I believe that in my daily YM continuous contract chart (IQFeed + Sierracharts) there is a gap of 100 points approx. to the downside from 9/12 (September contract rollover day) back guards (note the 7/17 high and 8/16 low). I have attached the image so you can see by yourself what I am trying to explain. I have talked to IQFeed support and they say that their data are correct. Anyway, I would appreciate if you could post the chart you get with your own datafeed to check if mine is correct. Thank you very much in advance. Best regards.