Ciena poised to beat earnings expectations at June 4 report as AI data center demand outpaces optical networking supply

Ciena released fiscal Q1 2026 revenue of $1.43 billion (33% year-over-year increase) and adjusted earnings up 111% year-over-year. The company projects full-year fiscal 2026 revenue of $6.1 billion at the midpoint of guidance, representing 28% growth. Ciena stock has gained 136% in 2026 as of the article's writing.

Ciena supplies optical networking components (high-speed data transfer equipment) that link AI data centers together. The company's demand exceeds supply, leading to price increases; management expects supply constraints to persist "at least for the next several quarters." Ciena ended fiscal Q1 with a $7 billion order backlog, exceeding its quarterly revenue.

The global data center interconnect market is estimated to grow from just under $19 billion this year to almost $65 billion in 2035, at an annual rate of almost 15%, according to Precedence Research. Demand for optical networking components could increase at a compound annual growth rate (CAGR) of 21% over the next five years, per Cignal AI.