As of December 2025 IonQ has a market cap of โน1.538 Trillion. This makes IonQ the world's 1256th 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 19th, 2025 the market cap of IonQ was reported to be: