Got it! Thanks so much once again. Fantastic help!It's not. >skew = more gains from Derman.
Sorry to be a pain Destriero but i have one more question.
Regarding the timing of the calendar and the 25d risky. Say for example i am going to trade the May/Jun calendar, do you look at both of those riskies and therefore the skew of both May and Jun? Whats is the process there?
What I mean to say is, is the the individual months skew a factor or do you just look at the skew of the month you are going to short, in this case May?
Thanks again