For 1.5 wonderful months (I was told they installed better hardware in October...) I have had no more problems with IB's backfill... this week the problems started again. I receive weird data when backfilling and get holes (because of volume spikes) in my charts (as before October...). Anybody else experiencing this lately?
IB is a BROKER - they are not a data supplier - If you want consistently good data buy it and quite complaining your broker does not supply good past data. And yes I do use IB's data to trade with and chart. I, taking responsibility for my own self, accept their limitations and live with it.