are you just throwing a random vol number out there like 55%? isnt forecasting the vol equivalent to forecasting price action in the underlying and therefore just as difficult?
so is the iv index on cboe the 52week?
Yes, it's difficult, but as the really smart option guys on this site (I'm not one of them) will tell you, you have to have an opinion on volatility and price direction. "Flat" or "I don't know" is OK, just be sure you have an appropriate strategy for that. Or stay out until you have a stronger opinion.
I kind of made that 55% figure up, but you'll see longer term shifts in HV and IV as smaller companies mature and become profitable and more predictable. Volatility shifts can also occur in the titans based on macro-economic factors, recovering from an isolated bad spell, figuring out how to smooth their earnings, etc. Look beyond a six or twelve month chart and you'll see what I mean.
Re the CBOE site, I think you mean the option tool that's provided by Trading Block? I'm not familiar with that company or tool, but I scanned some high IV names and yes, it's an annualized figure, but double check the results elsewhere. Two Colombian stocks on the NYSE caught my eye - EC and CIB. Very large (for that country) and pretty boring. Trading Block shows the 20-day IV annualized at over 100%. It should be about a quarter of that. The HVs looked OK. Just be careful if any foreign names interest you.