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

Trendingnow

1

Bolt CEO says he let go of his entire HR team for creating problems that didn’t exist: ‘Those problems disappeared when I let them go’ 

2

The Bezos family just donated $100 million to help achieve one of Mayor Zohran Mamdani’s top campaign promises

3

Current price of oil as of May 19, 2026

1

Bolt CEO says he let go of his entire HR team for creating problems that didn’t exist: ‘Those problems disappeared when I let them go’ 

2

The Bezos family just donated $100 million to help achieve one of Mayor Zohran Mamdani’s top campaign promises

3

Current price of oil as of May 19, 2026
AI

Apollo’s chief economist warns the AI bubble is even worse than the 1999 dot-com bubble

By
Chris Morris
Chris Morris
Former Contributing Writer
Down Arrow Button Icon
By
Chris Morris
Chris Morris
Former Contributing Writer
Down Arrow Button Icon
July 17, 2025, 11:46 AM ET
Apollo Global Management chief economist Torsten Sløk
Torsten Sløk, chief economist of Apollo Management, during the Market Forum: FX in Focus event in New York, US, on Thursday, Sept. 7, 2023.Victor J. Blue / Bloomberg—Getty Images
  • Torsten Sløk, chief economist at Apollo Global Management, warns AI stocks are even more over-valued than dot-com stocks were in 1999. In an research note, he illustrated how shares of Nvidia, Microsoft and eight other companies are creating an even bigger bubble than we saw during the dot-com era. And that could cause serious market damage if and when it pops.

While there’s plenty of skepticism about artificial intelligence, the chief economist at Apollo Global Management is warning that the technology is so overblown it risks crashing the market worse than the dot-com bubble burst of 1999.

Torsten Sløk, in a recent research note, wrote “The difference between the IT bubble in the 1990s and the AI bubble today is that the top 10 companies in the S&P 500 today are more overvalued than they were in the 1990s.”

Put another way: Investors are betting so heavily on AI that the stock price of companies like Nvidia, Microsoft, Apple and others have become detached from their earnings. A chart Sløk included compared the 12-month forward price-to-earnings (P/E) ratios of the S&P’s top 10 companies to the rest of the index and the S&P 500 as a whole. And today’s bubble is even bigger than the one that marked the end of the dot-com era.

While the S&P has hit new records recently and is currently near an all-time high, Sløk argues the performance boost is due to the rise of the Top 10 stocks. Investors, he worries, are buying the hype and paying prices as if the promises and boasts of these firms (such as trillion-dollar savings and world-changing breakthroughs) are a certainty. The 1990s were a lesson that not every promise would or could become reality.

And even though many of those top companies are profitable, compared to the losses of many dot-com darlings, the fundamentals don’t justify the multiples.

Sløk has sounded other warnings about the economy. In June, he said he believed the U.S. was at a critical inflection point for stagflation, where the economy continues to grow, but inflation remains high. He blamed tariffs for that possibility.

Sløk’s not alone. Alibaba Group Chair Joe Tsai has warned U.S. AI stocks are in a bubble, as has longtime tech exec Tom Siebel.

The CEO-in-Chief speaks. Fortune sits down with President Trump on tariffs, the Intel stake, Boeing's record orders, and what the markets should expect next. Read the interview
About the Author
By Chris MorrisFormer Contributing Writer

Chris Morris is a former contributing writer at Fortune, covering everything from general business news to the video game and theme park industries.

See full bioRight Arrow Button Icon

Latest in AI

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 AI

Accenture exec says the consulting giant is hiring more entry-level workers out of college compared to last year
Future of WorkWorkplace Innovation Summit
Accenture exec says the consulting giant is hiring more entry-level workers out of college compared to last year
By Emma BurleighMay 20, 2026
18 minutes ago
microsoft
AIProductivity
America’s new AI map shows something surprising: ‘A lot of normal people are adopting AI’
By Nick LichtenbergMay 20, 2026
1 hour ago
trader
CommentarySoftware
The 50-year-old law that governed every software company just broke. Here’s what replaces it
By Martin Casado and Abhishek NagarajMay 20, 2026
2 hours ago
Exclusive: Circle cofounder raises $30 million for Series A ‘AI-native bank’ Catena Labs
CryptoVenture Capital
Exclusive: Circle cofounder raises $30 million for Series A ‘AI-native bank’ Catena Labs
By Ben WeissMay 20, 2026
3 hours ago
FJ Campbell, MD, is chief medical officer at Ardent Health.
CommentaryHealth
A doctor shortage is coming. AI could be the only realistic fix
By FJ CampbellMay 20, 2026
4 hours ago
Alex Israel crosses his arms
AITerm Sheet
How Metropolis built a $5 billion AI infrastructure company out of America’s parking problem
By Lily Mae LazarusMay 20, 2026
5 hours ago

Most Popular

Bolt CEO says he let go of his entire HR team for creating problems that didn’t exist: ‘Those problems disappeared when I let them go’ 
Workplace Culture
Bolt CEO says he let go of his entire HR team for creating problems that didn’t exist: ‘Those problems disappeared when I let them go’ 
By Preston ForeMay 19, 2026
18 hours 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
8 days ago
Current price of oil as of May 19, 2026
Personal Finance
Current price of oil as of May 19, 2026
By Joseph HostetlerMay 19, 2026
1 day ago
Meet a 21-year-old community college student who's going to China as the first American woman welder in the trades Olympics
Future of Work
Meet a 21-year-old community college student who's going to China as the first American woman welder in the trades Olympics
By Mike Householder and The Associated PressMay 17, 2026
3 days ago
Employers are quietly pausing 401(k) matches again. The last time this happened was the 2008 recession and Covid
Personal Finance
Employers are quietly pausing 401(k) matches again. The last time this happened was the 2008 recession and Covid
By Courtney Vinopal and HR BrewMay 18, 2026
2 days ago
Spirit Airlines apologizes to all the Americans who can't afford any summer vacation flights as it shuts down
Travel & Leisure
Spirit Airlines apologizes to all the Americans who can't afford any summer vacation flights as it shuts down
By Rio Yamat and The Associated PressMay 18, 2026
2 days 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.