Static Testing: A form of software testing where the software isn't actually used it checks mainly for the sanity of the code, algorithm, or document. It is used by the developer who wrote the code. 89. Stability Testing: Testing technique which attempts to determine if an application will crash.
Before we start, you'll need to understand a few key terms and concepts, namely alpha, beta, systematic risk and idiosyncratic risk. Beta - The return generated from a portfolio that can be attributed to overall market returns. Exposure to beta is equivalent to exposure to systematic risk. The alpha is the portion of a portfolio's return that cannot be attributed to market returns, and is thus independent from market returns.
DEFINITION of '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), a model that calculates the expected return of an asset based on its beta and expected market returns. beta of greater than 1 indicates that the security's price will be more volatile than the market. For example, if a stock's beta is 1.2, it's theoretically 20% more volatile than the market. Many utilities stocks have a beta of less than 1.