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Bill Ackman

Bill Ackman

@bill-ackman · 22 positions · On ppll ↗

Founder and chief executive of Pershing Square Capital Management, the activist investment firm he started in 2004.

Bill Ackman did not write this page.

We collected these quotes from things they published elsewhere, and every quote links to where it was said. They have no account here and have not endorsed this site. Quotes are word for word; the short line under each one is our own restatement, not their wording. Their own site. Is this you? Claim it or ask us to remove it. Or tell us what is wrong here.

8 of Bill Ackman's claims fit 5 mental models. Most often: Incentives, Margin of safety, Play long games.

Models they name

Their own words name the idea.

Incentives

Look at what people are rewarded for; it explains more behaviour than what they say, your own included.

Used by 85 others

Incentives drive all human behaviour, which makes a management team's incentives central to valuing a company.

  1. Bill Ackman Founder and chief executive of Pershing Square Capital Management So as I like to say, incentives drive all human behavior and that certainly applies in the business world. So understanding the people and what drives them, and what the actual financial and other incentives of a business, are very important part of the analysis for investing in a company. Bill Ackman: Investing, Financial Battles, Harvard, DEI, X & Free Speech | Lex Fridman Podcast #413youtube.com · 20 Feb 2024 · 0:32:42 into the videoAll korrents from this video
    So as I like to say, incentives drive all human behavior and that certainly applies in the business world. So understanding the people and what drives them, and what the actual financial and other incentives of a business, are very important part of the analysis for investing in a company.

Venture boards govern badly because a VC director's interest in winning the next deal outweighs their interest in this company.

  1. Bill Ackman Founder and chief executive of Pershing Square Capital Management And oftentimes it's more important to them to have the public perception that they're good directors so they get the next best deal. If they have a reputation for taking on management too aggressively, word will get out in the small community of founders and they'll miss the next Google. Bill Ackman: Investing, Financial Battles, Harvard, DEI, X & Free Speech | Lex Fridman Podcast #413youtube.com · 20 Feb 2024 · 1:22:08 into the videoAll korrents from this video
    And oftentimes it's more important to them to have the public perception that they're good directors so they get the next best deal. If they have a reputation for taking on management too aggressively, word will get out in the small community of founders and they'll miss the next Google.

American defamation law protects the publisher rather than the person a story harms, and the incentives that follow are all wrong.

  1. Bill Ackman Founder and chief executive of Pershing Square Capital Management The problem is the defamation law in the US is so favorable to the publisher, to the media, and so unfavorable to the victim. And the incentives are all wrong. Bill Ackman: Investing, Financial Battles, Harvard, DEI, X & Free Speech | Lex Fridman Podcast #413youtube.com · 20 Feb 2024 · 3:04:38 into the videoAll korrents from this video
    The problem is the defamation law in the US is so favorable to the publisher, to the media, and so unfavorable to the victim. And the incentives are all wrong.

Moats

What protects a business is whatever a rival cannot copy, and that is rarely the software.

Used by 10 others

Judging how wide a company's moat is is the hardest thing an investor does, and this is the most disruptable period in history.

  1. Bill Ackman Founder and chief executive of Pershing Square Capital Management The most difficult analysis to do as an investor is that, is kind of figuring out how wide is the moat, how much at risk is the business to disruption? And we're in, I would say, the greatest period of disruptability in history. Bill Ackman: Investing, Financial Battles, Harvard, DEI, X & Free Speech | Lex Fridman Podcast #413youtube.com · 20 Feb 2024 · 0:19:04 into the videoAll korrents from this video
    The most difficult analysis to do as an investor is that, is kind of figuring out how wide is the moat, how much at risk is the business to disruption? And we're in, I would say, the greatest period of disruptability in history.

Models we see in what they say

Our reading: their claim applies the idea without naming it. The claim is theirs; filing it here is ours.

Margin of safety

Leave room for being wrong, because sometimes you will be.

Used by 28 others

A margin of safety means paying a discount deep enough that being wrong about what a company is worth still leaves you whole.

  1. Bill Ackman Founder and chief executive of Pershing Square Capital Management You want to buy a company at a price that if you're wrong about what you think it's worth and it turns out to be worth 30% less, you paid a deep enough discount to your estimate that you're still okay. A big part of investing is not losing money. Bill Ackman: Investing, Financial Battles, Harvard, DEI, X & Free Speech | Lex Fridman Podcast #413youtube.com · 20 Feb 2024 · 0:07:12 into the videoAll korrents from this video
    You want to buy a company at a price that if you're wrong about what you think it's worth and it turns out to be worth 30% less, you paid a deep enough discount to your estimate that you're still okay. A big part of investing is not losing money.

An investor who never borrows against their securities can afford to think, because no fall in price can force them to sell.

Play long games

  1. Bill Ackman Founder and chief executive of Pershing Square Capital Management So as long as you don't borrow against securities, you own really high quality businesses and it's not money that you need in the short term, then you can actually be thoughtful about it. Bill Ackman: Investing, Financial Battles, Harvard, DEI, X & Free Speech | Lex Fridman Podcast #413youtube.com · 20 Feb 2024 · 0:41:46 into the videoAll korrents from this video
    So as long as you don't borrow against securities, you own really high quality businesses and it's not money that you need in the short term, then you can actually be thoughtful about it.

Play long games

A longer horizon makes some problems solvable and some short-term wins look like what they are.

Used by 41 others

A large, respected owner on the board is what buys a CEO the time to make decisions that only pay off years later.

  1. Bill Ackman Founder and chief executive of Pershing Square Capital Management That large owner on the board can help buy the time necessary for management to behave in a longer term way. And that's, I think, good for all the shareholders. Bill Ackman: Investing, Financial Battles, Harvard, DEI, X & Free Speech | Lex Fridman Podcast #413youtube.com · 20 Feb 2024 · 0:54:19 into the videoAll korrents from this video
    That large owner on the board can help buy the time necessary for management to behave in a longer term way. And that's, I think, good for all the shareholders.

An investor who never borrows against their securities can afford to think, because no fall in price can force them to sell.

Margin of safety

  1. Bill Ackman Founder and chief executive of Pershing Square Capital Management So as long as you don't borrow against securities, you own really high quality businesses and it's not money that you need in the short term, then you can actually be thoughtful about it. Bill Ackman: Investing, Financial Battles, Harvard, DEI, X & Free Speech | Lex Fridman Podcast #413youtube.com · 20 Feb 2024 · 0:41:46 into the videoAll korrents from this video
    So as long as you don't borrow against securities, you own really high quality businesses and it's not money that you need in the short term, then you can actually be thoughtful about it.

S-curves and diminishing returns

Most growth slows as it matures; the question is whether the curve is flattening or something new is restocking it.

Used by 22 others

About a dozen holdings captures nearly all the benefit of diversification; going to fifty adds almost nothing.

  1. Bill Ackman Founder and chief executive of Pershing Square Capital Management I even recommend for individual investors to invest in a dozen companies, you don't get that much more benefit of diversification going from a dozen to 25 or even 50. Bill Ackman: Investing, Financial Battles, Harvard, DEI, X & Free Speech | Lex Fridman Podcast #413youtube.com · 20 Feb 2024 · 0:44:05 into the videoAll korrents from this video
    I even recommend for individual investors to invest in a dozen companies, you don't get that much more benefit of diversification going from a dozen to 25 or even 50.