China is bracing for a potential massive sell-off of a high-profile artificial intelligence chip stock on Thursday, when a lock-up period affecting 14 million shares in MetaX Integrated Circuits is set to expire. Analysts expect MetaX to face “significant selling pressure” when the restricted shares are released for trading, after the expiry of a similar lock-up period for shares in fellow AI chip firm Moore Threads last week sparked an avalanche of sales that wiped nearly 49 billion yuan...