Stock, or inventory, refers to the goods and materials that a business holds for the purpose of resale or production. It includes finished products, raw materials, and work-in-progress items. Managing stock effectively is crucial for businesses to meet customer demand without overstocking, which can lead to increased costs and waste. Keeping track of stock levels helps businesses maintain a smooth operation. Tools like inventory management software can assist in monitoring stock, ensuring that items are reordered at the right time. This balance helps businesses stay competitive and profitable while providing customers with the products they need when they need them.