Unless otherwise indicated, “we,” “us,” “our,” and similar terms, as well as references to the “Company,” refer to O’Reilly Automotive, Inc. and its Subsidiaries. O’Reilly is one of the largest specialty retailers of automotive aftermarket parts, tools, supplies, equipment, and accessories across North America, selling our products to both do-it-yourself (“DIY”) and professional service provider customers, our “dual market strategy.” The business was founded in 1957 by Charles F. O’Reilly and his son, Charles H. “Chub’’ O’Reilly, Sr., and initially operated from a single store in Springfield, Missouri. Our common stock has traded on The Nasdaq Global Select Market under the symbol “ORLY” since April 22, 1993. ​ On June 10, 2025, the Company completed a 15-for-1 forward stock split of our common stock. All share and per share information, including share-based compensation, in the current and comparable periods throughout this annual report on Form 10-K, has been retrospectively adjusted to reflect the stock split. All shares of common stock retained a par value of $0.01 per share. ​ At December 31, 2025, we operated 6,447 stores in 48 states in the United States (“U.S.