The Dow Jones opened down at -169, then dropped to -334 almost immediately. 16,036 minutes after open.
4 minutes after open it dropped down to -364.
5 minutes it was at 16.005.
Can you say Black Friday?
It had actually dropped to 15,948 before jumping back into the 16,000s.
Just after 12:00 it stayed below 16,000 and was dancing there a while.
Closed at 15,979.