Standard deviation ratio – indicator MetaTrader 5
Theory: The Standard Deviation Ratio (SDR) was first presented as a technical indicator in the March 1992 edition of Technical Analysis of Stocks & Commodities magazine ‘Adapting Moving Averages To Market Volatility‘. The author Tushar S. Chande, Ph.D. used it as the Volatility Index in the original version of his Volatility Index Dynamic Average (VIDYA)