As of October 2026 Microsoft has a market cap of C$5.543 Trillion. This makes Microsoft the world's 3rd 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 Oct 26th, 2026 the market cap of Microsoft was reported to be: