{
  "page": "compare",
  "query": {
    "a": "TILUX",
    "b": "FIPDX"
  },
  "retrieved_at": "2026-07-07T19:06:18+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": "Inflation-Linked Fixed Income Fund",
    "ticker": "TILUX",
    "slug": "TILUX",
    "series_id": "S000052236",
    "html_url": "https://fundwatcher.app/funds/TILUX/"
  },
  "fund_b": {
    "name": "Fidelity Inflation-Protected Bond Index Fund",
    "ticker": "FIPDX",
    "slug": "FIPDX",
    "series_id": "S000037003",
    "html_url": "https://fundwatcher.app/funds/FIPDX/"
  },
  "overlap": {
    "coverage_a_by_b": "0.5798524683351015326441028679",
    "coverage_b_by_a": "0.5798524683351015326441028678",
    "shared_count": 47,
    "as_of": {
      "a": "2026-02-28",
      "b": "2026-03-31"
    },
    "a_top": [
      {
        "name": "FUTURE CONTRACT ON           US 5YR NOTE (CBT) JUN26 0.00000000",
        "value": "12556031.25",
        "weight": "0.05153995",
        "shared": false
      },
      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 1.125% 01/15/2033",
        "value": "10808268.70",
        "weight": "0.04436574",
        "shared": true
      },
      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 0-5/8% 07/15/2032",
        "value": "9115775.22",
        "weight": "0.03741840",
        "shared": true
      },
      {
        "name": "FUTURE CONTRACT ON           US 10YR ULTRA FUT JUN26 0.00000000",
        "value": "8988546.88",
        "weight": "0.03689615",
        "shared": false
      },
      {
        "name": "Uniform Mortgage-Backed Security, TBA",
        "value": "7716256.24",
        "weight": "0.03167366",
        "shared": false
      },
      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 1.375 07/15/33",
        "value": "7144663.51",
        "weight": "0.02932739",
        "shared": true
      },
      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 1-5/8% 10/15/27",
        "value": "6672767.91",
        "weight": "0.02739035",
        "shared": true
      },
      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 2.375% 10/15/2028",
        "value": "6169013.72",
        "weight": "0.02532254",
        "shared": true
      },
      {
        "name": "U.S. Treasury Inflation-Protected Indexed Notes",
        "value": "6162434.96",
        "weight": "0.02529554",
        "shared": true
      },
      {
        "name": "U.S. Treasury Notes",
        "value": "5773198.20",
        "weight": "0.02369780",
        "shared": true
      },
      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 0-1/8% 07/15/2031",
        "value": "5629601.53",
        "weight": "0.02310837",
        "shared": true
      },
      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 0-1/2% 01/15/2028",
        "value": "5323189.53",
        "weight": "0.02185061",
        "shared": true
      },
      {
        "name": "U.S. Treasury Inflation-Protected Security 0.375%, due 01/15/27",
        "value": "5258656.09",
        "weight": "0.02158571",
        "shared": false
      },
      {
        "name": "FUTURE CONTRACT ON           EURO-BUND FUTURE  MAR26 /EUR/ 0.00000000",
        "value": "5231912.07",
        "weight": "0.02147593",
        "shared": false
      },
      {
        "name": "U.S. Treasury Inflation-Linked Notes",
        "value": "5027815.30",
        "weight": "0.02063816",
        "shared": true
      },
      {
        "name": "U.S. Treasury Inflation-Protected Indexed Notes",
        "value": "4961183.04",
        "weight": "0.02036464",
        "shared": true
      },
      {
        "name": "U.S. Treasury Inflation-Protected Indexed Notes",
        "value": "4816360.84",
        "weight": "0.01977018",
        "shared": true
      },
      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 0-3/4% 07/15/2028",
        "value": "4663348.75",
        "weight": "0.01914209",
        "shared": true
      },
      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 0-1/8%  01/15/32",
        "value": "4159194.05",
        "weight": "0.01707264",
        "shared": true
      },
      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 0-3/8% 07/15/2027",
        "value": "3982528.13",
        "weight": "0.01634747",
        "shared": true
      },
      {
        "name": "Government National Mortgage Association",
        "value": "3672277.14",
        "weight": "0.01507395",
        "shared": false
      },
      {
        "name": "FR SD8409",
        "value": "3259576.96",
        "weight": "0.01337990",
        "shared": false
      },
      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES .875% 01/15/2029",
        "value": "3190757.81",
        "weight": "0.01309741",
        "shared": true
      },
      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 3-5/8% 04/15/28",
        "value": "3158182.49",
        "weight": "0.01296369",
        "shared": true
      },
      {
        "name": "US ULTRA BOND CBT Sep25",
        "value": "3017183.76",
        "weight": "0.01238492",
        "shared": false
      },
      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES .25%  07/15/29",
        "value": "2937561.44",
        "weight": "0.01205809",
        "shared": true
      },
      {
        "name": "UNITED KINGDOM GILT /GBP/ REGD REG S 4.00000000",
        "value": "2851913.10",
        "weight": "0.01170652",
        "shared": false
      },
      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 0-1/8% 04/15/2027",
        "value": "2846709.86",
        "weight": "0.01168516",
        "shared": true
      },
      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 3-7/8% 04/15/29",
        "value": "2674585.80",
        "weight": "0.01097863",
        "shared": true
      },
      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES .125 07/15/2030",
        "value": "2641627.68",
        "weight": "0.01084334",
        "shared": true
      },
      {
        "name": "FUTURE CONTRACT ON           US LONG BOND(CBT) JUN26 0.00000000",
        "value": "2606312.50",
        "weight": "0.01069838",
        "shared": false
      },
      {
        "name": "GOVERNMENT NATIONAL MORTGAGE ASSOCIATION SER 2023-H19 CL FA V/R 4.99888000",
        "value": "2528645.78",
        "weight": "0.01037957",
        "shared": false
      },
      {
        "name": "U.S. Treasury Notes",
        "value": "2495979.27",
        "weight": "0.01024549",
        "shared": true
      },
      {
        "name": "FUTURE CONTRACT ON           EURO-BTP FUTURE   MAR26 /EUR/ 0.00000000",
        "value": "2467712.50",
        "weight": "0.01012946",
        "shared": false
      },
      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 0-1/8% 01/15/2031",
        "value": "2384210.33",
        "weight": "0.00978670",
        "shared": true
      },
      {
        "name": "U.S. Treasury Inflation-Protected Notes 1.75%, Due 01/15/2034",
        "value": "2362790.86",
        "weight": "0.00969877",
        "shared": true
      },
      {
        "name": "U.S. Treasury Notes 0.125%, Due 1/15/2030",
        "value": "2360436.68",
        "weight": "0.00968911",
        "shared": true
      },
      {
        "name": "Uniform Mortgage-Backed Security, TBA",
        "value": "2236350.56",
        "weight": "0.00917976",
        "shared": false
      },
      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 1-3/4% 01/15/28",
        "value": "2197226.63",
        "weight": "0.00901917",
        "shared": true
      },
      {
        "name": "FNCL 6.5 4/26",
        "value": "2078439.70",
        "weight": "0.00853157",
        "shared": false
      },
      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 0-1/8% 10/15/2026",
        "value": "2020125.87",
        "weight": "0.00829220",
        "shared": false
      },
      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 1-3/8% 02/15/2044",
        "value": "2014001.49",
        "weight": "0.00826707",
        "shared": true
      },
      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 0-3/4% 02/15/2045",
        "value": "2002207.75",
        "weight": "0.00821865",
        "shared": true
      },
      {
        "name": "RC R/P BNP PA  3.730% 03/02/26 3.73000000",
        "value": "2000000.00",
        "weight": "0.00820959",
        "shared": false
      },
      {
        "name": "FUTURE CONTRACT ON           US ULTRA BOND CBT JUN26 0.00000000",
        "value": "1945500.00",
        "weight": "0.00798588",
        "shared": false
      },
      {
        "name": "FUTURE CONTRACT ON           AUST 10Y BOND FUT MAR26 /AUD/ 0.00000000",
        "value": "1888398.18",
        "weight": "0.00775149",
        "shared": false
      },
      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 1.50% 2/15/2053",
        "value": "1769718.67",
        "weight": "0.00726433",
        "shared": true
      },
      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 2-1/2% 01/15/29",
        "value": "1720937.59",
        "weight": "0.00706410",
        "shared": true
      },
      {
        "name": "U.S. Treasury Inflation-Protected Notes 2.125%, Due 02/15/2054",
        "value": "1675797.12",
        "weight": "0.00687881",
        "shared": true
      },
      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 0-3/4% 02/15/2042",
        "value": "1620075.87",
        "weight": "0.00665008",
        "shared": true
      }
    ],
    "b_top": [
      {
        "name": "U.S. Treasury Inflation-Protected Indexed Notes",
        "value": "461554001.81",
        "weight": "0.04048995",
        "shared": true
      },
      {
        "name": "U.S. Treasury Inflation-Protected Indexed Notes",
        "value": "456821049.64",
        "weight": "0.04007475",
        "shared": true
      },
      {
        "name": "U.S. Treasury Notes",
        "value": "453279507.52",
        "weight": "0.03976407",
        "shared": true
      },
      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 1.375 07/15/33",
        "value": "416931858.57",
        "weight": "0.03657546",
        "shared": true
      },
      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 0-5/8% 07/15/2032",
        "value": "401589206.97",
        "weight": "0.03522952",
        "shared": true
      },
      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 0-1/8% 04/15/2027",
        "value": "390744824.08",
        "weight": "0.03427820",
        "shared": true
      },
      {
        "name": "U.S. Treasury Inflation-Protected Indexed Notes",
        "value": "375953379.03",
        "weight": "0.03298061",
        "shared": true
      },
      {
        "name": "U.S. Treasury Inflation-Protected Notes 1.75%, Due 01/15/2034",
        "value": "372052977.54",
        "weight": "0.03263845",
        "shared": true
      },
      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 0-1/8% 01/15/2031",
        "value": "369294282.44",
        "weight": "0.03239644",
        "shared": true
      },
      {
        "name": "U.S. Treasury Notes",
        "value": "354557038.98",
        "weight": "0.03110361",
        "shared": true
      },
      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 2.375% 10/15/2028",
        "value": "354423997.32",
        "weight": "0.03109194",
        "shared": true
      },
      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 1.125% 01/15/2033",
        "value": "352960991.65",
        "weight": "0.03096360",
        "shared": true
      },
      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES .125 07/15/2030",
        "value": "351589797.67",
        "weight": "0.03084331",
        "shared": true
      },
      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 0-1/8% 07/15/2031",
        "value": "341802161.52",
        "weight": "0.02998469",
        "shared": true
      },
      {
        "name": "U.S. Treasury Notes",
        "value": "337233680.40",
        "weight": "0.02958392",
        "shared": true
      },
      {
        "name": "U.S. Treasury Notes 0.125%, Due 1/15/2030",
        "value": "325615098.62",
        "weight": "0.02856467",
        "shared": true
      },
      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 1.250 04/15/2028",
        "value": "323731099.34",
        "weight": "0.02839940",
        "shared": true
      },
      {
        "name": "U.S. Treasury Inflation-Linked Notes",
        "value": "320839539.72",
        "weight": "0.02814574",
        "shared": true
      },
      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES .25%  07/15/29",
        "value": "317971022.15",
        "weight": "0.02789410",
        "shared": true
      },
      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 0-1/2% 01/15/2028",
        "value": "316444638.82",
        "weight": "0.02776019",
        "shared": true
      },
      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 1-5/8% 10/15/27",
        "value": "315170838.19",
        "weight": "0.02764845",
        "shared": true
      },
      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 0-1/8%  01/15/32",
        "value": "307300174.64",
        "weight": "0.02695799",
        "shared": true
      },
      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 0-3/4% 07/15/2028",
        "value": "274136731.60",
        "weight": "0.02404872",
        "shared": true
      },
      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 0-3/8% 07/15/2027",
        "value": "237738022.92",
        "weight": "0.02085563",
        "shared": true
      },
      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 3-5/8% 04/15/28",
        "value": "201963633.70",
        "weight": "0.01771732",
        "shared": true
      },
      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES .875% 01/15/2029",
        "value": "190578190.66",
        "weight": "0.01671852",
        "shared": true
      },
      {
        "name": "U.S. Treasury Inflation-Indexed Notes",
        "value": "168448424.83",
        "weight": "0.01477718",
        "shared": true
      },
      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 2-1/2% 01/15/29",
        "value": "158814981.43",
        "weight": "0.01393209",
        "shared": true
      },
      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 1-3/8% 02/15/2044",
        "value": "157047120.15",
        "weight": "0.01377700",
        "shared": true
      },
      {
        "name": "U.S. Treasury Inflation-Protected Indexed Bonds",
        "value": "150384294.82",
        "weight": "0.01319250",
        "shared": true
      },
      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 3-7/8% 04/15/29",
        "value": "146361493.62",
        "weight": "0.01283960",
        "shared": true
      },
      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 0-3/4% 02/15/2045",
        "value": "140682386.68",
        "weight": "0.01234140",
        "shared": true
      },
      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 1.50% 2/15/2053",
        "value": "128827105.48",
        "weight": "0.01130139",
        "shared": true
      },
      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 0-3/4% 02/15/2042",
        "value": "128818748.59",
        "weight": "0.01130066",
        "shared": true
      },
      {
        "name": "Fidelity Securities Lending Cash Central Fund",
        "value": "125312500.00",
        "weight": "0.01099307",
        "shared": false
      },
      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 0-7/8% 02/15/2047",
        "value": "109321510.99",
        "weight": "0.00959026",
        "shared": true
      },
      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 0-5/8% 02/15/2043",
        "value": "105215318.08",
        "weight": "0.00923004",
        "shared": true
      },
      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 3-3/8% 04/15/32",
        "value": "103838677.66",
        "weight": "0.00910928",
        "shared": true
      },
      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 0.25% 02/15/2050",
        "value": "90829348.29",
        "weight": "0.00796803",
        "shared": true
      },
      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 1-3/4% 01/15/28",
        "value": "90100664.05",
        "weight": "0.00790411",
        "shared": true
      },
      {
        "name": "U.S. Treasury Inflation-Protected Indexed Bonds",
        "value": "88804469.22",
        "weight": "0.00779040",
        "shared": true
      },
      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 0-1/8%  02/15/2052",
        "value": "79131589.93",
        "weight": "0.00694184",
        "shared": true
      },
      {
        "name": "U.S. Treasury Inflation-Protected Notes 2.125%, Due 02/15/2054",
        "value": "78449765.15",
        "weight": "0.00688203",
        "shared": true
      },
      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 2 1/8% 02/15/40",
        "value": "74462889.53",
        "weight": "0.00653228",
        "shared": true
      },
      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 1% 02/15/48",
        "value": "73146822.86",
        "weight": "0.00641683",
        "shared": true
      },
      {
        "name": "UNITED STATES TREASURY INFLATION INDEXED BONDS I/L 2.375% 02-15-56",
        "value": "65587185.08",
        "weight": "0.00575365",
        "shared": false
      },
      {
        "name": "U.S. Treasury Inflation-Protected Indexed Bonds",
        "value": "63028523.43",
        "weight": "0.00552919",
        "shared": true
      },
      {
        "name": "Fidelity Cash Central Fund",
        "value": "61658471.96",
        "weight": "0.00540901",
        "shared": false
      },
      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 1% 02/15/46",
        "value": "60947178.16",
        "weight": "0.00534661",
        "shared": true
      },
      {
        "name": "U.S. Treasury Inflation Linked Bonds",
        "value": "27725985.55",
        "weight": "0.00243227",
        "shared": true
      }
    ]
  },
  "error": null,
  "sources": [
    {
      "label": "N-PORT (fund A)",
      "accession_no": "0001003715-26-001533",
      "as_of": "2026-02-28",
      "edgar_url": "https://www.sec.gov/Archives/edgar/data/875186/000100371526001533/0001003715-26-001533-index.htm"
    },
    {
      "label": "N-PORT (fund B)",
      "accession_no": "0000035402-26-003383",
      "as_of": "2026-03-31",
      "edgar_url": "https://www.sec.gov/Archives/edgar/data/35315/000003540226003383/0000035402-26-003383-index.htm"
    }
  ]
}