Not exactly. Naz did run 200 points, but the S&P and especcialy the DOW where consolidating in this range around 10,500 and 1200 for quite a few days already. And today looked like they will finaly breaking out of that range to the upside.
And the selling was lead by the leaders.
Psychologicaly it was a great moment for a break out.
The longer stocks stay in this range, unable to move up, while interest rates are moving down the better for the bears.