Key Takeaways
- • AI-related ETFs now command a record 19% of all US ETF trading volume, representing nearly one in five dollars flowing through US ETF markets and signaling unprecedented institutional capital concentration in the artificial intelligence sector.
- • The category grew explosively in 2025, pulling in $19 billion in inflows—a 4.5x increase from $4.2 billion in 2024—while the universe of AI-focused products expanded to 92 US-listed funds managing $50.8 billion in total assets under management.
- • The "AI-related" definition spans a broad ecosystem including semiconductor ETFs, technology-focused vehicles, memory chip funds, and South Korea-themed ETFs, reflecting how chip manufacturing and semiconductor supply chains have become central to AI infrastructure investment.
- • Leading products driving flows include the Global X Artificial Intelligence & Technology ETF (AIQ), the VanEck Semiconductor ETF (SMH), and the Roundhill Generative AI & Technology ETF (CHAT), with average expense ratios of 0.74%—notably higher than broad-market index fund benchmarks.
- • The AI ETF boom traces directly to ChatGPT's December 2022 launch, transforming what began as a niche thematic investment corner into a market-defining force within institutional portfolio allocation.
Summary
The artificial intelligence sector has fundamentally reshaped US exchange-traded fund markets, with AI-related ETFs now capturing 19% of all US ETF trading volume—a record milestone that underscores the scale of capital reallocation away from traditional sectors and previous thematic narratives. This metric is particularly striking when contextualized against total US ETF market activity: while AI-focused products attracted $19 billion in inflows during 2025, representing substantial absolute growth, their outsized trading volume relative to assets under management reveals concentrated institutional positioning and active trading patterns in this thematic category.
The growth trajectory has been dramatic. AI-related ETF inflows in 2025 reached $19 billion, up from $4.2 billion in 2024—a 4.5x year-over-year increase. The product landscape has expanded proportionally, with 92 US-listed AI ETFs now in existence, collectively managing $50.8 billion in assets. The average expense ratio across this cohort stands at 0.74%, substantially above the ultra-low fees that have become standard in passive broad-market indexing, reflecting the specialized nature and active management components embedded in many thematic AI vehicles.
The definition of "AI-related" encompasses a deliberately broad mandate, extending beyond pure artificial intelligence software and services companies to include semiconductor manufacturers, memory chip producers, and even South Korea-themed funds—a categorization justified by the outsized role of South Korean companies like Samsung and SK Hynix in global chip manufacturing infrastructure critical to AI deployment. This definitional breadth captures the entire value chain underpinning AI infrastructure buildout, not merely software vendors.
Three ETFs have emerged as key volume drivers: the Global X Artificial Intelligence & Technology ETF (AIQ), the VanEck Semiconductor ETF (SMH), and the Roundhill Generative AI & Technology ETF (CHAT). The acceleration in AI-themed fund creation and capital flows traces directly to the December 2022 launch of ChatGPT, which catalyzed institutional recognition of generative AI as a transformative technology platform. What began as a niche corner of thematic investing has evolved into a dominant market force, with institutional investors treating AI exposure as a core portfolio allocation component rather than a speculative satellite position. Within the broader context of record $1.4 trillion in total US ETF inflows during 2025, the $19 billion flowing into AI products represents a concentrated bet on technology disruption at a scale unmatched by competing thematic narratives.
The growth trajectory has been dramatic. AI-related ETF inflows in 2025 reached $19 billion, up from $4.2 billion in 2024—a 4.5x year-over-year increase. The product landscape has expanded proportionally, with 92 US-listed AI ETFs now in existence, collectively managing $50.8 billion in assets. The average expense ratio across this cohort stands at 0.74%, substantially above the ultra-low fees that have become standard in passive broad-market indexing, reflecting the specialized nature and active management components embedded in many thematic AI vehicles.
The definition of "AI-related" encompasses a deliberately broad mandate, extending beyond pure artificial intelligence software and services companies to include semiconductor manufacturers, memory chip producers, and even South Korea-themed funds—a categorization justified by the outsized role of South Korean companies like Samsung and SK Hynix in global chip manufacturing infrastructure critical to AI deployment. This definitional breadth captures the entire value chain underpinning AI infrastructure buildout, not merely software vendors.
Three ETFs have emerged as key volume drivers: the Global X Artificial Intelligence & Technology ETF (AIQ), the VanEck Semiconductor ETF (SMH), and the Roundhill Generative AI & Technology ETF (CHAT). The acceleration in AI-themed fund creation and capital flows traces directly to the December 2022 launch of ChatGPT, which catalyzed institutional recognition of generative AI as a transformative technology platform. What began as a niche corner of thematic investing has evolved into a dominant market force, with institutional investors treating AI exposure as a core portfolio allocation component rather than a speculative satellite position. Within the broader context of record $1.4 trillion in total US ETF inflows during 2025, the $19 billion flowing into AI products represents a concentrated bet on technology disruption at a scale unmatched by competing thematic narratives.
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