Quote from Nasdaq5048:
And i want to add that i think EFP doesnt really have a clearing risk because the SSF leg is marked to market, so if one chicago were to go under, and the short SSF leg doesnt get honoured. SInce all the P&L prior to the default is already in ur account, you can just sell the stock right away and incurred no loss.
I disagree.
The risk of an OCC default is remote but real. What if the stock market is closed, so that you cannot sell your stock leg? What if the market is open, but there is no bid for your stock? What if your stock has gone to zero? What if the same crisis which led to the OCC default causes the stock market to be closed, or your stock to have no bid, or your stock to have become worthless?
These circumstances, combined with an OCC default, could cause you to lose your capital invested in the stock leg. The short SSF is needed in order to hedge against the possibility of loss in the stock leg, and if that hedge fails, you can lose.
The bright side is that we are talking about your trading capital. If you are actively trading, then your funds are already exposed to risks considerably greater than that of an OCC default, so that extra risk does not materially increase the risks you are already taking by trading actively. So it makes sense to use EFPs in a trading account.
I would think that you should not entrust your entire net worth to EFPs, just as you would not jeopardize your entire net worth by gambling it all on one trade, or the continued viability of one particular broker or bank or other financial institution, or other inappropriate risks. EFPs are not protected by SIPC or FDIC, against loss resulting from an OCC default.