What is the difference between the Standard and Advanced Editions?
The Standard Edition is our basic model and computes volatility on a calendar basis. This means that all trading information is parceled into January to December annual intervals. The data used in the computation is the full data set imported from Yahoo! Finance and there is no ability to select sub-dates. The Advanced Edition provides the same calendar computation as the Standard Edition but adds the ability to select dates to limit the date range and to annualize the partial period. Additionally, the Advanced Edition uses the user-entered dates to define the year range so that the volatility calculation is not limited to a calendar year. These features are very useful to adjust the volatility computation to use selected dates and annualize the partial year.