Winbond Electronics is trading at TWD 160.50, down 5.87%, in line with broad semiconductor weakness; SOXX is down 2.50%. - Sector sentiment faced pressure from technology earnings concerns and Samsung’s cautious memory-market outlook; Taiwan’s market was also expected to open lower on October 30. - No clear company-specific announcement explaining the decline was found; the latest official news listing showed a September acquisition announcement and an October 5 monthly revenue notice. - Provided price context lists TWD 170.50 for October 29.