As of December 2025 Canadian National Railway has a market cap of โน5.547 Trillion. This makes Canadian National Railway the world's 362th 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 4th, 2025 the market cap of Canadian National Railway was reported to be: