The two Buffetts — partnership era and moat era

Two playbooks, one investor

The Buffett most people picture buys wonderful businesses with durable moats and holds them forever. That is the second half of the career.

The first half — the partnership years — was Graham-school deep value. It bought securities that were statistically cheap against the assets behind them, held them until the discount closed, and sold. The businesses were often mediocre and the holding periods were short. Buffett later described these as cigar butts: one free puff left, but free.

Both are Buffett. They screen for close to opposite things, and treating them as one framework produces a lens that matches nothing.

What the partnership era looked for

• Net-nets — companies trading below net current asset value, meaning current assets minus all liabilities exceeded the market cap. You were buying the working capital and getting the business free
• Single-digit price-to-earnings on ordinary businesses
• Discounts to tangible book, where tangible meant genuinely realisable
• Workouts — a separate bucket for special situations such as liquidations, spin-offs and announced mergers, where the return came from an event rather than from the market re-rating anything

That last bucket mattered more than it is usually given credit for. Workouts were uncorrelated with the market, which is what let the partnership hold up in falling years.

Why he left it behind

Two reasons, and only one is the famous one.

The famous one is Munger's influence and the realisation that a great business compounds while a cheap one only converges once. The arithmetic of a business earning high returns on reinvested capital beats a one-time discount closing, as long as you hold it long enough.

The less romantic reason is size. Net-nets are small by construction, and a partnership managing serious money cannot buy enough of them to matter. The strategy did not stop working; it stopped being available at scale.

That distinction matters for anyone applying it today. A small portfolio can still run the partnership playbook. A large one cannot, and its authors were explicit about why.

Reading the two lenses together

When a company scores well on the early-Buffett lens and poorly on the moat lens, it is statistically cheap and structurally unremarkable — which is exactly what the partnership bought on purpose.

The reverse, strong on moat and weak on deep value, is the modern Berkshire holding: quality you are not getting at a discount.

Both are coherent positions. What is not coherent is expecting one framework to endorse the other's picks, and reading the disagreement as an error in the scoring rather than a genuine difference in what the two eras looked for.