SiTime is trading 6.57% down now at $490.86 after a broad semiconductor selloff, with no clear company-specific catalyst identified. - Sector pressure reflects hotter-than-expected U.S. inflation and renewed rate-hike concerns. - Concerns also include the sustainability and financing of AI infrastructure spending; coverage describes the chip rout as global. - SiTime’s newsroom lists a platform announcement dated October 14, but it does not clearly explain the decline.