CA
1788 Points
Joined December 2009
Systematic risk is the risk associated with aggregate market and it is due to factors that affect the entire market. Some of the factor is: recession, Wars, Change is Taxation provision, foreign investment policy, Inflation etc.
This risk is beyond the control of investor and hence cannot be mitigated through diversification.
We can say that the risk of failing CA Student due to the reduced “%” result by ICAI is Systematic risk for CA Student and it cannot be reduced by students own effort.
Unsystematic risk is the risk specifically associated with company/industry and it is due to factors specific to a company/industry.
Some of the factor is: abour strike, Product category, marketing strategy, research & development etc.
Unsystematic risk can be mitigated through portfolio diversification.
We can say that the risk of failing CA Student due to inadequate and unbalanced preparation of all subjects is Unsystematic risk for CA Student and it can be reduced.
Beta is a measure of firm’s systematic risk or non diversifiable risk. The sensitivity of a security to market movements is called Beta. In India, market is represented by SENSEX and NIFTY.
Answer to your 2nd question:
Even β measures systematic risk, we do not calculate β when question ask for calculation of systematic risk. Because we have to calculate systematic risk in “%” term. But β is in times term.
Suppose, EBT is 1.5 times of EAT, and EAT is 12% then what is EBT?
Here, EBT = EBT X EAT
i.e. EBT = (1.5 X 12%) = 18%.
Similarly, if beta is 1.5 times; means systematic risk is 1.5 times of market risk σ market
Hence, Sys Risk = σ2market X β2sec.