risk and return portfolio theory pdf

Risk And Return Portfolio Theory Pdf

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In simple word, it is used to hedge the risk which is being faced by the company. The CAPM can be neatly classified as belonging to the latter, since it is concerned with the determination of the prices of capital assets in a competitive market.

Modern portfolio theory MPT , or mean-variance analysis , is a mathematical framework for assembling a portfolio of assets such that the expected return is maximized for a given level of risk. It is a formalization and extension of diversification in investing, the idea that owning different kinds of financial assets is less risky than owning only one type.

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Concept of Risk-Return in Portfolio Context (With Formulas)

In the article on portfolio theory, we saw that the motivation behind the establishment of a portfolio is that risk the bad can be reduced without a consequential reduction in return the good. This was mathematically evident when the portfolios' expected return was equal to the weighted average of the expected returns on the individual investments, while the portfolio risk was normally less than the weighted average of the risk of the individual investments. The portfolio's total risk as measured by the standard deviation of returns consists of unsystematic and systematic risk. We saw the dramatic risk reduction effect of diversification see Example 1. If an investor invests in just 15 companies in different sectors a well-diversified portfolio , it is possible to virtually eliminate unsystematic risk. The only risk affecting a well-diversified portfolio is therefore systematic. As a result, an investor who holds a well-diversified portfolio will only require a return for systematic risk.

Modern portfolio theory

In finance , the Markowitz model - put forward by Harry Markowitz in - is a portfolio optimization model; it assists in the selection of the most efficient portfolio by analyzing various possible portfolios of the given securities. Here, by choosing securities that do not 'move' exactly together, the HM model shows investors how to reduce their risk. The HM model is also called mean - variance model due to the fact that it is based on expected returns mean and the standard deviation variance of the various portfolios. It is foundational to Modern portfolio theory. Markowitz made the following assumptions while developing the HM model: [1] [2].

Register as a Premium Educator at hbsp. Publication Date: April 11, Source: Harvard Business Publishing. Core Curriculum Readings in Finance provides an understanding of fundamental concepts in finance. Readings include Interactive Illustrations to help master complex concepts. This is the second in a set of two Readings on Modern Portfolio Theory. This Reading starts by examining the effect of diversification on portfolio volatility, graphically and mathematically, for different levels of correlation among portfolio assets.

So far our analysis of risk-return was confined to single assets held in isolation. In real world, we rarely find investors putting their entire wealth into single asset or investment. Instead they build portfolio of investments and hence risk-return analysis is extended in context of portfolio. A portfolio is composed of two or more securities. Each portfolio has risk-return characteristics of its own. In their Endeavour to strike a golden mean between risk and return the traditional portfolio managers diversified funds over securities of large number of companies of different industry groups.

PDF | In investment, particularly in the portfolio management, the risk and returns are two crucial measures in making investment decisions.

Modern Portfolio Theory (MPT)

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Markowitz model

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Abstract: In investment, particularly in the portfolio management, the risk and Keywords: risk, return, shares, portfolio, standard deviation, minimum variance.


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