QQQQ...Nasdaq Retracement Levels Hold

Last week I commented that usually markets retrace 50% of a bearish engulfment before heading back down. I said I was waiting for a rally to short QQQQ at 50%.
Well we got the rally and I shorted some at 50% and at .618.. The fibonacci levels held perfectly and I pretty much shorted the highs today in QQQQ. This is one of my favorite trades and works more times than not with amazing accuracy. It's not often I make a dollar profit in QQQQ in just one day. The market fell out of bed in the afternoon but managed to bounce a little going into the close. QQQQ closed below its 50 day moving average on good volume and a large trading range for the day.. I'm going to hold this trade and see how much more downside there is if any.