I think we're all confused as to what exactly you're asking @antares66 Another thing you could be asking is will your broker let you hold options where the value if you exercised them would exceed your account balance. The answer for IB is that they'll let you do that up to about 2 days before exercise, this you're subject to autoliquidation. Every broker has some way to ensure you have the cash to buy the stock if you hold to expiration, but usually don't care until just before expiration.
I think officially they liquidate up to the day before, I've had them do it 2 days before so like many things at IB your results may vary depending on what "the algorithm" decides to do.Is this standard in IB ? I thought that if the post-expiry margin predicted (in account window) was in excess of the allowed, they would autoliquidate option positions before the maturity.
If this is an important issue for you don't you think it would be best to call or message your broker for an up to date process? Whatever current IB clients believe to be true, IB has shown a pattern of changing their process without warning.Is this standard in IB ?