Howard, didn't you provide estimates for your maximum losses as % of equity earlier in the thread?
Risk Analysis
I have touched on it in the past, but here is the full story.
I bail when the loss on capital at risk hits 20%. Since bailing, for me, is buying back the spread at market, I set my estimated potential loss at 30%.
Since 45 days to expiration is generally thought of as a good point to start capturing time decay, my spreads are entered more than one month before expiration. Weeklies are, of course, the exception. In fact, I generally enter a new spread as soon as the quarantined funds become available. This is usually 59 days before expiration.
Since I am in multiple correlated indexes for instructional purposes, let's assume that everything for that month went against me. That means that half my at-risk capital may suffer a 30% loss. Even though I am never "all in," lets set this to 15% total account exposure.
But wait. For the Iron Condors, the market can't be against me on both sides at once. So only half of my trades for that month will suffer a 30% loss in a two month cycle. Now we are down to a 7.5% total account exposure.
But wait. If one side of an Iron Condor goes against me, then I will have rolled 2-4 times on the other side for credits equal to the credit on the initial spread. Let's be conservative and use 2 for our thought experiment. If I have rolled twice, that is three spreads for an average of 5% each. So the losing side suffers a 30% loss and the winning side has a 15% gain.
Back to the top. Bad month nets 15% loss on half the account of a two month cycle.
A bad day at black rock would expose me to approximately a 4% account loss.
I did this pretty quickly, so help me find any errors in this reasoning. Thanks.