The information received from different data feed may differ. When obtaining data for one and the same symbol in the same period of time, the information is different: values of volume vary, also High and Low, not much, but differ, too.
Tradecision Support Team
Yes, Tradecision supports fully integrated trading with IB.
Please keep in mind: IB market data can differ from eSignal and DTN IQFeed. So run some test to see their quotes for the symbols you plan to trade.
How does IB data differ from those feed?