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The Concepts of Beta in the Stock Market

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The Concepts of Beta in the Stock Market

Week Nine Research Paper
Principles of Managerial Finance
MGT3310
Instructor Wade
Sherry Curtis

“Beta is the measure of the volatility, or it can be a systematic risks of a security or portfolio that comparison to a market as a whole. Volatility is the amount of uncertainty or risk in the size of changes in a security's value. The higher the volatility means that the price of the security can change dramatically over a short time period in either direction. The lower volatility means that a security's value will not fluctuate as dramatically as higher volatility, but will change in value at a steady pace over a period of time. Beta is calculated using the regression analysis. Regression analysis is a statistical process that estimates the relationships that are among variables. It helps to understand how the typical value of the dependent variable changes when independent variables are varied and the other independent variables are fixed. It is used for prediction and forecasting.” (Investopedia US, A Division of ValueClick, Inc;, 2013) (Investopedia US, 2013) “A beta of one will indicate that the security's price will move with the market, thus a beta with less than one means that the security will be less volatile than the market. A beta that is greater than one will indicate that the security's price will be more volatile than the market. An example of a stock with a beta value of 1.3 has moved 130% for every 100% move in the benchmark that is based on price level. A stock beta of .5 has moved 50% for every 100% move in the underlying index. Many of the utility stocks will have a beta that is less than one. Many high-techs, Nasdaq-based stocks will have a beta that is greater than one, that will offer the possibility of a higher rate of return but has more risk involved.” (Little, Betas Aid in Stock trading-But which Beta do You Use?, 2013) (Derric, 2012) “There are advantages and disadvantages of both low and high beta stocks. When you have a low beta stock it is considered to be more stable and have gains when the market is appreciated, but these gains will be less than the market as a whole. When the market is dropping, you have a stock with a low beta will more than likely experience less of a drop. A stock with a high beta will rise quickly and outperform the market but with having a larger return you have the possibility for larger losses. Low beta stocks are far less risky but they offer less of a reward. High beta stocks are far more risky but they offer higher rewards. In mathematical terms, beta is the ratio of covariance of the market's returns and security's return to the variance of the market's return. When you rearrange the mathematical terms it gives beta to be a product of two numbers, making the ratio of the security's volatility to that of the market's volatility. The second one is the correlation of the security's returns to the market's return. Stock beta can provide stock analysts with insights into the movements of a particular stock that is relative to the overall market. Stock beta is also referred to financial elasticity. Analysts can use this information to get a better feel for a stocks risk profile. The beta value is calculated by using the price management of the stock that you are analyzing.” (Volatility, 2007) (Little, Using and Missing the Beta Ratio, 2013) “There are some problems that can arise with relying on beta scores alone for determining the risk of an investment. Beta looks backwards and the history and it is not always accurate predictor of the future. It also does not account for a change that is in the works, like new line of business or industry shifts. Beta will suggest the stock’s price volatility relative to the whole market, but the volatility can be an upward and downward movement. It is best to use the beta decision making in short-term decision making. For long-term investing the beta for a single predictor of risk there are too many flaw. While looking at stock and doing research on the websites you see that three different websites report three different betas for the same stock. This can happen because there are different ways to calculate beta. In one of the variables in the beta calculation depends on far back you go to do the calculation. Most are based on three years and there are others that are based on five years of numbers. It is best to stick with names you already know and that you trust and to compare companies use the same web site, the numbers should run consistent.” (Derric, 2012) (Volatility, 2007) (Little, Betas Aid in Stock trading-But which Beta do You Use?, 2013)

Bibliography
Derric, J. (2012, January 30). Understanding Stocks: the Concept of Beta. Retrieved 08 24, 2013, from benzinga: http://www.benzinga.com/general/psychology/12/01/2300328/understanding-stocks-the-concept-of-beta
Investopedia US, A Division of ValueClick, Inc;. (2013). Beta. Retrieved 08 24, 2013, from INVESTOPEDIA: http://www.investopedia.com/terms/b/beta.asp
Investopedia US, A. D. (2013). Volatility. Retrieved 08 24, 2013, from INVESTOPEDIA: http.com://www.investopedia.com/terms/v/volatility.asp
Little, K. (2013). Betas Aid in Stock trading-But which Beta do You Use? Retrieved 08 24, 2013, from About.com: http://stocks.about.com/od/understandingstocks/a/1202Beta.htm
Little, K. (2013). Using and Missing the Beta Ratio. Retrieved 08 24, 2013, from About.com Money Stocks: http://stocks.about.com/od/evaluatingstocks/a/beta120904.htm
Volatility, S. B. (2007). Stock Beta and Volatility. Retrieved 08 24, 2013, from Money-Zine: http://www.money-zine.com/investing/stocks/stock-beta-and-volatility/

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