October 6, 2026
ASML fell 1.4 percent after new government restrictions on advanced chip exports.
What happened
New government restrictions on advanced chip exports were announced. The move erased roughly 707 billion dollars of market value across the sector. ASML, which has no real competitor in advanced chipmaking equipment, dropped 1.4 percent, a move larger than 47 percent of its daily moves over the past three years.
Why it matters
Curbing advanced chip exports directly hits ASML because its machines are essential to making those chips. The restrictions can pressure the AI supply chain by limiting who can buy leading-edge processors, but they may also speed up a shift toward building more semiconductor capacity domestically.
The case against
Hyperscaler AI capital expenditure is growing faster than revenue, implying that returns on AI investment are likely negative in most scenarios. If that spending spree cools, demand for the advanced equipment ASML sells would fall regardless of export rules.
What settles it
Whether the new restrictions include a pace of enforcement that meaningfully cuts into ASML's order book over the next two quarters.