KLA is trading 4.01% down at $170.52 on October 15, with broad semiconductor weakness and concerns about AI spending and high valuations weighing on shares. - The decline extends a multiday slide; no clear KLA-specific announcement emerged in the search. - Reuters said hotter U.S. inflation intensified rate-hike worries and reignited the AI-stock selloff; SOXX fell 3.68% during the regular session.