I lost a significant amount today, in my opinion, because of incorrect liquidation by IB
I was trading an iron condor that would expire today. I collected $2500 in credit for a spread which was $10000 wide. Risk $7500 (at least I thought). My account had sufficient margin to cover this exposure.
Unfortunately, towards the end of the day, the put side of the condor got ITM. At that point, IB's liquidation algo went crazy: it liquidated the long leg of my position and let the short one run. They left me with a naked short position!
The underlying continued to fall and 15 minutes later also the short side was liquidated, at a $15k loss, twice as big as the risk I thought I took on. Shortly thereafter price was going up again. At end of the day my position would have been only partially ITM
Surely they cannot do this right? They should always have liquidated the spread as a whole. Not only the long side.
But it's actually worse: during the liquidation process of my long leg, various other, very profitable, positions were liquidated as well, which did not consume any margin!
I spend days legging into risk-free trades (i.e. no cost calendar spreads, no cost debit-spreads) and created a massive arb position that would expire next week after earnings release, which would generate me a very substantial profit.
Not only did I lose on the condor trade, I also lost my risk-free arbs and with that a big sure profit.
I've called IB. The representative who helped me understood my situation and I had the idea he agreed to my point, but he mentioned he could not do anything as this was "how the system worked".
I'm extremely upset at the moment. I guess IB has their ass covered in situations like these, so no possibility I can get anything refunded, even though I really feel it has not been handled correctly on their part.