The trailing one- and three-year annualized growth rate per share in a company's shareholders' equity, or book value. Equity per share represents the net-asset value backing up each share of the company's stock. Growth in equity per share is therefore one of the key variables in determining if a company is increasing shareholder wealth over time. Note, too, that because it's expressed on a per-share basis, equity growth per share takes into account dilution from new-share issuances. Equity is a company's total assets minus its total liabilities—in other words, what's left over for shareholders. Equity growth per share shows how quickly shareholders' stake in the company is growing.