S&P lost steam and showed instability (August 11th), lower volumes and quite some swings when approaching ATH (last 9 days)
Comparing with 1929 (by matching March 2020 low with 1929 low), the same pattern is repeating.
Now there is quite a divergence between S&P 500 and CCI (good indicator of past drops when diverging with S&P500) confirming that a first drop is coming. Looking at 1929 it will be a matter of a few days.
Stay tuned!