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

There is a ‘bubble risk’ in the S&P 500, Deutsche Bank says: ‘We appear to be in uncharted territory’

Jim Edwards
By
Jim Edwards
Jim Edwards
Executive Editor, Global News
Down Arrow Button Icon
September 3, 2025, 7:26 AM ET
Photo: Young woman spending day outside in residential area in city.
Counter/Getty Images
  • U.S. stocks slid as the S&P 500 fell 0.69% and Nvidia dropped 1.95% yesterday. Analysts warn that outsize valuations in a few tech giants (especially Nvidia) have created a concentration risk in U.S. stocks reminiscent of past bubbles.

The S&P 500 lost 0.69% yesterday. Nvidia, however, lost more than twice that—down 1.95%. Additionally, the bond market is unhappy with long-term yields going up as investors lose faith in the credibility of governments who want their financing.

Recommended Video

It’s all looking a bit nervy.

That won’t be helped by a research note from Deutsche Bank today, which asks the question, “Are U.S. equities in a bubble?” The answer, according to analysts Jim Reid, Henry Allen, and Rajsekhar Bhattacharyya, is maybe.

Nvidia is a big part of the problem, they say. Its market cap is huge. Too huge?

“Nvidia’s market cap is now larger than every country’s entire listed stock exchange apart from the U.S., China, Japan, and India,” the trio wrote. That has a distorting effect on U.S. stocks because Nvidia and just four other stocks (Microsoft, Alphabet, Apple, and Amazon) compose 30% of the S&P 500’s entire value. For comparison, the concentration of the top five companies in the S&P during the dotcom bubble of 2000 was less than half that.

This chart shows just how weighted toward the top five stocks the market currently is:

The valuation of those stocks is so high that the U.S. market now dwarfs foreign markets in a way that it historically did not. “The U.S. is now nearly five times larger than China (in second) and around 20 times larger than Europe’s larger markets,” they said.

“This doesn’t automatically mean it’s a bubble, but we appear to be in uncharted territory, and likely means performance heavily depends on a handful of companies,” the Deutsche team said.

“We should note that, of [developed country] equity markets, only the U.S. could be considered a bubble risk. Other G7 equity markets currently have historically average valuations vs. earnings.”

What could possibly go wrong?

The labor market for one thing. The U.S. will publish a new job openings report today (the so-called JOLTS) and a new nonfarm payrolls number on Friday.

EY-Parthenon chief economist Gregory Daco forecasted in a note yesterday that he expects Friday’s employment number to be weak: “August’s employment report is likely to confirm that a marked slowdown in labor market conditions is underway, as business leaders—grappling with softer final demand, higher costs and interest rates, and elevated uncertainty—continue to restrain hiring.

“We anticipate another step down in job growth, with nonfarm payrolls expected to rise by just 40,000 in August, following a 73,000 increase in July. The unemployment rate is projected to edge higher to 4.3%—its highest level since October 2021.”

Buckle up. It’s going to be a bumpy ride. (Or to put it another way, the VIX fear index—which measures volatility—has been elevated in recent days and was up 5.46% yesterday.)

Here’s a snapshot of the markets globally this morning:

  • S&P 500 futures were up 0.49% this morning. The index closed down 0.69% in its last trading session.
  • STOXX Europe 600 was up 0.69% in early trading. 
  • The U.K.’s FTSE 100 was up 0.5% in early trading.
  • Japan’s Nikkei 225 was down 0.88%.
  • China’s CSI 300 was down 0.68%. 
  • The South Korea KOSPI was up 0.38%.
  • India’s Nifty 50 was up 0.55% before the end of the session.
  • Bitcoin rose to $110.9K
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
Jim Edwards
By Jim EdwardsExecutive Editor, Global News
LinkedIn iconTwitter icon

Jim Edwards is the executive editor for global news at Fortune. He was previously the editor-in-chief of Business Insider's news division and the founding editor of Business Insider UK. His investigative journalism has changed the law in two U.S. federal districts and two states. The U.S. Supreme Court cited his work on the death penalty in the concurrence to Baze v. Rees, the ruling on whether lethal injection is cruel or unusual. He also won the Neal award for an investigation of bribes and kickbacks on Madison Avenue.

See full bioRight Arrow Button Icon

Latest in Economy

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
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
  • Leadership
  • Success
  • Tech
  • Asia
  • Europe
  • Environment
  • Fortune Crypto
  • Health
  • Retail
  • Lifestyle
  • Politics
  • Newsletters
  • Magazine
  • Features
  • Commentary
  • Mpw
  • CEO Initiative
  • Conferences
  • Personal Finance
  • 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
About Us
  • About Us
  • Editorial Calendar
  • Press Center
  • Work At Fortune
  • Diversity And Inclusion
  • Terms And Conditions
  • Site Map

© 2025 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.


Most Popular

placeholder alt text
Success
'I had to take 60 meetings': Jeff Bezos says 'the hardest thing I've ever done' was raising the first million dollars of seed capital for Amazon
By Dave SmithDecember 15, 2025
21 hours ago
placeholder alt text
Success
Meetings are not work, says Southwest Airlines CEO—and he’s taking action, by blocking his calendar every afternoon from Wednesday to Friday 
By Preston ForeDecember 15, 2025
23 hours ago
placeholder alt text
Success
Sorry, six-figure earners: Elon Musk says that money will 'disappear' in the future as AI makes work (and salaries) irrelevant
By Orianna Rosa RoyleDecember 15, 2025
1 day ago
placeholder alt text
Personal Finance
Current price of silver as of Monday, December 15, 2025
By Joseph HostetlerDecember 15, 2025
1 day ago
placeholder alt text
AI
Deloitte's CTO on a stunning AI transformation stat: Companies are spending 93% on tech and only 7% on people
By Nick LichtenbergDecember 15, 2025
1 day ago
placeholder alt text
North America
Ford writes down $19.5 billion as it pivots electric Lighting line of vehicles
By Sasha RogelbergDecember 15, 2025
17 hours ago

Latest in Economy

Stephen Greene works a street corner hoping to land a job as a laborer or carpenter on June 3, 2011 in Pompano Beach, Florida.
EconomyJobs
Unemployment hits 4-year high as frozen jobs data shows recession risks getting ‘uncomfortably high,’ top economist Mark Zandi says
By Eva RoytburgDecember 16, 2025
9 minutes ago
President Trump has suggested some methods to rebalance America's finances.
Economynational debt
America’s $38 trillion national debt ‘exacerbates generational imbalances’ with Gen Z and Millennials paying the price, warns think tank
By Eleanor PringleDecember 16, 2025
3 hours ago
tree
North AmericaTariffs and trade
80% of American Christmas trees are fake. They’re also tariffed
By Dee-Ann Durbin and The Associated PressDecember 16, 2025
4 hours ago
China, EU
EuropeTariffs and trade
China slashes EU pork tariffs to 19.8% from 62.4%
By Elaine Kurtenbach and The Associated PressDecember 16, 2025
4 hours ago
Future of WorkEducation
The job market is so bad, people in their 40s are resorting to going back to school instead of looking for work
By Sydney LakeDecember 16, 2025
7 hours ago
Susan Monarez
PoliticsHealth
Gavin Newsom hires former CDC officials to work as public health consultants for state of California
By Sophie Austin and The Associated PressDecember 15, 2025
15 hours ago