Semiconductor Stocks Plunge on Chinese DUV Report

China's state-backed Shanghai Micro Electronics Equipment (SMEE) has begun mass-producing immersion DUV lithography equipment, planning to supply five units in 2026 and 20 in 2027 to domestic chipmakers, triggering a sharp sell-off in ASML and global semiconductor stocks. Analysts note the immediate threat is limited due to performance and reliability gaps, but the move signals a long-term challenge to ASML's dominance if Chinese technology matures.

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