{
  "page": "compare",
  "query": {
    "a": "RILFX",
    "b": "SPIP"
  },
  "retrieved_at": "2026-07-07T18:03:23+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 Inflation Linked Bond Fund",
    "ticker": "RILFX",
    "slug": "RILFX",
    "series_id": "S000039115",
    "html_url": "https://fundwatcher.app/funds/RILFX/"
  },
  "fund_b": {
    "name": "State Street(R) SPDR(R) Portfolio TIPS ETF",
    "ticker": "SPIP",
    "slug": "SPIP",
    "series_id": "S000017330",
    "html_url": "https://fundwatcher.app/funds/SPIP/"
  },
  "overlap": {
    "coverage_a_by_b": "0.5317664439270264760768570427",
    "coverage_b_by_a": "0.5317664439270264760768570427",
    "shared_count": 39,
    "as_of": {
      "a": "2026-02-28",
      "b": "2026-03-31"
    },
    "a_top": [
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        "value": "1312421643.37",
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        "shared": true
      },
      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES .125 07/15/2030",
        "value": "820054452.00",
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      },
      {
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      },
      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 0-1/8% 04/15/2027",
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      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 1-5/8% 10/15/27",
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      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 0-1/2% 01/15/2028",
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      },
      {
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      {
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      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 0-1/8% 10/15/2026",
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      {
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        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 0-1/8%  07/15/2026",
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      {
        "name": "OIS RECFIX USD 4.9005% 04-17-24/04-17-26 LCH",
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      },
      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 2-3/8% 01/15/27",
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        "shared": false
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      {
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      {
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      {
        "name": "JAPAN GOVT 30-YR",
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      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 0-7/8% 02/15/2047",
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      {
        "name": "CAPITAL GROUP CENTRAL CASH FUND",
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      },
      {
        "name": "U.S. Treasury Inflation-Indexed Notes",
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        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 0-3/4% 02/15/2045",
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      {
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      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 1% 02/15/46",
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      },
      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 1-3/4% 01/15/28",
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      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 2.375% 10/15/2028",
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      {
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      {
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      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 2 1/8% 02/15/40",
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      },
      {
        "name": "U.S. Treasury Inflation-Protected Indexed Bonds",
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      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 0-3/4% 02/15/2042",
        "value": "57833800.00",
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      },
      {
        "name": "U.S. Treasury Inflation Linked Bonds",
        "value": "44994769.80",
        "weight": "0.00312053",
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      },
      {
        "name": "AMGEN INC",
        "value": "43152696.00",
        "weight": "0.00299277",
        "shared": false
      },
      {
        "name": "FORD MOTOR CRED",
        "value": "36708140.00",
        "weight": "0.00254582",
        "shared": false
      },
      {
        "name": "AFRMT 2025-2A A 144A 4.67% 07-15-33",
        "value": "31954909.22",
        "weight": "0.00221617",
        "shared": false
      },
      {
        "name": "MS V4.892 10/22/36 I",
        "value": "29857380.00",
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        "shared": false
      },
      {
        "name": "IRV Trust, Series 2025-200P, Class A",
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    ],
    "b_top": [
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      {
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      {
        "name": "U.S. Treasury Inflation-Linked Notes",
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      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 1.375 07/15/33",
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      {
        "name": "U.S. Treasury Notes 0.125%, Due 1/15/2030",
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      {
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      },
      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 0-1/8% 04/15/2027",
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      },
      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 1.250 04/15/2028",
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        "shared": false
      },
      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 3-7/8% 04/15/29",
        "value": "21667566.19",
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      },
      {
        "name": "U.S. Treasury Inflation-Protected Indexed Bonds",
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      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 3-5/8% 04/15/28",
        "value": "18278261.90",
        "weight": "0.01836274",
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      {
        "name": "State Street Navigator Securities Lending Portfolio II",
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      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 1-3/8% 02/15/2044",
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      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 0-3/4% 02/15/2042",
        "value": "14801456.99",
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      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 0-3/4% 02/15/2045",
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      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 1-3/4% 01/15/28",
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      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 2 1/8% 02/15/40",
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      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 2-1/2% 01/15/29",
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      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 0-5/8% 02/15/2043",
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      {
        "name": "U.S. Treasury Inflation-Indexed Notes",
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      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 1% 02/15/46",
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      },
      {
        "name": "U.S. Treasury Inflation-Protected Indexed Bonds",
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      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 0-7/8% 02/15/2047",
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      },
      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 1% 02/15/48",
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      },
      {
        "name": "U.S. Treasury Inflation-Protected Notes 2.125%, Due 02/15/2054",
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      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 1.50% 2/15/2053",
        "value": "8410266.72",
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      {
        "name": "U.S. Treasury Inflation Linked Bonds",
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        "weight": "0.00816621",
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      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 0.25% 02/15/2050",
        "value": "6834935.73",
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        "shared": true
      },
      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 0-1/8%  02/15/2052",
        "value": "6746157.89",
        "weight": "0.00677734",
        "shared": false
      },
      {
        "name": "U.S. Treasury Inflation-Protected Indexed Bonds",
        "value": "6318928.71",
        "weight": "0.00634813",
        "shared": true
      },
      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 3-3/8% 04/15/32",
        "value": "6136518.02",
        "weight": "0.00616488",
        "shared": false
      },
      {
        "name": "UNITED STATES TREASURY INFLATION INDEXED BONDS I/L 2.375% 02-15-56",
        "value": "4373628.13",
        "weight": "0.00439384",
        "shared": false
      },
      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 0-1/8% 10/15/2026",
        "value": "0.03",
        "weight": "0.00000000",
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    ]
  },
  "error": null,
  "sources": [
    {
      "label": "N-PORT (fund A)",
      "accession_no": "0001193125-26-182046",
      "as_of": "2026-02-28",
      "edgar_url": "https://www.sec.gov/Archives/edgar/data/1553197/000119312526182046/0001193125-26-182046-index.htm"
    },
    {
      "label": "N-PORT (fund B)",
      "accession_no": "0001410368-26-055586",
      "as_of": "2026-03-31",
      "edgar_url": "https://www.sec.gov/Archives/edgar/data/1064642/000141036826055586/0001410368-26-055586-index.htm"
    }
  ]
}