Why ASML Stock Jumped 86% in the First Half of 2026

ASML is increasingly being priced as a duration asset on AI capex rather than a pure equipment name. The first-order benefit accrues to EUV intensity, but the second-order winners are the fabs and memory vendors that must fund the node transitions: TSMC, SK Hynix, and Micron likely capture the nearer earnings uplift, while ASML captures the longer-tail pricing power. That means ASML can keep working even if quarterly revenue is muted, but only as long as bookings and long-term guidance confirm that capex is broadening rather than just shifting timing.

The risk is that the market is extrapolating one cycle of restocking into a multi-year supercycle. In the next 1-3 months, the main catalyst is not revenue but whether management lifts the long-term sales framework; if that number stays unchanged, the stock is vulnerable to multiple compression because the easy re-rating has already happened. Over 6-18 months, any digestion in leading-edge capex or a memory price roll-over would likely hit semicap equipment before it hits the compute names.

Contrarian view: consensus is treating ASML as the cleanest AI winner, but a large share of AI spend is migrating to HBM, networking, packaging, and custom accelerators, not just front-end lithography. That makes NVDA a faster monetizer of the same theme, while ASML is the more expensive expression of a slower-moving capex cycle. The thesis is falsified if bookings weaken sequentially or the 2030 sales range is not raised despite the AI narrative.