{
  "page": "compare",
  "query": {
    "a": "VTWNX",
    "b": "VTTSX"
  },
  "retrieved_at": "2026-07-07T14:46:48+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": "VANGUARD TARGET RETIREMENT 2020 FUND",
    "ticker": "VTWNX",
    "slug": "VTWNX",
    "series_id": "S000012759",
    "html_url": "https://fundwatcher.app/funds/VTWNX/"
  },
  "fund_b": {
    "name": "VANGUARD TARGET RETIREMENT 2060 FUND",
    "ticker": "VTTSX",
    "slug": "VTTSX",
    "series_id": "S000035453",
    "html_url": "https://fundwatcher.app/funds/VTTSX/"
  },
  "overlap": {
    "coverage_a_by_b": "0.4424965887910412791287503925",
    "coverage_b_by_a": "0.4424965887910412791287503926",
    "shared_count": 5,
    "as_of": {
      "a": "2026-03-31",
      "b": "2026-03-31"
    },
    "a_top": [
      {
        "name": "VANG-TB II-INV",
        "value": "11966149189.07",
        "weight": "0.35461914",
        "shared": true
      },
      {
        "name": "VANG-T ST M-INS+",
        "value": "6788938117.60",
        "weight": "0.20119149",
        "shared": true
      },
      {
        "name": "VANG-S/T INF-ADM",
        "value": "5064200360.36",
        "weight": "0.15007855",
        "shared": false
      },
      {
        "name": "VANG-TTL INT-INS",
        "value": "5055729135.97",
        "weight": "0.14982751",
        "shared": true
      },
      {
        "name": "VANG-TO INT-INV",
        "value": "4665813696.61",
        "weight": "0.13827229",
        "shared": true
      },
      {
        "name": "Vanguard Market Liquidity Fund",
        "value": "202833884.18",
        "weight": "0.00601102",
        "shared": true
      }
    ],
    "b_top": [
      {
        "name": "VANG-T ST M-INS+",
        "value": "21437161771.47",
        "weight": "0.52638089",
        "shared": true
      },
      {
        "name": "VANG-TO INT-INV",
        "value": "15089241772.36",
        "weight": "0.37051027",
        "shared": true
      },
      {
        "name": "VANG-TB II-INV",
        "value": "2763296030.62",
        "weight": "0.06785162",
        "shared": true
      },
      {
        "name": "VANG-TTL INT-INS",
        "value": "1187971624.16",
        "weight": "0.02917017",
        "shared": true
      },
      {
        "name": "Vanguard Market Liquidity Fund",
        "value": "247898768.04",
        "weight": "0.00608705",
        "shared": true
      }
    ]
  },
  "error": null,
  "sources": [
    {
      "label": "N-PORT (fund A)",
      "accession_no": "0000752177-26-000227",
      "as_of": "2026-03-31",
      "edgar_url": "https://www.sec.gov/Archives/edgar/data/752177/000075217726000227/0000752177-26-000227-index.htm"
    },
    {
      "label": "N-PORT (fund B)",
      "accession_no": "0000752177-26-000231",
      "as_of": "2026-03-31",
      "edgar_url": "https://www.sec.gov/Archives/edgar/data/752177/000075217726000231/0000752177-26-000231-index.htm"
    }
  ]
}