A company's capital stock is the money that stockholders invest in order to start or expand the business. capital. Collins COBUILD Key Words for Finance.Capital stock is the amount of common and preferred shares that a company is authorized to issue, according to its corporate charter. Capital stock in accounting is ownership value received for preferred and common shares of a corporation. In economics, Capital stock is production assets. Examples from Collins dictionaries​​ The bank has a capital stock of almost 100 million dollars. It is the total amount of physical capital at any particular moment in time. Capital is one of the factors of production. Unit 6: Stocks and bonds. Please fill out this field.