As of May 2026 Alcoa has a market cap of โน1.579 Trillion. This makes Alcoa the world's 1389th 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 6th, 2026 the market cap of Alcoa was reported to be: