For my thesis, I'm trying to annualize conditional volatility of past stock returns since it is the dependent variable in my research.
As an example, I ran in eViews the daily stock returns of a firm and calculated the volatility using GARCH (1,1) (as you can see in the attached picture).
My question is: Do I need to annualize the GARCH(-1) 0.738970 by multiplying it with sqrt(252)?