Ciena is trading 6.3% up at $415.33, extending its recent rebound as investors continue to favor infrastructure providers positioned to benefit from AI-led networking demand.

  • The stock's momentum follows strong Q2 2026 financial results and elevated fiscal 2026 revenue guidance, which highlighted significant growth in AI-related networking requirements.
  • While there are no fresh company-specific headlines today, the move is supported by a broader pre-market rally in technology names and generally constructive index futures.