Amkor Technology is trading at $49.66, down -4.02%, with no clear new company-specific announcement or analyst action explaining the decline.

  • Reversing after rising 6.90% on August 27, 2026.
  • The S&P 500 is up 0.45% and Nasdaq is up 0.55%, so market weakness does not explain the move.
  • Recent coverage cites below-consensus third-quarter guidance and communications-related headwinds originating with July earnings.