Hi All, I am testing a strategy on a simulator and I need opinions on the below real life scenario which is not possible to test on a simulator. Say I have sold a 4 week to expiration Bull Put Spread and the market crashes significantly (say it falls considerably below the lower limit of my spread). In the real world, is it highly likely that I would be very quickly assigned in this scenario? Assignment is certainly more likely as you get closer to expiration but is it also more likely when option in question goes significantly into the money, even if expiration is a considerable time period away? [To simplify my question, will a 1987 Black Monday virtually guarantee a previously slightly out of the money put option to be assigned before the end of the days trading?] Any help with the above would be greatly appreciated. Thanks in advance for all responses.