CAPM Flashcards
What does CAPM State?
That because non systemic risk can be eliminated by diversification, it is not rewarded.
CAPM It is the sensitivity of the security to the market that is the appropriate measure of risk.
What is the return of an asset according to CAPM?
The risk free return plus a risk premium
How do you determine the risk premium?
The level of the securities systemic risk
What should you think of when you think of CAPM?
Beta and largely disproved
What is CAPM formula
Risk free + (Beta x (Expected Return – Risk Free))
Benefits of using CAPM?
Easy to calculate / info widely available
Takes account of systemic risk
Reflects fact that most portfolios are diversified to reduce non systemic risk
Robust / Trusted
Gives an expected return / benchmark
CAPM Limitations
Studies have shown than not all systemic risk can be eliminated through diversification
Beta’s are historic and can be unreliable
Historic returns on US Stock Market to that expected by CAPM and found no relation at all