Le Beta de Varian Medical Systems, Inc. est 1.07
BETA indique si une action est plus ou moins volatile que le marché dans son ensemble. Un bêta inférieur à 1 indique que l'action est moins volatile que le marché, tandis qu'un bêta supérieur à 1 indique que l'action est plus volatile. La volatilité est mesurée par la fluctuation du prix autour de la moyenne.
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.
Varian Medical Systems, Inc. designs, manufactures, sells, and services medical devices and software products for treating cancer and other medical conditions worldwide. It operates in Oncology Systems and Proton Solutions segments. The Oncology Systems segment offers hardware and software products for treating cancer with radiotherapy, fixed field intensity-modulated radiation therapy, image-guided radiation therapy, volumetric modulated arc therapy, stereotactic radiosurgery, stereotactic body radiotherapy, and brachytherapy, as well as quality assurance equipment. Its products include linear accelerators, brachytherapy after loaders, treatment accessories, and quality assurance software; and information management, treatment planning, image processing, clinical knowledge exchange, patient care management, decision-making support, and practice management software. This segment serves university research and community hospitals, private and governmental institutions, healthcare agencies, physicians' offices, medical oncology practices, radiotherapy centers, and cancer care clinics. The Proton Solutions segment designs, develops, manufactures, sells, and services products and systems for delivering proton therapy for the treatment of cancer. The company has a strategic agreement with Siemens AG; partnership agreement with The National University Cancer Institute; and a strategic collaboration with Telix Pharmaceuticals for advanced prostate imaging. Varian Medical Systems was formerly known as Varian Associates, Inc. and changed its name to Varian Medical Systems, Inc. in April 1999. The company was founded in 1948 and is headquartered in Palo Alto, California.