{
  "page": "compare",
  "query": {
    "a": "RMBEX",
    "b": "CGCB"
  },
  "retrieved_at": "2026-07-07T17:44:57+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": "American Funds Mortgage Fund",
    "ticker": "RMBEX",
    "slug": "RMBEX",
    "series_id": "S000030190",
    "html_url": "https://fundwatcher.app/funds/RMBEX/"
  },
  "fund_b": {
    "name": "Capital Group Core Bond ETF",
    "ticker": "CGCB",
    "slug": "CGCB",
    "series_id": "S000080918",
    "html_url": "https://fundwatcher.app/funds/CGCB/"
  },
  "overlap": {
    "coverage_a_by_b": "0.08169982286552841055130831520",
    "coverage_b_by_a": "0.08169982286552841055130831519",
    "shared_count": 95,
    "as_of": {
      "a": "2026-02-28",
      "b": "2026-03-31"
    },
    "a_top": [
      {
        "name": "CAPITAL GROUP CENTRAL CASH FUND",
        "value": "511763449.00",
        "weight": "0.03645088",
        "shared": true
      },
      {
        "name": "FHLBanks Office of Finance",
        "value": "449912340.00",
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        "shared": false
      },
      {
        "name": "FNCL 6 3/24",
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      },
      {
        "name": "FR RQ0028",
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        "weight": "0.02658928",
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      },
      {
        "name": "Federal Home Loan Bank Discount Notes",
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      },
      {
        "name": "FHLBDN 0 05/04/22",
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      },
      {
        "name": "FHLBanks Office of Finance",
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      },
      {
        "name": "Federal Home Loan Bank Discount Notes",
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      },
      {
        "name": "Federal Home Loan Bank Discount Notes",
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      },
      {
        "name": "Federal Home Loan Bank (FHLB)",
        "value": "171258473.60",
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      },
      {
        "name": "FED HM LN BK BD 6/18/2026",
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      },
      {
        "name": "FED HOME LN DISCOUNT NT DISCOUNT NOT 03/26 0.00000",
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      },
      {
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        "name": "FR SD8290",
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      },
      {
        "name": "US TREASURY N/B",
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      },
      {
        "name": "FHLB",
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      },
      {
        "name": "FHLBanks Office of Finance",
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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": "FNMDI4 3.5 BF0765 09-01-63",
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      },
      {
        "name": "FR RQ0015",
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      {
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      {
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      },
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      {
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      {
        "name": "FHLB",
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        "weight": "0.00530736",
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      },
      {
        "name": "FED HM LN BK BD 5/15/2026",
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        "name": "FNCL UMBS 6.5 FA2842 07-01-55",
        "value": "72911945.50",
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      {
        "name": "G2 MA7051",
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      {
        "name": "Federal Farm Credit, 03",
        "value": "69986364.00",
        "weight": "0.00498485",
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      },
      {
        "name": "FNCL UMBS 6.0 QX4065 01-01-55",
        "value": "69644203.36",
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      },
      {
        "name": "UMBS, 30 Year",
        "value": "67630014.73",
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      },
      {
        "name": "FED HOME LN DISCOUNT NT DISCOUNT NOT 03/26 0.00000",
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      },
      {
        "name": "US TREASURY N/B",
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        "weight": "0.00457063",
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      },
      {
        "name": "Federal Home Loan Bank Discount Notes",
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        "weight": "0.00452256",
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      },
      {
        "name": "GOVERNMENT NATIONAL MORTGAGE CORPORATION",
        "value": "62268119.56",
        "weight": "0.00443511",
        "shared": false
      },
      {
        "name": "Fannie Mae or Freddie Mac",
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    ],
    "b_top": [
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      {
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        "name": "US TREASURY N/B",
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      {
        "name": "CAPITAL GROUP CENTRAL CASH FUND",
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      },
      {
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      {
        "name": "FN MA5735",
        "value": "54845667.84",
        "weight": "0.01178633",
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      },
      {
        "name": "BANK OF AMER CRP",
        "value": "54065224.52",
        "weight": "0.01161861",
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      {
        "name": "US TREASURY N/B",
        "value": "53332812.50",
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      },
      {
        "name": "BAXTER INTL",
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        "weight": "0.01015507",
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      },
      {
        "name": "BOEING CO",
        "value": "46295997.66",
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      {
        "name": "PACIFICORP",
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      {
        "name": "ORACLE CORP",
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      },
      {
        "name": "US TREASURY N/B",
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      {
        "name": "US TREASURY N/B",
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      },
      {
        "name": "HSBC HOLDINGS",
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        "weight": "0.00925595",
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      },
      {
        "name": "JPMORGAN CHASE",
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      },
      {
        "name": "US TREASURY N/B",
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      },
      {
        "name": "MORGAN STANLEY",
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        "weight": "0.00899616",
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      },
      {
        "name": "UMBS",
        "value": "39971975.87",
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      },
      {
        "name": "DTE ENERGY CO",
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      },
      {
        "name": "FNMA POOL MA5792 FN 08/55 FIXED 5.5",
        "value": "38627503.89",
        "weight": "0.00830105",
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      },
      {
        "name": "KBC GROUP NV",
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      },
      {
        "name": "FR SD8213",
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      },
      {
        "name": "FNMA, 30 Year",
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      },
      {
        "name": "DEUTSCHE BANK NY",
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      },
      {
        "name": "BOEING CO/THE",
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      {
        "name": "CVS HEALTH CORP",
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      {
        "name": "CAIXABANK SA REGD V/R 144A P/P 6.20800000",
        "value": "33562533.74",
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      },
      {
        "name": "FIFTH THIRD BANC",
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      },
      {
        "name": "BAE Systems PLC",
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      {
        "name": "TRUIST FINANCIAL",
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      },
      {
        "name": "FORD MOTOR CRED",
        "value": "30196734.08",
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      },
      {
        "name": "AMGEN INC",
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      },
      {
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        "value": "28375312.50",
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      {
        "name": "AIB V6.608 09/13/29 144A",
        "value": "28022445.58",
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      },
      {
        "name": "DANSKE BANK AS (UNGTD) 4.298%/VAR 04/01/2028 144A",
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      },
      {
        "name": "CAIXABANK",
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      },
      {
        "name": "FN MA4562",
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      },
      {
        "name": "US TREASURY N/B",
        "value": "26733110.42",
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      },
      {
        "name": "MORGAN STANLEY",
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        "weight": "0.00573315",
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      },
      {
        "name": "Freddie Mac Pool",
        "value": "26244151.84",
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      },
      {
        "name": "GOLDMAN SACHS GP",
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      },
      {
        "name": "FR SD8199",
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      },
      {
        "name": "MARS INC",
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      },
      {
        "name": "GEN MOTORS FIN",
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      },
      {
        "name": "NATWEST GROUP",
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      },
      {
        "name": "LLOYDS BK GR PLC",
        "value": "24274068.00",
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      },
      {
        "name": "Freddie Mac Pool",
        "value": "23512546.12",
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      },
      {
        "name": "WESTPAC BANKING",
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      {
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    ]
  },
  "error": null,
  "sources": [
    {
      "label": "N-PORT (fund A)",
      "accession_no": "0001193125-26-182050",
      "as_of": "2026-02-28",
      "edgar_url": "https://www.sec.gov/Archives/edgar/data/1496998/000119312526182050/0001193125-26-182050-index.htm"
    },
    {
      "label": "N-PORT (fund B)",
      "accession_no": "0001410368-26-054716",
      "as_of": "2026-03-31",
      "edgar_url": "https://www.sec.gov/Archives/edgar/data/1870117/000141036826054716/0001410368-26-054716-index.htm"
    }
  ]
}