Does anyone know any cheap software out there that automatically does weighted vega? Im getting a little sick of putting thing in my rudamentary excel spreadsheet. Thanks, Mark http://www.option911.com
What are you using? 1/sqrt(t)? Are you accounting for skew as well as atm term structure? I believe that Egar Tech has a product off the shelf, but I've never used it. http://www.egartech.com/
I am using 1/sqrt for the most part. I made a couple changes to it to make if fit my trading style. Although, id rather use a more complex system that I dont have to write myself. I am accounting for skew, although a chunk of that gets accounted for in the way vega falls off anyway. Ill check out egartech though. Thanks! Mark http://www.option911.com