This is because IB feed was NOT developed as tick-by-tick and in no way meant to make time&gross sales collection, but rather solely to update TWS Show grid. Trading Wants: Working day traders require data within the shortest attainable time though swing traders might call for data for backtesting. https://amibroker-data-feed65319.mybloglicious.com/50045338/amibroker-data-feed-can-be-fun-for-anyone