There was plenty of time to force a liquidation upon maintenance margin violation. The move from 1.20 to 1.10 took roughly 5 minutes, during which time my, and many other accounts would have been negative. If the auto liquidate risk management algo works in real time and is indeed automatic, the worst possible outcome withing that first five minutes would have be a liquidation at the low around 1.0550. If accounts were liquidated within the first few minutes, the worst possible liquidation would have been around 1.10. I would expect any advertised real time and automatic risk management algorithm to act in real time, and automatically. The worst case scenario liquidation within the first five minutes after the move would have saved tens of thousands of dollars. IB liquidating all it's negative excess liquidity accounts would have had a nominal effect on the plunging EUR/CHF given global selling volumes at that time.
And no, Loyek590, you as a client of IB are not bailing out any clients with negative accounts. If you are actually a client of IB, then the $120M hit that IB took with it's exposure to negative client accounts (which represents less than 3% of IB's capital), would come out of corporate profits. However, I'm assuming that they will indeed recover a significant portion of this number. As someone who lost a sizable piece of their net worth, which I accept and risked upon the assumption of this risk, am not worried about a couple basis points of corporate profits for the sake of accepting some customer service rep's excuse that they decided not to be protecting themselves or their clients at that particular time.