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In finance, the beta (β or market beta or beta coefficient) is a statistic that measures the expected increase or decrease of an individual stock price in proportion to movements of the stock market as a whole. Beta can be used to indicate the contribution of an individual asset to the market risk of a portfolio when it is
To calculate beta, investors divide the covariance of an individual stock (say, Apple) with the overall market, often represented by the Standard & Poor’s 500 Index, by the variance of the ...
Yahoo Finance is a media property that is part of the Yahoo network. It provides financial news, data and commentary including stock quotes , press releases , financial reports , and original content.
Beta measures how volatile a stock is in relation to the broader stock market over time. A stock with a high beta indicates it's more volatile than the overall market and can react with dramatic ...
In investing, upside beta is the element of traditional beta that investors do not typically associate with the true meaning of risk. [1] It is defined to be the scaled amount by which an asset tends to move compared to a benchmark, calculated only on days when the benchmark's return is positive.
Yahoo! Finance uses 5-year expected growth rate and a P/E based on the EPS estimate for the current fiscal year for calculating PEG (PEG for IBM is 1.26 on Aug 9, 2008 [3]). The NASDAQ web-site uses the forecast growth rate (based on the consensus of professional analysts) and forecast earnings over the next 12 months.
The first stage consists of fitting a series of local factor models of the familiar form resulting in a set of factor returns f(i,j,t) where f(i,j,t) is the return to factor i in the jth local model at t. The factor returns are then fit to a second stage model of the form
Roll's critique is a famous analysis of the validity of empirical tests of the capital asset pricing model (CAPM) by Richard Roll.It concerns methods to formally test the statement of the CAPM, the equation