As of January 2026 Century Aluminum has a market cap of C$6.35 Billion. This makes Century Aluminum the world's 3287th 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 Jan 14th, 2026 the market cap of Century Aluminum was reported to be: