Corning is trading 5.4% down at $148.24 after JPMorgan placed the stock on a Negative Catalyst Watch, flagging its valuation as stretched ahead of the July 28 earnings report.

  • The downgrade adds significant pressure to the stock, which was already undergoing a sharp multi-day correction.
  • Shares are also being dragged lower by a broad global sell-off in semiconductor and AI-related technology stocks impacting the entire sector.