Image Uploaded on 2007-11-15 by SC Developer
In this screenshot you can see the Volume by Price study for the mini S&P December futures. An option to show the actual Volume numbers is On. It represents the trading volume at each one point increment for the day. With this information you can clearly see the price level where the most of the trading activity is taking place. The subregion below the main chart shows the volume traded at the ask as green bars and the volume traded at the bid as red bars. The difference between those is also shown as a yellow line. With this information you can see whether there is more volume on the downside (bid) or the upside (ask).