{
  "page": "compare",
  "query": {
    "a": "BYLD",
    "b": "ITDF"
  },
  "retrieved_at": "2026-07-07T18:41:53+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": "iShares Yield Optimized Bond ETF",
    "ticker": "BYLD",
    "slug": "BYLD",
    "series_id": "S000044409",
    "html_url": "https://fundwatcher.app/funds/BYLD/"
  },
  "fund_b": {
    "name": "iShares LifePath Target Date 2050 ETF",
    "ticker": "ITDF",
    "slug": "ITDF",
    "series_id": "S000082204",
    "html_url": "https://fundwatcher.app/funds/ITDF/"
  },
  "overlap": {
    "coverage_a_by_b": "0.1332623621295520494967419151",
    "coverage_b_by_a": "0.1332623621295520494967419151",
    "shared_count": 4,
    "as_of": {
      "a": "2026-01-31",
      "b": "2026-01-31"
    },
    "a_top": [
      {
        "name": "iShares Broad USD High Yield Corporate Bond ETF",
        "value": "62346933.64",
        "weight": "0.18263800",
        "shared": false
      },
      {
        "name": "iShares 10+ Year Investment Grade Corporate Bond ETF",
        "value": "35434239.68",
        "weight": "0.10380043",
        "shared": true
      },
      {
        "name": "ISHARES J P MORGAN EM HIGH YIELD BOND ETF",
        "value": "31364238.69",
        "weight": "0.09187784",
        "shared": false
      },
      {
        "name": "BlackRock Cash Funds: Institutional, SL Agency Shares",
        "value": "31279965.47",
        "weight": "0.09163097",
        "shared": true
      },
      {
        "name": "iShares Broad USD Investment Grade Corporate Bond ETF",
        "value": "31027342.44",
        "weight": "0.09089094",
        "shared": false
      },
      {
        "name": "ISHARES FLOATING RATE BOND ETF",
        "value": "30873993.92",
        "weight": "0.09044173",
        "shared": false
      },
      {
        "name": "iShares 5-10 Year Investment Grade Corporate Bond ETF",
        "value": "29798721.26",
        "weight": "0.08729184",
        "shared": true
      },
      {
        "name": "iShares Investment Grade Systematic Bond ETF",
        "value": "27128495.68",
        "weight": "0.07946973",
        "shared": false
      },
      {
        "name": "iShares GNMA Bond ETF",
        "value": "24787920.00",
        "weight": "0.07261329",
        "shared": false
      },
      {
        "name": "iShares Trust ISHARES 0-3 MONTH TREASURY BOND ETF",
        "value": "16938532.86",
        "weight": "0.04961944",
        "shared": false
      },
      {
        "name": "iShares Core Universal USD Bond ETF",
        "value": "13893442.95",
        "weight": "0.04069920",
        "shared": false
      },
      {
        "name": "ISHARES MBS ETF MUTUAL FUND",
        "value": "6197554.23",
        "weight": "0.01815501",
        "shared": false
      },
      {
        "name": "BlackRock Cash Funds: Treasury, SL Agency Shares",
        "value": "297526.89",
        "weight": "0.00087157",
        "shared": true
      }
    ],
    "b_top": [
      {
        "name": "ISHARES RUSSELL 1000 ETF MUTUAL FUND",
        "value": "28264906.64",
        "weight": "0.45107412",
        "shared": false
      },
      {
        "name": "iShares Core MSCI International Developed Markets ETF",
        "value": "13858278.84",
        "weight": "0.22116156",
        "shared": false
      },
      {
        "name": "BlackRock Cash Funds: Institutional, SL Agency Shares",
        "value": "7539083.29",
        "weight": "0.12031476",
        "shared": true
      },
      {
        "name": "ISHARES CORE MSCI EMERGING MUTUAL FUND",
        "value": "6249520.24",
        "weight": "0.09973487",
        "shared": false
      },
      {
        "name": "iShares 10+ Year Investment Grade Corporate Bond ETF",
        "value": "2297679.16",
        "weight": "0.03666821",
        "shared": true
      },
      {
        "name": "Russell 2000 ETF",
        "value": "1811318.40",
        "weight": "0.02890648",
        "shared": false
      },
      {
        "name": "iShares Core U.S. REIT ETF - Class USD INC",
        "value": "1481358.83",
        "weight": "0.02364072",
        "shared": false
      },
      {
        "name": "ISHR 1-5Y INV GR",
        "value": "365503.02",
        "weight": "0.00583299",
        "shared": false
      },
      {
        "name": "ISHARES 10 20 YEAR TREASURY BOND ETF",
        "value": "313029.60",
        "weight": "0.00499558",
        "shared": false
      },
      {
        "name": "iShares 5-10 Year Investment Grade Corporate Bond ETF",
        "value": "256385.47",
        "weight": "0.00409161",
        "shared": true
      },
      {
        "name": "ISHARES US TREASURY BOND ETF",
        "value": "148184.16",
        "weight": "0.00236484",
        "shared": false
      },
      {
        "name": "BlackRock Cash Funds: Treasury, SL Agency Shares",
        "value": "76087.43",
        "weight": "0.00121426",
        "shared": true
      }
    ]
  },
  "error": null,
  "sources": [
    {
      "label": "N-PORT (fund A)",
      "accession_no": "0002071691-26-007312",
      "as_of": "2026-01-31",
      "edgar_url": "https://www.sec.gov/Archives/edgar/data/1100663/000207169126007312/0002071691-26-007312-index.htm"
    },
    {
      "label": "N-PORT (fund B)",
      "accession_no": "0001004726-26-001918",
      "as_of": "2026-01-31",
      "edgar_url": "https://www.sec.gov/Archives/edgar/data/1100663/000100472626001918/0001004726-26-001918-index.htm"
    }
  ]
}