• Home
  • Latest
  • Fortune 500
  • Finance
  • Tech
  • Leadership
  • Lifestyle
  • Rankings
  • Multimedia

Trendingnow

1

Microsoft AI chief gives it 18 months—for all white-collar work to be automated by AI

2

Former top Russian official admits the country is over Putin and can 'imagine a future without him' — even elites bail as Kremlin seizes their assets 

3

Meet the 20-year-old CEO who launched a company in high school to solve Gen Z's entry-level job crisis

1

Microsoft AI chief gives it 18 months—for all white-collar work to be automated by AI

2

Former top Russian official admits the country is over Putin and can 'imagine a future without him' — even elites bail as Kremlin seizes their assets 

3

Meet the 20-year-old CEO who launched a company in high school to solve Gen Z's entry-level job crisis
FinanceInvesting

Billionaire investor Bill Ackman says he’s shorting this one asset

By
Chloe Taylor
Chloe Taylor
Down Arrow Button Icon
By
Chloe Taylor
Chloe Taylor
Down Arrow Button Icon
August 3, 2023, 11:15 AM ET
Bill Ackman speaks during the WSJ D.Live global technology conference in Laguna Beach, California, on Tuesday, Oct. 17, 2017.
Bill Ackman, billionaire founder of Pershing Square, says he’s short on 30-year U.S. Treasuries. Patrick T. Fallon—Bloomberg/Getty Images

Inflation is unlikely to return to the Fed’s 2% target anytime soon, according to Bill Ackman—and the legendary investor is getting ready to cash in on what he says is an imminent repricing of long-term U.S. bonds as a result.

Recommended Video

In a Wednesday evening post on Twitter, now known as X, Ackman—who founded Pershing Square Capital Management in 2004 and also serves as its CEO—said he was preparing for a world where U.S. inflation lingered at around 3%.

He noted being “surprised” by the persistently low long-term U.S. rates despite sticky inflation, deglobalization, the energy transition, and increased worker bargaining power. He revealed being short on long-term Treasuries owing to concerns over the impact of persistently high inflation on debt supply, equities, and bond prices.

“If long-term inflation is 3% instead of 2% and history holds, then we could see the 30-year T yield = 3% + 0.5% (the real rate) + 2% (term premium), or 5.5%, and it can happen soon,” he said. “There are many times in history where the bond market reprices the long end of the curve in a matter of weeks, and this seems like one of those times.”

The current yield on a 30-year U.S. Treasury is approximately 4.3%, and it increased after Fitch downgraded the U.S. triple-A credit rating on Tuesday.

Rising Treasury yields push debt prices down, and they may rise further if the Federal Reserve tightens monetary policy owing to inflation hovering above the 2% target.

Although U.S. inflation cooled in June, it still remains at 3% for the 12th consecutive month.

Ackman added on Wednesday that from a supply and demand perspective, long-term Treasuries seemed to be overbought, which could put additional downward pressure on the price of bonds.

“With $32 trillion of debt and large deficits as far as the eye can see and higher [refinance] rates, an increasing supply of [Treasuries] is assured,” Ackman said. “When you couple new issuance with [quantitative tightening], it is hard to imagine how the market absorbs such a large increase in supply without materially higher rates.”

The U.S. Treasury is expected to issue more than $1 trillion in T-bills by the end of 2023, as the government looks to build its cash reserves following a last-minute deal to raise the debt ceiling.

Ackman said Wednesday that because of his outlook for the economy and markets, Pershing Square was “short in size” on 30-year U.S. Treasury bills.

The firm was doing this “first as a hedge on the impact of higher [long-term] rates on stocks, and second because we believe it is a high probability stand-alone bet,” the billionaire hedge funder explained.

“There are few macro investments that still offer reasonably probable asymmetric payoffs, and this is one of them,” he added. “We implement these hedges by purchasing options rather than shorting bonds outright. This makes it easier to sleep at night as it makes your downside finite. Our ‘sleep-at-night test’ is a critical risk management tool.”

Join us at the Fortune Workplace Innovation Summit May 19–20, 2026, in Atlanta. The next era of workplace innovation is here—and the old playbook is being rewritten. At this exclusive, high-energy event, the world’s most innovative leaders will convene to explore how AI, humanity, and strategy converge to redefine, again, the future of work. Register now.
About the Author
By Chloe Taylor
LinkedIn iconTwitter icon
See full bioRight Arrow Button Icon

Latest in Finance

Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025

Most Popular

Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Fortune Secondary Logo
Rankings
  • 100 Best Companies
  • Fortune 500
  • Global 500
  • Fortune 500 Europe
  • Most Powerful Women
  • World's Most Admired Companies
  • See All Rankings
  • Lists Calendar
Sections
  • Finance
  • Fortune Crypto
  • Features
  • Leadership
  • Health
  • Commentary
  • Success
  • Retail
  • Mpw
  • Tech
  • Lifestyle
  • CEO Initiative
  • Asia
  • Politics
  • Conferences
  • Europe
  • Newsletters
  • Personal Finance
  • Environment
  • Magazine
  • Education
Customer Support
  • Frequently Asked Questions
  • Customer Service Portal
  • Privacy Policy
  • Terms Of Use
  • Single Issues For Purchase
  • International Print
Commercial Services
  • Advertising
  • Fortune Brand Studio
  • Fortune Analytics
  • Fortune Conferences
  • Business Development
  • Group Subscriptions
About Us
  • About Us
  • Press Center
  • Work At Fortune
  • Terms And Conditions
  • Site Map
  • About Us
  • Press Center
  • Work At Fortune
  • Terms And Conditions
  • Site Map
  • Facebook icon
  • Twitter icon
  • LinkedIn icon
  • Instagram icon
  • Pinterest icon

Latest in Finance

Mary Moreland-Abbott Executive Vice President of Human Resources.
CommentaryRetirement
Gen X is the most indebted generation in America. Their employers can fix that
By Mary MorelandMay 17, 2026
4 minutes ago
Gen Z calls degrees ‘useless’—but 20 years of data tells a different story: graduates are still the least likely to be unemployed
Successunemployment
Gen Z calls degrees ‘useless’—but 20 years of data tells a different story: graduates are still the least likely to be unemployed
By Orianna Rosa RoyleMay 17, 2026
28 minutes ago
A 45,000-person labor strike at Samsung’s memory chip plants could throw a wrench into the AI boom
EconomySamsung
A 45,000-person labor strike at Samsung’s memory chip plants could throw a wrench into the AI boom
By Catherina GioinoMay 17, 2026
2 hours ago
Kevin Warsh, chairman of the US Federal Reserve nominee for US President Donald Trump, during a Senate Banking, Housing, and Urban Affairs Committee confirmation hearing in Washington, DC, US, on Tuesday, April 21, 2026.
BankingKevin Warsh
Wall Street is keeping a close eye on Kevin Warsh at the Fed. These are the red (and green) flags they’re watching for
By Eleanor PringleMay 17, 2026
3 hours ago
New NRG Energy CEO leans into growth with ‘bring your own power’ for the AI boom and affordability with ‘virtual power plants’
Energypower
New NRG Energy CEO leans into growth with ‘bring your own power’ for the AI boom and affordability with ‘virtual power plants’
By Jordan BlumMay 17, 2026
3 hours ago
U.S. allows Russia oil sales waiver to expire despite tight market
EnergyOil
U.S. allows Russia oil sales waiver to expire despite tight market
By Jennifer A. Dlouhy and BloombergMay 16, 2026
11 hours ago

Most Popular

Microsoft AI chief gives it 18 months—for all white-collar work to be automated by AI
AI
Microsoft AI chief gives it 18 months—for all white-collar work to be automated by AI
By Jake AngeloMay 16, 2026
22 hours ago
Former top Russian official admits the country is over Putin and can 'imagine a future without him' — even elites bail as Kremlin seizes their assets 
Politics
Former top Russian official admits the country is over Putin and can 'imagine a future without him' — even elites bail as Kremlin seizes their assets 
By Jason MaMay 16, 2026
12 hours ago
Meet the 20-year-old CEO who launched a company in high school to solve Gen Z's entry-level job crisis
Future of Work
Meet the 20-year-old CEO who launched a company in high school to solve Gen Z's entry-level job crisis
By Jake AngeloMay 16, 2026
1 day ago
The Bezos family just donated $100 million to help achieve one of Mayor Zohran Mamdani’s top campaign promises
Politics
The Bezos family just donated $100 million to help achieve one of Mayor Zohran Mamdani’s top campaign promises
By Jake AngeloMay 12, 2026
5 days ago
‘You’re not a hero, you’re a liability’: Shark Tank’s Kevin O’Leary warns Gen Z founders to stop glorifying hustle culture
Future of Work
‘You’re not a hero, you’re a liability’: Shark Tank’s Kevin O’Leary warns Gen Z founders to stop glorifying hustle culture
By Jacqueline MunisMay 16, 2026
22 hours ago
Oil markets could be a month away from the moment of truth. Brace for a 'non-linear' price spike and panic buying, analysts warn
Energy
Oil markets could be a month away from the moment of truth. Brace for a 'non-linear' price spike and panic buying, analysts warn
By Jason MaMay 16, 2026
15 hours ago

© 2026 Fortune Media IP Limited. All Rights Reserved. Use of this site constitutes acceptance of our Terms of Use and Privacy Policy | CA Notice at Collection and Privacy Notice | Do Not Sell/Share My Personal Information
FORTUNE is a trademark of Fortune Media IP Limited, registered in the U.S. and other countries. FORTUNE may receive compensation for some links to products and services on this website. Offers may be subject to change without notice.