "159114497.95",
        "weight": "0.01576040",
        "shared": false
      },
      {
        "name": "KOREA TRSY BD",
        "value": "143221985.24",
        "weight": "0.01418624",
        "shared": false
      },
      {
        "name": "US TREASURY N/B",
        "value": "123802852.95",
        "weight": "0.01226276",
        "shared": false
      },
      {
        "name": "FNCL 3.5 4/26",
        "value": "97989778.47",
        "weight": "0.00970596",
        "shared": false
      },
      {
        "name": "PERU REPUBLIC OF 7.6% 08/12/2039 144A REGS",
        "value": "95701862.58",
        "weight": "0.00947934",
        "shared": false
      },
      {
        "name": "JAPAN GOVT 10-YR",
        "value": "79960991.85",
        "weight": "0.00792019",
        "shared": true
      },
      {
        "name": "EUROPEAN UNION MTN 3.375000% 12/12/2035",
        "value": "79850584.43",
        "weight": "0.00790926",
        "shared": false
      },
      {
        "name": "KOREA TRSY BD",
        "value": "78687641.44",
        "weight": "0.00779407",
        "shared": false
      },
      {
        "name": "TREASURY CORP OF VICTORIA AUD 5.5% 09-15-39",
        "value": "77535369.88",
        "weight": "0.00767993",
        "shared": false
      },
      {
        "name": "French Republic Government Bonds OAT",
        "value": "76099043.10",
        "weight": "0.00753766",
        "shared": true
      },
      {
        "name": "Presidencia da Republica",
        "value": "75393089.94",
        "weight": "0.00746774",
        "shared": false
      },
      {
        "name": "EUROPEAN UNION 3.625% 12-12-40",
        "value": "72637233.68",
        "weight": "0.00719477",
        "shared": false
      },
      {
        "name": "FORD MOTOR CRED",
        "value": "64921153.92",
        "weight": "0.00643049",
        "shared": false
      },
      {
        "name": "Urad Vlady Ceske Republiky",
        "value": "56396180.57",
        "weight": "0.00558608",
        "shared": false
      },
      {
        "name": "JAPAN GOVT 10-YR",
        "value": "54924229.40",
        "weight": "0.00544028",
        "shared": true
      },
      {
        "name": "JAPAN GOVT 20-YR",
        "value": "54704890.92",
        "weight": "0.00541856",
        "shared": true
      },
      {
        "name": "US TREASURY N/B",
        "value": "49618577.72",
        "weight": "0.00491475",
        "shared": false
      },
      {
        "name": "UK TSY GILT",
        "value": "49477577.20",
        "weight": "0.00490079",
        "shared": false
      },
      {
        "name": "HUNGARY GOVT",
        "value": "48693129.49",
        "weight": "0.00482309",
        "shared": false
      },
      {
        "name": "Letras do Tesouro Nacional Treasury Bills",
        "value": "44524122.00",
        "weight": "0.00441015",
        "shared": false
      },
      {
        "name": "CANADIAN GOVERNMENT /CAD/ REGD 3.50000000",
        "value": "43667557.44",
        "weight": "0.00432530",
        "shared": false
      },
      {
        "name": "Uniform Mortgage-Backed Security, TBA",
        "value": "42740565.81",
        "weight": "0.00423348",
        "shared": false
      },
      {
        "name": "Titulos de Tesoreria",
        "value": "42434642.28",
        "weight": "0.00420318",
        "shared": false
      },
      {
        "name": "SWCH COMMERCIAL MORTGAGE TRUST SWCH 2025 DATA A 144A",
        "value": "40629061.71",
        "weight": "0.00402434",
        "shared": false
      },
      {
        "name": "GERMANY FEDERAL REPUBLIC OF 1.7% 08/15/2032 REGS",
        "value": "40595736.62",
        "weight": "0.00402104",
        "shared": true
      },
      {
        "name": "Segretariato Generale Della Presidenza Della Repubblica",
        "value": "39639948.41",
        "weight": "0.00392636",
        "shared": true
      },
      {
        "name": "U.S. Treasury Inflation-Protected Indexed Bonds",
        "value": "39296875.94",
        "weight": "0.00389238",
        "shared": false
      },
      {
        "name": "European Bank for Reconstruction & Development",
        "value": "37998178.99",
        "weight": "0.00376375",
        "shared": false
      },
      {
        "name": "US TREASURY N/B",
        "value": "37502677.99",
        "weight": "0.00371467",
        "shared": false
      },
      {
        "name": "French Republic Government Bonds OAT",
        "value": "36093194.15",
        "weight": "0.00357506",
        "shared": true
      },
      {
        "name": "French Republic Government Bonds OAT",
        "value": "35663663.18",
        "weight": "0.00353251",
        "shared": true
      },
      {
        "name": "FNCL 2 4/26",
        "value": "34809163.78",
        "weight": "0.00344787",
        "shared": false
      },
      {
        "name": "GERMANY FEDERAL REPUBLIC OF 2.5% 02/15/2035 REGS",
        "value": "34545610.07",
        "weight": "0.00342177",
        "shared": false
      },
      {
        "name": "United Kingdom of Great Britain and Northern Ireland",
        "value": "33980862.28",
        "weight": "0.00336583",
        "shared": true
      },
      {
        "name": "FNCL 2 5/26",
        "value": "33689829.63",
        "weight": "0.00333700",
        "shared": false
      },
      {
        "name": "US TREASURY N/B",
        "value": "32781890.72",
        "weight": "0.00324707",
        "shared": false
      },
      {
        "name": "ITALY REPUBLIC OF 2.8% 12/01/2028 REGS",
        "value": "32338936.95",
        "weight": "0.00320319",
        "shared": true
      },
      {
        "name": "FNCL 4 4/26",
        "value": "31904416.81",
        "weight": "0.00316015",
        "shared": false
      },
      {
        "name": "SAMARCO MINERACAO SA REG S SR UNSEC PIK 9.0% 06-30-31/12-30-25",
        "value": "31701035.46",
        "weight": "0.00314001",
        "shared": false
      },
      {
        "name": "JAPAN GOVT 20-YR",
        "value": "31675662.83",
        "weight": "0.00313750",
        "shared": true
      },
      {
        "name": "CSN Islands XI Corp.",
        "value": "31202269.92",
        "weight": "0.00309061",
        "shared": false
      },
      {
        "name": "Sandor-Palota",
        "value": "31117722.06",
        "weight": "0.00308223",
        "shared": false
      },
      {
        "name": "Segretariato Generale Della Presidenza Della Repubblica",
        "value": "30769032.31",
        "weight": "0.00304769",
        "shared": true
      },
      {
        "name": "SPANISH GOV'T",
        "value": "30727205.93",
        "weight": "0.00304355",
        "shared": true
      },
      {
        "name": "HUNGARY GOVERNMENT BOND HUF 4.5% 05-27-32",
        "value": "30662620.94",
        "weight": "0.00303715",
        "shared": false
      },
      {
        "name": "FNCL UMBS 5.5 RJ1857 06-01-54",
        "value": "30196581.60",
        "weight": "0.00299099",
        "shared": false
      },
      {
        "name": "EUROPEAN UNION REG S SR UNSEC EUR (B) 4.0% 10-12-55",
        "value": "28774613.29",
        "weight": "0.00285015",
        "shared": true
      }
    ]
  },
  "error": null,
  "sources": [
    {
      "label": "N-PORT (fund A)",
      "accession_no": "0000035402-26-003386",
      "as_of": "2026-03-31",
      "edgar_url": "https://www.sec.gov/Archives/edgar/data/35315/000003540226003386/0000035402-26-003386-index.htm"
    },
    {
      "label": "N-PORT (fund B)",
      "accession_no": "0001193125-26-245362",
      "as_of": "2026-03-31",
      "edgar_url": "https://www.sec.gov/Archives/edgar/data/812303/000119312526245362/0001193125-26-245362-index.htm"
    }
  ]
}