As of February 2026 Ciena has a market cap of โน3.527 Trillion. This makes Ciena the world's 631th 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: