{
  "page": "compare",
  "query": {
    "a": "NESIX",
    "b": "PSI"
  },
  "retrieved_at": "2026-07-07T18:27:14+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": "Needham Small Cap Growth Fund",
    "ticker": "NESIX",
    "slug": "NESIX",
    "series_id": "S000003816",
    "html_url": "https://fundwatcher.app/funds/NESIX/"
  },
  "fund_b": {
    "name": "Invesco Semiconductors ETF",
    "ticker": "PSI",
    "slug": "PSI",
    "series_id": "S000003032",
    "html_url": "https://fundwatcher.app/funds/PSI/"
  },
  "overlap": {
    "coverage_a_by_b": "0.1034143063921959880110182822",
    "coverage_b_by_a": "0.1034143063921959880110182822",
    "shared_count": 7,
    "as_of": {
      "a": "2026-03-31",
      "b": "2026-01-31"
    },
    "a_top": [
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      },
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        "name": "ADTRAN HOLDINGS INC",
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        "weight": "0.06748983",
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      },
      {
        "name": "VISHAY INTERTECHNOLOGY INC",
        "value": "10080000.00",
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      {
        "name": "DREYFUS-TR SE-IN",
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      },
      {
        "name": "PDF SOLUTIONS INC",
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      },
      {
        "name": "ROGERS CORP",
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      },
      {
        "name": "VEECO INSTRUMENT",
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      {
        "name": "HARMONIC INC",
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      },
      {
        "name": "TRANSCAT INC",
        "value": "5141500.00",
        "weight": "0.02964043",
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      {
        "name": "NLIGHT INC",
        "value": "5131800.00",
        "weight": "0.02958451",
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      },
      {
        "name": "BADGER METER INC",
        "value": "4570500.00",
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      },
      {
        "name": "VAIL RESORTS INC",
        "value": "4491200.00",
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      },
      {
        "name": "CEVA INC",
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      {
        "name": "COHU INC",
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      {
        "name": "AXCELIS TECHNOLOGIES INC",
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      {
        "name": "ASPEN AEROGELS INC",
        "value": "3325950.00",
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      },
      {
        "name": "COGNEX CORP",
        "value": "3184350.00",
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      },
      {
        "name": "GENERAC HOLDINGS INC",
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      {
        "name": "CRYOPORT INC",
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      {
        "name": "MATTHEWS INTL CORP CL A",
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      },
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        "name": "CENTURI HOLDINGS INC",
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      {
        "name": "BRUKER CORP",
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        "name": "PARSONS CORP",
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      {
        "name": "PHOTRONICS INC",
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        "name": "SYNAPTICS INC",
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      {
        "name": "TENNANT CO",
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      {
        "name": "MKS INSTRUMENTS INC",
        "value": "2298100.00",
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        "name": "MAXLINEAR INC",
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      {
        "name": "FORMFACTOR INC",
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      {
        "name": "ARLO TECHNOLOGIES INC",
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      {
        "name": "MARVELL TECHNOLOGY INC",
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      {
        "name": "SUPER MICRO COMPUTER INC",
        "value": "1741905.00",
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      {
        "name": "VISHAY PRECISION GROUP INC",
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      {
        "name": "ALLEGRO MICROSYSTEMS INC",
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        "name": "BENTLEY SYSTEM-B",
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        "name": "EVERUS CONSTRUCTION GROUP INC",
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        "name": "TTM TECHNOLOGIES INC",
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      {
        "name": "POWER INTEGRATIONS INC",
        "value": "1300480.00",
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      {
        "name": "MDU RESOURCES GROUP INC",
        "value": "1243200.00",
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      {
        "name": "SOLSTICE ADV MAT",
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      {
        "name": "KOPIN CORP",
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      {
        "name": "COSTAR GROUP INC",
        "value": "1089180.00",
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      },
      {
        "name": "AMBARELLA INC",
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      {
        "name": "UNUSUAL MACHINES INC /US",
        "value": "930000.00",
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      },
      {
        "name": "CECO ENVIRONMNTL",
        "value": "893700.00",
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      {
        "name": "PENGUIN SOLUTIONS INC",
        "value": "880000.00",
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      },
      {
        "name": "NETSKOPE INC-A",
        "value": "849000.00",
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      },
      {
        "name": "Camtek, Ltd./Israel",
        "value": "758050.00",
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      {
        "name": "MASTEC INC",
        "value": "740002.00",
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      {
        "name": "908 DEVICES INC",
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        "name": "MICRON TECHNOLOGY INC",
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      {
        "name": "LAM RESEARCH CORP",
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      {
        "name": "INTEL CORP",
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      {
        "name": "KLA CORP",
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      {
        "name": "Invesco Private Prime Fund",
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      {
        "name": "ADV MICRO DEVICE",
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        "name": "NVIDIA CORP",
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      },
      {
        "name": "ULTRA CLEAN HOLDINGS INC",
        "value": "48045684.96",
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      {
        "name": "ACM RESEARCH INC-CLASS A",
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      {
        "name": "QUALCOMM INC",
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      {
        "name": "BROADCOM INC",
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        "name": "MKS INSTRUMENTS INC",
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      {
        "name": "AMKOR TECHNOLOGY INC",
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        "name": "TERADYNE INC",
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        "name": "ANALOG DEVICES INC",
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      {
        "name": "SITIME CORP",
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        "name": "ON SEMICONDUCTOR CORP",
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        "name": "MONOLITHIC POWER SYS INC",
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      {
        "name": "ADV ENERGY INDS",
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        "name": "SILICON LABS",
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      {
        "name": "NAVITAS SEMICONDUCTOR CORP",
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        "name": "SKYWORKS SOLUTIONS INC",
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        "name": "CREDO TECHNOLOGY",
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      },
      {
        "name": "Invesco Private Government Fund",
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      {
        "name": "Invesco Government & Agency Portfolio, Institutional Class",
        "value": "1384676.51",
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    ]
  },
  "error": null,
  "sources": [
    {
      "label": "N-PORT (fund A)",
      "accession_no": "0001193125-26-230257",
      "as_of": "2026-03-31",
      "edgar_url": "https://www.sec.gov/Archives/edgar/data/1002537/000119312526230257/0001193125-26-230257-index.htm"
    },
    {
      "label": "N-PORT (fund B)",
      "accession_no": "0001209466-26-000468",
      "as_of": "2026-01-31",
      "edgar_url": "https://www.sec.gov/Archives/edgar/data/1209466/000120946626000468/0001209466-26-000468-index.htm"
    }
  ]
}