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

Trendingnow

1

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

2

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’: 

3

While Trump insisted the Iran war would end ‘soon,’ an account in his name was buying millions in oil, defense, and gold

1

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

2

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’: 

3

While Trump insisted the Iran war would end ‘soon,’ an account in his name was buying millions in oil, defense, and gold
Big Techtech stocks

U.S. tech stocks slide after Altman warns of ‘bubble’ in AI and MIT study doubts the hype

By
Beatrice Nolan
Beatrice Nolan
Tech Reporter
Down Arrow Button Icon
By
Beatrice Nolan
Beatrice Nolan
Tech Reporter
Down Arrow Button Icon
August 20, 2025, 9:20 AM ET
Sam Altman speaking into a mic.
OpenAI CEO Sam AltmanChip Somodevilla—Getty Images
  • Investor enthusiasm for artificial intelligence wavered Tuesday as major tech stocks sold off. Nvidia dropped 3.5% and Palantir nearly 10% after an MIT study claimed 95% of companies see no returns from generative AI, while OpenAI’s Sam Altman warned of a potential bubble. The Nasdaq declined more than 1.2% this morning.

Investors’ long-running enthusiasm for artificial intelligence showed signs of faltering late Tuesday and early Wednesday morning as tech stocks tumbled. The tech-heavy Nasdaq declined more than 1.2% this morning.

Recommended Video

Nvidia, fresh off becoming the world’s first $4 trillion company, sank 3.5%, while Palantir slid nearly 10%. The selloff appeared to be sparked in part by an MIT report that claimed 95% of companies investing in generative AI are seeing no returns, and was potentially deepened by earlier comments from OpenAI’s Sam Altman suggesting investors may be caught in an AI bubble. 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.

And while the MIT study attributed failures to corporate “learning gaps” and flawed integration rather than actual AI model quality, the market reaction highlights growing concerns about AI’s commercial viability.

The Nasdaq logged its steepest drop since August, and the rout quickly spread overseas. Korea’s SK Hynix, one of Nvidia’s key suppliers, lost 2.9%, while chip giant TSMC slipped 4.2%. SoftBank, long bullish on AI, cratered more than 7%. However, Alibaba and Tencent barely dipped, and China’s chipmaking champion SMIC even popped 3%.

“Tech stocks were under pressure yesterday, led by AI poster child stocks Palantir and Nvidia as investors worry the tech rally is due for a pullback/correction with the constant valuation arguments front and center,” Wedbush’s Dan Ives wrote in a note on Tuesday. “We are still in the early days of the AI revolution as the use cases are just starting to massively expand as more companies recognize the value creation being driven by a handful of tech companies led by the Godfather of AI, Jensen [Huang], and Nvidia.”

Concerns that investment in AI is racing ahead of sustainable growth are not new. High-profile figures, including Alibaba cofounder Joe Tsai and Bridgewater Associates founder Ray Dalio, have cautioned against the pace of the boom.

Dalio has also likened today’s Wall Street cycle to the run-up to the dotcom crash of the late 1990s. “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,” he told the Financial Times earlier this year.

Others see the risks as even greater. Apollo Global Management chief economist Torsten Slok argued last month that the AI surge could eclipse the internet bubble of the 1990s, pointing out that the 10 largest companies in the S&P 500 are now more overvalued relative to fundamentals than they were at the height 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 Big Tech

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 Big Tech

Google’s I/O conference showed how the company is being completely rebuilt for AI—for better or for worse
Big TechGoogle
Google’s I/O conference showed how the company is being completely rebuilt for AI—for better or for worse
By Alexei Oreskovic and Sharon GoldmanMay 19, 2026
7 hours ago
grantham
Big TechMarkets
‘Blood in the streets’: Legendary investor Jeremy Grantham pulls back the curtain on the AI wars to reveal a ‘brutal, competitive world’
By Nick LichtenbergMay 19, 2026
13 hours ago
‘This is what the consumer wants’: A new lawsuit about PFAS and other ‘forever chemicals’ is heating up the cookware industry
Big TechLawsuit
‘This is what the consumer wants’: A new lawsuit about PFAS and other ‘forever chemicals’ is heating up the cookware industry
By Catherina GioinoMay 19, 2026
14 hours ago
Parag Agrawal speaking onstage.
Big TechAI agents
Parag Agrawal’s AI startup wants to pay publishers when AI agents use their work
By Beatrice NolanMay 19, 2026
18 hours ago
Don’t hold your breath for the great AI job reshuffle, says Goldman Sachs—there’s little evidence of ‘too many coders and not enough plumbers’
InvestingMarkets
Don’t hold your breath for the great AI job reshuffle, says Goldman Sachs—there’s little evidence of ‘too many coders and not enough plumbers’
By Eleanor PringleMay 19, 2026
18 hours ago
Travelers walk past an Alibaba Cloud advertisement in China
AITerm Sheet
DeepSeek and China’s AI boom are increasingly powered by state money
By Lily Mae LazarusMay 19, 2026
19 hours ago

Most Popular

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
7 days ago
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
8 hours ago
While Trump insisted the Iran war would end ‘soon,’ an account in his name was buying millions in oil, defense, and gold
Economy
While Trump insisted the Iran war would end ‘soon,’ an account in his name was buying millions in oil, defense, and gold
By Eva RoytburgMay 18, 2026
1 day 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
1 day 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
16 hours ago
Current price of silver as of Monday, May 18, 2026
Personal Finance
Current price of silver as of Monday, May 18, 2026
By Joseph HostetlerMay 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.