Green bowel movements are very common and usually no cause for concern. People generally expect their stools to be a consistent brownish color, but it doesnât take much to cause that to change. Any change in stool color can be very alarming, but the cause is almost always benign.
What is 'Beta'. Beta is a measure of the volatility, or systematic risk, of a security or a portfolio in comparison to the market as a whole. Beta is used in the capital asset pricing model (CAPM), which calculates the expected return of an asset based on its beta and expected market returns. Beta is also known as the beta coefficient.
Bi or beta, is the measure of a specific stock's market risk and shows that stock's volitility relative to the market. Beta is not always constant; it changes sometimes. The most common calculation for beta is to run a regression of the security's past returns against the past returns of the market (above formula).The most current and up-to-date beta would most likely be found in the newspaper in the business section where all the stocks are listed.It would probably be listed with the other stats, like P/E (price earnings). If not found there, try the finance section of Yahoo for a specific company.nswers. Best Answer: The formula looks like this: Ri = Rrf + Bi(Rm-Rrf) Can be read as: R sub i equals R sub rf plus beta (Bi) times R sub m minus R sub rf where R sub i is the required return, R sub rf is return on a risk-free investment, R sub m is the return on the entire market and (Rm-Rrf) is the risk premium.