Hi Augie,
I used a 5-day SMA, but I got the data from Yahoo, and noticed that the data used by Stockcharts was strangely different, off by 2-3% on some days. Furthermore, I did not have UNCH volume, so I was dividing VolAdvance by (VolAdvance+VolDecl).
I showed a 5 year low, but on your chart, you are showing a low spike into the range of previously low spikes, but not the lowest.
BTW, thanks for the "good" data, I will look at that later this evening and come up with some trading scenarios. I.e., What if Joe Sixpack sits around with cash, only coming out to deploy it for a 1 or 2 day long QQQ trade whenever that 5-day Voladvance % dropped below 25??
Warp
Warpfactor