Quote from sle:
based on your gut feel - how much of the strategy is true systematic alpha and how much is your own ability to time risk premium? Personally, I don't do "classical" dispersion unless the correlation levels are stupidly rich and I certainly would never do crap like var swap dispersion...
I agree. Selling correlation is a graveyard style trade. You spend have to short extra index vol to avoid bleeding and then spend all your time trying to justify your gap risk. And when sht hits the fan, your book explodes in size.
