NQ opened with a huge gap-down on Thursday but because of the strong overall market bullishness, it has to bounce back up to test broken support which turned into resistance, 12,665.
When NQ failed to break and stay above 12,665 seller came in to sell and sold aggressively in the afternoon, dropping NQ back down to just above support, 12,450 area
On Friday key support will be at 12,450, bullish above it bearis below it with the next lower support at 12,200-12,300.