Price and volume can be in sync or out of syncQuote from Padawan:
Thanks for taking the time to put those together, Mr. Black. Very, very helpful. I can better see the "price volatility is proportional to volume" part of the equation.
I still have some difficulty determining direction. Based on your example, it appears change occurs where price volatility is proportional to volume and where price volatility is non-proportional to volume. Is this observation correct?

) certain rules: price traverses the channel on increasing dominant volume, and retraces the channel on a decreasing non-dominant volume.