Market risk
The risk for an investor to encounter losses due to changes in overall performance of the market in which he has invested, is known as market risk. Market risk is a kind of systematic risk which cannot be tackled with diversification. It may be hedged. The risks happening due to recessions, political instability, interest rate changes, natural disasters, and terrorist attacks are examples of market risks. Market risks are measured differently for banks, individual stocks, portfolios, and so on.
Let us consider how market risks are measured for individual securities. The market risk of a stock which is a part of a portfolio is measured as the contribution of a security in the overall risk of the portfolio. The individual stock risk is measured by the beta coefficient, which is the volatility of stock with respect to the market.
Let us run regression analysis on stock IBM as dependent variable and GPSC index as the independent variable and try to estimate the beta. It can be done...