I have purchased “OptionX” or “Option123, v. 6.0”, how can we manipulate “volatility” calculation?
The historical volatility calculation is presented on the top of stock price worksheet. However, you may not manipulate the volatility calculation there, other than on “Value” worksheet. Usually, volatility can be manipulated by changing the expected life of options. It is a mouse work to compute the volatility for a grant item.