As of October 2026 O'Reilly Automotive has a market cap of C$98.17 Billion. This makes O'Reilly Automotive the world's 354th 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 1st, 2026 the market cap of O'Reilly Automotive was reported to be: