Ciena is trading at $335.31, down 4.02%, amid broad technology weakness following disappointing Alphabet and Amazon results and concerns about AI spending.

  • Ciena closed at $349.37 on October 29.
  • The Nasdaq fell 2.32%, while the technology sector ETF was down 1.72% after hours.
  • No company-specific announcement explaining Ciena’s after-hours decline was identified.