{
  "page": "compare",
  "query": {
    "a": "TSTRX",
    "b": "WFSPX"
  },
  "retrieved_at": "2026-07-07T19:41:49+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": "Transamerica Stock Index",
    "ticker": "TSTRX",
    "slug": "TSTRX",
    "series_id": "S000054675",
    "html_url": "https://fundwatcher.app/funds/TSTRX/"
  },
  "fund_b": {
    "name": "iShares S&P 500 Index Fund",
    "ticker": "WFSPX",
    "slug": "WFSPX",
    "series_id": "S000004272",
    "html_url": "https://fundwatcher.app/funds/WFSPX/"
  },
  "overlap": {
    "coverage_a_by_b": "1",
    "coverage_b_by_a": "1",
    "shared_count": 1,
    "as_of": {
      "a": "2026-03-31",
      "b": "2026-03-31"
    },
    "a_top": [
      {
        "name": "U.S. Total Bond Index Master Portfolio",
        "value": "174702583.10",
        "weight": "1.00000000",
        "shared": true
      }
    ],
    "b_top": [
      {
        "name": "U.S. Total Bond Index Master Portfolio",
        "value": "51319620911.00",
        "weight": "1.00000000",
        "shared": true
      }
    ]
  },
  "error": null,
  "sources": [
    {
      "label": "N-PORT (fund A)",
      "accession_no": "0001410368-26-051061",
      "as_of": "2026-03-31",
      "edgar_url": "https://www.sec.gov/Archives/edgar/data/787623/000141036826051061/0001410368-26-051061-index.htm"
    },
    {
      "label": "N-PORT (fund B)",
      "accession_no": "0001410368-26-054536",
      "as_of": "2026-03-31",
      "edgar_url": "https://www.sec.gov/Archives/edgar/data/893818/000141036826054536/0001410368-26-054536-index.htm"
    }
  ]
}