Sorry if this is off-topic, but I don't really know where else to ask this.
What do people use for continuous charts? I mean, I'm trading off the futures contracts, but my futures chart with expiration June looks different than
the March contract (which expired last week). I'm using IB as a datafeed and the problem is the same in their charts as in Sierra Charts or any other application that I've tried.
For example, if I plot the NQH8 (March) and the NQM8 (June) there's a noticeable difference: in the first chart, the low of January (at 1700) is only broken marginally in March (1675). In the June contact price is the same in March (1675) but the January low is at 1725
.
I know there's an offset in prices with a different expiration date in the future, but the offset should be the same in terms of absolute points. It can't be bigger at one point. So the difference should be 25 points, instead it's 50. This gives a totally different picture...