• Ciena posted fiscal Q3 revenue of USD 1.67 billion, up 37% year over year.
• GAAP diluted EPS rose to USD 1.83 from USD 0.35 a year earlier; non-GAAP diluted EPS increased to USD 2.11.
• GAAP gross margin widened to 45.4% from 41.3%; GAAP operating margin expanded to 18% from 6.1%.
• Optical Networking revenue climbed to USD 1.19 billion, representing 71.3% of total revenue; Routing and Switching rose to USD 164.4 million.
• Forecast fiscal Q4 revenue of USD 1.75 billion, plus or minus USD 50 million; non-GAAP operating margin seen around 20%, plus or minus 50 bps.

Disclaimer: This news brief was created by Public Technologies (PUBT) using generative artificial intelligence. While PUBT strives to provide accurate and timely information, this AI-generated content is for informational purposes only and should not be interpreted as financial, investment, or legal advice. Ciena Corporation published the original content used to generate this news brief via Business Wire (Ref. ID: 20260902113177) on September 03, 2026, and is solely responsible for the information contained therein.