AINEWS
ASML — the Dutch monopoly supplier of the ultraviolet light machines that print circuits onto silicon — lost about €60 billion (roughly $66 billion) over two trading days as the market priced in a new reality: China is preparing to mass produce
This is a development update linked to our earlier piece on China's homegrown lithography launch (China's First Homegrown Lithography Tools Are Live. Korean Chip Stocks Lost $270 Billion in a Day). Where that piece tracked the domestic Chinese development and the Korean stock reaction, this update focuses on the ASML-side consequence: the Dutch company's €60 billion two-day market-cap slide and what it reveals about the parallel two-stack tool supply chain forming on both sides of the US export-control wall.
ASML, the Dutch company that for now holds the only working monopoly on the machines used to print the most advanced chips, lost more than €60 billion (about $66 billion at mid-2026 exchange rates) in market value in two trading days this week. The trigger: a Chinese state-owned firm, Shanghai Aishengna Electronic Technology Group, is preparing to mass-produce immersion DUV lithography tools — the tier just below ASML's leading-edge EUV systems — which fabs use for chips a few generations behind the leading edge. The Information reported the plan on Monday; Reuters confirmed and expanded on Tuesday.
The 10% slide in ASML shares over the two-day window was a market reaction larger than the immediate technical threat. ASML's most advanced systems, the EUV machines that print chips at the smallest transistor sizes, remain out of China's reach, and the immersion DUV tier China is targeting sits one rung below. JPMorgan's read, cited in the wire coverage, is that the damage to ASML stays limited in the medium term while the long-term risk to its China revenue is raised.
The US-aligned export-control regime, in place and tightening, already bars ASML from selling its EUV systems into China and has progressively narrowed the categories of DUV tools it can ship. ASML said this month it expects about 20% of revenue, around €9 billion (about $10 billion), to come from China in 2026, a number that exposes how much of the company's book still rides on a market that is being deliberately shrunk by the same governments ASML's home country sits alongside. The Congressional legislation now under debate would close the remaining door on immersion DUV exports to China, turning the squeeze from selective to total.
The Chinese push is the other half. Shanghai Aishengna's reported plan calls for five immersion DUV tools in 2026 and roughly twenty in 2027, with state-owned SMIC, Hua Hong, and CXMT named by TrendForce as the expected first delivery recipients this year. The headline buyers matter. SMIC, China's largest contract chipmaker, builds the logic chips for Huawei's Kirin line and for much of China's domestic AI accelerator stack; Hua Hong runs the trailing-edge fabs that feed automotive and industrial customers; CXMT is China's main DRAM producer. A domestic immersion DUV line, even at lower yield, changes what each of those companies can plan around over a five-year horizon. The machines do not need to match ASML's 2000-series immersion DUV on day one. They only need to exist on a publicly visible production schedule, inside a market the US has decided to wall off. Yields, defect rates, and node capability for the new tools are not disclosed in available reporting, and the announcements come from a state-linked program with a long record of overpromising on lithography timelines.
The export controls and the domestic build are not racing toward parity; they are racing toward a parallel tool stack. On the US-aligned side, ASML, Applied Materials, Lam Research, and Tokyo Electron continue to ship the most advanced equipment to Taiwan, Korea, the United States, and Japan, with EUV as the boundary that defines the leading edge. On the Chinese side, Shanghai Aishengna, Naura, AMEC, and a handful of other state-backed vendors are building the equipment that chip fabs inside China will be allowed to buy once the export-control wall is complete. ASML sits on the seam, with EUV on one side as the line Beijing cannot yet cross and immersion DUV as the first wedge now in volume production.
The squeeze has second-order effects outside lithography. If China's chip fabs can no longer count on ASML for new immersion DUV tools, they will run existing ASML DUV systems harder and longer, which raises demand for spare parts, service contracts, and software upgrades on a shrinking installed base. ASML's service revenue from China should grow even as new-tool revenue shrinks, a pattern that complicates the simple "China demand falls" framing. Memory and mature-node logic customers elsewhere, who compete with Chinese chip fabs for the same automotive and consumer electronics orders, get a brief cost-of-capital edge while Chinese fabs wait for domestic tools to ramp, then face a Chinese competitor that no longer depends on US-aligned spares.
Three milestones to watch from here. First, the Congressional vote on the remaining immersion DUV restrictions, which would convert the squeeze from partial to complete. Second, the actual delivery count from Shanghai Aishengna this year, with the 5-tool 2026 target as the floor and a slip past 2027 as the most likely disappointment. Third, ASML's own quarterly disclosure of how much of its 2026 revenue lands at the ~20% China mark or slips below, which will tell the market whether the squeeze is moving the long-term revenue line or only reshaping the near-term mix.