As of December 2025 Alcoa has a market cap of โน1.242 Trillion. This makes Alcoa the world's 1521th 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 22nd, 2025 the market cap of Alcoa was reported to be: