As of May 2026 Century Aluminum has a market cap of โน539.62 Billion. This makes Century Aluminum the world's 2939th 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 15th, 2026 the market cap of Century Aluminum was reported to be: