Teradyne is trading 4.1% down now at $356.80, with no new company-specific announcement or clearly stated August 28, 2026 catalyst identified.

  • Major U.S. indexes are modestly higher, while Teradyne remains below its August 27 close of $372.06.
  • The most recent cited pressure is Baird’s August 21 downgrade to Neutral, citing valuation and limited near-term catalysts.
  • Available coverage does not directly attribute the current decline to that action; trading remains active during the open session.