Last time the DOW 5 day RSI dropped so fast to this level was in March, it had 2 more strong down days, and bounced only after that. But even then the bounce didn't take it to the close of the day on which RSI has dropped to 17s.
And that bounce ended up making only a narrow consolidation pattern. Which broke down in a few days.
Doesn't mean much. Just an observation.
But ALL summations turning negative for the first time in this rally is very negative, IMO. NDX summation was the first to turn a few days ago, but today NYSE and Naz summations caught up.