In: Finance
Use the following information to answer the next two questions:
Stock Amount Beta
A 25,000 0.2
B 20,000 1.0
C 30,000 1.8
D 25,000 1.6
Risk-free rate is 3% and the market risk premium is 8%
Given about a portfolio
Investment in stock A = $25000
Beta of stock A, Ba = 0.2
Investment in stock B = $20000
Beta of stock B, Bb = 1.0
Investment in stock C = $30000
Beta of stock C, Bc = 1.8
Investment in stock D = $25000
Beta of stock D, Bd = 1.6
So, weight of stock A, Wa = investment in A/(investment in A+B+C+D) = 25000/(25000+20000+30000+25000) = 25% or 0.25
Similarly weight of stock B, Wb = investment in B/(investment in A+B+C+D) = 20000/(25000+20000+30000+25000) = 20% or 0.20
Similarly weight of stock C, Wc = investment in C/(investment in A+B+C+D) = 30000/(25000+20000+30000+25000) = 30% or 0.30
Similarly weight of stock D, Wd = investment in D/(investment in A+B+C+D) = 25000/(25000+20000+30000+25000) = 25% or 0.25
So, beta of portfolio is weighted average beta of its assets
=> Beta of portfolio = Wa*Ba + Wb*Ba + Wc*Bc + Wd*Bd = 0.25*0.2+0.2*1+0.3*1.8+0.25*1.6 = 1.19
required return on portfolio is calculated using CAPM
Required return on portfolio = Rf + beta*MRP
Rf = 3%
MRP = 8%
Required return on portfolio = 3 + 1.19*8 = 12.52%