bugging u again.

here ane my doubts:

1.

**since all investors want to hold the same risky portfolio,risky portfolio m must be market portfolio.**.am unable to comprehend this line in core readings.why will investors want to hold same risky portfolio?

2.why variance of return of market portfolio is the return covariance of market portfolio with itself.

3.also in difference between CML and SML.we just pt the value of SD of portfolio in CML in covariance terms with market,it becomes CML.But for a portfolio unsystematic risk will already be removed.

Anil