A new breakdown every week — read the newsletter →
PeopleBusinessesTools
Strategies Mental ModelsDecision Tools Business ModelsFrameworksMoats
Learn Book SummariesReading Lists GuidesQuote CollectionsLearning Paths
Artificial IntelligenceNewsletter AboutContact
Diversified holding company

Berkshire Hathaway

A failing textile mill turned into a trillion-dollar machine for allocating capital — powered by insurance money it holds but doesn't own.

4 min read · Founded 1839 (textiles); Buffett era from 1965

The story

Berkshire Hathaway is the strangest great company in the world: a $1-trillion-plus conglomerate with no unifying product, run for sixty years from a small office in Omaha with almost no head-office staff. It owns a railroad, insurers, a candy maker, utilities, a chunk of Apple and dozens of other businesses, bound together by one thing — Warren Buffett's approach to allocating capital. It is less a company than a machine for turning cash into more cash, patiently, over decades.

The name is an accident of history. Berkshire was a dying New England textile maker when Buffett began buying its cheap shares in the 1960s; taking control in 1965 turned out to be, by his own account, a mistake he spent decades redeeming by redeploying the failing mill's cash into far better businesses. The lesson — that a bad business is a trap no matter how cheap — shaped everything after.

By the numbers
~19.9%
Annual compound gain 1965–2024, vs ~10% for the S&P 500
$1T+
Market value milestone reached in 2024
60
Years under Buffett
~$300B+
Insurance float and cash available to deploy

How it makes money

Three layers. Berkshire's insurers collect premiums now and pay claims later, leaving Buffett a vast pool of 'float' to invest in the meantime — cheap, effectively permanent capital. That capital buys whole businesses (BNSF railway, See's Candies, Berkshire Hathaway Energy) that throw off cash, and funds a concentrated portfolio of public stocks (long Coca-Cola and American Express, more recently Apple). Profits from all three are recycled into the next opportunity, with almost nothing paid out as dividends.

It's far better to buy a wonderful company at a fair price than a fair company at a wonderful price.Warren Buffett

The moat

Berkshire's advantage is structural and cultural. The insurance float gives it patient capital no ordinary investor commands. Its reputation as a permanent, hands-off owner makes it the buyer of choice for family businesses that want to sell without being gutted — deals rivals never get to see. And the decentralised culture, with subsidiary CEOs left alone to run their businesses, keeps overhead near zero. The 2025 succession — Greg Abel taking the CEO chair while Buffett stays chairman — was engineered to make that culture outlast the man.

Key people

Warren Buffett

Chairman; architect of the company

Charlie Munger

Vice-chairman, partner, intellectual foil (d. 2023)

Greg Abel

CEO from end of 2025

Ajit Jain

Vice-chairman for insurance

The playbook

Key decisions & principles

Principle 1

Use other people's money — patiently

Insurance float gave Berkshire cheap, permanent capital to invest. Finding a low-cost, patient funding source is often the real edge, not stock-picking skill.

Do this: Look for a structural source of cheap, patient capital before you look for returns.
Principle 2

Allocate capital ruthlessly

Every dollar of profit is sent wherever it earns the most, regardless of sentiment or history. Berkshire is, at bottom, a capital-allocation engine.

Do this: Judge every dollar by its next-best use, not by where it came from.
Principle 3

Buy quality and hold forever

Berkshire holds great businesses for decades, letting compounding and low turnover — and deferred taxes — do the work. Activity is the enemy of returns.

Do this: Prefer durable quality you can hold for years over cheap things you must trade.
Principle 4

Be the buyer people trust

A reputation as a permanent, non-meddling owner brings Berkshire deals no one else is offered. Trust is a sourcing advantage.

Do this: Build a reputation that makes people bring their best opportunities to you first.
Principle 5

Institutionalise the culture

The succession was planned for years so the machine runs without its architect. Great systems outlive great individuals only if you design them to.

Do this: Build the company so its way of working survives the departure of its founder.

What to read next

  • The Snowball — Alice Schroeder
  • Poor Charlie's Almanack — Charlie Munger
  • Berkshire Hathaway Letters to Shareholders — Warren Buffett
  • The Outsiders — William Thorndike

Why this matters

The strategy behind this business connects to models and moats you can study:

Frequently asked questions

What does Berkshire Hathaway actually do?

It is a holding company that owns dozens of businesses outright (from a railway to insurers to See's Candies) and a large stock portfolio, all bound together by Warren Buffett's capital-allocation discipline.

Where does Berkshire get its investment money?

Largely from insurance 'float' — premiums collected now and paid out as claims later — which gives Buffett a huge, low-cost, effectively permanent pool of capital to invest.

Who runs Berkshire after Buffett?

Greg Abel became CEO at the end of 2025, with Buffett remaining chairman — a succession planned years in advance to preserve the culture.

Continue exploring