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Beta Calculation (ß)
 

The beta (ß) of a supply is a numeral relating the relation of its income with that of the financial market as a sum total.

An asset with (ß) = 0 means that its worth is not at all allied with the market.

  • +ve beta (ß) indicates, the asset generally follows the market.
  • -ve beta (ß) indicates, the asset inversely follows the market. The market is going up then it indicates that asset value generally decreases and vice versa.
Key parameter is Beta (ß) in CAPM , It measures the part of the asset's statistical variance that cannot be mitigated by the diversification provided by the portfolio of many risky assets, because it is interconnected with the return of the other assets that are in the portfolio. Beta can be expected for individual companies by means of regression investigation against a stock market index.

SCL : r(a,t) = aa + ßa r(m,t) + e(a,t)

aa is called the asset's alpha and
ßa is called the asset's beta coefficient.

Beta Calculation simple Example

 

 

  Beta calculation for the portfolio Smart Solution
  Using only two weeks' returns
  1 2 3 4 5 6 7
  J.M % J.M Diff from Mean S&P % S&P Diff from Mean Product
              ( 3 X 6)
  100000     100000      
  100055 0.00055000 -0.00797546 100360 0.00360000 -0.01018187 -0.01018187
  101706 0.01650092 0.00797546 102765 0.02396373 0.01018187 0.00008121
Avg   0.00852546     0.01378186   0.0000812
Variance   6.3608E-05     0.00010367    
Beta (ß)   0.78330071          
               
               
 
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