SMIC is trading at HK$44.58, with a -4.82% change on October 23, amid semiconductor-sector pressure after Lam Research’s cautious outlook highlighted supply constraints. - Broader worries about AI spending also weighed on chip stocks. - No clear company-specific announcement explaining the decline was found. A report showed southbound net selling of about HK$911 million in SMIC, but did not establish it as the cause.