ASML outperforms in tech sell-off: memory supercycle confirms resilience of upstream AI chain

While the Mag7 lose $2.3 trillion in June, ASML shows notable relative outperformance and Micron confirms the HBM memory supercycle. The contrarian angle of the tech sell-off: upstream infrastructure holds up better than platforms.

The Fact

Yahoo Finance reports (30/06/2026) that ASML Holdings is among the most resilient AI stocks during June's tech sell-off, while Seeking Alpha confirms that Sandisk/Micron validate a "memory supercycle": demand for HBM3e memory for AI servers exceeds available supply. ASML – the world's sole manufacturer of EUV lithography machines – benefits from an order book secured by foundries (TSMC, Samsung) for 2-3 years, structurally insensitive to quarterly fluctuations in the Mag7 multiples.

Our Take

ASML and the memory supercycle embody the resilience of the upstream AI value chain: hardware bottlenecks (EUV machines, HBM3e) are contractual and physical, whereas software platforms face multiple reevaluations. This is the contrarian angle of June 2026's tech sell-off: in a market shunning high valuations, critical equipment suppliers with locked-in order books decline less—and rebound faster. Micron's confirmation of the memory supercycle strengthens the conviction: the AI hardware tension is not hype, but a multi-year physical production constraint.

To Watch

• ASML Q2 2026 results (mid-July): EUV order book and 2026 guidance
• Micron Q3 FY2026: HBM supercycle confirmation and pricing power
• Status of EUV export licenses to China (Netherlands/US decision)