This is the monthly chart for QQQ, using log scale.
H&S pattern in the RSI seems to precede market volatility. It happened in 2016 and 2018.
It seems like another head & shoulders pattern could be forming this year.
We're already showing signs of a bearish divergence between monthly price and monthly RSI, so it's possible the RSI makes a lower high to form the right shoulder of a H&S.
Going by history, we should expect a downturn shortly after the H&S pattern is formed. This is not a prediction, I'm just saying what might happen if history repeats.