Portfolio Return At the beginning of the month, you owned $12,000 of Ford Motor, $18,000 of Netflix, and $20,000 of Wayfair. The monthly returns for Ford Motor, Netflix, and Wayfair were 1.50 percent, 1.0 percent, and − 1.50 percent. What is your monthly portfolio return? What is your effective annual portfolio return? To solve, first you must calculate each stock’s weight of the total portfolio. Times that weight for the stock’s contribution to the portfolio return, then sum all three stocks. See P7-1 from Week 3 for the annual return (EAR).
Value of Ford motor in the portfolio = 12000
Value of Netflix in the portfolio = 18000
Value of Wayfair in the portfolio = 20000
The total value of the portfolio = 12000+18000+20000 = 50000
Ford Motor
Weight of Fordmotor in the portfolio = WF = 12000/50000 = 24%
Monthly Return on Ford Motor = rF = 1.5%
Netflix
Weight of netflix in the portfolio = WN = 18000/50000 = 36%
Monthly Return on Netflix = rN = 1%
Wayfair
Weight of Wayfair in the portfolio = WW = 20000/50000 = 40%
Monthly Return on Wayfair = rW = 1%
Weights | Monthly Return | |
Ford Motor | 24% | 1.50% |
Netflix | 36% | 1% |
Wayfair | 40% | -1.50% |
Monthly portfolio return
E[Rmonthly] = WF*rF+WN*rN+WW*rW =(24%*1.5%)+(36%*1%)+(40%*(-1.5%)) = 0.12%
Annual Portfolio return
E[RAnnual] = (1+E[Rmonthly])12-1 = (1+0.12%)12-1 = 1.44954211884061%
Answer
Monthly portfolio return = 0.12%
Annual portfolio return = 1.44954211884061% or 1.45%
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