UMC Climbs 5% During Regular Trading as Semiconductor Sector ReboundsUS Stock Market UpdateJul 8, 2026 at 11:31 AM联电 (UMC.US) 盘中涨超 5%,现报 24.6 美元。半导体板块早盘受三星业绩影响下跌后反弹。此前联电曾于 7 月 7 日因半导体板块走弱下跌近 8%,当日费城半导体指数重挫逾 7%。