MediaTek is trading 4.49% down at TWD 4,045.00 on October 29, 2026, amid broader Taiwan market weakness. - The TAIEX fell 1.42% to 46,368.33; Taiwan News reported all its most heavily weighted stocks closed lower. - MediaTek declined alongside other large technology stocks, with technology shares under pressure amid fragile buying after the prior session’s rebound. - No clear MediaTek-specific announcement was identified; its third-quarter results conference was scheduled for October 30.