Can someone tell me how to calculate/estimate time decay value in calls & puts
currently Nifty is trading at 5475
Aug 5400CE is trading at 75
Sept 5400CE is trading at 160
Every option has Intrinsic value + time value
In above e.g 5400CE has intrinsic value of 75 (current Nifty price - Strike price) = 5475-5400.
This means Aug CE has only intrinsic value & zero time value.
Where as Sept 5400CE has intrinsic value of 75 + time value of 85 = 160.
This because Aug series is expiring today & no time value is left
Similar logic can be applied for put in reverse way