As of September 2026 Capital One has a market cap of S$158.42 Billion. This makes Capital One the world's 180th 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 19th, 2026 the market cap of Capital One was reported to be: