Question

Assume that the economy has three types of people. 20% are fad followers, 75% are passive...

Assume that the economy has three types of people. 20% are fad followers, 75% are passive investors, and 5% are informed traders. The portfolio consisting of all informed traders has a beta of 1.4 and an alpha of 4.49%. The market has an expected return of 10% and the risk-free rate is 4 %. What is the alpha for the fad followers? Enter your answer as a percentage to two decimal places (i.e. 0.12% rather than 0.0012; the percent sign is not necessary).

Homework Answers

Answer #1

E(R) = Expected Return
Market return = (Rm) 10%
Beta = 1.4
Rf = Risk free rate = 4%
alpha = 4.49%
Using CAPM model Rp = Rf + Beta * (Rp - Rf ) = 4% + 1.4 * ( 10% - 4%) = 12.4%
Return for Informed traders = Rif= alpha + Rf + Beta * (Rm- Rf) = 4.49% + 4% + 1.4 * ( 10% - 4%) = 16.89%
(Return on portfolio ) Rp is combination of Return of fad followers and Return of informed followers
Fad followers weights = Wff = (20/25) = 0.8
Informed followers weights =Wif = (05/25) = 0.2
Rp = Wff *Rff + Wif * Rif
12.4% = 0.8 * Rff + 0.2 * 16.89%
Rff = 11.28%
Alpha ff = Rff - Rf - Beta * ( Rm - Rf) = 11.28% - 4% - 1.4 *( 10% - 4%) = -1.12%
Answer Alpha of fad followers = -1.12

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