Book value per share of stock

A measurement used to evaluate the current value of a company's shares 

Book value per share of stock is the total stockholder's equity minus Preferred Stock or shares divided by the No. of shares outstanding 

                                       Stockholders Equity - Preferred Stock
                                             ------------------------------------------------
                                                No.of shares outstanding

Book value per share of stock is a tool for investor that can be used to determine whether shares are overvalued or undervalued