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

Wall Street isn’t worried about an AI bubble. Sam Altman is

By
Beatrice Nolan
Beatrice Nolan
Tech Reporter
Down Arrow Button Icon
By
Beatrice Nolan
Beatrice Nolan
Tech Reporter
Down Arrow Button Icon
August 19, 2025, 7:32 AM ET
Sam Altman speaking into a mic in front of the US flag.
Wall Street analysts are confident the artificial intelligence boom still has room to run. Al Drago—Bloomberg/Getty Images
  • Wall Street is feeling confident about the AI boom, even as OpenAI CEO Sam Altman cautions that some investors could be “burnt” amid soaring valuations. Major tech firms, including Microsoft, Amazon, Alphabet, and Meta, continue to increase capital spending to meet growing AI demand, while analysts like Wedbush’s Dan Ives and Treasury Partners’ Richard Saperstein emphasize the long-term potential.

Wall Street analysts are confident the artificial intelligence boom still has room to run. Even if Sam Altman, the OpenAI chief executive at the center of it all, appears less confident.

Speaking to reporters over dinner late last week, Altman drew a parallel between today’s AI frenzy and the 1990s dotcom bubble, when internet company valuations spiked dramatically before crashing.

“When bubbles happen, smart people get overexcited about a kernel of truth,” Altman said, in comments reported by The Verge. “If you look at most of the bubbles in history, like the tech bubble, there was a real thing. Tech was really important. The internet was a really big deal. People got overexcited.”

He noted some startup valuations for companies raising hundreds of millions of dollars with only a staff of three were “insane.”

“Are we in a phase where investors as a whole are overexcited about AI? My opinion is yes,” he said. “Is AI the most important thing to happen in a very long time? My opinion is also yes.”

Altman warned that some investors are likely to get “very burnt” as some of the hype unwinds, but maintained that the long-term value created by artificial intelligence will outweigh short-term losses. He also repeated the word “bubble” three times in 15 seconds, joking that the comments were likely to become a headline.

Wedbush’s Dan Ives, however, was undeterred by Altman’s slightly tepid tone. He told Fortune that the “AI revolution will fuel a tech bull market for the next two to three years at least.

“This is trillions being spent in the build-out of this fourth industrial revolution. There could be froth in certain areas of the private market for AI vendors, but ultimately, we do not see this as a bubble. This is a 1996 moment with a lot more room to go, not a 1999 moment in our view,” he said in an email.

Richard Saperstein, chief investment officer at Treasury Partners, also shrugged off concerns, noting that large-cap technology stocks remain the market’s driving force.

In a Monday note reported by Barron’s, he wrote that big tech companies “have led the market higher and will continue to dominate market performance,” citing expectations for continued earnings growth, strong reinvestment of cash flows, and the expansion of their global reach.

Saperstein advised investors to remain fully invested in U.S. equities, with a particular focus on large-cap technology names. He pointed to structural tailwinds, including deregulation, onshoring, and favorable treatment of capital expenditures, that he believes will support both corporate performance and broader economic growth in the years ahead.

No sign of a spending slowdown

Investors have had a reason to cheer in recent weeks, as major tech companies reported earnings that exceeded expectations. Microsoft, Alphabet, and Meta all posted strong growth and showed no signs of pulling back on AI.

The largest technology companies, including Microsoft, Amazon, Alphabet, and Meta, have all increased their capital expenditure forecasts to meet rising demand for artificial intelligence. Altman’s OpenAI is no different.

“You should expect OpenAI to spend trillions of dollars on data center construction in the not very distant future,” Altman said, in comments reported by The Verge. “And you should expect a bunch of economists wringing their hands, saying, ‘This is so crazy, it’s so reckless,’ and we’ll just be like, ‘You know what? Let us do our thing.’”

As AI spending soars, there has been simmering concern that investment in AI may be outpacing sustainable growth. Industry figures, including Alibaba cofounder Joe Tsai and Bridgewater Associates founder Ray Dalio, have all voiced concerns about the trend.

Earlier this year, Dalio warned that the current cycle on Wall Street appeared to be “very similar” to that seen before the dotcom bust in 1998 and 1999.

“There’s a major new technology that certainly will change the world and be successful. But some people are confusing that with the investments being successful,” Dalio told the Financial Times.

In a report last month, Apollo Global Management chief economist Torsten Slok went further, arguing that the current AI boom may surpass the internet bubble of the 1990s. He noted that the 10 largest companies in the S&P 500 are now more overvalued relative to fundamentals than during the peak of the dotcom era.

In 2001, Fortune first convened “The Smartest People We Know,” bringing together CEOs and founders, builders and investors, thinkers and doers. Since then, Fortune Brainstorm Tech has been the place where bold ideas collide. From June 8–10, we will return to Aspen—where it all began—to mark 25 years of Brainstorm. Register now.
About the Author
By Beatrice NolanTech Reporter
Twitter icon

Beatrice Nolan is a tech reporter on Fortune’s AI team, covering artificial intelligence and emerging technologies and their impact on work, industry, and culture. She's based in Fortune's London office and holds a bachelor’s degree in English from the University of York. You can reach her securely via Signal at beatricenolan.08

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
  • Future 50
  • World’s Most Admired Companies
  • See All Rankings
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
  • Editorial Calendar
  • Press Center
  • Work At Fortune
  • Diversity And Inclusion
  • Terms And Conditions
  • Site Map
  • About Us
  • Editorial Calendar
  • Press Center
  • Work At Fortune
  • Diversity And Inclusion
  • Terms And Conditions
  • Site Map
  • Facebook icon
  • Twitter icon
  • LinkedIn icon
  • Instagram icon
  • Pinterest icon

Latest in AI

mueller
CommentaryEntrepreneurship
I grew up in a family of entrepreneurs. Here’s what I had to unlearn to build a $1 billion business
By Samuel MuellerApril 12, 2026
53 minutes ago
grantham
Investingbubble
Legendary investor says the AI boom masks a deeper crisis: Falling sperm counts, shrinking populations, and vanishing resources
By Nick LichtenbergApril 12, 2026
53 minutes ago
These startups are racing to make AI safe for the Pentagon’s most closely guarded secrets
AIDefense
These startups are racing to make AI safe for the Pentagon’s most closely guarded secrets
By Erik GermanApril 11, 2026
1 day ago
karp
Future of Workpalantir
Palantir CEO says AI ‘will destroy’ humanities jobs but there will be ‘more than enough jobs’ for people with vocational training
By Jacqueline MunisApril 11, 2026
1 day ago
A Starbucks barista stands behind a cash register.
RetailFood and drink
Starbucks’ game plan to roll out AI chatbots at cafés could serve as a ‘litmus test’ for the industry, analyst says
By Sasha RogelbergApril 11, 2026
1 day ago
dalmation
AIHealth
Man’s best friend may soon live a little longer thanks to a new pill promising to extend your pup’s lifespan
By Catherina GioinoApril 11, 2026
1 day ago

Most Popular

'This is the last warning.' Iran threatens U.S. warships after they throw down the gauntlet for winner-take-all Strait of Hormuz
Politics
'This is the last warning.' Iran threatens U.S. warships after they throw down the gauntlet for winner-take-all Strait of Hormuz
By Fortune EditorsApril 11, 2026
14 hours ago
Palantir CEO says AI ‘will destroy’ humanities jobs but there will be ‘more than enough jobs’ for people with vocational training
Future of Work
Palantir CEO says AI ‘will destroy’ humanities jobs but there will be ‘more than enough jobs’ for people with vocational training
By Fortune EditorsApril 11, 2026
1 day ago
The 'affordability economy' has created a housing market nobody predicted: Prices collapsing in the Sun Belt, soaring in the Rust Belt
Real Estate
The 'affordability economy' has created a housing market nobody predicted: Prices collapsing in the Sun Belt, soaring in the Rust Belt
By Fortune EditorsApril 11, 2026
1 day ago
Warren Buffett says 'accumulating great amounts of money' doesn’t achieve greatness—He still lives in a $31,500 Nebraska home and clipped coupons
Success
Warren Buffett says 'accumulating great amounts of money' doesn’t achieve greatness—He still lives in a $31,500 Nebraska home and clipped coupons
By Fortune EditorsApril 11, 2026
1 day ago
Navy tests Hormuz blockade as expert says U.S. military prepares for round 2 and could degrade Iran's hold over the strait to a 'manageable level'
Politics
Navy tests Hormuz blockade as expert says U.S. military prepares for round 2 and could degrade Iran's hold over the strait to a 'manageable level'
By Fortune EditorsApril 11, 2026
19 hours ago
Scottie Scheffler joined Tiger Woods and Rory McIlroy in golf's $100M club—and donated his entire Ryder Cup stipend to charity
Success
Scottie Scheffler joined Tiger Woods and Rory McIlroy in golf's $100M club—and donated his entire Ryder Cup stipend to charity
By Fortune EditorsApril 10, 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.