AutoZone (AZO) Stock Analysis & Winston Score

AutoZone sells car parts, accessories, and repair tools to everyday drivers and professional mechanics. It operates one of the largest chains of auto parts stores in the United States, with additional locations in Mexico and Brazil. The company carries everything from oil and batteries to brake pads and engine components under its own store brand as well as national brands. AutoZone makes money by selling products directly in its stores and online, with no subscription model — customers pay per purchase. It runs roughly 7,000 stores across the Americas and generates strong returns, partly because car owners often have no choice but to fix their vehicles. Its moat comes from its massive inventory, fast parts availability, and free in-store services like loaner tools and diagnostic checks. The main growth driver is the aging U.S. vehicle fleet, which means more cars needing repairs, but a key risk is rising competition from online retailers like Amazon eating into parts sales.