...stock price of companies?
I went through the equity segment. I was looking for volatility time series of few companies. then I find it in the price and chart section. There are many volatility measures, like Volatility O-H-L-C, Historical Volatility, Volatility (Chaikin's) etc.
I am going to use the data in my study, for that purpose, I need the methodology behind the calculation of these types of volatility measures. I found the formulas but need to be sure that refinitive follows that same.
Please help me to get the methodology used by refinitive for calculating "Volatility O-H-L-C", especially.