The Speedtrader is based on the Reflector™ screen as used by professional traders in Chicago. Orders can be entered and cancelled in a single click.

The Speedtrader condences all market acitivty in a single screen. The top part (red-green) shows the volumes in the orderbook in an horizontal manner. You can see if the market weight is on the sell side or the buy side.

The volume histograms can be shown in the Speedtrader and in the chart. They can indicate support and resistance levels.

This chart includes a histogram of the effectively traded volume. Traders assume that market prices tend to move towards price points which previously saw heavy trading volume. This chart can help you to determine support and resistance levels.