The AI industry chain boom has driven gains in Japanese and South Korean chip stocks, with SK Hynitz rising over 9% and Samsung Electronics up more than 6%, lifting the Korean KOSPI index by over 6%. The Korean exchange activated the Sidecar mechanism to suspend programmatic buying. Japan’s Nikkei 225 rose approximately 1.7%, with Kioxia up over 8%, ROHM up over 4%, and SoftBank Group up over 3%. In the U.S., the Philadelphia Semiconductor Index closed up 5.21%, with Intel and AMD rising over 8%, Arm up over 7%, TSMC ADR up over 5%, SanDisk up over 14%, SK Hynix ADR up over 13%, and Micron Technology and Western Digital up over 12%.
AI hype drives sharp gains in Japanese and South Korean chip stocks
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Summary
The AI boom has pushed Japanese and South Korean chip stocks higher, with SK Hynix up over 9% and Samsung Electronics up over 6%. The KOSPI index surged 6%, triggering the sidecar mechanism. On-chain data shows strong buying pressure. In Japan, Kioxia rose over 8%, Rohm Semiconductor over 4%, and SoftBank Group over 3%. The Nikkei 225 gained 1.7%. Meanwhile, the U.S. Fear & Greed Index reached a recent high, with the Philadelphia Semiconductor Index up 5.21%. Intel and AMD rose over 8%, Arm over 7%, TSMC ADR over 5%, and SanDisk over 14%.
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