The $QQV Factor

Old Crow brought the $QQV (NAZ100 volume index) to my attention yesterday. Actually, what he said was "What do you think of the $QQV?" and, frankly, I've never monitored it before. But, after a cursory look at the QQVs fractal behavior relative to the VIX, it does inspire some genuine curiosity.
Above and below are 10 minute Qs charts with QQV and VIX overlays.
Is anyone a bit surprised to see the correlation?

And, just to confirm a longer range correlation of the QQV and VIX, the lower 2 Qs charts are based on daily bars. There's really only a single divergence in these 2 charts as reflected in December, when Qs volume rose, but VIX declined. What happened there?
So, despite the complex formula of SPX put and call reconciliation involved in calculating the VIX, is it, in fact, just a reflection of volume? It certainly has an uncanny relationship to the QQV and that must be considered a major factor when evaluating the utility of the VIX as a trading tool for the Qs.
Of course, the VIX is a measure of the volatility of the SPX not the Qs. For that we have the $VXN, which looks a little bit different and I'll be probing some of those implications later this week.