As of May 2026 ArcelorMittal has a market cap of ยฃ35.83 Billion. This makes ArcelorMittal the world's 520th 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 12th, 2026 the market cap of ArcelorMittal was reported to be: