Amkor Technology is trading 10.11% down now at $32.05, amid a broad semiconductor selloff. - Chip stocks faced pressure over concerns tighter AI data-center rules could slow construction and weak smartphone-chip demand highlighted by Qualcomm’s results. - Reuters reported chip and data-center-related stocks remained under pressure on November 5; Amkor shares had fallen 5.21% on November 4. - No company-specific announcement explaining the intraday decline was identified; broader technology weakness added pressure.