CSI AI Index falls 3% as Chinese AI shares retreat amid valuation fears

Global Market: China stocks slide to one-week low as AI valuation concerns hit tech shares

CSI300 falls 2.3%, CSI AI -5.1% as investors reassess AI valuations; China ramps domestic DUV lithography, reducing ASML dependency. Chinese semiconductor self-sufficiency and intensified competition pressure global margins: the AI rally's sustainability is questioned across Asia.