The POC session line indicator displays the Point of Control (POC) from previous trading sessions on a volume profile chart. The POC represents the price level where the highest volume of trades occurred during a specified period. This level is significant as it often acts as a support or resistance zone, reflecting where major market participants were most active and where price consensus was reached. Traders use this indicator to identify key price zones, assess market sentiment, and anticipate potential price movements or reversals. It supports analysis across markets such as Forex and Indices.