{
  "page": "compare",
  "query": {
    "a": "BBCPX",
    "b": "PFIIX"
  },
  "retrieved_at": "2026-07-07T16:41:47+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": "Bridge Builder Core Plus Bond Fund",
    "ticker": "BBCPX",
    "slug": "BBCPX",
    "series_id": "S000049701",
    "html_url": "https://fundwatcher.app/funds/BBCPX/"
  },
  "fund_b": {
    "name": "PIMCO Low Duration Income Fund",
    "ticker": "PFIIX",
    "slug": "PFIIX",
    "series_id": "S000009677",
    "html_url": "https://fundwatcher.app/funds/PFIIX/"
  },
  "overlap": {
    "coverage_a_by_b": "0.1634595202874364737148704661",
    "coverage_b_by_a": "0.1634595202874364737148704658",
    "shared_count": 392,
    "as_of": {
      "a": "2026-03-31",
      "b": "2026-03-31"
    },
    "a_top": [
      {
        "name": "MONEY MARKET FUND",
        "value": "3029603782.59",
        "weight": "0.04497345",
        "shared": false
      },
      {
        "name": "FUTURE CONTRACT ON           US 10YR ULTRA FUT JUN26 0.00000000",
        "value": "2535030937.51",
        "weight": "0.03763168",
        "shared": false
      },
      {
        "name": "FUTURE CONTRACT ON           US 5YR NOTE (CBT) JUN26 0.00000000",
        "value": "1709996328.22",
        "weight": "0.02538432",
        "shared": false
      },
      {
        "name": "FUTURE CONTRACT ON           US 2YR NOTE (CBT) JUN26 0.00000000",
        "value": "1704785574.02",
        "weight": "0.02530697",
        "shared": false
      },
      {
        "name": "U.S. Treasury Notes",
        "value": "1611187588.94",
        "weight": "0.02391754",
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      },
      {
        "name": "FUTURE CONTRACT ON           US ULTRA BOND CBT JUN26 0.00000000",
        "value": "1509950625.00",
        "weight": "0.02241471",
        "shared": false
      },
      {
        "name": "Uniform Mortgage-Backed Security, TBA",
        "value": "1491566306.83",
        "weight": "0.02214180",
        "shared": true
      },
      {
        "name": "Uniform Mortgage-Backed Security, TBA",
        "value": "770788308.58",
        "weight": "0.01144209",
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      },
      {
        "name": "FNCL 6 6/24",
        "value": "747462683.70",
        "weight": "0.01109583",
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      },
      {
        "name": "US TREASURY N/B",
        "value": "723761850.63",
        "weight": "0.01074400",
        "shared": true
      },
      {
        "name": "FUTURE CONTRACT ON           LONG GILT FUTURE  JUN26 /GBP/ 0.00000000",
        "value": "688826731.50",
        "weight": "0.01022540",
        "shared": false
      },
      {
        "name": "RC R/P BOFA S  3.690% 04/01/26 3.69000000",
        "value": "674900000.00",
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        "shared": false
      },
      {
        "name": "FNCL 6.5 6/24",
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      },
      {
        "name": "US TREASURY N/B",
        "value": "643008053.60",
        "weight": "0.00954524",
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      },
      {
        "name": "FUTURE CONTRACT ON           AUST 10Y BOND FUT JUN26 /AUD/ 0.00000000",
        "value": "550596958.75",
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      },
      {
        "name": "FUTURE CONTRACT ON           US 10YR NOTE (CBT)JUN26 0.00000000",
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      },
      {
        "name": "US TREASURY N/B",
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      },
      {
        "name": "FNCL 6 7/25",
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      },
      {
        "name": "FNCL 3.5 4/26",
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      {
        "name": "Government National Mortgage Association, TBA",
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      {
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      },
      {
        "name": "Uniform Mortgage-Backed Security, TBA",
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      },
      {
        "name": "US TREASURY N/B",
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      {
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      {
        "name": "U.S. Treasury Inflation-Protected Indexed Notes",
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      },
      {
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      },
      {
        "name": "FNCL 4 4/26",
        "value": "347753585.23",
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      },
      {
        "name": "RC R/P CITIGR  3.720% 04/01/26 3.72000000",
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      },
      {
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      },
      {
        "name": "U.S. Treasury Notes",
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      },
      {
        "name": "LETRA TESOURO NACIONAL /BRL/ REGD ZCP SER LTN 0.00000000",
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      },
      {
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        "name": "US ULTRA BOND CBT Sep25",
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      {
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      {
        "name": "US TREASURY N/B",
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      },
      {
        "name": "U.S. Treasury Bills",
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        "name": "RPLDCI 6.581 05/30/49 144A",
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      },
      {
        "name": "FN FA0497",
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      },
      {
        "name": "FNCL 3 5/26",
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      },
      {
        "name": "US TREASURY N/B",
        "value": "257744419.22",
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      {
        "name": "US TREASURY N/B",
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      {
        "name": "FNCL 4 6/24",
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      {
        "name": "US TREASURY N/B",
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      {
        "name": "Uniform Mortgage-Backed Security, TBA",
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    ],
    "b_top": [
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      {
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      {
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      {
        "name": "US ULTRA BOND CBT Sep25",
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      {
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      {
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      {
        "name": "FNCL 5 6/24",
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      },
      {
        "name": "LETRA TESOURO NACIONAL BILLS 07/26 0.00000",
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      },
      {
        "name": "Uniform Mortgage-Backed Security, TBA",
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      },
      {
        "name": "Government National Mortgage Association, TBA",
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      },
      {
        "name": "Government National Mortgage Association, TBA",
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      {
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      {
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      {
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      },
      {
        "name": "CITIGROUP MORTGAGE LOAN TRUST CMLTI 2022 RP1 PT 144A",
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      {
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      {
        "name": "GS MORTGAGE BACKED SECURITIES GSMBS 2022 RPL4 PT 144A",
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      {
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      {
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      {
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      },
      {
        "name": "FED HM LN PC POOL RA4240 FR 01/51 FIXED 2.5",
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      {
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      {
        "name": "JP MORGAN MORTGAGE TRUST JPMMT 2025 CES3 PT 144A",
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      },
      {
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      {
        "name": "GS MORTGAGE BACKED SECURITIES GSMBS 2022 RPL1 A5 144A",
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      },
      {
        "name": "RFR USD SOFR/1.75000 06/15/22-30Y LCH",
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      },
      {
        "name": "FINANCE OF AMERICA STRUCTURED SECURITIES TRUST SER",
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      },
      {
        "name": "UPCT 2026 2P CERT",
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      },
      {
        "name": "Uniform Mortgage-Backed Security, TBA",
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      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 1.375 07/15/33",
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      {
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      },
      {
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      },
      {
        "name": "Uniform Mortgage-Backed Security, TBA",
        "value": "85187178.61",
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      {
        "name": "SMB Private Education Loan Trust 2026-B",
        "value": "82699665.16",
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      },
      {
        "name": "RFRF USD SF+26.161/1.70 8/01/23-29Y* CME",
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      },
      {
        "name": "US TREASURY N/B",
        "value": "81841828.13",
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      },
      {
        "name": "FNCL 5 4/26",
        "value": "78134461.95",
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      },
      {
        "name": "Eagle Funding LuxCo S.a.r.l.",
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      },
      {
        "name": "PROJECT CASHMERE CLASS A1 144A",
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      },
      {
        "name": "VALERIE ASSET LTD 09/50 1",
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      },
      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 0-1/8% 07/15/2031",
        "value": "71378421.81",
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      },
      {
        "name": "RFRF USD SF+26.161/1.90 05/18/22-10Y LCH",
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      },
      {
        "name": "FINANCE OF AMERICA STRUCTURED FASST 2025 S2 A1 144A",
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      },
      {
        "name": "G2SF 5 5/26",
        "value": "68204181.60",
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    ]
  },
  "error": null,
  "sources": [
    {
      "label": "N-PORT (fund A)",
      "accession_no": "0001003715-26-001895",
      "as_of": "2026-03-31",
      "edgar_url": "https://www.sec.gov/Archives/edgar/data/1567101/000100371526001895/0001003715-26-001895-index.htm"
    },
    {
      "label": "N-PORT (fund B)",
      "accession_no": "0001099263-26-007247",
      "as_of": "2026-03-31",
      "edgar_url": "https://www.sec.gov/Archives/edgar/data/810893/000109926326007247/0001099263-26-007247-index.htm"
    }
  ]
}