ASML Can't Keep Up With 2027 or 2028 Demand. Is It the Best AI Stock to Buy Now?

ASML reported record Q3 2026 revenue of €11.7B and a 57.5% gross margin, exceeding its guidance. It expects 2026 net sales of €44B–€45B and a gross margin around 56%, while forecasting that its currently planned 30% capacity increase for both 2027 and 2028 may not meet customer demand. Strong demand and a tight supply outlook support the article’s view that ASML has pricing power and further AI-related growth potential.

Analysis

The bullish signal is not simply AI demand; it is potential scarcity rent accruing to the sole supplier of EUV lithography. If demand converts into shipped systems, a richer EUV/service mix could support margins as well as revenue. But capacity constraints cut both ways: they limit near-term sales conversion, and customer orders extending to 2029–30 may represent reservation of scarce slots rather than irrevocable demand. Treat the capacity shortfall as evidence of bargaining power, not proof of incremental earnings until order conversion and delivery cadence are visible.

The key second-order check is customer return on capacity. TSMC and other fabs must justify expensive tool purchases with sustained utilization and profitable advanced-node demand; weaker AI monetization, export restrictions, or delayed fab build-outs could push deliveries right and expose ASML to a sharp expectations reset. DUV and installed-base services may cushion that cycle, though neither eliminates dependence on customer capex. High-NA is a longer-dated adoption option, not yet the core near-term thesis; engineering, yield, and customer qualification can delay volume uptake. ASML’s reported margin strength also needs monitoring for mix and supply-chain costs, including constrained specialist optics supply.

Over days, the results reinforce the scarcity narrative, but the modest reported share move offers no standalone entry signal. Over 1–3 months, watch order intake versus shipments, 2027–28 capacity plans, and guidance conversion. Over 6–18 months, the thesis requires both fab expansion and sustained EUV demand. Consensus may underweight order optionality and service resilience, but may overread long-dated visibility as guaranteed backlog. Without valuation and order-quality data, prefer conditional exposure over chasing.

Key Decisions for Investors

• Prefer ASML on a pullback or after confirmation of order conversion rather than buying solely on long-dated customer visibility. Reassess if order intake weakens, delivery schedules slip, or guidance is cut.
• Use TSMC’s capex plans and advanced-node utilization as demand-side confirmation, not as an automatic paired trade. A slowdown in fab investment would challenge ASML’s volume and pricing thesis even if its technology position remains intact.
• Track quarterly EUV versus DUV and installed-base mix, gross-margin guidance, and reported order cancellations or deferrals. Margin deterioration alongside rising deliveries would falsify the assumed favorable mix/scarcity economics.
• Keep High-NA as a watch item until customer qualification and repeat shipments demonstrate commercial scale; verify shipment cadence and supply-chain readiness before assigning it material near-term earnings value.