Berkshire Hathaway Inc.のBetaは0.90です。
BETAは、株式が市場全体よりも多かれ少なかれ揮発性であるかどうかを示します。 1未満のベータは株式が市場よりも揮発性が低いことを示し、1より大きいベータは株式がより揮発性であることを示します。ボラティリティは、平均値周辺の価格の変動として測定されます。
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.
Berkshire Hathaway Inc., through its subsidiaries, engages in the insurance, freight rail transportation, and utility businesses worldwide. It provides property, casualty, life, accident, and health insurance and reinsurance; and operates railroad systems in North America. The company also generates, transmits, stores, and distributes electricity from natural gas, coal, wind, solar, hydro, nuclear, and geothermal sources; operates natural gas distribution and storage facilities, interstate pipelines, liquefied natural gas facilities, and compressor and meter stations; and holds interest in coal mining assets. In addition, the company manufactures boxed chocolates and other confectionery products; specialty chemicals, metal cutting tools, and components for aerospace and power generation applications; and flooring, insulation, roofing and engineered, building and engineered components, paints and coatings, and bricks and masonry products, as well as offers manufactured and site-built home construction, and related lending and financial services; and recreational vehicles, apparel products, jewelry, and custom picture framing products, and alkaline batteries. Further, it manufactures castings, forgings, fasteners/fastener systems, and aerostructures; and seamless pipes, fittings, downhole casing and tubing, and various mill forms. Additionally, the company distributes televisions and information; franchises and services quick service restaurants; distributes electronic components; and offers logistics services, grocery and foodservice distribution services, and professional aviation training and shared aircraft ownership programs. It also retails automobiles; furniture, bedding, and accessories; household appliances, electronics, and computers; jewelry, watches, crystal, china, stemware, flatware, gifts, and collectibles; kitchenware; and motorcycle apparel and equipment. The company was incorporated in 1998 and is headquartered in Omaha, Nebraska.