Historical volatility is an indicator that shows price volatility. The instrument graphically represents dynamics of a price change expressed as a percentage. The ratio is derived by using a closing price of the previous trading period. The higher the ratio, the higher was volatility of a trading instrument.

How to use

In the "Chart value range" field, type in your required range. "Chart value range" means a time period for which data is going to be processed.
In the "Period" field, type in your required timeframe.
For example, for the Chart value range that equals 14, the chart will show the history of a price change of the instrument for the last 14 weeks. For the Period with a (the) value of D1, the chart will show data where each step is equal to one day.