ASML — EUV Lithography Cycle

ASML is the world's sole manufacturer of extreme ultraviolet (EUV) lithography machines — the €180M+ systems that pattern the most advanced semiconductor chips at 3nm and below. Without ASML's EUV machines, it is physically impossible to manufacture leading-edge chips for AI accelerators, smartphones or data centres. This irreplaceable monopoly position makes ASML one of the most structurally advantaged companies in the global technology supply chain.

EUV Monopoly: The Ultimate Moat

ASML is the only company in the world capable of manufacturing EUV lithography machines — a position that took 30+ years and €6B+ of R&D investment to achieve. The physics of EUV (13.5nm wavelength light requiring plasma-generated radiation, vacuum environments and ultra-precise optics) is so complex that no competitor has come close to replication. Every leading-edge chip made at TSMC, Samsung and Intel uses ASML EUV machines.

High-NA EUV: The Next Generation Moat

ASML's new High-NA EUV system (€350M per machine) pushes feature sizes below 2nm — necessary for the most advanced AI and HPC chips planned for 2026–2028. TSMC and Intel have already ordered High-NA systems, and Samsung is expected to follow. High-NA creates a new product cycle that extends ASML's revenue growth well into the 2030s, independent of the current capex cycle.

Semiconductor Capex Cycle: The Short-Term Signal

Despite its structural irreplaceability, ASML experiences significant revenue cyclicality tied to chipmaker capital expenditure decisions. When semiconductor companies cut capex — as in 2022–2023 when memory makers faced oversupply — EUV system deliveries are delayed and order intake falls. When capex recovers — driven by AI chip investment — ASML's backlog and deliveries surge simultaneously.

China Export Controls: The Geopolitical Risk

US and Dutch export controls prevent ASML from shipping its most advanced EUV machines to Chinese chip manufacturers — limiting China to older DUV (deep ultraviolet) machines. China represents approximately 20–30% of ASML's revenues from mature technology. Escalating export controls risk further restricting ASML's China revenues, while simultaneously protecting Western chipmakers from Chinese leading-edge competition.

Key Risks

Export control escalation could further restrict China revenues. A prolonged semiconductor capex downturn — if AI infrastructure investment disappoints — would delay EUV deliveries and compress near-term revenues. Customer concentration (TSMC ~50%, Samsung ~25%, Intel ~20%) means three customers represent ASML's entire leading-edge market.

Cycle Performance Summary