In this article we will discuss about the Markowitz mean-variance analysis and its importance in portfolio management. Mean-Variance Theory: Concept of Mean Variance: Harry Markowitz is regarded as the father of modern portfolio theory. According to him, investors are mainly concerned with two properties of an asset: risk and return, but by diversification of portfolio it is possible to tradeoff [...]
William Sharpe (1964) published the Capital Asset Pricing Model (CAPM): According to CAPM, return of a portfolio is equal to the sum of risk-free rate of return and a risk premium that is proportional to its beta. As per this model, risk and return are linearly associated. Ri = Rf+ βi (Rm-Rf) Where, Ri = Risk free rate of return [...]
Systematic risk can be measured using beta. Stock Beta is the measure of the risk of an individual stock in comparison to the market as a whole. Beta is the sensitivity of a stock's returns to some market index returns (e.g., S&P 500). Basically, it measures the volatility of a stock against a broader or more general market. It is [...]