February 26th, 2010, 2:21 pm
Hello,Say a stock trades at 50, with an ex-div tomorrow, of 1. We assume the spot only moves overnight to 49 at open the following morning.Before end of day,the 20 american call (assuming it is an early exercise candidate) price should be intrinsic : 30. The following day, it should then be worth 29 and some the 20 European call should be right below intrinsic : 29 and should open close to 29 the following daythe 20 European Asian call also should not change overnight , if today is the first of calculation of the average (calculated based on close prices) Regards,