Robert Morse
Sponsor
Not by my PC, so i’ll Give u a quick response. PM is meant to be a risk based margining system, so the OCC will shock a single stock hedged or not, part of a portfolio or not.I don't see why PM margin would be calculated differently for a single underlying. The word "Portfolio" in "Portfolio Margin" is there for a reason, it's reducing margin if the portfolio reduces risk compared to the risk of each component of the portfolio alone. If you've got only one option in your "portfolio" you haven't got a "portfolio"! I'm sure Robert knows the answer on this one though, hopefully he'll let us know.