In: Finance
Consider two well-diversified portfolios, A and C,
rf = 4%, E(rA) = 10%, E(rC) = 6%, bA = 1, bC = ½
If the maximum amount you can borrow is $1,000,000, what is your arbitrage strategy and profit?
A. Long 1 A , short 0.5 C , short 0.5 rf, profit=$5,000
B. Long 1C , short 0.5 A, short 0.5 rf, profit=$5,000
C. Long 0.5 C, Long 0.5 rf, short 1 A, profit=$10,000
D. Long 0.5 A, Long 0.5 rf, short 1 C, profit=$10,000
We will short Portfolio C and receive +$
1,000,000.
For every 1 unit of Portfolio C we will BUY only 0.5
units of portfolio A.
As we have to match the Beta of the two portfolios ( the beta of A
is 1 and beta of C is 0.5 therefore to replicate the beta of short
C i.e. -0.5Beta we’ll only BUY 0.5 units of A that will be
0.5UnitsA*1BetaA = +0.5Beta).
Though we’ll Long A, invest $1,000,000*0.5 = ($500,000) and now will invest remaining ($500,000) at 4% in rf asset which has Beta=0.