{
  "page": "compare",
  "query": {
    "a": "MUSBX",
    "b": "CMVIX"
  },
  "retrieved_at": "2026-07-07T18:17:31+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 Blended Research Core Equity Fund",
    "ticker": "MUSBX",
    "slug": "MUSBX",
    "series_id": "S000002500",
    "html_url": "https://fundwatcher.app/funds/MUSBX/"
  },
  "fund_b": {
    "name": "BlackRock Advantage Large Cap Growth Fund",
    "ticker": "CMVIX",
    "slug": "CMVIX",
    "series_id": "S000001871",
    "html_url": "https://fundwatcher.app/funds/CMVIX/"
  },
  "overlap": {
    "coverage_a_by_b": "0.5277531388450257248548298407",
    "coverage_b_by_a": "0.5277531388450257248548298408",
    "shared_count": 52,
    "as_of": {
      "a": "2026-03-31",
      "b": "2026-02-27"
    },
    "a_top": [
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      },
      {
        "name": "MICROSOFT CORP",
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      },
      {
        "name": "AMAZON.COM INC",
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      {
        "name": "META PLATFORMS INC CL A",
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      {
        "name": "BROADCOM INC",
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      },
      {
        "name": "ALPHABET INC CL A",
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      },
      {
        "name": "LAM RESEARCH CORP",
        "value": "32167794.96",
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      },
      {
        "name": "ALPHABET INC CL C",
        "value": "31584146.58",
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      },
      {
        "name": "VISA INC-CLASS A",
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      },
      {
        "name": "MASTERCARD INC CL A",
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        "name": "CITIGROUP INC",
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      {
        "name": "MCKESSON CORP",
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        "name": "EDISON INTL",
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        "name": "NORTHERN TRUST CORP",
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      {
        "name": "AMERIPRISE FINANCIAL INC",
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      {
        "name": "ARAMARK",
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      {
        "name": "THE CIGNA GROUP",
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      },
      {
        "name": "PG&E CORP",
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      },
      {
        "name": "ARISTA NETWORKS INC",
        "value": "18369238.58",
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      {
        "name": "SALESFORCE INC",
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      {
        "name": "POPULAR INC",
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      {
        "name": "NETFLIX INC",
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      {
        "name": "ALTRIA GROUP INC",
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        "name": "GE VERNOVA LLC",
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      {
        "name": "OKTA INC CL A",
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      {
        "name": "TESLA INC",
        "value": "14619440.50",
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      {
        "name": "KLA CORP",
        "value": "14547410.80",
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      {
        "name": "VALERO ENERGY CORP",
        "value": "13795958.88",
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      {
        "name": "EOG RESOURCES INC",
        "value": "13755980.07",
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      {
        "name": "THE BOOKING HOLDINGS INC",
        "value": "12487809.12",
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      {
        "name": "SPOTIFY TECHNOLOGY SA",
        "value": "11647053.29",
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        "name": "AGCO CORP",
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      {
        "name": "WP CAREY INC",
        "value": "10859464.32",
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      {
        "name": "EATON CORP PLC",
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        "name": "WELLS FARGO & CO",
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        "name": "AMPHENOL CORPORATION CL A",
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      {
        "name": "DOLLAR GENERAL CORP",
        "value": "9567144.67",
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        "name": "BERKSHIRE HATH-B",
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      {
        "name": "PHILIP MORRIS INTL INC",
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      {
        "name": "ALPHABET INC CL A",
        "value": "62496968.40",
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      {
        "name": "TESLA INC",
        "value": "54111029.34",
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      {
        "name": "ALPHABET INC CL C",
        "value": "46390924.23",
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      {
        "name": "LILLY ELI and CO",
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      {
        "name": "NETFLIX INC",
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      {
        "name": "VISA INC-CLASS A",
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      {
        "name": "ADV MICRO DEVICE",
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        "name": "MASTERCARD INC CL A",
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      {
        "name": "ABBVIE INC",
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      {
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      {
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      {
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      {
        "name": "AMPHENOL CORPORATION CL A",
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      {
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        "name": "THE BOOKING HOLDINGS INC",
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      {
        "name": "APPLIED MATERIALS INC",
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      {
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      {
        "name": "MCKESSON CORP",
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      {
        "name": "COCA-COLA CO/THE",
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      {
        "name": "INTUITIVE SURGICAL INC",
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      {
        "name": "ADOBE INC",
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      {
        "name": "KLA CORP",
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      {
        "name": "VERTEX PHARMACEUTICALS INC",
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      {
        "name": "CINTAS CORP",
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      {
        "name": "AMGEN INC",
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      {
        "name": "PARKER HANNIFIN CORP",
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      {
        "name": "ARISTA NETWORKS INC",
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        "name": "STRYKER CORP",
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        "name": "TRANE TECHNOLOGIES PLC",
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        "name": "TEXAS INSTRUMENTS INC",
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        "name": "INTUIT INC",
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      {
        "name": "MOTOROLA SOLUTIONS INC",
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      {
        "name": "KEYSIGHT TECHNOLOGIES INC",
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      {
        "name": "ILLINOIS TOOL WORKS INC",
        "value": "6923678.49",
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      },
      {
        "name": "CADENCE DESIGN SYSTEMS INC",
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      },
      {
        "name": "NETAPP INC",
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      {
        "name": "AUTODESK INC",
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    ]
  },
  "error": null,
  "sources": [
    {
      "label": "N-PORT (fund A)",
      "accession_no": "0001410368-26-050731",
      "as_of": "2026-03-31",
      "edgar_url": "https://www.sec.gov/Archives/edgar/data/911637/000141036826050731/0001410368-26-050731-index.htm"
    },
    {
      "label": "N-PORT (fund B)",
      "accession_no": "0000940400-26-014711",
      "as_of": "2026-02-27",
      "edgar_url": "https://www.sec.gov/Archives/edgar/data/844779/000094040026014711/0000940400-26-014711-index.htm"
    }
  ]
}