As of September 2026 Quantinuum Inc. has a market cap of C$19.21 Billion. This makes Quantinuum Inc. the world's 1599th 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 Sep 22nd, 2026 the market cap of Quantinuum Inc. was reported to be: