QQQ Reaches Our Optimal Target Window

QQQ-- From the perspective of the NDX-100 derivative ETF QQQ, it too has climbed to a new ATH at 499.84 this AM, which places it within my optimal next Target Window at 498.20 to 501.50, from where my pattern work indicates the likelihood of a correction is extremely high. 

Bottom Line:  As long as QQQ is trading below 501.50, my pattern work considers the probability of a correction elevated. However, to trigger an initial downside reversal signal, QQQ needs to decline beneath 495.50... 

In the absence of a decline beneath 495.50, I cannot rule out a climb above 501.50 toward my next projected Target Window of 508 to 511... Last is 499.10...