I have shown my unmanipulated advance-decline data numerous times on here.  It is a simple but accurate predictor of pricing action.  It has never been wrong regarding future pricing action.  I am well aware the day could come when it fails but I tend to be dubious given the method through which it is constructed.  That said,  nothing is perfect. I don't believe I have ever shown a weekly view of the data. So, let's take a look. The rally post the 2008-2009 collapse has had five distinct upward waves as noted on the graphic below. (The S&P is also included in the graphic for perspective.) Except for the first wave, which was skewed substantially by buying to cover short positions, each of the next four waves of the data were just about identical in height. In other words, from trough to peak, they all rose essentially the same amount.  The fifth wave is just now completing but may have just a little further to the upside if this pulse remain...