"ChaikinVolatility" (Financial Indicator)
Is a market strength indicator.
Was developed by Marc Chaikin.
Is computed using the high and low prices.
Returns one time series, the relative change of a 10-period exponential moving average of the price range from 10 periods ago.
FinancialIndicator["ChaikinVolatility",n1,n2] uses period n1 moving averages and compares with the value n2 periods before. The first value occurs after n2 periods.