the data-provider here is IB. I verify if the data in the TWS (orderpage) is the same as the data taken by NT from IB.
For the ticker RIG (and maybe some others) this is not the case. So what can i trust ? And yes i develop a custom indicator you can test if needed.
Here are the answers from IB:
I double checked this with ActiveX.xls API and I can see the correct close price shown in the excel spreadsheet. What third party program do you use to download the data?
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