This indicator shows the current day’s volume bars compared to the same bars over a user-defined period (eg Last Month, or the visible data on the screen). Here’s an example of a 30-minute chart of Microsoft. The shaded area below the current day is the average volume over the past two weeks. The orange bar indicates where the volume is above the average for that 30 minute period.
This is a companion discussion topic for the original entry at https://www.optuma.com/kb/optuma/tools/volume/average-volume-by-time