Japan and South Korea Equities Plunge as AI Optimism Cools; SK Hynix Records Historic Intraday Drop
AI Market Summary
Japan and South Korea equities sold off sharply as AI/semiconductor positioning unwound on concerns over crowded trades, competitive pressure, and rising perceived credit risk around the AI supply chain. The Nikkei 225 fell over 4% and Korea's KOSPI triggered circuit breakers, led by steep declines in chip and equipment names such as SK Hynix, Samsung, and Tokyo Electron. Focus now shifts to major U.S. tech earnings and AI capex sustainability.
Impact level
● High
Affected assets
NCSINIKKEI2252USD/USDT-4.21%
AI Insight · NCSINIKKEI2252USD/USDTAI Insight
▼ Bearish
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On Tuesday, equity markets in Japan and South Korea experienced a significant downturn as cooling optimism surrounding the artificial intelligence sector triggered a massive sell-off in semiconductor stocks. The Nikkei 225 fell over 4%, reaching its lowest level since May 22, while South Korea’s KOSPI plunged 8%, triggering a 20-minute circuit breaker. According to reports, SK Hynix suffered a record 30% intraday drop, contributing to a $470 billion market capitalization wipeout across the sector over the past month. Analysts from Nomura Asset Management and Fibonacci Asset Management Global cited heightened credit risks associated with NVIDIA-linked deals and concerns over the sustainability of AI infrastructure spending. With SK Hynix scheduled to report earnings on Wednesday and major U.S. tech firms like Meta Platforms due later this week, market participants remain cautious amid crowded positioning and rising competitive threats from China.
