The investor library

Charlie Munger

1924-2023 · Berkshire Hathaway, Wesco, Daily Journal · The man who moved the standard.

CM

Concentrated quality

~19.8% a year
1962-1975 · the partnership

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How far to an ideaOne conversation, repeated for forty years

Overview

Buffett's partner and Berkshire's vice-chairman from 1978 until his death in 2023, aged 99. The one who talked Buffett out of buying cheap companies and into buying good ones — which is, on any honest accounting, among the most valuable pieces of advice ever given.

The open question

The open question is whether Munger left a method or an editor's veto. He wrote almost nothing systematic, ran his own partnership for thirteen years with volatility Buffett never accepted, and his most cited contribution is talking someone else out of things. "Worldly wisdom" and a latticework of mental models are either a genuinely teachable discipline or a description of judgement that cannot be transferred at all. Nobody has yet replicated the results using them, which is not proof either way but is worth knowing.

“The big money is not in the buying and the selling, but in the waiting.”

Charlie Munger

Background

Omaha, like Buffett, and closer than that: he worked in Buffett's grandfather's grocery store as a teenager without the two ever meeting. Army Air Corps meteorology took him through Caltech; he then talked his way into Harvard Law without an undergraduate degree and graduated near the top. He practised law in Los Angeles and co-founded the firm still called Munger, Tolles & Olson in 1962 — and in the same year began running an investment partnership, because Buffett had told him law was a fine hobby but a poor business.

He was, in his own telling, made by loss rather than by success: an infant son died of leukaemia, a divorce left him close to broke, and a botched cataract operation cost him an eye. He rarely mentioned any of it in a market context, which is its own kind of lesson.

Style, and how it evolved

The unusual thing about Munger is how little his method changed. He arrived at quality early and stayed there while Buffett caught up.

Concentration to a degree almost nobody defends. He said publicly that three securities were plenty, and that a well-off person needing more than that was doing something wrong. His own partnership routinely ran a handful of positions.

The latticework. Take the genuinely important ideas from every major discipline — psychology, physics, biology, mathematics — and hold them together, on the argument that a man with only one model will bend every problem to fit it. Its most concrete output is his list of the standard causes of human misjudgement, which is a checklist rather than a theory and is the most usable thing he produced.

Invert. Instead of asking how a thing succeeds, ask what would destroy it, and avoid that. He applied it to careers and marriages as readily as to businesses.

The evolution, such as it is, is late and geographic: he backed Li Lu, and through him took Berkshire into BYD in China — a position outside his stated circle of competence, made on a judgement about a person.

Performance

1840186018801900192019401960198020002020192420231962 Two firms at once1972 Argues for See's1973 Down by half1975 Closes the partnership1978 Berkshire vice-chairman2008 BYD

paid offa decisiona losswalked awaythe lifeshaded columns are the crashes — hover any mark

The Munger partnership, 1962-1975: about 19.8% a year against roughly 5% for the Dow. Buffett published the figures in "The Superinvestors of Graham-and-Doddsville" in 1984, which is why they are checkable at all.

The number that matters more is the shape. In 1973 the partnership fell about 31%, and in 1974 about 31% again — a cumulative drawdown of more than half, in a fund of a few concentrated positions. It recovered strongly in 1975 and he closed it anyway.

Year
1962Founds the law firm and the partnership in the same year
1972Argues Buffett into See's Candies
1973-74Two consecutive years down roughly 31%
1975Closes the partnership after recovering
1978Becomes vice-chairman of Berkshire Hathaway
2008Backs Li Lu's case for BYD
2023Dies five weeks short of 100, still chairing Daily Journal

✓ documented · ○ rests on secondary accounts rather than a filing

Case studies

1972 — See's Candies, from the other side. Buffett's account is that he had to be dragged. Munger's argument was that a business able to raise prices annually without losing customers was worth several times book value and that the Graham framework simply had no way to price it. The mechanism: he was not arguing about See's. He was arguing that the measuring instrument was wrong. ✓

1973-74 — the drawdown. The method's real cost, and the reason it is not advice. Concentrated, unleveraged, correct in the long run, and down by more than half over two years with clients watching. He has said the losses did not disturb him personally, which may be true and is not the point: he closed the partnership shortly afterwards and never ran outside money that way again. ✓

2008 — BYD. Li Lu brought him a Chinese battery and car manufacturer; Munger backed it and pushed it to Berkshire, which paid $232m for around 10% and watched it become a multi-billion-dollar position. Note the tension: an investor famous for staying inside a narrow circle of competence made one of his best late calls on an unfamiliar industry in an unfamiliar country, on the strength of his judgement of one person. ✓

The other side of the record

A record this good is where scepticism is most worth spending, so:

"Mental models" is under-specified. There is no list with thresholds, no sequence, and no way to be wrong. A latticework that can only be applied in hindsight is a description of good judgement rather than a route to it — and the absence of anyone who has replicated his results by studying it is a real fact about the idea.

The attribution problem is severe. Almost everything credited to him comes through Berkshire, where Buffett made the decisions and signed the letters. His independently verifiable record is thirteen years long and ended in a drawdown of more than half.

His concentration is indefensible without his circumstances. Three positions is survivable if you are a wealthy lawyer with no clients who can leave and a partner underwriting your temperament. It is not general advice, and he was not always careful to say so.

Late-life certainty cut against his own rules. The confident pronouncements on China, on cryptocurrency, on whole industries he had not studied sat awkwardly beside a doctrine built on knowing the edge of your competence.

The aphorisms travel better than the thinking. "Invert" and "the big money is in the waiting" are quoted constantly and cost nothing to repeat, which is exactly the failure mode of a method delivered mainly through one-liners.

Key lessons

  • Invert. Ask what would destroy the thing, and avoid that. It is the cheapest analytical move available and almost nobody makes it first.
  • The standard has to be moveable. His decisive contribution was not a stock. It was arguing that the framework being used to judge stocks was wrong, which is a much harder thing to notice from inside it.
  • The waiting is the work. Most of the return comes from positions held far longer than is comfortable, and the discomfort is the price rather than a signal.
  • Know the standard ways people fool themselves. Incentive-caused bias, commitment and consistency, social proof, deprival super-reaction. A checklist beats introspection.
  • Say no quickly. The "too hard" pile is a real category, and putting things in it fast is most of what preserves attention for the few decisions that matter.

Reading and links

  • Poor Charlie's Almanack — the collected talks. Not a method and not mostly about investing.
  • The Psychology of Human Misjudgment — the 1995 Harvard talk, and the most directly usable thing he ever produced. Free.
  • Damn Right! — Janet Lowe. The biography.
  • The Superinvestors of Graham-and-Doddsville — Buffett, 1984. Where the partnership figures on this page come from.
  • Daily Journal annual meeting transcripts — the late-life Munger, unedited.

Marked ✓ where the figure is documented and ○ where it rests on secondary accounts rather than a filing. This is a profile of an investor, not a view on any security.


Primary sources

Go to the thing itself. These are the subject’s own publications or an institution’s own site. No bookseller links, and no referral arrangements — a reading list that earns per click is not a reading list.

  • Daily JournalHe chaired it to the end; the annual meetings are the late-life Munger, unedited.

Profiles of investors, not views on any security, and not personal advice. Figures are marked ✓ where they are documented and ○ where they rest on secondary or private accounts — investing biography is heavily mythologised and the well-known numbers drift with each retelling. Capital is at risk.

Corrections and right of reply. Where a criticism is made of a named person it is stated as a specific measure over a stated period, attributed to its source, and separated from opinion. Assessments are opinion, honestly held, on facts believed accurate at the date shown. If anyone profiled here — or anyone acting for them — believes a fact is wrong, it will be corrected promptly and visibly, and a reply will be published alongside it on request.

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