Tuesday, May 5, 2020
Bond Valuation Share JAY and KAY Returns ââ¬Myassignmenthelp.Com
  Questions:    Consider shares in two companies, JAY and KAY, as follows:                Expected Return  E(R)      Standard Deviation  s      Correlation Coefficient  r          Share JAY      12%      18%       0.3          Share KAY      24%      32%          a) Calculate the covariance between Share JAY and KAY returns.  b) What is the expected return and standard deviation of returns on a portfolio comprising 35% in Share JAY and 65% in Share KAY?  c) If you wanted to create a portfolio consisting only of these two shares, how much would you need to invest (weights) in each share so that your portfolio return would be equal to 15.6%? Note: do not round.  d) Using the weights calculated in part c); calculate the variance and standard deviation of your portfolio.      Answers:  (a).    Covariance between Share JAY and KAY returns: - To calculate the Covariance between Share JAY and KAY returns following formula is used:-  = Standard Deviation of JAY * Standard Deviation of KAY *(Correlation Coefficient)  = 18 *32 *(0.3)  = 172.6  Hence, Covariance between Share JAY and KAY returns is 172.6  (b).  (i) Expected Return: - Expected return means that the return the investor can expect in the future. It is not the accurate return but only expected return.  Expected Return = Weight of JAY *(Expected Return) + Weight of KAY * (Expected Return)  Expected Return = 0.35*(12) + 0.65 * (24)  Expected Return = 19.8%  Hence, the Expected Return is 19.8%  (ii) Standard Deviation  (WA2a2 )+ (WB2B2 )+2 (A*WA*b *WB)* Correlation Coefficient  (0.35*0.35*18*18)+(0.65*0.65*32*32)+2(18* 0.35*32*0.65*-0.3)  39.69+32.64 -78.624  393.706   = 19.84  (c).  If a portfolio is to create consisting only of these two shares, and to make the portfolio return equal to 15.6% then the investment is to be made of :-  Let assume the weight of JAY is W, then the Weight of KAY WILL BE 1-W  Desired Portfolio Return = 15.6%  15.6% = W*12%+ (1-W)* 24%  0.156 = 0.12W +0.24- 0.14 W  0.156 -0.24 =-0.12W  0.084 = 0.12W  0.084 / 0.12 = W  0.7 =W  Expected weight which is earned is 15.6%  Then weight of JAY (W) will be 70%  Weight of KAY (1-W) will be 30%.  (d).  (i) Basis on the above calculation revised Standard Deviation is:-                New Weight      Standard Deviation          JAY      70%      18          KAY      30%      32           =  (0.70 * 0.70 *18 *18) + (0.30 * 0.30 * 32 * 32) + 2 (0.70 *18*0.30 *32 *- 0.3)   = 158.76 + 92.16 -36.288  = 214.632   = 14.65    (ii) Variance is the square of standard deviation  Variance = () 2  = (14.65) 2  Variance = 214.62.    
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