Dow Jones Crash

Any thoughts on how you would get from Point A to Point B?
A 48% drop

Covid had a 38% drop
9/11 had a 28% drop

Clue #1: The End of Quarter Dates are very important. Contract Expiration’s
Clue #2: The End of Year Dates are the most important. Long Term Contract Expiration’s

Any thoughts on what that Bright Yellow Line Is? Dec 31 Price is 16700