Robert Morse
Sponsor
IMO, the 2/2018 crash was caused by the delisting of the VIX ETN. It created the need for a large unwinding of the future after 4 o’clock that day. It moved from around 17 to 33/34 in 2 large buy orders.
When you say under 3550, you are referring to the SPX?
I've collected some reports about the Feb 2018 crash and have been analyzing them to find what common factors were involved. You can find them with some googling. I will consider your scenario in my monte-carlo rough-volatility simulator