In the old thread, "IB Margin Changes", IB employee IBsoft was clarifying a few points regarding IB's automatic liquidation software.
But the thread was closed before the discussion ended.
IBsoft, will you continue this discussion here? Sorry for the inconvenience.
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Quote from IBsoft:
1) Yes, the auto-liq software has the capability to use combinations/strategies.
But to reduce margin in (for example) a customer portfolio margin account, where positions are margined based on class groups, the auto liquidation software would have to execute legs simultaneously.
And to be fair to the customer, the software would have to allow the customer to retain the ability to execute both sides of each class group when a margin call is in effect, rather than being blocked from trading due to the fact that the only way to reduce margin would be to execute both sides simultaneously.
Are you saying that the IB auto liquidation software auto liquidates (and allows the customer to liquidate) in an orderly class-group by class-group manner rather than rip through the positions the way you might auto liquidate a standard Reg T portfolio
Can you comment a little more on this issue?
Quote from IBsoft:
2) We have various circuit-breakers that monitor (i) portfolio value and margin value jumps on the individual accounts level and system-wide level, as well as (ii) number of recent auto-liquidation trades, attempts, account deficits and similar. These breakers can suspend the auto-liquidation process. When that occurs, human review takes place.
Do the breakers ever preempt an auto liquidation or do they only suspend an auto liquidation that is underway?
How much time does the IB auto-trading software give the circuit-breakers to review the data described in (i) and (ii) and then give an "all-clear" before the auto liquidation trigger is pulled? Is it one-tenth of a second, 10 minutes, or something in between?
Quote from IBsoft:
3) We do not track the instances when TH takes the opposite side of a liquidated order. We do not know whether they amount to a profit, or a loss. The auto-liquidation trades represent a tiny fraction of the total number of trades IB executes a day.
IBsoft, quick follow-up question on the above, are you saying that IB does not have any record of when TH has executed the opposite side of an IB customer trade (auto liq or otherwise)?
Or just that such info is not available for disclosure to the IB customer?