Out of the top five worst days in stock market history, two of those occurred within the last 4 days.

https://en.wikipedia.org/wiki/List_of_largest_daily_changes_in_the_Dow_Jones_Industrial_Average#Largest_percentage_changes

NASDAQ UNOFFICIALLY CLOSES DOWN 981.37 POINTS, OR 12.46 PERCENT, AT 6,893.51

DOW JONES UNOFFICIALLY CLOSES DOWN 3,061.70 POINTS, OR 13.21 PERCENT, AT 20,123.92

S&P 500 UNOFFICIALLY CLOSES DOWN 327.20 POINTS, OR 12.07 PERCENT, AT 2,383.82

— *Walter Bloomberg (@DeItaone) March 16, 2020