As of May 2026 Ciena has a market cap of A$115.13 Billion. This makes Ciena the world's 294th 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 May 24th, 2026 the market cap of Ciena was reported to be: