Finance, Currency
Beta-factor - an indicator that measures the risk in the stock market
The modern economic system, which forms the conditions of existence for large corporations, enterprises and even state-owned companies through the creation of joint-stock companies, has already become familiar to any person. Of course, in our country investing in securities does not have such a level of popularity among the population, as in the rest of the civilized world with a developed market system of economic relations. However, recent trends indicate an ever-increasing reorientation of ordinary depositors of bank deposits to more complex investment systems. This, in turn, is a good signal for Russian society, which indicates the gradual approach of our homeland to the western standard of living and the priority of values. Of course, God forbid to do without the economic side of the modern civilized world, without its absurd sides.
Beta Ratio
How to calculate the beta coefficient?
To determine this indicator, methods of mathematical covariance are used, that is, methods for calculating quantities that reflect the dependence of two random values. Thus, the beta coefficient of the market portfolio is Dependence, expressed in numerical form, on the current indicator of market fluctuations for a certain time period. That is, with a general growth of the market by 10% and a beta coefficient of 0.5 units, the value of the securities portfolio of the joint-stock company will grow by only 5%. To calculate this indicator, a covariance-dispersion formula is used, the beta coefficient According to Which is determined as follows:
Βa = Cov (ra, rp) / Var (rp), where:
- Ra is the value that determines the given coefficient;
- Rp - the securities market;
- Cov - covariance of quantities;
- Var - the dispersion of the securities market.
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