Attached chart shows: left side is real-time data from IB to NT. right side is reloaded historical data from IB to NT. This got my attention today as I was looking at IB chart of first few minutes. The first minute candle was red, but after refreshing the chart (which probably made IB load historical data) it became green. WOW. I know that IB feed is not raw feed..... but this means that for someone trading on 1 min charts external feed is a must. Is IB historical data unfiltered? Am I right or am I missing something?