Security Market Line

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Security market line

Line representing the relationship between expected return and market risk or beta. The slope of this line is the risk premium for beta.

Security Market Line

The linear relationship between expected asset returns and betas posited by the Capital Asset Pricing Model.
Copyright © 2012, Campbell R. Harvey. All Rights Reserved.

Security Market Line

In Markowitz Portfolio Theory, a line on a chart representing the capital asset pricing model. The security market line plots risk versus expected return of the market. The security market line is a useful tool in determining whether a given security is undervalued and/or a market outperform. If a security plots the security market line, it indicates a higher expected return for a given level of risk than the market as a whole.
Farlex Financial Dictionary. © 2012 Farlex, Inc. All Rights Reserved

security market line

A line used to illustrate the relationship between risk and return for individual securities. The security market line shows a positive linear relationship between returns and systematic risk as measured by beta.
Wall Street Words: An A to Z Guide to Investment Terms for Today's Investor by David L. Scott. Copyright © 2003 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved. All rights reserved.
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