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 11 April 2026
2022-09-25 09:34:00 Sunday ET

Main reasons for share repurchases Temporary market undervaluation often induces corporate incumbents to initiate a share repurchase program to boost the
2022-04-25 10:34:00 Monday ET

Corporate ownership governance theory and practice The genesis of modern corporate governance and ownership studies traces back to the seminal work
2019-01-15 13:35:00 Tuesday ET

Americans continue to keep their financial New Year resolutions. First, Americans should save more money. Everyone needs a budget to ensure that key paychec
2018-08-23 11:34:00 Thursday ET

Harvard financial economist Alberto Cavallo empirically shows the recent *Amazon effect* that online retailers such as Amazon, Alibaba, and eBay etc use fas
2018-11-25 12:37:00 Sunday ET

The Chinese administration delivers a written response to U.S. demands for trade reforms. This strategic move helps trigger more formal negotiations between
2018-02-03 07:42:00 Saturday ET

Quant Quake 2.0 shakes investor confidence with rampant stock market fears and doubts during the recent Fed Chair transition from Janet Yellen to Jerome Pow