As we mentioned QQQ in late February (02/27) for breakdown warning, QQQ shows potential reversal with doji for warning signal today. Notice two uptrend channels composed strong 3-month rally. MSFT, AAPL, AMZN, GOOGL, FB took leadership roles. There are still strong but it should be noted when the trend line breaks around 235-240. Lack of support below could result in sharp drop.