$NVDAB #SKHynixPlunges13%AsKOSPIDrops10% Skepticism around massive AI infrastructure returns triggered a sharp global semiconductor selloff. China Chip Breakthrough:Reports of Chinese DUV lithography localization and CXMT’s market surge intensified competitive fears. SK Hynix & Samsung Collapse:SK Hynix sank 13% and Samsung dropped ~12%, losing ground as US-listed ADRs plummeted. kOSPI Market Halt:South Korea's benchmark KOSPI plunged over 10%, triggering automatic circuit-breaker trading halts.