The McClellan Oscillator (lowest indicator) is @ the Zero Line, failure here (lower NDX100) and a correction is 'underway'.
Negatively divergent RSI and falling MACD (blue columns) adds to the 'excitement' (if you're a bear)!
The catalyst?
The 'good' Dr Copper is suggesting something other than what equities are telling us?
Chinese demand concerns are 'blamed', perhaps we should 'care' as well.
Apple (AAPL) remains well shy of its highs scored on yesterday's Key Reversal.
The NDX100 is close, with the S&P500 indeed rallying to new highs.
'Non-Confirmation' of the NDX/S&P; whilst it holds, and the thesis of 'highs' being potentially in place remains valid.