For any given stock, this quantity represents the ratio by which it changes given a change in the return of the market as a whole, leading it to sometimes be compared to risk or volatility.
Brennan and Copeland noted a twenty percent increase in this quantity after a stock split in announced, with an additional thirty percent increase occurring after the split is executed. Â Clarkson and Thompson tracked the decrease of this quantity as information increases, drawing conclusions about the ratios of multiple types of uncertainty. Â This quantity is usually taken by dividing the covariance of two returns with the variance of a portfolio or a market. Â For the market as a whole, this quantity is equal to (*) one. Â For any given stock, this quantity represents the ratio by which it changes given a change in the return of the market as a whole, leading it to sometimes be compared to risk or volatility. Â For 10 points, name this quantity from finance, often contrasted with a manager's returns, alpha.
Brennan and Copeland noted a twenty percent increase in this quantity after a stock split in announced, with an additional thirty percent increase occurring after the split is executed.
beta