I'm comparing IB (TWS) to QCharts: The quotes don't even match...for example, IB shows the best ask at 15.82 (28) while QCharts shows the best ask 15.83 (1)....
Is IB showing me something that isn't on Level II or is QCharts total crap?
Is IB showing me something that isn't on Level II or is QCharts total crap?