As of October 2026 Century Aluminum has a market cap of โน344.48 Billion. This makes Century Aluminum the world's 3782th 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 Oct 7th, 2026 the market cap of Century Aluminum was reported to be: