As of March 2026 Ciena has a market cap of โฌ44.64 Billion. This makes Ciena the world's 457th most valuable company by market cap according to our data. The market capitalization, commonly called market cap, is the total market value of a publicly traded company's outstanding shares and is commonly used to measure how much a company is worth.
On Mar 16th, 2026 the market cap of Ciena was reported to be: