As of February 2026 ArcelorMittal has a market cap of HK$390.48 Billion. This makes ArcelorMittal the world's 497th 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 Feb 21st, 2026 the market cap of ArcelorMittal was reported to be: