Stock A | |||||
Scenario | Probability | Return% | =rate of return% * probability | Actual return -expected return(A)% | (A)^2* probability |
Recession | 0.116 | -10.3 | -1.1948 | -20.16945 | 0.004718958 |
Normal | 0.669 | 9.6 | 6.4224 | -0.26945 | 4.85716E-06 |
Boom | 0.215 | 21.59 | 4.64185 | 11.72055 | 0.002953483 |
Expected return %= | sum of weighted return = | 9.87 | Sum=Variance Stock A= | 0.00768 | |
Standard deviation of Stock A% | =(Variance)^(1/2) | 8.76 | |||
Stock B | |||||
Scenario | Probability | Return% | =rate of return% * probability | Actual return -expected return(A)% | (B)^2* probability |
Recession | 0.116 | -3.7 | -0.4292 | -15.84495 | 0.002912324 |
Normal | 0.669 | 10.7 | 7.1583 | -1.44495 | 0.000139679 |
Boom | 0.215 | 25.19 | 5.41585 | 13.04505 | 0.003658727 |
Expected return %= | sum of weighted return = | 12.14 | Sum=Variance Stock B= | 0.00671 | |
Standard deviation of Stock B% | =(Variance)^(1/2) | 8.19 | |||
Stock C | |||||
Scenario | Probability | Return% | =rate of return% * probability | Actual return -expected return(A)% | (C)^2* probability |
Recession | 0.116 | -12.7 | -1.4732 | -29.09305 | 0.009818304 |
Normal | 0.669 | 17.1 | 11.4399 | 0.70695 | 3.34352E-05 |
Boom | 0.215 | 29.89 | 6.42635 | 13.49695 | 0.003916605 |
Expected return %= | sum of weighted return = | 16.39 | Sum=Variance Stock C= | 0.01377 | |
Standard deviation of Stock C% | =(Variance)^(1/2) | 11.73 | |||
Covariance Stock A Stock B: | |||||
Scenario | Probability | Actual return% -expected return% for A(A) | Actual return% -expected return% For B(B) | (A)*(B)*probability | |
Recession | 0.116 | -20.1695 | -15.84495 | 0.003707174 | |
Normal | 0.669 | -0.26945 | -1.44495 | 2.6047E-05 | |
Boom | 0.215 | 11.72 | 13.04505 | 0.003287246 | |
Covariance=sum= | 0.007020466 | ||||
Correlation A&B= | Covariance/(std devA*std devB)= | 0.978085655 | |||
Covariance Stock A Stock C: | |||||
Scenario | Probability | Actual return% -expected return% for A(A) | Actual return% -expected return% for C(C) | (A)*(C)*probability | |
Recession | 0.116 | -20.16945 | -29.09305 | 0.006806773 | |
Normal | 0.669 | -0.26945 | 0.70695 | -1.27436E-05 | |
Boom | 0.215 | 1172.06% | 13.49695 | 0.003401121 | |
Covariance=sum= | 0.010195151 | ||||
Correlation A&C= | Covariance/(std devA*std devC)= | 0.991627599 | |||
Covariance Stock B Stock C: | |||||
Scenario | Probability | Actual return% -expected return% For B(B) | Actual return% -expected return% for C(C) | (B)*(C)*probability | |
Recession | 0.116 | -15.84495 | -29.09305 | 0.005347344 | |
Normal | 0.669 | -1.44495 | 0.70695 | -6.83388E-05 | |
Boom | 0.215 | 13.04505 | 13.49695 | 0.00378547 | |
Covariance=sum= | 0.009064475 | ||||
Correlation B&C= | Covariance/(std devB*std devC)= | 0.94301137 | |||
Expected return%= | Wt Stock A*Return Stock A+Wt Stock B*Return Stock B+Wt Stock C*Return Stock C | ||||
Expected return%= | 0.26*9.87+0.49*12.14+0.25*16.39 | ||||
Expected return%= | 12.62 | ||||
Variance | =w2A*σ2(RA) + w2B*σ2(RB) + w2C*σ2(RC)+ 2*(wA)*(wB)*Cor(RA, RB)*σ(RA)*σ(RB) + 2*(wA)*(wC)*Cor(RA, RC)*σ(RA)*σ(RC) + 2*(wC)*(wB)*Cor(RC, RB)*σ(RC)*σ(RB) | ||||
Variance | =0.26^2*0.08762^2+0.49^2*0.08192^2+0.25^2*0.11734^2+2*(0.26*0.49*0.08762*0.08192*0.97809+0.49*0.25*0.08192*0.11734*0.94301+0.26*0.25*0.99163*0.08762*0.11734) | ||||
Variance | 0.008326 |
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