I just encountered a very unpleasant thing. I backtested a strategy with the same parameters as 2 weeks ago and ended up with different results. I started to investigate and found out, that the quotes (open,high,low,close) are wrong! I double checked in the chart and in the historical data manager. And indeed: The quotes in the historical data manger are *correct*, but the quotes taken in the chart or strategy analyzer are "moved" by 1 day! How can this be?
Please find enclosed a screenshot. As you can see I have these values for the DAX on 30.06.2010:
Historical Data Manager: Open:6882.94 / Close: 6882.44 --> as on yahoo website
Chart: Open: 7055.42 / Close: 6881.94
As you can see, these values are the quotes from 29.6.2010!
Looking at that, I worry now where else the data was/is wrong and I come to wrong conclusions.
Note: I discovered this in NT 6.5. I decided then to move to NT 7.0 and installed it. The screenshots are from 7.0 taken
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