The VanEck Semiconductor ETF (SMH) pulled in $6.9 billion in single-day net inflows on June 18, 2026, nearly breaking $7 billion as investors rushed to capitalize on surging demand for AI chips, according to ETF.com.
The massive inflow underscores how central semiconductor stocks have become to the artificial intelligence buildout. Hyperscalers and data center operators are spending record sums on advanced chips to power AI training and inference, fueling a rally across the entire chip supply chain.
SMH’s total assets under management reached $84.54 billion as of June 18, 2026, with the fund up 83.20% year-to-date through the same date, according to VanEck’s official data. The single-day inflow of $6.9 billion represented an 8.78% increase to the fund’s asset base in just one trading session, reflecting the intensity of capital flows into semiconductor exposure.
The semiconductor sector has emerged as one of the primary beneficiaries of AI infrastructure spending. Bank of America projects that global semiconductor sales will exceed $1 trillion in 2026, driven by demand for chips used in data centers and AI systems. Analysts note that AI chip demand is accelerating as companies deploy capital at record pace to build out AI infrastructure.
The $6.9 billion inflow to SMH is part of a broader trend of capital rotation into semiconductor ETFs. ETF Trends reported that the VanEck Semiconductor ETF has amassed over $9 billion in net inflows over the past year as investors seek exposure to the AI hardware supply chain. Competing semiconductor ETFs, including memory-focused offerings, have also seen record inflows as investors differentiate between different segments of the chip market.
SMH tracks the MVIS US Listed Semiconductor 25 Index, giving it concentrated exposure to the 25 largest U.S.-listed semiconductor companies. The fund’s top holdings include major chip designers and manufacturers that are central to AI infrastructure, from processors and memory chips to semiconductor equipment makers. With a 0.35% expense ratio, SMH remains the largest semiconductor ETF by assets under management.
The semiconductor market’s dominance in 2026 reflects a fundamental shift in how investors view AI infrastructure. Rather than chasing individual AI software companies, many investors are positioning themselves for the hardware buildout that underpins the entire AI ecosystem. This shift has made semiconductor ETFs like SMH a core holding for those betting on sustained AI investment cycles.
Sources
- ETF.com — Reported SMH’s $6.9B single-day inflows on June 18, 2026, and asset composition data
- VanEck — Provided official SMH total net assets ($84.54B) and YTD returns (83.20%) as of June 18, 2026
- ETF Trends — Documented SMH’s $9B+ in net inflows over the past year and AI-driven semiconductor demand
- Bank of America — Projected 2026 global semiconductor sales exceeding $1 trillion driven by AI demand
- U.S. News & Money — Reported on accelerating AI chip demand and semiconductor sector tailwinds
