A stock account is a type of real account. Real accounts are accounts that relate to assets and liabilities, and they are used to keep track of the financial position of a business. Stock accounts are used to track the value of goods held for resale by a business. They are categorized as real accounts because they represent a tangible asset of the business. The balance of a stock account reflects the cost of the goods on hand, and it is adjusted when new stock is purchased or when goods are sold.