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Hi TM1
This forum is dedicated to the software developers using Eikon Data APIs. The moderators on this forum do not have the deep expertise in every type of content available through Eikon that is required to answer content search and explanation questions such as this one. The best resource for these types of questions is Refinitiv Helpdesk, which you can reach by either calling the Helpdesk number in your country or by using Contact Us capability in your Eikon application.
Assuming that there are fields carrying the information(and also support historical data) you are looking for.
You can follow this sample code to retrieve the information:
Note that I am using TR.HIGHPRICE as example. It is not just for pre-market but for the whole trading day.
My understanding is that you cannot pull pre-market equity prices for the period in question … 6 months to 6 years in Eikon. This type of historical request for pre-market prices requires Refinitiv Tick History. Closing this question.