As of November 2026 Ioneer has a market cap of โน18.21 Billion. This makes Ioneer the world's 9017th 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 Nov 10th, 2026 the market cap of Ioneer was reported to be: