As of February 2026 Ciena has a market cap of A$55.42 Billion. This makes Ciena the world's 632th 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 Feb 3rd, 2026 the market cap of Ciena was reported to be: