Module 3: Equity Valuation and The Capital Asset Pricing Model Flashcards
What are the two core sets of assumptions of the Capital Asset Pricing Model (CAPM)?
- Individual Behavior
a. Investors are rational, mean-variance optimizers.
b. Their common planning horizon is a single period
c. Investors all use identical input lists, an assumption often termed homogeneous expectations. Homogeneous expectations are consistent with the assumption that all relevant information is publicly available. - Market structure
a. All assets are publicly held and trade on public exchanges.
b. Investors can borrow or lend at a common risk-free rate, and they can take short positions on traded securities.
c. No taxes.
d. No trading costs.
What is the market portfolio under CAPM?
Aggregation of all investors’ risky portfolios, each of which is identical, it too will have those same weights. The value-weighted portfolio of all assets in the
investable universe.
What is the mutual fund theorem?
If all investors would freely choose to hold the market portfolio, they would not object if all stocks
were replaced with shares of a single mutual fund holding that market portfolio.
Why would someone invest in an index fund?
Broad diversification, low costs, solid returns.
What is the market price of risk?
E(Rm)/σ^2
What is the risk to reward ratio for investments in GE?
E(Rge)/Cov(Rge, Rm)
What is meant by beta?
The ratio Cov(Rge , Rm) / σ^2m
Measures the contribution of GE stock to the variance of the market portfolio as a fraction of the total variance of the market portfolio.
What is the expected return–beta relationship?
The total expected rate of return is the sum of the risk-free rate (compensation for “waiting,” i.e., the time value of money) plus a risk premium (compensation for “worrying,” specifically about investment returns)
Makes specific prediction of the size of the risk premium (benchmark risk premium * Beta)
What is the security market line?
Graphs individual asset risk premiums as a function of asset risk. Valid for both efficient portfolios and individual assets.
Offers a benchmark for the evaluation of investment performance. It provides the expected rate of return investors demand as compensation for both beta risk as well as the time value of money
What does the alpha of a stock represent?
Difference between the equilibrium and actually expected rate of return on a stock
A positive alpha implies reward without risk.
What does the CAPM offer for a new project?
Provide the required rate of return that the project needs to yield, based on its beta, to be acceptable to investors.
Can obtain a cutoff internal rate of return (IRR), or “hurdle rate,”
What does the CAPM predict?
The prediction of the CAPM is that for every stock, the equilibrium value of αi is 0.
Why are short sales important?
When prices rise above intrinsic values, rational inves-
tors will take short positions, thus holding down the price
What is a zero-beta portfolio?
a “companion” portfolio on the bottom (inefficient) half of the frontier with which it is uncorrelated
How do risk tolerant investors leverage?
Up their position in the tangency of their portfolio.
What is the Merton ICAMPM expected return-beta equation?
E ( R i ) = β iM E ( R M ) + ∑ β ik E ( R k )
What is the consumption CAPM?
the portfolio with the highest correlation with
consumption growth; βiC is the slope coefficient in the regression of asset i’s excess returns,
Ri , on those of the consumption-tracking portfolio; and, finally, RPC is the risk premium
associated with consumption uncertainty, which is measured by the expected excess return
on the consumption-tracking portfolio
What is meant by liquidity?
Ease and speed an asset can be sold at fair market value.
Can affect prices when reduced and affects others at a systemic level depending on exposure. Modifies stock beta.
What is the intrinsic value of a stock?
True value derived from financial data. (V0)