Reminds me of the old Mark Twain quote; "October. This is one of the peculiarly dangerous months to speculate in stocks. The others are July, January, September, April, November, May, March, June, December, August, and February."
Twain wrote before 1929, 1987, and 1997 . . .
Perception is reality in this case.
Course if you get scared of October you also miss big bounces when everyone figures out it’s all “ok.”