Question: You have 2 asset classes: bond and stock, and 3 mutual funds: fund X, fund Y, and fund Z. The return on a mutual fund

You have 2 asset classes: bond and stock, and 3 mutual funds: fund X, fund Y, and fund Z. The return on a mutual fund is modeled by,

( R_{t}=alpha+b_{1} R_{text {bond }, t}+b_{2} R_{text {stock }, t}+varepsilon_{t} )

The benchmark assigned by your client to you is: 50% in bond and 50% in stock.

You are given the following data:

The variance-covariance Matrix for bond and stock

 

Bond

Stock

Bond

0.0500

0.0001

Stock

0.0001

0.0300

The expected returns of bond and stock

 

Expected return

Bond

4.00%

Stock

10.00%

The sensitivities (or loadings) of the funds to bond and stock

 

Bond

Stock

Fund X

0.5

0.5

Fund Y

0.8

0.2

Fund Z

0.3

0.7

The alphas of the funds

 

Alphas

Tracking Error

Fund X

0.5%

1%

Fund Y

2.0%

3.0%

Fund Z

3.0%

5.0%

Suppose that you have a fund of funds portfolio which invests in 50% in fund X, 30% in fund Y, and 20% in fund Z.

 

Required

a. Compute 2 components in the expected excess return of the fund of funds portfolio. 

b. Compute 2 components in the variance of the excess return of the fund of funds portfolio. 

c. How are the components in (a) and (b) related in terms of risk-return trade off? Explain.

R = a + bRbond, + bR stock! + E

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