\The TPO Volume Indicator is a useful and popular free Forex indicator for the MT4 trading platform. It provides a visual representation of the volume of transactions that occur during a given time period. The TPO Volume Indicator plots the volume of transactions on a chart, and also displays the average volume for the same period. The TPO Volume Indicator is a great tool for traders to use to identify when to enter or exit a trade, and it can be used to help them identify potential opportunities.