A Beta az Aehr Test Systems - 2.08
A BETA azt jelzi, hogy az állomány több-kevésbé volatilis, mint a piac egésze. Az 1-nél kevesebb béta azt jelzi, hogy az állomány kevésbé ingadozó, mint a piac, míg az 1-nél nagyobb béta azt jelzi, hogy az állomány volatilisabb. A volatilitást az átlag körüli ár ingadozásaként méri.
Beta is a measure of the risk arising from exposure to general market movements as opposed to idiosyncratic factors. The market portfolio of all investable assets has a beta of exactly 1. A beta below 1 can indicate either an investment with lower volatility than the market, or a volatile investment whose price movements are not highly correlated with the market. A beta greater than one generally means that the asset both is volatile and tends to move up and down with the market. Beta is important because it measures the risk of an investment that cannot be reduced by diversification. It does not measure the risk of an investment held on a stand-alone basis, but the amount of risk the investment adds to an already-diversified portfolio. In the capital asset pricing model, beta risk is the only kind of risk for which investors should receive an expected return higher than the risk-free rate of interest.
headquartered in fremont, california, aehr test systems is a worldwide supplier of systems for burning-in and testing memory and logic integrated circuits and has an installed base of more than 2,500 systems worldwide. aehr test has developed and introduced several innovative products, including the abts, foxtm and max systems and the diepak® carrier. the abts system is aehr test’s newest system for packaged part test during burn-in for both low-power and high-power logic as well as all common types of memory devices. the fox system is a full wafer contact test and burn-in system. the max system can effectively burn-in and functionally test complex devices, such as digital signal processors, microprocessors, microcontrollers and systems-on-a-chip. the diepak carrier is a reusable, temporary package that enables ic manufacturers to perform cost-effective final test and burn-in of bare die.