It looks like this retracement should bring us down to about 150 ish. This would be healthy buy zone, then back up we should go...at least several dollars above the last high wick (maybe more). But a drop into the red zone (with the confirmation of a closed candle) would signal the likelihood of a complete reversal and would nullify what I just said.
This is not advice, it is just me speculating based on my own TA :)
Good luck!