I am long a few shares of AMD at the moment and was curious about a volatility measurement. Does it make more sense to use VWAP or the close price when calculating daily volatility for a stock?
You can get that data from some websites like http://www.ivolatility.com/ and our LVX software has it right on the platfrom. https://www.lightspeed.com/livevol-x-tutorials/ I don't think VWAP provides that information.
Close price, to conform to industry conventions. But there are several, more granular, measures of realized vol.