I don't have problem with liquidations if they are legit. To be fair on IB, their liquidating prices are not that bad. The problem is a lot of liquidations are obviously wrong. After they are contacted, they take long time to process it. During that time, if it's in their favor, they bust them for you. Otherwise they just screw their customers. In my case here, the reason for liquidation was not enough cash to cover assignments. But after all assignments, there was over $20k cash in one of my accounts that get liquidated. It's as clear as it can be. And yet IB claims they have right to liquidate any position as they see fit according to account agreement. They basically sold my 2 ES long at 1121 in that account, and there 2 ES were protected by my Sept 1150 puts.
The frequancy that we hear about questioanble liquidations, has led me to speculate if IB has an interast in seing auto liquidations happn, & if they somehow make a profit liquidations...?