Should you close your IB accounts now?

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Quote from rew:

In the options forum there is a guy with an IB account who posted the strange case of where his SPY 119/114 put debit spread (long the 119 puts, short the 114 puts) was auto liquidated yesterday at a loss. Apparently he had no margin positions at all, the auto liquidation happened during the Thursday madness because for a while it looked like the 114 put was worth more than the 119 put. This of course, should never happen. A auto liquidation program should know that debit vertical spreads can't be worth less than 0, credit vertical spreads can't be worth less than the negative of the difference between the strikes (e.g., short the NDX 1825 put and long the NDX 1800 put can't be worth less than -2500), and long calendar spreads can't be worth less than 0 so long as it's before the expiration of the shorter maturity option. In all cases you could just hold the position until expiration to avoid losing any more than the stated amounts. This holds no matter what fantasy prices appear in the option markets on a crash day like Thursday. If an auto liquidation program doesn't understand these things then IB is too dangerous a platform for option traders.

That's a very good point. Calendar spreads are treated separately in order to avoid such confusion but I am not sure regarding different strikes...
 
You guys from IB can bet your asses that if any of these scenarios happen you will get threads here on ET ruining your reputation, I will certainly make one and I will be pretty loud about it. So you might want to factor in reputational and collapse of the brokerage division into the calculations of the profitability of this 'auto-liquidation' BS
 
Quote from ids:

We never auto-liquidate instantaneously. You always have 10 minutes to deal with a problem.

Heres a complete list of the people who avoided liquidation during that 10min:
 
Quote from rew:

A auto liquidation program should know that debit vertical spreads can't be worth less than 0, credit vertical spreads can't be worth less than the negative of the difference between the strikes (e.g., short the NDX 1825 put and long the NDX 1800 put can't be worth less than -2500), and long calendar spreads can't be worth less than 0 so long as it's before the expiration of the shorter maturity option.

Yes, they can, as the posts in that thread showed quite clearly.

All kinds of assumptions about what constitutes maximum realizable risk have a common underlying assumption - namely, that liquidity hasn't disappeared. For a while, yesterday, it did, and the auto liquifier did what it was supposed to do, make decisions on the ACTUAL market and not on the THEORETICAL one.

What you are in effect asking for is for IB to take on more risk so customers can "safely" take on more leverage. I'm sorry, but that does not strike me as a rational request. And in fact suggests a great many folks have learned exactly nothing from the events of the past two years.

Cheers.
 
Quote from GTG:

Dude, have you read the other thread in the options forum about the guy who had his vertical put spreads auto-liquidated at worse prices than the max-loss for a vertical spread? Options wouldn't have necessarily saved you yesterday. I'm a long-time IB customer and I am very disturbed by the issues with IB's auto-liquidation code that have come to light through yesterday's market action.

I have been on the receiving end of auto liquidation which is why any large positions are always hedged by far OTM long dated options which are not traded and there is no margin involved as I am just talking about long options not verticals. Under the $1M cash port scenario it would just be my cost of doing business.
 
Quote from ids:We never auto-liquidate instantaneously. You always have 10 minutes to deal with a problem
I see. Is that why in this thread IB sold the long puts first and then gave the poor guy 10 minutes (well, kind of - what's a few minutes here and there out of a whole 10 minutes?) and then bought in the short puts of a fully paid for debit put vertical?
 
Quote from Random.Capital:All kinds of assumptions about what constitutes maximum realizable risk have a common underlying assumption - namely, that liquidity hasn't disappeared
What are you talking about? If you are long 119 puts and short the 114 put on the same expiry what does the risk of that position has to do with liquidity? You already paid for it when you put that vertical on. That's your max. risk. Ever. Even if SPY get's delisted. Even if it goes to 0. Even if it goes to 1000. Assignment risk? Someone assigns you on that 114 put? Just turn around assign some sucker on that 119 put. Yes, you would lose the $500 that would be the value of that vertical. but that's only if you actually get assigned. It's like saying on the road I might get run over by a car, so I might as well jump under one and get it over with.
 
Quote from DarthSidious:

...what does the risk of that position has to do with liquidity? You already paid for it when you put that vertical on. That's your max. risk. Ever.

You are assuming rational bid for one leg, and rational ask for the other.

There is no guarantee you will get that at all times, as hopefully everybody learned yesterday.

To repeat - the market does NOT owe you a "reasonable" bid or ask - and without that, you cannot make ANY rock-solid assumptions about maximum risk on ANY trading vehicle that implies leverage (eg, the short leg of a vertical).

That is part of the price for cheap, near-instantaneous access to the markets. If you want actual reasonable humans making actual reasonable decisions on all trades/positions at times like this, you better be ready to fork over a lot more money in commissions and give up a lot of execution speed.
 
Quote from DarthSidious:

What are you talking about? If you are long 119 puts and short the 114 put on the same expiry what does the risk of that position has to do with liquidity? You already paid for it when you put that vertical on. That's your max. risk. Ever. Even if SPY get's delisted. Even if it goes to 0. Even if it goes to 1000. Assignment risk? Someone assigns you on that 114 put? Just turn around assign some sucker on that 119 put. Yes, you would lose the $500 that would be the value of that vertical. but that's only if you actually get assigned. It's like saying on the road I might get run over by a car, so I might as well jump under one and get it over with.

Okay heres a thought exercise:
Maybe the problem was he didn't have the $11400 required to become exercised per option? For example for the SPy option, The program calculated he needed 16*11400 is 160k+ and maybe he had only 50k in his account, and when the bid just disappeared it was as if he bought 160k worth of stock with 50k (3x leverage then loaned 100k) that was based on a regular bid 160k, but on the no liquidity bid worth 90k, which put him -10k negative on margin. Then the auto-liquidating may be based on that.
This is just a wild guess though.
 
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