{
  "page": "compare",
  "query": {
    "a": "DFDMX",
    "b": "RPMGX"
  },
  "retrieved_at": "2026-07-07T19:23:36+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": "DF DENT MIDCAP GROWTH FUND",
    "ticker": "DFDMX",
    "slug": "DFDMX",
    "series_id": "S000033130",
    "html_url": "https://fundwatcher.app/funds/DFDMX/"
  },
  "fund_b": {
    "name": "T. Rowe Price Mid-Cap Growth Fund, Inc.",
    "ticker": "RPMGX",
    "slug": "RPMGX",
    "series_id": "S000002102",
    "html_url": "https://fundwatcher.app/funds/RPMGX/"
  },
  "overlap": {
    "coverage_a_by_b": "0.1837769588491958167714521729",
    "coverage_b_by_a": "0.1837769588491958167714521729",
    "shared_count": 15,
    "as_of": {
      "a": "2026-03-31",
      "b": "2026-03-31"
    },
    "a_top": [
      {
        "name": "ECOLAB INC",
        "value": "14115021.20",
        "weight": "0.05369159",
        "shared": false
      },
      {
        "name": "VULCAN MATERIALS CO",
        "value": "13536849.90",
        "weight": "0.05149231",
        "shared": false
      },
      {
        "name": "KINSALE CAPITAL GROUP INC",
        "value": "11314070.90",
        "weight": "0.04303716",
        "shared": false
      },
      {
        "name": "VERALTO CORP",
        "value": "10865138.02",
        "weight": "0.04132948",
        "shared": true
      },
      {
        "name": "HEICO CORP CL A",
        "value": "10853825.62",
        "weight": "0.04128645",
        "shared": false
      },
      {
        "name": "VEEVA SYSTEMS-A",
        "value": "10385194.86",
        "weight": "0.03950385",
        "shared": true
      },
      {
        "name": "BIO-TECHNE CORP",
        "value": "10384950.42",
        "weight": "0.03950292",
        "shared": false
      },
      {
        "name": "CBRE GROUP INC - CL A",
        "value": "9836156.98",
        "weight": "0.03741538",
        "shared": false
      },
      {
        "name": "TRANSDIGM GROUP INC",
        "value": "9717879.60",
        "weight": "0.03696547",
        "shared": false
      },
      {
        "name": "APPFOLIO INC - A",
        "value": "9593719.98",
        "weight": "0.03649319",
        "shared": false
      },
      {
        "name": "OLD DOMINION FRT",
        "value": "8353154.60",
        "weight": "0.03177425",
        "shared": true
      },
      {
        "name": "WEST PHARMACEUTICAL SVCS INC",
        "value": "8047549.12",
        "weight": "0.03061177",
        "shared": true
      },
      {
        "name": "PTC INC",
        "value": "8013780.09",
        "weight": "0.03048331",
        "shared": true
      },
      {
        "name": "WASTE CONNECTIONS INC",
        "value": "7999682.68",
        "weight": "0.03042969",
        "shared": false
      },
      {
        "name": "COPART INC",
        "value": "7550609.60",
        "weight": "0.02872148",
        "shared": false
      },
      {
        "name": "COSTAR GROUP INC",
        "value": "7386617.06",
        "weight": "0.02809767",
        "shared": false
      },
      {
        "name": "TYLER TECHNOLOGIES INC",
        "value": "6980785.82",
        "weight": "0.02655395",
        "shared": true
      },
      {
        "name": "MSCI INC",
        "value": "6844887.99",
        "weight": "0.02603701",
        "shared": true
      },
      {
        "name": "METTLER-TOLEDO INTL INC",
        "value": "6782733.60",
        "weight": "0.02580058",
        "shared": true
      },
      {
        "name": "GOOSEHEAD INSURANCE",
        "value": "6659652.60",
        "weight": "0.02533240",
        "shared": false
      },
      {
        "name": "MOODYS CORP",
        "value": "6603952.50",
        "weight": "0.02512052",
        "shared": false
      },
      {
        "name": "CADENCE DESIGN SYSTEMS INC",
        "value": "6082852.17",
        "weight": "0.02313833",
        "shared": false
      },
      {
        "name": "MONOLITHIC POWER SYS INC",
        "value": "5740087.50",
        "weight": "0.02183450",
        "shared": true
      },
      {
        "name": "FIRST AM-TR OB-X",
        "value": "5629597.12",
        "weight": "0.02141421",
        "shared": false
      },
      {
        "name": "BROWN & BROWN",
        "value": "5099682.84",
        "weight": "0.01939849",
        "shared": false
      },
      {
        "name": "REPLIGEN CORP",
        "value": "4968115.94",
        "weight": "0.01889803",
        "shared": false
      },
      {
        "name": "SITEONE LANDSCAPE SUPPLY INC",
        "value": "4925469.33",
        "weight": "0.01873581",
        "shared": false
      },
      {
        "name": "MICROCHIP TECHNOLOGY",
        "value": "4666521.86",
        "weight": "0.01775080",
        "shared": true
      },
      {
        "name": "FLOOR & DECOR-A",
        "value": "4647742.80",
        "weight": "0.01767937",
        "shared": false
      },
      {
        "name": "MARKEL GROUP INC",
        "value": "4561228.81",
        "weight": "0.01735028",
        "shared": true
      },
      {
        "name": "ENTEGRIS INC",
        "value": "4474699.08",
        "weight": "0.01702114",
        "shared": false
      },
      {
        "name": "BOOZ ALLEN HAMILTON HLDG CL A",
        "value": "4340886.93",
        "weight": "0.01651213",
        "shared": true
      },
      {
        "name": "MANHATTAN ASSOCIATES INC",
        "value": "3590512.64",
        "weight": "0.01365781",
        "shared": true
      },
      {
        "name": "GUIDEWIRE SOFTWARE INC",
        "value": "3530962.04",
        "weight": "0.01343129",
        "shared": true
      },
      {
        "name": "NOVANTA INC",
        "value": "3359875.17",
        "weight": "0.01278050",
        "shared": false
      },
      {
        "name": "MORNINGSTAR INC",
        "value": "3055747.80",
        "weight": "0.01162364",
        "shared": false
      },
      {
        "name": "ATLASSIAN CORP PLC CLS A",
        "value": "2390524.50",
        "weight": "0.00909323",
        "shared": true
      }
    ],
    "b_top": [
      {
        "name": "T Rowe Price Government Reserve Investment Fund",
        "value": "623752836.96",
        "weight": "0.02765496",
        "shared": false
      },
      {
        "name": "HILTON WORLDWIDE HOLDINGS INC",
        "value": "611261616.00",
        "weight": "0.02710114",
        "shared": false
      },
      {
        "name": "AGILENT TECHNOLOGIES INC",
        "value": "485475014.00",
        "weight": "0.02152421",
        "shared": false
      },
      {
        "name": "LATTICE SEMICONDUCTOR CORP",
        "value": "472352472.00",
        "weight": "0.02094241",
        "shared": false
      },
      {
        "name": "VIKING HOLDINGS LTD",
        "value": "438080412.00",
        "weight": "0.01942291",
        "shared": false
      },
      {
        "name": "METTLER-TOLEDO INTL INC",
        "value": "437674236.00",
        "weight": "0.01940490",
        "shared": true
      },
      {
        "name": "KEYSIGHT TECHNOLOGIES INC",
        "value": "410848350.00",
        "weight": "0.01821554",
        "shared": false
      },
      {
        "name": "BURLINGTON STORES INC",
        "value": "404024346.00",
        "weight": "0.01791298",
        "shared": false
      },
      {
        "name": "YUM! BRANDS INC",
        "value": "402584364.00",
        "weight": "0.01784914",
        "shared": false
      },
      {
        "name": "PTC INC",
        "value": "393258151.00",
        "weight": "0.01743565",
        "shared": true
      },
      {
        "name": "ALNYLAM PHARMACEUTICALS INC",
        "value": "385979707.20",
        "weight": "0.01711295",
        "shared": false
      },
      {
        "name": "TECHNIPFMC PLC",
        "value": "378991399.00",
        "weight": "0.01680311",
        "shared": false
      },
      {
        "name": "MONOLITHIC POWER SYS INC",
        "value": "375595245.45",
        "weight": "0.01665254",
        "shared": true
      },
      {
        "name": "MSCI INC",
        "value": "372499030.80",
        "weight": "0.01651527",
        "shared": true
      },
      {
        "name": "ASSURANT INC",
        "value": "338280711.00",
        "weight": "0.01499815",
        "shared": false
      },
      {
        "name": "TYLER TECHNOLOGIES INC",
        "value": "333348015.60",
        "weight": "0.01477945",
        "shared": true
      },
      {
        "name": "OLD DOMINION FRT",
        "value": "332160460.00",
        "weight": "0.01472680",
        "shared": true
      },
      {
        "name": "LIBERTY MEDIA CORP LIBERTY FORMULA ONE CL C",
        "value": "327218939.58",
        "weight": "0.01450771",
        "shared": false
      },
      {
        "name": "DOMINOS PIZZA INC",
        "value": "321052467.80",
        "weight": "0.01423431",
        "shared": false
      },
      {
        "name": "DOLLAR TREE INC",
        "value": "318838365.00",
        "weight": "0.01413615",
        "shared": false
      },
      {
        "name": "VERALTO CORP",
        "value": "314589518.00",
        "weight": "0.01394777",
        "shared": true
      },
      {
        "name": "MACOM TECHNOLOGY SOLUTIONS HOLDINGS INC",
        "value": "313607254.00",
        "weight": "0.01390422",
        "shared": false
      },
      {
        "name": "COOPER COS INC",
        "value": "305319300.00",
        "weight": "0.01353676",
        "shared": false
      },
      {
        "name": "MICROCHIP TECHNOLOGY",
        "value": "304481086.00",
        "weight": "0.01349960",
        "shared": true
      },
      {
        "name": "NEW YORK TIMES CO CL A",
        "value": "302759307.00",
        "weight": "0.01342326",
        "shared": false
      },
      {
        "name": "FERGUSON ENTERPRISES INC",
        "value": "301511876.00",
        "weight": "0.01336795",
        "shared": false
      },
      {
        "name": "CENCORA INC",
        "value": "294801541.60",
        "weight": "0.01307044",
        "shared": false
      },
      {
        "name": "EQT CORPORATION",
        "value": "283643480.00",
        "weight": "0.01257573",
        "shared": false
      },
      {
        "name": "VEEVA SYSTEMS-A",
        "value": "283033931.60",
        "weight": "0.01254871",
        "shared": true
      },
      {
        "name": "MARTIN MAR MTLS",
        "value": "266000944.80",
        "weight": "0.01179352",
        "shared": false
      },
      {
        "name": "WEST PHARMACEUTICAL SVCS INC",
        "value": "265853848.00",
        "weight": "0.01178700",
        "shared": true
      },
      {
        "name": "PLANET FITNESS INC CL A",
        "value": "264234950.00",
        "weight": "0.01171523",
        "shared": false
      },
      {
        "name": "INGERSOLL RAND INC",
        "value": "257665920.00",
        "weight": "0.01142398",
        "shared": false
      },
      {
        "name": "XPO LOGISTICS INC",
        "value": "247564875.00",
        "weight": "0.01097614",
        "shared": false
      },
      {
        "name": "UL SOLUTIONS INC CL A",
        "value": "245811908.79",
        "weight": "0.01089842",
        "shared": false
      },
      {
        "name": "CBOE GLOBAL MARKETS INC",
        "value": "245036826.00",
        "weight": "0.01086405",
        "shared": false
      },
      {
        "name": "ESAB CORP",
        "value": "242113968.00",
        "weight": "0.01073446",
        "shared": false
      },
      {
        "name": "ULTA BEAUTY INC",
        "value": "241387478.00",
        "weight": "0.01070225",
        "shared": false
      },
      {
        "name": "RAYMOND JAMES FINANCIAL INC.",
        "value": "235399582.00",
        "weight": "0.01043677",
        "shared": false
      },
      {
        "name": "TRANSUNION",
        "value": "234201231.00",
        "weight": "0.01038364",
        "shared": false
      },
      {
        "name": "AVERY DENNISON CORP",
        "value": "231632952.00",
        "weight": "0.01026977",
        "shared": false
      },
      {
        "name": "SERVICE CORP INTERNATIONAL INC",
        "value": "222100418.00",
        "weight": "0.00984713",
        "shared": false
      },
      {
        "name": "TELEFLEX INC",
        "value": "217630395.00",
        "weight": "0.00964895",
        "shared": false
      },
      {
        "name": "BOOZ ALLEN HAMILTON HLDG CL A",
        "value": "217430595.00",
        "weight": "0.00964009",
        "shared": true
      },
      {
        "name": "ELANCO ANIMAL HEALTH INC",
        "value": "215963464.00",
        "weight": "0.00957504",
        "shared": false
      },
      {
        "name": "MANHATTAN ASSOCIATES INC",
        "value": "215441408.00",
        "weight": "0.00955190",
        "shared": true
      },
      {
        "name": "ROSS STORES INC",
        "value": "213077268.00",
        "weight": "0.00944708",
        "shared": false
      },
      {
        "name": "TEXTRON INC",
        "value": "212096588.00",
        "weight": "0.00940360",
        "shared": false
      },
      {
        "name": "POOL CORP",
        "value": "207505601.40",
        "weight": "0.00920005",
        "shared": false
      },
      {
        "name": "IONIS PHARMACEUTICALS INC",
        "value": "207299986.83",
        "weight": "0.00919094",
        "shared": false
      }
    ]
  },
  "error": null,
  "sources": [
    {
      "label": "N-PORT (fund A)",
      "accession_no": "0000315774-26-000121",
      "as_of": "2026-03-31",
      "edgar_url": "https://www.sec.gov/Archives/edgar/data/315774/000031577426000121/0000315774-26-000121-index.htm"
    },
    {
      "label": "N-PORT (fund B)",
      "accession_no": "0001099263-26-006584",
      "as_of": "2026-03-31",
      "edgar_url": "https://www.sec.gov/Archives/edgar/data/887147/000109926326006584/0001099263-26-006584-index.htm"
    }
  ]
}