Bill Ackman: People are Going to Lose a Lot of Money

Guest
Bill Ackman
Read time
~5 min
Uploaded
29 Sept 2026
Duration
1:17:27
Views
1.2M
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KEYPOINTS

  • 01

    AI is the most transformational technology of our lifetimes, with bubble-like pockets—especially private venture.

    Ackman saw a company that wasn’t raising get preempted with $50M at a $400M valuation, then raise another $50M at $1B two weeks later, and a Series A at $5B pre-money. Bubbles form when money is being made, FOMO pulls more capital into the same trade, and overvaluation follows. He expects ‘some form of a blow-up, a pretty high-profile one’ that forces a reset.

  • 02

    Founders should raise while capital is cheap but spend it as if it were their own.

    He recalls a Barron’s piece late in the dot-com bubble listing how many months of cash each internet company had left—published roughly a week before the crash. Companies that take $50–100M often abandon bootstrapping discipline and assume markets will always reopen. Those with years of runway survive; those needing money in three months die.

  • 03

    The core investing task is judging disruption risk, and AI has massively raised it.

    A business is worth the present value of its lifetime cash, so you must predict it 10–30 years out; Pershing tests holdings by asking whether they’d be happy owning them if the market shut for a decade. Even Buffett failed to foresee internet disruption (Wikipedia vs World Book). With AI ‘all of us are guaranteed to look foolish’ on some company. Software updates of consequence now arrive in days, not years.

  • 04

    AI efficiency gains don’t automatically become profit—pricing power decides who keeps them.

    Cognition can rewrite banks’ legacy COBOL in days instead of months, cutting the cost of running big institutions. But if every competitor adopts the same tools, savings may pass to customers; money is a commodity, so banks may not keep the margin. Infrastructure players like Brookfield (power, data centres) look like clear winners given ‘effectively infinite demand for compute.’

  • 05

    AI is a research aid, not an edge—Pershing’s best returns came from things nobody had done before.

    When everyone has the same AI, it’s hard to differentiate; AI largely reviews what already happened. His biggest wins—credit default swaps before COVID, buying a bankrupt company’s stock, shorting AAA-rated credit before the financial crisis—couldn’t have come from a model. What remains human is outside-the-box thinking and insight from the facts.

  • 06

    The investment process: a ‘library’ of great companies, then wait for price.

    They follow the best businesses for years and shelve them when a 35x multiple can’t deliver their 20%+ target, then strike on dislocations—COVID, or the ‘SaaS-apocalypse’ that let them buy Microsoft. Two analysts read filings and call transcripts, use expert networks, former employees and competitors, build a model and present; Ackman and the CIO do an independent lighter pass; five team members who haven’t done the work stress-test it.

  • 07

    After a large loss around 2015–16, principles were literally engraved on a stone tablet.

    The checklist: simple, predictable, free-cash-flow-generative, large-cap, liquid companies with wide moats and top management—or a replacement CEO in mind. Plus asymmetric macro bets where a contrarian view can be expressed with a large payoff relative to capital. And an aversion to short-selling: ‘asymmetry in reverse,’ with infinite loss and finite gain.

  • 08

    Permanent capital is the underrated Berkshire advantage Pershing has copied.

    Charlie Munger told him Berkshire’s most underrated edge was almost never being forced into decisions by circumstances. Hedge funds lose money when they do well (allocators trim) and when they do badly. Ackman blames his biggest mistake on being on the road fundraising. Pershing now runs only listed, permanent vehicles with large employee stakes; compounding near historic rates, he says, implies about $1 trillion in 20 years.

  • 09

    Howard Hughes is being turned into a ‘modern-day Berkshire Hathaway.’

    Pershing owns 47%. Its master-planned communities—like The Woodlands, a Houston city of ~150,000—self-liquidate by selling land to homebuilders, plus Hawaii condos ($4B under contract) and ~$300M of net operating income. Rather than reinvest in more real estate, cash will go into Vantage, a specialty insurer with a newly recruited team. Float sits in short-term Treasuries; surplus goes into common stocks. Profitable underwriting plus strong asset returns can yield 20%+; the mix could shift from ~70% real estate to 70–75% insurance in five years.

  • 10

    In venture you bet on the person; in public markets on the business.

    Dominant public companies can survive a CEO swap; a startup without its founder is probably a write-off. The original idea often fails, so what matters is the founder’s ability to navigate roadblocks. He judges CEOs on passion, capability, energy and character and believes he can assess that in about an hour.

EXAMPLES

  • 01

    Lucy’s brain haemorrhage: 19 hours of pressure before surgery.

    An undiagnosed arteriovenous malformation burst around 9am, per her Oura ring. Her sister found her face-down only after she missed a luggage pickup for a wedding in Abu Dhabi. Surgeons removed about 40% of her skull; Ackman later learned they normally don’t operate after five hours. She woke unable to walk, speak or see, now produces about 15 of 17 vowel sounds and is regaining walking. He ran two Pershing IPOs from Room 1107 at Mount Sinai—45-minute Zooms, 15 minutes with her.

  • 02

    The brain-recovery institute bought in 60 days.

    Instead of a 10-year hospital redevelopment, he bought a vacant biotech building at 65th and 11th Avenue and contracted for the full 3.4-acre site. Rehab fails because surgeons are paid per operation, insurers may cover only six weeks, and many patients end up in nursing homes and die of pneumonia within months. A great speech therapist costs ~$500/hour; AI could fill the gap.

  • 03

    Netflix: sold in weeks, bought back years later.

    Management told Pershing they’d never run ads; three or four weeks later, after another subscriber miss, they announced an ad tier. Ackman exited because the range of outcomes had widened, took the tax loss and bought Alphabet. Netflix executed brilliantly and won the streaming wars, but the multiple got rich—until the stock halved again and he rebought.

  • 04

    The Herbalife short and the ‘squeeze Bill’ trade.

    Convinced it was a pyramid scheme hurting disadvantaged people, Pershing shorted and sent analysis to the FTC, but underestimated market dynamics when Carl Icahn bought in. Other funds tried to squeeze them. He hasn’t made an activist investment since 2016.

  • 05

    Coupang: the idea he hated became his best venture bet.

    In 2009 Bom Kim pitched a ‘Groupon of South Korea,’ a model Ackman disliked, but he backed the founder and Korea’s internet potential. Kim built the Amazon of South Korea instead.

OTHER RELEVANT

  • 01

    For most people: index funds, start young, don’t hoard cash.

    Active investing requires real time and homework. Otherwise index funds have beaten most active managers; start early and don’t sit in cash because the market looks expensive.

  • 02

    When new facts break the thesis, either buy much more or exit.

    Netflix is his template: decide whether information is immaterial (buy more at the lower price) or thesis-breaking (sell and redeploy). You needn’t win it back in the same stock.

  • 03

    Protect a daily focus ritual.

    Tennis most mornings is his meditation—fully absorbed in the incoming ball—plus sleep and family. He meditated during his divorce and admits he should find 20 minutes a day again.

  • 04

    Use AI to double-check medical decisions.

    He leaned heavily on ‘Dr. Claude’ during Lucy’s care and thinks every doctor should check their work with an AI.