User talk:27.202.3.12

Dear recipient,

Sorry for bothering you,but there is a question currently makes desperate.I'm wondering if you can help me and answer it. The question is as follow. Since we can use SML(security market line) to measure systematic risk and we know exactly the total risk of the portfolio, then how can we measure the unsystematic risk quantitatively? Is there any model can be used to measure it? If you know any information relevant to it,please inform me.

Best wishes and highly appreciate for your time.