As of December 2025 Century Aluminum has a market cap of โน265.87 Billion. This makes Century Aluminum the world's 3980th 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 Dec 12th, 2025 the market cap of Century Aluminum was reported to be: