This may be a stupid question. I could not find an answer. What ifthe ATM short put part of say a 5 point bull put spread is exercised in Schwab IRA. I am approved for level 2 option trading and have plenty of liquidating value in my IRA, but not enough cash to buy the stock. if American style puts such as BA are exercised, I can always just exercise the long puts, but how does the timing work. Say the buyer of the put exercises the short put at market close. Will I be able to exercise the long put still the same day? I assume Schwab would not randomly sell my IRA long stock positions in the after hours market, right? I can avoid the problem by trading only cash settled European style SPX spreads obviously.