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

Sorry, tech bulls. The likely reason for this week’s Nasdaq rally was a flood of short activity

By
Lu Wang
Lu Wang
,
Melissa Karsh
Melissa Karsh
and
Bloomberg
Bloomberg
Down Arrow Button Icon
By
Lu Wang
Lu Wang
,
Melissa Karsh
Melissa Karsh
and
Bloomberg
Bloomberg
Down Arrow Button Icon
March 11, 2021, 3:57 AM ET

The recent rally in the Nasdaq 100 has been referred to as an oversold bounce aided by a drop in bond yields. Beneath the surface, however, the surge was largely driven by hedge funds who were forced to pare their bearish bets to limit losses — rather than genuine interest.

While those funds were net buyers of stocks for a fifth straight day, short covering outpaced long sales by a ratio of 4 to 1 on Tuesday, according to data from Goldman Sachs Group Inc.’s prime brokerage unit. As the spike in the tech-heavy gauge didn’t reflect appetite for risk, some analysts say those gains would likely be short-lived.

“We see yesterday’s move as short covering without legs,” said Andrew Brenner, the head of international fixed-income at NatAlliance Securities in New York.

Short sellers had boosted their wagers as the Nasdaq 100 tumbled more than 10% from a February record. Last week, large speculators — mostly hedge funds — were most bearish on Nasdaq mini futures since early October, according to data compiled by Commodity Futures Trading Commission.

Those heavy bets set the stage for a short squeeze as the Nasdaq 100 surged 4% Tuesday, the most in four months. Among Goldman’s hedge-fund clients, short covering in unprofitable tech firms helped the group halt seven straight days of selling and score the third-biggest net buying of the year. Over the past two days, a Goldman basket of the most-shorted tech stocks has jumped almost 7% — more than double the return of the Russell 3000.

The Nasdaq 100 climbed as much as 1.5% Wednesday before erasing gains. Volatility in the tech-heavy gauge is picking up as the stay-at-home trade lost some luster amid signs of an economic rebound.

About the Authors
By Lu Wang
See full bioRight Arrow Button Icon
By Melissa Karsh
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

Latest in Finance

posnett
Commentaryinvestment banking
Goldman investment banking co-head Kim Posnett on the year ahead, from an IPO ‘mega-cycle’ to another big year for M&A to AI’s ‘horizontal disruption’
By Nick LichtenbergJanuary 19, 2026
3 hours ago
dusek
CommentaryDavos
Geoeconomics is the new geopolitics: Playing offense in the new economy
By Mirek DusekJanuary 19, 2026
3 hours ago
Asiademographics
China birth rate hits lowest since 1949 in blow to baby drive
By BloombergJanuary 19, 2026
3 hours ago
Personal FinanceReal Estate
Current ARM mortgage rates report for Jan. 19, 2026
By Glen Luke FlanaganJanuary 19, 2026
5 hours ago
Personal FinanceReal Estate
Current refi mortgage rates report for Jan. 19, 2026
By Glen Luke FlanaganJanuary 19, 2026
5 hours ago
Personal Financemortgages
Current mortgage rates report for Jan. 19, 2026
By Glen Luke FlanaganJanuary 19, 2026
5 hours ago

Most Popular

placeholder alt text
Economy
3 things Trump did in 24 hours to show that he's in control of American business
By Eva RoytburgJanuary 8, 2026
11 days ago
placeholder alt text
AI
This CEO laid off nearly 80% of his staff because they refused to adopt AI fast enough. 2 years later, he says he'd do it again
By Nick LichtenbergJanuary 11, 2026
8 days ago
placeholder alt text
Economy
Making billionaires illegal by taxing their wealth wouldn’t even fund the government for a year, budget expert says
By Nick LichtenbergJanuary 17, 2026
2 days ago
placeholder alt text
AI
Ford CEO warns there's a dearth of blue-collar workers able to construct AI data centers and operate factories: 'Nothing to backfill the ambition'
By Sasha RogelbergJanuary 18, 2026
24 hours ago
placeholder alt text
Economy
National debt is already killing the American Dream, says top economist—and it might push the U.S. into an outright depression
By Eleanor PringleJanuary 18, 2026
1 day ago
placeholder alt text
Economy
Europe can wield this $8 trillion 'sell America' weapon as Trump reignites a trade war over his Greenland conquest ambitions
By Jason MaJanuary 18, 2026
19 hours ago

© 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.