Market depth in Spark

March 7, 2008

One of the unique features in Spark is the way it presents market depth as a chart.

Spark’s depth charts visualises the outstanding order book for a stock by graphically depicting each buy and sell order.

Green bars represent the buyers and red bars, the sellers. The height of each bar indicates the aggregate volume of all the orders at a specific price level.

Market Depth

click image to watch video demonstration

As orders flow in and out of the order book and trading occurs the bars grow and contract. The chart animates these changes which over time, and with experience, can help you identify patterns in trading activity and potential trading opportunities.

Beyond displaying the current market depth, Spark also allows you to replay previous trading activity. You can access the last 30 days trading history and have the depth replayed to you at varying speeds.

This replay feature enables you to quickly establish a stock’s recent trading behaviour without having to constantly watch it in realtime. It can help to identify momentum shifts, support/resistance levels and the presence of algorithmic trading.

To see Spark’s market depth charts in action watch this short video presentation.


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