CHAT is trading at $86.38 (-2.34%) after-hours, with no confirmed late-breaking technology-sector catalyst explaining the decline.

  • Regular-session gains followed the Federal Reserve’s 25-basis-point hike, easing policy uncertainty and lifting technology shares.
  • Information Technology led the S&P 500, gaining approximately 2%; the Nasdaq rose about 1.6%.
  • The weakness appears consistent with profit-taking, ETF-specific flows, or rebalancing; futures remained higher, and available reporting identified no major dominant-holding earnings shock or broad technology selloff for September 18, 2026.