Capital Asset Pricing Model - CAPM
Capital Asset Pricing Model - CAPM
Capital Asset Pricing Model - CAPM
John Marron
RISK
Total Risk = Systematic + Unsystematic Risk
Systematic Risk is also called Nondiversifiable Risk or Market Risk Unsystematic Risk is also called Diversifiable Risk or Unique Risk
Diversification
Can eliminate some risk Unsystematic risk tends to disappear in a large portfolio Systematic risk never disappears
Beta
Beta = How much systematic risk a particular asset has relative to an average asset For example:
XOM: 0.65 VIAB: 1.22 YHOO: 3.56 MII Portfolio: 1.54
Er = Rf + B{E(Rm)-Rf}
Works for both individual assets and portfolios