Expected Return on an Individual Security


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Understanding the Security Market Line

All the correctly priced securities are plotted on the SML. The assets that lie above the line are undervalued because for a given amount of risk, they yield a higher return. The assets below the line are overvalued because for a given amount of risk, they yield a lower return. The slope of the SML is equal to the market risk premium and reflects the risk return trade off at a given time. The idea of a security market line follows from the ideas asserted in the last section, which is that investors are naturally risk averse, and a premium is expected to offset the volatility of a risky investment.

In a perfect world, with perfect information, any capital investment is on the security market line.

The idea of a security market line is important for understanding the capital asset pricing model. The Security Market Line : This is an example of a security market line graphed. The y-intercept of this line is the risk-free rate the ROI of an investment with beta value of 0 , and the slope is the premium that the market charges for risk. The plotted location of an instrument on the SML has consequences on its price, return, and cost of capital it contributes to a firm.

Expected Return of a Security and Its Risk | Financial Management

The security market line is a graphical representation of the capital asset pricing model that illustrates the idea that investments are priced efficiently based on the expected return and beta-value risk. Companies often turn to capital markets in order to generate funds — using the issuance of either debt or equity.

If the price of the instrument goes up, its expected returns go down, and vice versa. A firm that is raising capital would like to sell these instruments for a high price, and investors want to buy them for a low price.

Understanding the Security Market Line

An instrument plotted below the SML would have a low expected return and a high price. The rational investor will require either a higher return or lower price, which will both result in a higher cost of capital for the company.

An instrument plotted above the line has a high expected return and a low price. This would not be an attractive market situation for a company looking to raise capital.

Expected Risk and Risk Premium

Such a firm wants to raise as much money as possible, which means getting investors to pay the highest price possible. An instrument plotted on the SML can be thought of to be fairly priced for the amount of expected return. Privacy Policy. Skip to main content. Introduction to Risk and Return. Search for:. Understanding the Security Market Line.

Chapter 7 -Risk Analysis

Expected Risk and Risk Premium Overall riskiness of an asset is composed of its own individual risk beta along with its risk in relation to the market as a whole. Key Takeaways Key Points In return for undertaking risk, investors expect to be compensated in such as a way as to reasonably reward them. It cannot be diversified away. Unsystematic risk is risk to which only specific classes of securities or industries are vulnerable, and with proper grouping of assets it can be reduced or even eliminated. Beta is a number describing the correlated volatility of an asset in relation to the volatility of the benchmark that said asset is being compared to — usually the market as expressed in an index.

Key Terms Risk free rate : Risk-free interest rate is the theoretical rate of return of an investment with no risk of financial loss. They do not pay interest prior to maturity; instead they are sold at a discount of the par value to create a positive yield to maturity. Defining the Security Market Line The security market line displays the expected rate of return of a security as a function of systematic, non-diversifiable risk.

Understanding the Security Market Line | Boundless Finance

Key Takeaways Key Points The security market line is the theoretical line on which all capital investments lie. Investors want higher expected returns for more risk. On a graph, the line has risk on its horizontal axis independent variable and expected return on the vertical axis dependent variable. The same concept can be applied to the risk involved with securities. The risk involved when evaluating a particular stock is accounted for in the capital asset pricing model formula with beta.

Return and Risk of a Portfolio

Specifically regarding the capital asset pricing model formula, beta is the measure of risk involved with investing in a particular stock relative to the risk of the market. The beta of the market would be 1. An individual security with a beta of 1.


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  • Understanding Beta and Market Risk.

The risk free rate would be the rate that is expected on an investment that is assumed to have no risk involved. For the US, the US treasury bill rate is generally used as it is short term and the collapse of the treasury bill would theoretically, at minimum, be a large enough disruption to inhibit gauging value, or at worse, be a collapse of the entire monetary system which relies on a fiat currency. The capital asset pricing model formula can be broken up into two components: the risk free rate and the risk premium of the particular security.

The risk premium is beta times the difference between the market return and a risk free return. In the capital asset pricing model formula, by subtracting the market return from a risk free return, the risk of the overall market can then be determined. By multiplying beta times this risk of the market, the risk of the individual stock can then be determined.

As previously stated, beta is the risk of an individual security relative to the market. A beta of 2 would be twice as risky as the market.

In practice, risk is synonymous with volatility.

Expected Return on an Individual Security Expected Return on an Individual Security
Expected Return on an Individual Security Expected Return on an Individual Security
Expected Return on an Individual Security Expected Return on an Individual Security
Expected Return on an Individual Security Expected Return on an Individual Security
Expected Return on an Individual Security Expected Return on an Individual Security
Expected Return on an Individual Security Expected Return on an Individual Security

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