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Originally Posted by adityam12345 Cn sm1 plz explain beta, itz contruction and itz application .....
....... thanks in advance |
Beta represents the slope of regression and measures the responsiveness of the security to general market movements. It indicates how extensively the return of the portfolio/security will vary wrt changes in market rate of return.
Theoretically, if the beta is 1.2 and the index gives return of 10%, then the security/portfolio will give 10*1.2 = 12% return.
Value of beta can be arrived in many ways depending on the data you have. I have mentioned couple of frequently used ways to arrive at the beta value:
1. The value of beta can be arrived through CRL or CAPM model
2. The value of beta can arrived at COVARIANCE/VARIANCE (covar/var)
I usually use covar/var of the returns to calculate the value of beta.