CML and Market Portfolio Since every investor's relative holdings of the risky security is the same,the only way the asset market can clear is if those optimal relative proportions are the proportions in which they are valued in the market place that proportions are called Market Portfolio THE COURSE OF FINANCE 2017 SPRING SJTUCML and Market Portfolio  Since every investor’s relative holdings of the risky security is the same, the only way the asset market can clear is if those optimal relative proportions are the proportions in which they are valued in the market place ,that proportions are called Market Portfolio THE COURSE OF FINANCE 2017 SPRING SJTU 7