So this would be inexperienced options traders not closing deep in the money calls and getting exercised, without having enough cash and margin to exercise, right?
In that case they face an instant margin call, and their (rather unhappy) broker would attempt to reduce the overnight and weekend holding risks of the shares received. Since they are only getting the shares on Saturday, but know the excercises on Friday 5:30 PM already, they'd want to go short a matching number of TSLA shares late Friday.
Those call option holders would then get the cash from the after hours fire sale, with poor execution.
@Curt Renz,
@ggr, is this the likely procedure in this case?
Another possibility is for brokers to wait until the next trading day (Tuesday next week) to liquidate the margin called account - but then they'd be carrying the stock over the weekend - which is an extra risk for them.
An interesting scenario is if Buffett announces a stake in Tesla over the weekend and the TSLA price gaps to $1,000 on Tuesday, the call option holder would miss out on those gains with a Friday liquidation.
Can the broker legally liquidate on Friday already, which is technically
before the options contracts transfer the shares?