Quote from koolaid:
why would anyone count unrealized profits?
Quote from Soon2Bgreat:
Some people go by the account liquidation value/nav - I could come up with a strategy that has realized profits everyday by simply closing winners and letting losers run, but you probably wouldn't want to actually trade that.
Not saying that's what sellindexvol66 is doing, just offering perspective. IMO, there's plenty of ways of calculating PL based on margining, what/how you trade, and who's money you're managing.