The short answer is I have no proof that it has. Rather, all I have seen is that the charts have risen to their upper resistance levels today.
Remember, we are ideally expecting a big c-wave higher towards the highs of 2015 once this (b) wave bottoms. And, we know that c-waves are impulsive 5 wave structures. That is why I have noted time and again that I want to see a full 5 waves completed off the lows to consider an aggressive long trade in this market, especially when we are looking for a set up to lower lows. I will need a solid pattern in place to counter-trend trade these charts.
For now, we do not have a solid 5 waves up off the lows. So, I am going to wait for a clear 5 waves up before I am willing to start buying 3 wave pullbacks. For now, there is nothing in place that has me clearly accepting that this (b) wave has yet completed. And, I know I am being cautious, but one needs to be cautious if you want to aggressively trade in counter-trend directions.