QQQ failed to hold previous 20 day highs (170.82) after making new 20 day highs. This sets up a Turtle Soup Sell (Linda Rashke), a short term reversal. The weaker the trend, the stronger reversal (time a/o price). QQQ ADX on the daily ≅ 10.4, essentially trendless. This setup is invalid > 170.82 - 20 day highs/low are key levels and price often trades through multiple times - set stops appropriately.