On October 30, 2026, TSMC is trading at $405.56, with a -6.39% change, as semiconductor stocks broadly sell off. - Reuters reported US-listed TSMC shares fell 3.3%. - Reuters linked the rout to Intel’s weak outlook, concerns about weakening PC demand, and investor wariness over the vast spending required to build AI infrastructure. - SOXX was down 10.40% during the regular session.