As of December 2025 ioneer has a market cap of โน24.93 Billion. This makes ioneer the world's 8058th 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 17th, 2025 the market cap of ioneer was reported to be: