{
  "page": "compare",
  "query": {
    "a": "MMCDX",
    "b": "FIXD"
  },
  "retrieved_at": "2026-07-07T19:08:26+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": "MassMutual Core Bond Fund",
    "ticker": "MMCDX",
    "slug": "MMCDX",
    "series_id": "S000003791",
    "html_url": "https://fundwatcher.app/funds/MMCDX/"
  },
  "fund_b": {
    "name": "First Trust Smith Opportunistic Fixed Income ETF",
    "ticker": "FIXD",
    "slug": "FIXD",
    "series_id": "S000056501",
    "html_url": "https://fundwatcher.app/funds/FIXD/"
  },
  "overlap": {
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    "coverage_b_by_a": "0.06076158282334304409977691351",
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    "as_of": {
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      "b": "2026-02-28"
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      {
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        "name": "State Street Navigator Securities Lending Government Money Market Portfolio",
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      {
        "name": "BGME Trust 2021-VR",
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        "name": "KREF Ltd., Series 2021-FL2, Class C",
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      {
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        "name": "Rad CLO 6 Ltd., Series 2019-6A, Class A1R",
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      {
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  "error": null,
  "sources": [
    {
      "label": "N-PORT (fund A)",
      "accession_no": "0001410368-26-053572",
      "as_of": "2026-03-31",
      "edgar_url": "https://www.sec.gov/Archives/edgar/data/927972/000141036826053572/0001410368-26-053572-index.htm"
    },
    {
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      "edgar_url": "https://www.sec.gov/Archives/edgar/data/1667919/000094040026014550/0000940400-26-014550-index.htm"
    }
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}