That's the day I almost gave it all up. I think we were waiting on a Fed release, but the market had been eroding for days, and just kept going. Around 11 AM I was at the puke point. I said give it till 3 PM, if it doesn't do something soon I'll have to do something (exit a few positions). Sure enough up she went. That day i learned to hedge most positions, based on chart action. The March 2020 Covid lows were not quite as bad for me.
So we're seeing a weak point here now too. My best sources say a 5-10% correction before a fall tech rally, as usual, into the new year, with stocks and bonds peaking in January. Don't know if that will bear out, I just hedge along. Worst of all right now, I just don't find anything cheap. No value. Even some mutual fund companies warning we've had an outsized performance that cannot be expected to continue.