SiTime is trading 4.12% down at $480.94 on October 16, 2026, amid a continuing global semiconductor selloff. - Reports point to hotter-than-expected U.S. inflation, renewed interest-rate concerns, and worries about debt financing and the sustainability of AI infrastructure spending as sector-wide pressures; no clear new SiTime-specific catalyst was identified. - The company’s latest newsroom item was dated October 14, and its investor relations site says third-quarter results are scheduled for November 4.