Ciena is trading 4.62% down at $343.00 in pre-market on October 15, as hotter-than-expected U.S. inflation and renewed interest-rate concerns pressure technology and AI-infrastructure stocks.

  • Ciena closed at $359.60 on October 14; Reuters reported higher-rate concerns weighed on AI and technology shares.
  • Bank of America’s outlook for 35%–40% revenue growth in 2026 on AI demand is supportive but does not explain the drop. No clear company-specific negative catalyst was identified; price history shows substantial recent declines.