Ciena's second quarter 2026 revenue grew 40% to $1.57 billion, driven by accelerating AI-related demand from cloud providers.

Ciena reported fiscal second quarter 2026 revenue of $1.57 billion, up 40% year-over-year and beating estimates. Adjusted EPS was $1.64, a 290% increase from the prior year and also ahead of expectations. The company raised its full-year revenue guidance, citing strong demand for high-speed connectivity.

Key Highlights

• Cloud provider revenue grew 70% year-over-year, now representing 46% of total revenue for the quarter.
• Ciena raised its full fiscal year 2026 revenue guidance to a midpoint of $6.3 billion, which would represent 32% year-over-year growth.
• Adjusted operating margin expanded to 19.5% from 8.2% in the prior-year quarter, demonstrating significant operating leverage.
• The company's Networking Platforms segment revenue grew 47% year-over-year to $1.27 billion, led by strong performance in Optical Networking.