This metric shows the percentage change in Common shares outstanding.
(Shares outstanding (prev. period)) / Shares outstanding (current)) / Shares outstanding (prev. period)) * 100%
A positive value indicates that the number of shares is declining, while negative values mean that the company is releasing new Common shares. A company can shrink its share base by buying stock back and slowing down the issuance of new shares. Conversely, a company can increase its share base by issuing new stock to raise money or give to employees.