Why is there a mismatch between the historical data I download now w.r.t. the same data downloade...

...d two years ago?

Hi, a couple of years ago I downloaded through the Eikon Python API daily close/open prices for a list of stocks and ETFs for the period 1998-2018. Now I tried to re-download the same data, and I see significant differences in prices. Why does it happen, and which of the two datasets should I trust? Is it possible to know when, why and how often Eikon updates its data?

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Accepted answers

chavalit-jintamalit

It may due to the inclusive of adjusted value when there is a merge or split on specific stock.

You can contact Refinitiv Content Helpdesk at https://my.refinitiv.com/ to clarify on the RIC you found these changes.

All comments

chavalit-jintamalit

It may due to the inclusive of adjusted value when there is a merge or split on specific stock.

You can contact Refinitiv Content Helpdesk at https://my.refinitiv.com/ to clarify on the RIC you found these changes.

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