{
  "page": "compare",
  "query": {
    "a": "MMUIX",
    "b": "RYUIX"
  },
  "retrieved_at": "2026-07-07T19:05:34+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 Utilities Fund",
    "ticker": "MMUIX",
    "slug": "MMUIX",
    "series_id": "S000002470",
    "html_url": "https://fundwatcher.app/funds/MMUIX/"
  },
  "fund_b": {
    "name": "Utilities Fund",
    "ticker": "RYUIX",
    "slug": "RYUIX",
    "series_id": "S000003805",
    "html_url": "https://fundwatcher.app/funds/RYUIX/"
  },
  "overlap": {
    "coverage_a_by_b": "0.5645076032066916890545064358",
    "coverage_b_by_a": "0.5645076032066916890545064357",
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    "as_of": {
      "a": "2026-04-30",
      "b": "2026-03-31"
    },
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      },
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        "name": "PG&E CORP",
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      },
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        "name": "XCEL ENERGY INC",
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        "name": "DTE ENERGY CO",
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      {
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      },
      {
        "name": "DOMINION ENERGY INC",
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      },
      {
        "name": "SOUTHERN CO",
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      },
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        "name": "VISTRA CORP",
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      },
      {
        "name": "EDISON INTL",
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        "name": "PUB SERV ENTERP",
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        "name": "ALLIANT ENERGY CORPORATION",
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        "name": "ENTERGY CORP",
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        "name": "SSE PLC",
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      {
        "name": "MFS Institutional Money Market Portfolio, Class A",
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      {
        "name": "ENEL SPA",
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      {
        "name": "E.ON SE",
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      {
        "name": "VEOLIA ENVIRONNE",
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      {
        "name": "SPIRE INC",
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      {
        "name": "ORSTED A/S",
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      },
      {
        "name": "US ULTRA BOND CBT Sep25",
        "value": "799718.00",
        "weight": "0.00028407",
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      },
      {
        "name": "ISRAELI SHEKEL",
        "value": "10525.90",
        "weight": "0.00000374",
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      },
      {
        "name": "British Pound",
        "value": "82.03",
        "weight": "0.00000003",
        "shared": false
      },
      {
        "name": "FX Spot Contract: EUR/USD SETTLE 2026-01-05",
        "value": "7.08",
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    ],
    "b_top": [
      {
        "name": "NEXTERA ENERGY INC",
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        "weight": "0.05557238",
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      },
      {
        "name": "SOUTHERN CO",
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      },
      {
        "name": "DUKE ENERGY CORP NEW",
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      {
        "name": "CONSTELLATION ENERGY CORP",
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      {
        "name": "AMERICAN ELECTRIC POWER CO INC",
        "value": "1001582.28",
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      {
        "name": "SEMPRA ENERGY",
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      },
      {
        "name": "ENTERGY CORP",
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        "weight": "0.02936551",
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      },
      {
        "name": "DOMINION ENERGY INC",
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        "weight": "0.02899109",
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      {
        "name": "EXELON CORP",
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        "weight": "0.02792065",
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      {
        "name": "XCEL ENERGY INC",
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      },
      {
        "name": "VISTRA CORP",
        "value": "824710.38",
        "weight": "0.02737708",
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      },
      {
        "name": "CONSOLIDATED EDISON INC",
        "value": "762946.38",
        "weight": "0.02532676",
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      },
      {
        "name": "PUB SERV ENTERP",
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        "weight": "0.02506366",
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      {
        "name": "PG&E CORP",
        "value": "736745.24",
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      {
        "name": "WEC ENERGY GROUP INC",
        "value": "726456.75",
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      {
        "name": "AMEREN CORP",
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      {
        "name": "ATMOS ENERGY CORP",
        "value": "654832.40",
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      {
        "name": "NRG ENERGY INC",
        "value": "649884.58",
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      {
        "name": "EDISON INTL",
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      {
        "name": "CENTERPOINT ENERGY INC",
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      {
        "name": "FIRSTENERGY CORP",
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      {
        "name": "PPL CORPORATION",
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      {
        "name": "DTE ENERGY CO",
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      {
        "name": "AMERICAN WATER WRKS COMPANY",
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      {
        "name": "EVERSOURCE ENERGY",
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      },
      {
        "name": "CMS ENERGY CORP",
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      {
        "name": "NISOURCE INC",
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      {
        "name": "ALLIANT ENERGY CORPORATION",
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      {
        "name": "EVERGY INC",
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      {
        "name": "TALEN ENERGY CORP",
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      {
        "name": "FORTIS INC",
        "value": "463391.74",
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      },
      {
        "name": "National Grid PLC SPON ADR EACH REP 5 ORD SHS",
        "value": "440004.60",
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      },
      {
        "name": "BROOKFIELD RENEW",
        "value": "424667.46",
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      },
      {
        "name": "PINNACLE WEST CAPITAL CORP",
        "value": "415392.25",
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      },
      {
        "name": "ESSENTIAL UTILITIES INC",
        "value": "394847.35",
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      },
      {
        "name": "OGE ENERGY CORP",
        "value": "374135.96",
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      {
        "name": "NATL FUEL GAS CO",
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      {
        "name": "CLEARWAY ENERGY INC CL C",
        "value": "341469.39",
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      {
        "name": "IDACORP INC",
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      {
        "name": "UGI CORP NEW",
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      {
        "name": "AES CORP",
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      {
        "name": "PORTLAND GENERAL ELECTRIC CO",
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      {
        "name": "TXNM ENERGY INC",
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      {
        "name": "OKLO INC",
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      {
        "name": "BLACK HILLS CORP",
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      },
      {
        "name": "ORMAT TECHNOLOGIES INC",
        "value": "262116.64",
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      },
      {
        "name": "MDU RESOURCES GROUP INC",
        "value": "244744.64",
        "weight": "0.00812454",
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      },
      {
        "name": "NORTHWESTERN ENERGY GROUP INC",
        "value": "237911.52",
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      },
      {
        "name": "SJW GROUP",
        "value": "198245.93",
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      },
      {
        "name": "OTTER TAIL CORPORATION",
        "value": "157371.61",
        "weight": "0.00522411",
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      }
    ]
  },
  "error": null,
  "sources": [
    {
      "label": "N-PORT (fund A)",
      "accession_no": "0002071691-26-015581",
      "as_of": "2026-04-30",
      "edgar_url": "https://www.sec.gov/Archives/edgar/data/863032/000207169126015581/0002071691-26-015581-index.htm"
    },
    {
      "label": "N-PORT (fund B)",
      "accession_no": "0000940400-26-022999",
      "as_of": "2026-03-31",
      "edgar_url": "https://www.sec.gov/Archives/edgar/data/899148/000094040026022999/0000940400-26-022999-index.htm"
    }
  ]
}