Berkshire Hathaway Inc. (NYSE:BRK.B)

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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)....

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Here we provide our AYA proprietary alpha stock signals for all premium members on our AYA fintech network platform. Specifically, a high Fama-French multi-factor dynamic conditional alpha suggests that the stock is likely to consistently outperform the broader stock market benchmarks such as S&P 500, Dow Jones, Nasdaq, Russell 3000, MSCI USA, and MSCI World etc. Since March 2023, our proprietary alpha stock signals retain U.S. Patent and Trademark Office (USPTO) fintech patent protection, approval, and accreditation for 20 years. Our homepage and blog articles provide more details on this proprietary alpha stock market investment model with robust long-term historical backtest evidence.

Sharpe-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 7 February 2026

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Amazon acquires an Internet pharmacy PillPack in order to better compete with Walgreens and many other drug distributors.

Peter Prince

2018-06-29 11:41:00 Friday ET

Amazon acquires an Internet pharmacy PillPack in order to better compete with Walgreens and many other drug distributors.

Amazon acquires an Internet pharmacy PillPack in order to better compete with Walgreens Boots Alliance, CVS Health, Rite Aid, and many other drug distributo

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Citron Research short-sellers initiate a class-action lawsuit against Tesla and its executive chairman Elon Musk.

Monica McNeil

2018-09-05 08:34:00 Wednesday ET

Citron Research short-sellers initiate a class-action lawsuit against Tesla and its executive chairman Elon Musk.

Citron Research short-sellers initiate a class-action lawsuit against Tesla and its executive chairman Elon Musk because he might have deliberately orchestr

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CEO overconfidence and corporate performance

Laura Hermes

2022-11-05 11:32:00 Saturday ET

CEO overconfidence and corporate performance

CEO overconfidence and corporate performance Malmendier and Tate (JFE 2008, JF 2005) argue that overconfident CEOs are more likely to initiate mergers an

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Neoliberal public choice continues to spin national taxation and several other forms of government intervention.

Peter Prince

2019-01-07 18:42:00 Monday ET

Neoliberal public choice continues to spin national taxation and several other forms of government intervention.

Neoliberal public choice continues to spin national taxation and several other forms of government intervention. The key post-crisis consensus focuses on go

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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 fundamental analysis of Cisco Systems (U.S. stock symbol: $CSCO).

Joseph Corr

2025-10-07 10:30:00 Tuesday 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 fundamental analysis of Cisco Systems (U.S. stock symbol: $CSCO).

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Anat Admati and Martin Hellwig raise broad critical issues about bank capital regulation and asset market stabilization.

Charlene Vos

2023-06-07 10:27:00 Wednesday ET

Anat Admati and Martin Hellwig raise broad critical issues about bank capital regulation and asset market stabilization.

Anat Admati and Martin Hellwig raise broad critical issues about bank capital regulation and asset market stabilization. Anat Admati and Martin Hellwig (

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