
Korea's "Black Tuesday": Samsung and SK Hynix Plunge as a Chinese Memory Breakthrough Rattles the AI Chip Trade
South Korea's Kospi fell more than 7% intraday on October 13 and triggered a trading curb. SK Hynix dropped 10% and Samsung Electronics 7.4% after China's CXMT reported progress on denser DRAM, raising doubts about how long the AI-driven memory boom can last.








