Assume IBM has the returns of 10%, 15%, 12%, 16%, and 18% over the past five years. The corresponding returns for the S$P 500 are 8%, 12%, 11%, 13%, 14% and that you have 30% of your wealth invested in IBM and 70% invested in the S&P 500. What was your overall return over the past five years?
between 10% and 11% |
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between 11% and 12% |
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between 12% and 13% |
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between 13% and 14% |
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between 14% and 15% |
IBM | S&P | |
1 | 10.00% | 8.00% |
2 | 15.00% | 12.00% |
3 | 12.00% | 11.00% |
4 | 16.00% | 13.00% |
5 | 18.00% | 14.00% |
Average= | 14.20% | 11.60% |
Average or Mean = Sum of all observations/Count of all observations |
Weight of IBM = 0.3 |
Weight of S&P = 0.7 |
Return of Portfolio = Weight of IBM*Return of IBM+Weight of S&P*Return of S&P |
Return of Portfolio = 14.2*0.3+11.6*0.7 |
Return of Portfolio = 12.38 |
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