{
  "page": "compare",
  "query": {
    "a": "MFBCX",
    "b": "MIGAX"
  },
  "retrieved_at": "2026-07-07T18:31:28+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": "MFS Corporate Bond Fund",
    "ticker": "MFBCX",
    "slug": "MFBCX",
    "series_id": "S000002492",
    "html_url": "https://fundwatcher.app/funds/MFBCX/"
  },
  "fund_b": {
    "name": "Corporate Bond Portfolio",
    "ticker": "MIGAX",
    "slug": "MIGAX",
    "series_id": "S000004118",
    "html_url": "https://fundwatcher.app/funds/MIGAX/"
  },
  "overlap": {
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    "coverage_b_by_a": "0.07366333855685536008527817154",
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    "as_of": {
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      "b": "2026-03-31"
    },
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      },
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        "name": "ESSENT GROUP LTD",
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      },
      {
        "name": "MPLX LP",
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      {
        "name": "TRANS-ALLEGHENY",
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      {
        "name": "Vistra Operations Co. LLC",
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      {
        "name": "GLP Capital LP / GLP Financing II Inc",
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    ]
  },
  "error": null,
  "sources": [
    {
      "label": "N-PORT (fund A)",
      "accession_no": "0002071691-26-015565",
      "as_of": "2026-04-30",
      "edgar_url": "https://www.sec.gov/Archives/edgar/data/63075/000207169126015565/0002071691-26-015565-index.htm"
    },
    {
      "label": "N-PORT (fund B)",
      "accession_no": "0001410368-26-054370",
      "as_of": "2026-03-31",
      "edgar_url": "https://www.sec.gov/Archives/edgar/data/741375/000141036826054370/0001410368-26-054370-index.htm"
    }
  ]
}