Hong Kong stocks fluctuate | PCB concept stocks all plummet | Huang Renxun denies rumors of Rubin Ultra delay | Institutions point out that the crowding of AI hardware has eased.

According to the Smart Financial APP, PCB concept stocks all plummeted. As of the time of publication, JianTao Group (00148.HK) fell by 15.85% to 61.85 Hong Kong dollars; JianTao laminated board (01888.HK) fell by 14.65% to 53.6 Hong Kong dollars; DaZu CNC (03200.HK) fell by 12.34% to 120.1 Hong Kong dollars; Guanghe Technology (01989) fell by 4.78% to 129.5 Hong Kong dollars.