Anil-
I wish I could help you, but I can't. I run my portfolio through their analysis every couple years. I am afraid that I don't get much out of it. It usually just confirms what I already know about my portfolio. I don't know, but I think that they have a paid service... and maybe that gives you more info.
It is a statistical analysis. It is easy to say that you should risk adjust the returns in your portfolio, but it is another thing to actually be able to do it... especially if you can't agree on what risk really is. I still have a problem with a short term volatility definition of risk.
erryl