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

Short-sellers reap $13 billion betting against small caps as A.I. enthusiasm creates ‘top-down set of winners’

By
Carmen Reinicke
Carmen Reinicke
,
Alexandra Semenova
Alexandra Semenova
, and
Bloomberg
Bloomberg
Down Arrow Button Icon
By
Carmen Reinicke
Carmen Reinicke
,
Alexandra Semenova
Alexandra Semenova
, and
Bloomberg
Bloomberg
Down Arrow Button Icon
September 10, 2023, 5:58 PM ET
CEO Jensen Huang's Nvidia is among the "top-down set of winners" created by the A.I. frenzy.
CEO Jensen Huang's Nvidia is among the "top-down set of winners" created by the A.I. frenzy.I-Hwa Cheng/Bloomberg via Getty Images

Short sellers are raking in profits by betting against a part of the US equity market overlooked by most investors: small-cap stocks.

The group has seen paper profits of nearly $13 billion this year by wagering on a drop in the prices of small-, micro- and nano-cap shares, according to an estimate by S3 Partners LLC based on the average amount of short positions in the market. That’s in stark contrast to the roughly $140 billion in losses from short sales of mid-, mega- and large-cap stocks, which rallied for much of the year as the economy defied gloomy forecasts, the Federal Reserve edged closer to ending its interest-rate hikes and breakthroughs in artificial intelligence triggered a stampede in tech stocks.

The difference underscores the gulf that opened up in the stock market as companies like Nvidia Corp., Meta Platforms Inc. and Tesla Inc. drove much of the gains. More than half of the stocks in the Russell 2000 — a gauge of smaller companies — have dropped this year, holding it to a 5% gain, far below the 16% jump in the S&P 500.

“So much of this year’s performance has been about AI enthusiasm, which disproportionately benefitted the largest tech stocks,” said Steve Sosnick, chief strategist at Interactive Brokers. “It’s been a top-down set of winners so far.”

The small-caps stocks joined in the equity-market rally from June through July. But they’ve been hit hardest during the recent pullback, with about $9.7 billion of short-sellers’ estimated profits emerging since August, according to S3’s data.

With the shares battered, investors withdrew $1.5 billion from funds focused on the segment last week, the most in nearly three months, according to Bank of America Corp. strategists, citing EPFR Global. By contrast, US large-cap stock funds pulled in $5.5 billion.

One reason for the underperformance is sector weightings that have curbed interest as investors focus heavily on particular industries, said Rob Haworth, a senior investment strategist at U.S. Bank Wealth Management. The group has little exposure to technology, the best-performing corner of the market this year, and heavier weightings in finance and energy, some of the worst laggards. Small companies are also the most heavily affected by economic slowdowns and tighter monetary policy.

“They also tend to be the companies that take the brunt of tighter credit conditions and tighter lending standards,” Haworth said. “I think that’s kind of created this environment that’s put a lot of pressure on small caps.”

Morgan Stanley’s Mike Wilson, who has been predicting a stock-market decline, has similarly warned investors to stay away from small-cap stocks, whose profit margins are more highly at risk of being eroded by inflation.

The bets against small cap stocks makes up less than 10% of all short selling, according to S3. And some strategists predict that small caps have room to rebound. Bank of America’s Jill Carey Hall, for example, has said segments of the market that have been pricing in the risk of a recession are most likely to outperform if the economy continues to grow.

Yet short sellers are still piling in. In the last 30 days, they have plowed $658 million into bets against small caps, an increase from the previous month, according to S3. The group has put the most money in bets against Archer Aviation Inc., Air Transport Services Group Inc, Alteryx Inc. and Sage Therapeutics Inc. in the last month, S3 data show.

The most profitable small-cap short trades so far this year are beaten-down regional banks. Bets against Lumen Technologies Inc., Foot Locker Inc. and Beam Therapeutics Inc. also paid off, according to S3.

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 Authors
By Carmen Reinicke
See full bioRight Arrow Button Icon
By Alexandra Semenova
See full bioRight Arrow Button Icon
By Bloomberg
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
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
  • Facebook icon
  • Twitter icon
  • LinkedIn icon
  • Instagram icon
  • Pinterest icon

Most Popular

placeholder alt text
Success
In 2026, many employers are ditching merit-based pay bumps in favor of ‘peanut butter raises’
By Emma BurleighFebruary 2, 2026
2 days ago
placeholder alt text
Cybersecurity
Top AI leaders are begging people not to use Moltbook, a social media platform for AI agents: It’s a ‘disaster waiting to happen’
By Eva RoytburgFebruary 2, 2026
2 days ago
placeholder alt text
Investing
Tech stocks go into free fall as it dawns on traders that AI has the ability to cut revenues across the board
By Jim EdwardsFebruary 4, 2026
12 hours ago
placeholder alt text
Economy
Trump may have shot himself in the foot at the Fed, as Powell could stay on while Miran resigns from White House post
By Eleanor PringleFebruary 4, 2026
8 hours ago
placeholder alt text
Politics
Meet the Palm Beach billionaire who paid $2 million for a private White House visit with Trump
By Tristan BoveFebruary 3, 2026
1 day ago
placeholder alt text
North America
Gates Foundation doubles down on foreign aid as U.S. government largely withdraws
By Thalia Beaty and The Associated PressFebruary 3, 2026
1 day 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.


Latest in Finance

broker
InvestingMarkets
S&P rings up 5th loss in 6 days as tech stocks drag index down, led by AMD’s 17.3% drop
By Stan Choe, Nick Lichtenberg and The Associated PressFebruary 4, 2026
1 hour ago
electricity
EnvironmentElectricity
Over a million people are losing power during a freezing snowstorm while data centers nearby guzzle electricity
By Nikki Luke, Conor Harrison and The ConversationFebruary 4, 2026
2 hours ago
Phone displaying quantum computing company IonQ's logo.
Big Techquantum computing
Short-seller claims IonQ, the biggest quantum computing company on the stock market, failed to disclose holes in its revenue
By Jeremy Kahn and Jim EdwardsFebruary 4, 2026
2 hours ago
altman
Startups & VentureMarkets
Scott Galloway predicts OpenAI could pull its IPO amid AI ‘vibe shift’ as investors ‘gag’ on Trump proximity, questionable revenue
By Nick LichtenbergFebruary 4, 2026
2 hours ago
AILayoffs
Pinterest cracks down on dissent, fires engineers for an internal layoff tool as AI shake-ups keep employees on edge and in line
By Marco Quiroz-GutierrezFebruary 4, 2026
2 hours ago
bessent
EconomyTariffs and trade
Scott Bessent’s ‘gotcha’ moment on Trump’s tariffs and inflation: He denies writing ‘tariffs are inflationary’ in letter to hedge fund investors
By Nick LichtenbergFebruary 4, 2026
3 hours ago