{
  "page": "compare",
  "query": {
    "a": "GCBLX",
    "b": "AFDIX"
  },
  "retrieved_at": "2026-07-07T15:58:15+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": "Green Century Balanced Fund",
    "ticker": "GCBLX",
    "slug": "GCBLX",
    "series_id": "S000007714",
    "html_url": "https://fundwatcher.app/funds/GCBLX/"
  },
  "fund_b": {
    "name": "Large Cap Equity Fund",
    "ticker": "AFDIX",
    "slug": "AFDIX",
    "series_id": "S000006203",
    "html_url": "https://fundwatcher.app/funds/AFDIX/"
  },
  "overlap": {
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    "coverage_b_by_a": "0.4008239423719925543645549816",
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    "as_of": {
      "a": "2026-04-30",
      "b": "2026-01-31"
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        "name": "MICROSOFT CORP",
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        "name": "MASTERCARD INC CL A",
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        "name": "UMB MONEY MARKET FIDUCIARY   /",
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        "name": "TJX COS INC",
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        "name": "BANK OF AMERICA CORPORATION",
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      {
        "name": "EXPORT DEV CAN",
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        "name": "KFW",
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        "name": "FIRST SOLAR INC",
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      {
        "name": "Bridge Housing Corporation 3.25%, Due 07/15/2030",
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        "weight": "0.00641652",
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      {
        "name": "NXP BV/NXP FDG",
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        "name": "NETFLIX INC",
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        "name": "PROGRESSIVE CORP OHIO",
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        "name": "United States International Development Finance Corporation",
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        "name": "NEXTERA ENERGY INC",
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      {
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        "name": "TESLA INC",
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      {
        "name": "INTL BUS MACH CORP",
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        "name": "JPMORGAN CHASE and CO",
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        "name": "SLB LTD",
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    ]
  },
  "error": null,
  "sources": [
    {
      "label": "N-PORT (fund A)",
      "accession_no": "0001193125-26-272429",
      "as_of": "2026-04-30",
      "edgar_url": "https://www.sec.gov/Archives/edgar/data/877232/000119312526272429/0001193125-26-272429-index.htm"
    },
    {
      "label": "N-PORT (fund B)",
      "accession_no": "0001193125-26-129677",
      "as_of": "2026-01-31",
      "edgar_url": "https://www.sec.gov/Archives/edgar/data/100334/000119312526129677/0001193125-26-129677-index.htm"
    }
  ]
}