The weighted average remaining contractual term and aggregate intrinsic value of options under the  foregoing plans as of December 31, 2010 were as follows:  The aggregate intrinsic value in the above table represents the total intrinsic value (the difference between  the Company’s closing stock price on the last trading day of fiscal year 2010 and the exercise price,  multiplied by the number of in-the-money options) that would have been received by the option holders  had all option holders exercised their options on December 31, 2010. Intrinsic value will change in future  periods based on the fair market value of the Company’s stock and the number of shares outstanding.  Total intrinsic values of options exercised for the years ended December 31, 2008, 2009 and 2010 were  NT$117 million, NT$113 million and NT$110 million, respectively. Total fair values of shares vested  during the years ended December 31, 2008, 2009 and 2010 were NT$238 million NT$252 million and  NT$164 million, respectively.  SENAO did not grant any options in 2008, 2009 and 2010.  A summary of the status of the Company’s nonvested shares as of December 31, 2010 and changes during  the year ended December 31, 2010 is presented below:  Weighted  Average  Remaining  Contractual  Term Aggregate  Intrinsic  Value (In Years) NT$ (In Millions) Options outstanding 2.58  117  Options exercisable 2.45  94  Shares in  Thousand Weighted- average  Grant-date Fair  Value Nonvested at January 1, 2010 9,323  $  30.92  Granted — —  Vested (4,075) 23.40  Forfeited (145) 37.60  Nonvested at December 31, 2010 5,103  36.15  As of December 31, 2010, there was NT$2 million of total unrecognized compensation expense related to  nonvested options. The expense is expected to be recognized over a weight-average period of 1.29 years.  F-74