The Average True Range (ATR) Formula
The formula to calculate ATR for an investment with a previous ATR calculation is : \begin{aligned}&\frac{ \text{Previous ATR} ( n – 1 ) + \text{TR} }{ n } \\&\textbf{where:} \\&n = \text{Number of periods} \\&\text{TR} = \text{True range} \\\end{aligned}nPrevious ATR(n−1)+TRwhere:n=Number of periodsTR=True range If there is not a previous ATR calculated, you must use: \begin{aligned}&\Big ( \frac{ 1 }{…