DataStream CAPM Beta calculation

[Michi]

Hi everyone,

as a new member of this forum I want to ask a question about datastream:

I want to estimate Beta over a long period of time. Which Datatype do you recommend when extracting the data:

price adjusted or total return index

I am not sure due to the total return index being so much higher in value which is the correct one

thanks a lot folks

best
Michi