KLA is trading 5.98% down at $140.84 as part of a broader chip-sector selloff tied to concerns that tighter scrutiny and possible data-center construction restrictions could slow AI infrastructure growth and semiconductor demand.

  • Reuters reported chip- and data-center-related stocks were under pressure on November 5 after election results heightened those concerns.
  • Semiconductors were down 3.35%; no new KLA-specific catalyst surfaced, and the move appears sector-driven rather than tied to a company announcement.