{
  "page": "compare",
  "query": {
    "a": "PRTIX",
    "b": "IEF"
  },
  "retrieved_at": "2026-07-07T17:39:49+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": "T. Rowe Price U.S. Treasury Intermediate Index Fund",
    "ticker": "PRTIX",
    "slug": "PRTIX",
    "series_id": "S000002167",
    "html_url": "https://fundwatcher.app/funds/PRTIX/"
  },
  "fund_b": {
    "name": "iShares 7-10 Year Treasury Bond ETF",
    "ticker": "IEF",
    "slug": "IEF",
    "series_id": "S000004358",
    "html_url": "https://fundwatcher.app/funds/IEF/"
  },
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    "coverage_b_by_a": "0.2921483683391340442631958405",
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    "as_of": {
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      "b": "2026-02-28"
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        "name": "GINNIE MAE II POOL",
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        "name": "GINNIE MAE I POOL",
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        "name": "GNMA II POOL 004145 G2 05/38 FIXED 6",
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  },
  "error": null,
  "sources": [
    {
      "label": "N-PORT (fund A)",
      "accession_no": "0001099263-26-004397",
      "as_of": "2026-02-28",
      "edgar_url": "https://www.sec.gov/Archives/edgar/data/853437/000109926326004397/0001099263-26-004397-index.htm"
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    {
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      "edgar_url": "https://www.sec.gov/Archives/edgar/data/1100663/000207169126008199/0002071691-26-008199-index.htm"
    }
  ]
}