Abstract:  Inventory management plays a critical role in the operational efficiency and financial health of a company. Among the key metrics used to evaluate inventory performance are inventory turnover and days inventory outstanding (DIO), which provide insight into how effectively a firm manages its stock relative to its sales. Apple Inc., as one of the world’s leading technology companies, offers a compelling case study in efficient inventory control. With a business model that emphasizes rapid product development and just-in-time supply chain practices, Apple maintains a relatively high inventory turnover compared to many other industries. This introduction aims to examine how Apple’s inventory performance compares across different sectors, and what its strategy reveals about broader trends in inventory management across industries.