{
  "page": "compare",
  "query": {
    "a": "ROM",
    "b": "JAFSX"
  },
  "retrieved_at": "2026-07-07T15:44:58+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": "ProShares Ultra Technology",
    "ticker": "ROM",
    "slug": "ROM",
    "series_id": "S000014260",
    "html_url": "https://fundwatcher.app/funds/ROM/"
  },
  "fund_b": {
    "name": "Science & Technology Trust",
    "ticker": "JAFSX",
    "slug": "JAFSX",
    "series_id": "S000008340",
    "html_url": "https://fundwatcher.app/funds/JAFSX/"
  },
  "overlap": {
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    "coverage_b_by_a": "0.5517466351911108389423930964",
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    "as_of": {
      "a": "2026-02-28",
      "b": "2026-03-31"
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      },
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      },
      {
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      },
      {
        "name": "MICROSOFT CORP",
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      },
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      {
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        "name": "WIB 0 03/19/26",
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      {
        "name": "MICRON TECHNOLOGY INC",
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        "name": "ADV MICRO DEVICE",
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        "name": "APPLIED MATERIALS INC",
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        "name": "LAM RESEARCH CORP",
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        "name": "ORACLE CORP",
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      },
      {
        "name": "INTL BUS MACH CORP",
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      {
        "name": "INTEL CORP",
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      {
        "name": "KLA CORP",
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      {
        "name": "QUALCOMM INC",
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        "name": "ARISTA NETWORKS INC",
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        "name": "ACCENTURE PLC CL A",
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      {
        "name": "APPLOVIN CORP",
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      {
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      {
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      {
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      {
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      {
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        "name": "CADENCE DESIGN SYSTEMS INC",
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        "name": "TE CONNECTIVITY PLC",
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      {
        "name": "NXP SEMICONDUCTORS NV",
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      {
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        "name": "T Rowe Price Government Reserve Investment Fund",
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      {
        "name": "ALPHABET INC CL A",
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        "name": "ALPHABET INC CL C",
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      {
        "name": "META PLATFORMS INC CL A",
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      {
        "name": "CISCO SYSTEMS INC",
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      {
        "name": "ADV MICRO DEVICE",
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      {
        "name": "MICRON TECHNOLOGY INC",
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      {
        "name": "PALANTIR TECHNOLOGIES INC",
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      {
        "name": "LAM RESEARCH CORP",
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      {
        "name": "ORACLE CORP",
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      {
        "name": "INTL BUS MACH CORP",
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      {
        "name": "TAIWAN SEMICONDUCTOR MANUFACTU COMMON STOCK TWD10.0",
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      },
      {
        "name": "APPLIED MATERIALS INC",
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      {
        "name": "INTEL CORP",
        "value": "14940388.02",
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      {
        "name": "ARISTA NETWORKS INC",
        "value": "11915799.00",
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      {
        "name": "CIENA CORP",
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        "name": "AMPHENOL CORPORATION CL A",
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        "name": "SANDISK CORPORATION",
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      {
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      {
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      {
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      {
        "name": "CORNING INC",
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      {
        "name": "MARVELL TECHNOLOGY INC",
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      {
        "name": "CLOUDFLARE INC-A",
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      {
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      },
      {
        "name": "ANALOG DEVICES INC",
        "value": "5821962.00",
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      {
        "name": "LATTICE SEMICONDUCTOR CORP",
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      },
      {
        "name": "KEYSIGHT TECHNOLOGIES INC",
        "value": "5393267.00",
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      },
      {
        "name": "KIOXIA HOLDINGS CORP COMMON STOCK",
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      },
      {
        "name": "MKS INSTRUMENTS INC",
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      },
      {
        "name": "MONOLITHIC POWER SYS INC",
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      {
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      {
        "name": "SAMSUNG ELECTRONICS CO LTD COMMON STOCK KRW100.0",
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      },
      {
        "name": "SEAGATE TECHNOLO",
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      {
        "name": "JABIL INC",
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      {
        "name": "INTERDIGITAL INC",
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      {
        "name": "SK HYNIX INC COMMON STOCK KRW5000.0",
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      },
      {
        "name": "APPLOVIN CORP",
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      },
      {
        "name": "DELL TECHNOLOGIES INC CL C",
        "value": "3709338.00",
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      },
      {
        "name": "COHERENT CORP",
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      },
      {
        "name": "VIAVI SOLUTIONS INC",
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      },
      {
        "name": "FABRINET",
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    ]
  },
  "error": null,
  "sources": [
    {
      "label": "N-PORT (fund A)",
      "accession_no": "0002071691-26-009282",
      "as_of": "2026-02-28",
      "edgar_url": "https://www.sec.gov/Archives/edgar/data/1174610/000207169126009282/0002071691-26-009282-index.htm"
    },
    {
      "label": "N-PORT (fund B)",
      "accession_no": "0000756913-26-000290",
      "as_of": "2026-03-31",
      "edgar_url": "https://www.sec.gov/Archives/edgar/data/756913/000075691326000290/0000756913-26-000290-index.htm"
    }
  ]
}