Authorized stock is the maximum number of shares that a corporation is legally permitted to issue, as specified in its articles of incorporation. "Authorized shares" refers to the number of shares the corporation is allowed to issue under its certificate or articles of incorporation.Outstanding shares are shares of stock that have been issued. They are "authorized" because they fall within the maximum number of shares a company can sell according to its corporate charter. Authorized shares have the company's management's approval but have not, yet, been issued to the trading market. Authorized shares are the maximum number of shares a company can issue, while outstanding shares are the number of shares that have already been issued. Issued shares are drawn from the total pool of authorized shares and can never exceed the number of authorized shares. While authorized stock sets the upper limit, issued shares represent the actual number of shares that have been distributed to shareholders. Issued and outstanding shares.