Security Market Line - SML

Dictionary Says

Definition of 'Security Market Line - SML'


A line that graphs the systematic, or market, risk versus return of the whole market at a certain time and shows all risky marketable securities.

Also refered to as the "characteristic line".


Investopedia Says

Investopedia explains 'Security Market Line - SML'


The SML essentially graphs the results from the capital asset pricing model (CAPM) formula. The x-axis represents the risk (beta), and the y-axis represents the expected return. The market risk premium is determined from the slope of the SML.

The security market line is a useful tool in determining whether an asset being considered for a portfolio offers a reasonable expected return for risk. Individual securities are plotted on the SML graph. If the security's risk versus expected return is plotted above the SML, it is undervalued because the investor can expect a greater return for the inherent risk. A security plotted below the SML is overvalued because the investor would be accepting less return for the amount of risk assumed.

comments powered by Disqus
Hot Definitions
  1. Valuation

    The process of determining the current worth of an asset or company. There are many techniques that can be used to determine value, some are subjective and others are objective.
  2. Valuation

    The process of determining the current worth of an asset or company. There are many techniques that can be used to determine value, some are subjective and others are objective.
  3. Tech Street

    A term used in the financial markets and the press to refer to the technology sector. Companies like Intel, Microsoft, Apple and Dell are all considered to be part of Tech Street.
  4. Tech Street

    A term used in the financial markets and the press to refer to the technology sector. Companies like Intel, Microsoft, Apple and Dell are all considered to be part of Tech Street.
  5. Momentum Investing

    An investment strategy that aims to capitalize on the continuance of existing trends in the market. The momentum investor believes that large increases in the price of a security will be followed by additional gains and vice versa for declining values.
  6. Momentum Investing

    An investment strategy that aims to capitalize on the continuance of existing trends in the market. The momentum investor believes that large increases in the price of a security will be followed by additional gains and vice versa for declining values.
Trading Center