This indicator shows the daily expected trading range of the instrument.
An upper and lower line denotes the range. It is calulated based on the volatility index selected (NSE:India VIX is used by default). Also it shows developing upper and lower line for the next trading day.
Non-directional option strategies (like straddle, strangle) can be performed based on the expected trading range.
Release Notes
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A center line is plotted at middle of the upper and lower range.