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What are the best technology sector ETFs?

AlphaOS investment intelligence · Research and education only — not investment advice · Updated Sep 27, 2026

Direct answer

The best technology sector ETFs by assets under management, liquidity, and broad adoption are XLK (Technology Select Sector SPDR Fund), QQQ (Invesco QQQ Trust), VGT (Vanguard Information Technology ETF), FTEC (Fidelity MSCI Information Technology ETF), and SMH (VanEck Semiconductor ETF). XLK tracks the S&P 500 tech sector with ~$70B AUM and a 0.09% expense ratio. QQQ, with over $230B AUM, tracks the Nasdaq-100 and provides the broadest mega-cap tech exposure. VGT offers comprehensive coverage of 300+ tech stocks at a 0.10% expense ratio. FTEC is the lowest-cost broad tech ETF at 0.084%. SMH provides targeted semiconductor exposure with NVIDIA, TSMC, and ASML as top holdings.

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Key Takeaways

  • QQQ is the largest and most liquid tech-oriented ETF with $230B+ AUM and average daily volume exceeding $20B, making it the institutional standard for Nasdaq-100 exposure
  • XLK holds only S&P 500 technology companies, with Apple and NVIDIA together comprising roughly 40%+ of the fund, creating significant concentration risk
  • VGT covers 300+ stocks including mid-cap tech names absent from XLK, offering broader diversification within the information technology sector
  • SMH is the leading pure-play semiconductor ETF with ~$22B AUM; top holdings include NVIDIA (~20%), TSMC, ASML, Broadcom, and AMD
  • FTEC at 0.084% expense ratio is the lowest-cost broad technology ETF available to retail investors, virtually identical in composition to VGT
  • CIBR (First Trust Nasdaq Cybersecurity ETF) and HACK (ETFMG Prime Cyber Security ETF) are the leading thematic ETFs for investors seeking focused cybersecurity exposure
  • IGV (iShares Expanded Tech-Software Sector ETF) provides targeted software-only exposure with Microsoft, Salesforce, and Oracle as major holdings
  • Expense ratios across leading tech ETFs range from 0.084% (FTEC) to 0.50%+ for thematic funds, making cost a meaningful differentiator over long holding periods

Evidence & Analysis

  • QQQ has returned approximately 18-20% annualized over the past decade, making it one of the best-performing large ETFs of any category
  • XLK and VGT both track MSCI or S&P IT indices; their top holdings — Apple, NVIDIA, Microsoft — represent over 40% of net assets in each fund
  • SMH's NVIDIA weighting (~20%) made it one of the top-performing ETFs in 2023 and 2024 as NVIDIA stock rose over 200% in 2023 alone
  • The global technology ETF market exceeded $500B in AUM as of 2024, reflecting sustained institutional and retail demand for sector exposure
  • Thematic tech ETFs (AI, cybersecurity, cloud) typically carry expense ratios of 0.40%–0.68%, significantly higher than broad-market tech funds
  • QQMG (Invesco Nasdaq-100 ETF) launched as a lower-cost alternative to QQQ at 0.15% vs QQQ's 0.20% expense ratio, targeting cost-sensitive long-term investors

Key Companies

XLK

Technology Select Sector SPDR Fund

Largest pure S&P 500 tech ETF — ~$70B AUM, 0.09% expense ratio, heavy Apple and NVIDIA concentration

QQQ

Invesco QQQ Trust

Most liquid tech-heavy ETF — $230B+ AUM, tracks Nasdaq-100, includes non-tech names like Amazon and Meta

VGT

Vanguard Information Technology ETF

Broadest coverage of IT sector — 300+ holdings, 0.10% expense ratio, includes mid-cap tech

SMH

VanEck Semiconductor ETF

Leading semiconductor ETF — ~$22B AUM, top holding NVIDIA at ~20% weight

FTEC

Fidelity MSCI Information Technology ETF

Lowest-cost broad tech ETF at 0.084% expense ratio, closely mirrors VGT composition

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