Quote from sle:
I think you need to understand (in order of importance)
(a) what a variance swap is and how to replicate it (and yes, it works, the jump component on SPX is relatively small)
(b) what forward variance swap is and how it can be linearly replicated via spot-starting variance swaps
(c) what is the exact definition of the vix futures and why a vix futures contract is NOT a forward variance swap
Additional points are:
1. So far, my experience have been that majority of people who trade VIX products have no real clue what they are talking about
2. Anything that has the Talebs name on it has to be taken with a brick of salt (e.g the paper you have linked up)
What I was referring to was that in the calculation of the value of the VIX, I don't think there's any actual variance swap trading going on. It simply uses the prices of options on the SPX to theoretically replicate a variance swap. Am I wrong, sle? I'd love to be corrected- knowing more is always better... lol
I understand how a variance swap can be replicated (and yeah the index doesn't jump around much- my bad. I should've thought of that before opening my mouth... so that invalidates much of what I wrote earlier).
As for Taleb, I thought that paper was very interesting in terms of how people viewed standard deviation. He goes off into esoteric topics most often and is a bit of a turn off but I think he's had some very useful insights into the markets.