Berkshire Hathaway is a holding company, which owns subsidiaries in insurance, rail roads, utilities, manufacturing services, retail and home building. The most important of these are insurance businesses conducted on both a primary basis and insurance basis, a freight rail transportation business and a group of utility and energy generation and distribution businesses. It has four major operating sectors - The Insurance group (includes GEICO, Government Employees Insurance Company writes private passenger automobile insurance); General Re (conducts reinsurance business, offering property and casualty, life and health coverage to clients worldwide); Berkshire Hathaway Reinsurance Group (underwrites excess-of-loss reinsurance and quota-share coverage for insurers and reinsurers globally); Berkshire Hathaway Primary Group (comprises a wide variety of independently-managed insurance businesses that principally write liability coverage for commercial accounts)....
+See MoreSharpe-Lintner-Black CAPM alpha (Premium Members Only) Fama-French (1993) 3-factor alpha (Premium Members Only) Fama-French-Carhart 4-factor alpha (Premium Members Only) Fama-French (2015) 5-factor alpha (Premium Members Only) Fama-French-Carhart 6-factor alpha (Premium Members Only) Dynamic conditional 6-factor alpha (Premium Members Only) Last update: Saturday 25 April 2026
2019-07-09 15:14:00 Tuesday ET

The Chinese new star board launches for tech firms to list at home. The Nasdaq-equivalent new star board serves as a key avenue for Chinese tech companies t
2025-10-08 11:34:00 Wednesday ET

Stock Synopsis: With a new Python program, we use, adapt, apply, and leverage each of the mainstream Gemini Gen AI models to conduct this comprehensive fund
2018-01-25 08:32:00 Thursday ET

After its flagship iPhone X launch, Apple reports its highest quarterly sales revenue over $80 billion in the tech titan's 41-year history. Apple expect
2019-05-03 11:29:00 Friday ET

Key tech unicorns blitzscale business niches for better scale economies from Uber and Lyft to Pinterest, Slack, and Zoom. LinkedIn cofounder and serial entr
2020-11-24 09:30:00 Tuesday ET

Many analytic business competitors can apply smart data science to support their distinctive capabilities and strategic advantages. Thomas Davenport and
2019-11-13 11:34:00 Wednesday ET

The new Brexit deal can boost British pound appreciation and economic optimism. British prime minister Boris Johnson wins the parliamentary vote on his new