You are getting Options mixed up with Futures.
Equity Options are safe and you don't get wiped out with options.
Futures are more riskier than equity options and the EURCHF black swan event you described doesn't happen often - maybe once in 10 years.
Stick with Equity Options and you will be OK.
IB was doing you a favor by warning you about your ITM option - they must have closed the position for you. Nothing absurd about preventing you from getting into this situation:
Margin Call on an IB IRA account (Need Suggestions)
I assume:
The 266.50 Call.
Auto-exercise on Saturday - then IB will liquidate the shares on Monday due to lack of funds.
The loss or profit will be the difference of $266.50 and the price SPY is sold for on Monday.
What color is your parachute is a good book for job hunters.
#1 way to find employment is to go directly to the company and know what position you want.
Worst way to find employment is to answer an ad in the paper ( I assume that could be updated to craigslist).
1 minute after market closes in most cases. One exception I know of is AAPL.
The market reacts so fast after close it might even be less than a minute.
Before market earnings is rare, especially for tech.