QQQ is following the Russell 2000 lower with a Bearish Engulfing candlestick. Looking at the broader Nasdaq, we don’t quite have a Bearish Engulfing pattern like QQQ but the real test will be the 200 day moving average support.

Nasdaq with Parabolic SAR sell signal falling back to 200 day moving average
Nasdaq falling back to test 200 day moving average support.

A Parabolic SAR sell signal triggered today and the MACD has recently gone negative.