As of January 2026 James Hardie Industries has a market cap of โน1.273 Trillion. This makes James Hardie Industries the world's 1560th 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 20th, 2026 the market cap of James Hardie Industries was reported to be: