What's the implied Volatility?

Implied Volatility: What tools are out there which allow one to analyse European or Asian single stock optionsl like LiveVolPro?

• LiveVolPro allows one to analyse a stock's implied vs. historical volatility.  Any similar tools out there for outside US?

• Answer:

  You may want to try http://zoonova.com. It gives the user the opportunity to use the Option calculator with a choice of 5 different option models, or use the Option Portfolio with the same choice of 5 different option pricing models. In the Option Portfolio module you can create unlimited strategies and portfolios. Both modules have a delayed Option market data feed for Option prices and stock prices. The web application is Free for the user, and will run on any device. Here is a screen image of what the Option Calculator looks like. As you can see, it is doing the calculations for Fair Value, Historical Vol, and Implied Vol. Here is a screen image of the Option help. Image of the Option Models Help.