Quote from newguy05:
IB is complete shit when it comes to margin/liquidation. It uses a fully automated engine.
Only thing you can do is always make sure there is enough cash in your account so it never get triggered.
I remember when i first started trading using IB, i had a fully balanced es mini option trade open with enough cash to cover. Then at night after the us market was CLOSED, the fucking thing started to auto liquidate my legs randomly using MARKET orders when the bid/ask spread for those option on futures were around 20-30pts WIDE!!!
Of course as soon as it sold off just 1 contract, my entire position became unbalanced on top of instant loss of 20-30pts, this triggered a point of no return causing further liquidations, and i could not open new trades to manually rebalance due to negative cash requirements my account now has.
So i literally just sat there...in the middle of the night, watching my position taken apart leg by leg at market order with a 20-30pt loss due to the spread on each trade, until there is nothing left. Call to customer service was of course another shitshow, one cs finally understood what is happening to my account, but he wont connect me directly to the trading desk. So it's me telling him to tell some trader in one of their asia's desk (was at night). Nothing ever got done.
I will never forget that night.
Luckily i just started using IB so didnt transfer too much money over and just chalked up to a lesson learned. After that i never let my excess drop below 30k (for a 100k account). Came from optionsxpress which is all human managed, it was quite a shock.
That been said, IB is great as a trading platform, just dont get fucked by their liquidation engine (which runs in after hours too).
ps: i would be fine in the morning if they didnt liquidate my positions during the night. But i was glad i learned this lesson earlier on.
/rant off