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We just covered Billionaire Ken Fisher’s Latest Portfolio: 10 Best AI Stocks to Buy. ASML Holding (NASDAQ:ASML) ranks #7 (see the 5 Best AI Stocks to Buy).

Billionaire Ken Fisher’s Stake: $4.80 billion

ASML Holding (NASDAQ:ASML) has a near‑total monopoly in the critical lithography industry. It is the only company in the world that commercially produces extreme ultraviolet (EUV) lithography systems, which are essential for manufacturing the most advanced semiconductor chips at nodes below ~5 nm.

Why is no one else competing with ASML Holding (NASDAQ:ASML)? The barriers to entry are enormous: building EUV tools requires multi‑billion‑euro investments and a deep ecosystem of suppliers and proprietary knowledge accumulated over decades. No alternative lithography technology has reached commercial viability that can replace EUV at leading-edge nodes, leaving ASML with a de facto global monopoly.

ASML Holding’s (NASDAQ:ASML)  backlog has grown meaningfully. At the end of 2025, ASML reported an order backlog of €38.8 billion, up from a backlog level of €35.9 billion at the end of 2024. 2026 guidance shows continued revenue growth. Earlier this year, ASML Holding (NASDAQ:ASML) raised its 2026 revenue guidance to €34–39 billion, up from its previous forecast of flat-to-higher sales versus 2025’s €32.7 billion, implying a potential growth of 4% to 19% year-over-year, driven by strong AI chip demand and production expansions at major customers including TSMC, Samsung, Micron, and SK Hynix. ASML ranks seventh in our list of the best AI stocks to buy according to billionaire Ken Fisher.

Major customers for ASML Holding (NASDAQ:ASML) include the world’s largest semiconductor manufacturers — TSMC, Samsung, Intel, and SK hynix — all of which depend on ASML’s lithography systems.

Polen International Growth Strategy explained in its investor letter why ASML is critical to the AI industry. (Click here to read the full text).

While we acknowledge the potential of ASML as an investment, we believe certain AI stocks offer greater upside potential and carry less downside risk. If you're looking for an extremely undervalued AI stock that also stands to benefit significantly from Trump-era tariffs and the onshoring trend, see our free report on the best short-term AI stock.

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