Lam Research & SK Hynix

Lam Research: Lam Research supplies etching tools to Samsung and SK Hynix's China fabs and could face increased competition from Chinese equipment makers.

SK Hynix: SK Hynix is evaluating AMEC equipment for its China facilities as a hedge against U.S. export controls. Its China operations face regulatory uncertainty.

Lam Research: Fell about 4% in off-hours trading.

SK Hynix: Fell up to 8.4% in a single session; U.S. listing started trading amid volatility.

Lam Research: Lam Research's stock sank, reflecting broader concerns about the computer chip industry and AI-related spending.

SK Hynix: SK Hynix's losses contributed significantly to the sharp drop in South Korea's Kospi index, reflecting challenges in the memory chip sector.

Lam Research: Soared after reporting strong earnings, reflecting robust semiconductor equipment demand.

SK Hynix: Surged on AI memory demand, but faced extreme volatility. Key driver of KOSPI swings.

Lam Research: Lam Research's stock was up more than 5% as chipmakers recovered from previous losses.

SK Hynix: SK Hynix, a computer chipmaker partnering with Nvidia, saw its shares surge, contributing to the strong performance of the South Korean market and the broader tech rally.

Lam Research: Semiconductor equipment maker; shares fell over 2% in pre-market.

SK Hynix: SK Hynix raised $26.5 billion in its Nasdaq debut, the largest U.S. listing by a foreign company. The company is the leading HBM supplier to Nvidia, with shares up 680% over the past year despite a recent 25% pullback. Proceeds will fund capacity expansion in South Korea and the U.S.

Lam Research: Lam Research, with its own $3 billion research investment, is part of the industry trend toward collaborative research, potentially benefiting from Micron's initiative.

SK Hynix: SK Hynix, another memory competitor, faces increased competition as Micron invests heavily in research and development.

Lam Research: Lam Research's stock declined on the news of China's DUV production.

SK Hynix: SK Hynix, a leading memory maker, is similarly not immediately threatened by China's DUV progress, but long-term competition in memory chips could intensify as China advances.