To The Moon

Applied Materials Plunged: Here's Why Its Peers Followed

What happened

After earnings, Applied Materials—the world's leading semiconductor equipment maker—plunged 14% in after-hours trading, dragging peers sharply lower: KLA, the semiconductor metrology and inspection leader, and front-end equipment leader Lam Research each fell nearly 7%, while lithography giant ASML slipped roughly 3%.

Applied Materials (AMAT) beat for the July quarter, but its outlook spooked the market. Management projected October-quarter revenue of $6.7B ± $0.5B and EPS of $2.11 ± $0.20, both below consensus (~$7.33B and $2.39). The miss was pinned on two things:

(1) a pause in China as customers digest recently installed capacity for mature-node chips, and

(2) an assumption that no pending U.S. export licenses will be approved during the quarter. Shares fell ~13% after hours.

Why it matters

China is a critical market for the entire sector. For AMAT, it was the largest region last quarter. If Chinese fabs are slowing orders and export licenses don’t come through, near-term revenue becomes harder to backfill—even with AI-driven strength elsewhere.

This guidance triggered "sympathy selling" across the group. Investors in Lam Research (LRCX), KLA (KLAC), and ASML immediately extrapolated similar China and policy risks to the rest of the tool chain. ASML had already warned in mid-July that uncertainty around tariffs and customer timing clouds its 2026 growth visibility, adding to the sector's skittish tape.

Don't forget: China is a big slice for all Big 4

Here's the latest management commentary on Mainland China:

~$Applied Materials (AMAT.US)$ (Front-end leader): 35% of revenue from China in the July quarter.

CFO flagged an expected FQ4 revenue decline driven by China digestion at mature nodes and 'non-linear' demand at leading-edge customers, and said the outlook assumes no approvals of pending U.S. export licenses. China was 35% of sales in the July quarter.

~$Lam Research (LRCX.US)$ (Front-end leader): 35% of revenue from China in the June quarter.

Management reported China at 35% of June-quarter sales, noting higher spend from multinationals in the region while the majority still comes from domestic customers. The mix underscores ongoing demand for mature-node deposition/etch capacity even as policy risk lingers.

~$KLA Corp (KLAC.US)$ (Metrology and inspection leader): 30% of June-quarter revenue from China.

China was 30% of June-quarter revenue—the largest geography—but the company is planning for lower overall China demand this year, even as AI-related inspection demand remains healthy elsewhere.

~$ASML Holding (ASML.US)$ (Lithography giant): 27% of Q2 'ship-to' system sales to China.

Q2 ship-to China was 27%. Management delivered strong results but cautioned that macro/geopolitics and tariff uncertainty make 2026 harder to call, even with EUV momentum and AI-driven lithography intensity.

Summary

AMAT's miss wasn't about today's AI cycle—it was about timing and policy. China digestion at mature nodes, export-license assumptions, and uneven leading-edge orders can create lumpy quarters even for best-in-class franchises. Because each of the big four still has meaningful China exposure, guidance shocks in one name tend to echo across the group. If you believe the multiyear AI build-out continues, volatility like this is cyclical, not structural—but in the near term, policy clarity (licenses/tariffs) will likely drive the next move.

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