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Knowledge Base

Average True Range (ATR)

Overview

Average True Range (ATR) is an indicator that measures volatility. Introduced by Welles Wilder, he found that high Average True Range values often occur following a market sell off or "panic".

Calculation

A True Range is first calculated as the greater of the following:
  • The range of today's high to today's low
  • The range of yesterday's close to today's high.
  • The range of yesterday's close to today's low.
The ATR is the True Range averaged over a number of bars.



To add the tool to your chart, select the tool from the Price tool group, and left-click on the chart to add the tool. Optuma will then draw the tool in a window below the chart using the default settings.

Actions & Properties


Actions


Copy Data to Clipboard: Will copy the tool's values to the clipboard which can then be inserted into a spreadsheet, for example, allowing for further analysis.

Add to Toolbar: Adds the selected tool to your custom toolbar.

Apply Settings to All: When multiple ATR tools have been applied to a chart, page or workbook, this action can be used to apply the settings of the one selected to other instances of the tool. This is a great time saver if an adjustment is made to the tool - such as line colour - as this allows all the other ATR tools in the chart, page or entire workbook to be updated instantly.

Copy Tool: Allows you to copy the selected tool, which can then be pasted onto a different chart window.

Move to Back: If the tool is displaying in front of other tools or indicators clicking this action will move the tool view to the background.

Move to Front: If the tool is displaying behind other tools or indicators on the chart, clicking this action will bring the tool to the forefront.

Restore Default Settings: Click this action if you have adjusted the default settings of the tool, and wish to return to the standard properties originally installed with Optuma.

Save Settings as Default: If you have adjusted any of the tool’s properties (colour, for example) you can save the adjustments as your new default setting. Each time you apply a new ATR to a chart, the tool will display using the new settings.

Delete: Deletes the tool from the chart.

Properties


Tool Name: Allows you to adjust the name of the tool, as it's displayed in the Structure Panel.

Base ATR: The number of time periods used in calculating the Average True Range.

Plot Style: Allows you to change how the tool is displayed on your chart. There are 6 options available: Line, Dot, Histogram, Step, Shaded, Shaded Step.

Multiplier: Multiplies the Price Scale of the Average True Range by the value you specify, e.g. 1, 1.5 or 2.

Line Style: The Line Style property allows you to adjust the type of the line displayed. There are 8 options available: Solid, Dots, Dash, Dash Dots, Long Dash, Long Dash Dot, Long Dash Dot Dot, Stippled.

Line Width: Allows you to adjust the width of the line. Moving the slider bar to the right increases the thickness of the line.

Line Colour: Allows you to select the colour of the line. Clicking on the drop down arrow will display a colour swatch. Locate the desired colour and left-click it once to select it.

Fill Up / Down Barrier: When the Plot Style is set to Shaded you are able to adjust the barrier value, i.e. the margin between the two correlation plots. The default value is 0.00.

Fill Up Colour: When the Plot Style is set to Shaded you are then able to alter the Fill Colour for the tool.

Fill Down Colour: When the Plot Style is set to Shaded you are then able to alter the Fill Colour for the tool.

Transparency: When the Plot Style is changed to Shaded, you then are able to adjust the shading transparency. Moving the slider to the left will increase the transparency of the tool.

Offset: This provides the option to offset the Average True Range from the chart, to adjust the offset value use the blue up and down arrows.

Tool Transparency: Use this slider bar to adjust the transparency of the tool. Moving the slider to the left will increase the transparency of the tool.

Visible: Un-tick this checkbox to hide the tool from the chart.

Show In Price Scale: When selected the current Average True Range value will be displayed in the Price Scale.

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