This is a recently published indicator by balipour and the Incredible Braintrust at POW. As you can see when you use another Free indicator from Balipour called the Correlation Coefficient and you correlate the HVE (Historical Volatility Estimator) to Price action that it will give you direction of the impending move created by a Volatility expansion. The Volatility model used, which there are several in the inputs was the EWMA. There is a wide variety of functionality within these indicators and they are a staple within my Trading Edge and one more reason why Bali is a mentor of mine and who i admire...