TrueData Velocity features six diverse pricing strategies along with the pricing is dependent upon quite a few symbols, exchanges, and so forth. It's because IB feed wasn't made as tick-by-tick and hardly ever meant to create time&revenue series, but instead solely to update TWS Show grid. Also, slightly delayed https://amibroker-data08529.dailyhitblog.com/34417780/data-feed-for-amibroker-can-be-fun-for-anyone