How can I see data outside of regular hours in a chart in IBKR Mobile?

In order to view data on a chart outside of regular trading hours, you must check the requisite option in Chart Parameters. In the chart, click the Edit menu option followed by Chart Parameters. In the "Chart Time Options" section, click the box that says "Show data outside of regular trading hours" and click Apply followed by OK…

Extended Trading Hours (4:00 – 20:00 ET)

To view data outside of regular trading hours on an advanced chart:…

To view Volume on a chart, click on the View menu item followed by Volume Subchart. The Volume will now populate at the bottom of your chart.

Note…

There is no setting within the Market Depth Trader tool or buttons which will allow you to trade outside of regular trading hours. However, what you can do is enable your orders to be activated, triggered, or filled outside of regular trading hours from the Order Presets. By doing this, your orders will automatically populate with "fill outside RTH" enabled when you submit the order from Market Depth Trader. Alternatively, you can edit each order individually once it is placed and enable the order to fill outside RTH…