As of February 2026 Aptose Biosciences has a market cap of $4.36 Million USD. This makes Aptose Biosciences the world's 10446th 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 Feb 3rd, 2026 the market cap of Aptose Biosciences was reported to be: