Berkshire Hathaway Inc. (NYSE:BRK.B)

Real-time price: | Most recent change:0.00%

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 More


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 1 November 2025

Blog+More

Elon Musk envisions a bold fantastic future with his professional trifecta of lean enterprises SolarCity, SpaceX, and Tesla.

Joseph Corr

2020-04-10 11:33:00 Friday ET

Elon Musk envisions a bold fantastic future with his professional trifecta of lean enterprises SolarCity, SpaceX, and Tesla.

Elon Musk envisions a bold fantastic future with his professional trifecta of lean startup enterprises SolarCity, SpaceX, and Tesla. Ashlee Vance (2015)

+See More

The Chinese administration delivers a written response to U.S. demands for trade reforms.

Olivia London

2018-11-25 12:37:00 Sunday ET

The Chinese administration delivers a written response to U.S. demands for trade reforms.

The Chinese administration delivers a written response to U.S. demands for trade reforms. This strategic move helps trigger more formal negotiations between

+See More

Most agile lean enterprises often choose to cut costs strategically to make their respective business models fit for growth.

Daphne Basel

2020-10-27 07:43:00 Tuesday ET

Most agile lean enterprises often choose to cut costs strategically to make their respective business models fit for growth.

Most agile lean enterprises often choose to cut costs strategically to make their respective business models fit for growth. Vinay Couto, John Plansky,

+See More

The Trump administration introduces new tariffs on $50 billion Chinese goods amid the persistent bilateral trade dispute.

Laura Hermes

2018-06-09 16:40:00 Saturday ET

The Trump administration introduces new tariffs on $50 billion Chinese goods amid the persistent bilateral trade dispute.

The Trump administration introduces new tariffs on $50 billion Chinese goods amid the persistent bilateral trade dispute. The tariffs effectively boost cost

+See More

U.S. government shuts down again because House Democrats refuse to spend $5 billion on the border wall.

Amy Hamilton

2019-01-19 12:38:00 Saturday ET

U.S. government shuts down again because House Democrats refuse to spend $5 billion on the border wall.

U.S. government shuts down again because House Democrats refuse to spend $5 billion on the border wall that would give President Trump great victory on his

+See More

Daniel Goleman explains why working with emotional intelligence helps hone our social skills for smarter, better, and more effective leaders, teams, and organizations in modern life, business, innovation, and entrepreneurship.

Fiona Sydney

2025-07-05 11:23:00 Saturday ET

Daniel Goleman explains why working with emotional intelligence helps hone our social skills for smarter, better, and more effective leaders, teams, and organizations in modern life, business, innovation, and entrepreneurship.

Former New York Times science author and Harvard psychologist Daniel Goleman explains why working with emotional intelligence helps hone our social skills f

+See More