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

Trendingnow

1

Mark Cuban says he has the solution to growing income inequality, and it's to reward every employee—from CEO to janitor—with company stock

2

‘I want to die broke’: Billionaire philanthropist Denny Sanford dies after giving away $4 billion

3

'Dr. Doom' Nouriel Roubini says we're headed for universal basic income or 'some form of socialism' as AI revolutionizes work—He calls that optimistic

1

Mark Cuban says he has the solution to growing income inequality, and it's to reward every employee—from CEO to janitor—with company stock

2

‘I want to die broke’: Billionaire philanthropist Denny Sanford dies after giving away $4 billion

3

'Dr. Doom' Nouriel Roubini says we're headed for universal basic income or 'some form of socialism' as AI revolutionizes work—He calls that optimistic
Financestock prices

One of the most shorted stocks on the market just leapt 99%, putting a ‘rib-crunching’ squeeze on bearish bettors 

By
Angel Adegbesan
Angel Adegbesan
,
Carmen Reinicke
Carmen Reinicke
, and
Bloomberg
Bloomberg
Down Arrow Button Icon
By
Angel Adegbesan
Angel Adegbesan
,
Carmen Reinicke
Carmen Reinicke
, and
Bloomberg
Bloomberg
Down Arrow Button Icon
May 10, 2024, 7:41 PM ET
a researcher works in a lab
Novavax signed a $1.2 billion licensing agreement with Sanofi that includes commercializing a combined Covid-19 and flu shot. Matt McClain—The Washington Post/Getty Images
Add Fortune on Google for similar content.

Novavax Inc.’s record one-day gain is forcing some short sellers betting against the stock to exit their positions at a loss. 

Recommended Video

Shares of the vaccine maker soared 99% Friday, after the company signed a $1.2 billion licensing agreement with Sanofi that includes commercializing a combined Covid-19 and flu shot. The move boosts a stock that had plunged about 99% — prior to the deal — from its 2021 peak amid waning demand for its Covid vaccine.

Friday’s surge, however, delivered paper losses of about $255 million to short sellers, according to data from S3 Partners LLC. The biotech stock is a crowded position for short sellers, with less than 1 million shares available to borrow to support new sales, according to S3. 

The rapid gain in Novavax shares puts traders at risk of getting squeezed, a phenomenon where short sellers are forced to buy back the stock to unload their losing positions. The short covering drives the company’s share price higher, adding further pressure to the contrarian traders. 

“We expect a rib-crunching short squeeze in Novavax with short sellers taking huge losses on the market open and closing out positions throughout the day,” said Ihor Dusaniwsky, managing director of predictive analytics at S3.

Novavax is among the most heavily shorted stocks in the US with over $50 million of short interest.

“Many short sellers may hold on for a while and look for better exit prices over the next few days,” Dusaniwsky added.

For its part, Novavax will gain $500 million in upfront payments as well as up to $700 million if development, regulatory and launch milestones are met from the Sanofi licensing agreement. The new cash infusion spurred an upgrade by JPMorgan’s Eric Joseph, who views the deal as “transformative to Novavax’s overall business.”

Joseph, who moved to a neutral rating from an underweight, expects many of Novavax’s commercial growing pains suffered in 2023 and 2024 to be much less of a factor with Sanofi running the commercialization from 2025 onwards.

Still, Wall Street analysts remain divided on the stock — with three buy ratings, three saying to hold and none recommending investors to sell — according to data compiled by Bloomberg. The average price target of $17 implies about 91% upside in the next 12 months from where shares are currently trading.

About the Authors
By Angel Adegbesan
See full bioRight Arrow Button Icon
By Carmen Reinicke
See full bioRight Arrow Button Icon
By Bloomberg
See full bioRight Arrow Button Icon
Add Fortune on Google for similar content.

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
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 Finance

A Jersey Mike's logo is displayed outside one of their stores in San Diego, California.
InvestingIPOs
Jersey Mike’s IPO valuation could reach eight times Sweetgreen’s market cap
By Sheryl EstradaJuly 21, 2026
54 minutes ago
U.S. military launches 10th straight night of airstrikes on Iran as Houthi allies threaten Red Sea, but glimmers of hope appear on diplomatic front
EnergyIran
U.S. military launches 10th straight night of airstrikes on Iran as Houthi allies threaten Red Sea, but glimmers of hope appear on diplomatic front
By Jon Gambrell and The Associated PressJuly 20, 2026
9 hours ago
Trump to impose 50% tariffs on most Canadian goods, invoking the ‘nuclear option’ that could unleash a new wave of economic chaos and inflation
EconomyTariffs
Trump to impose 50% tariffs on most Canadian goods, invoking the ‘nuclear option’ that could unleash a new wave of economic chaos and inflation
By Josh Boak and The Associated PressJuly 20, 2026
9 hours ago
Blue Owl Capital owns about a third of the Freedom Fuel properties: A look inside the $3.47 gas chain
North AmericaDonald Trump
Blue Owl Capital owns about a third of the Freedom Fuel properties: A look inside the $3.47 gas chain
By Brian Slodysko, Michael Biesecker and Josh BoakJuly 20, 2026
12 hours ago
Monument in Iran.
EnergyIran
U.S. bombs Iran for ninth straight night as Tehran strikes Kuwait, Jordan, and Bahrain
By The Associated Press and Jon GambrellJuly 20, 2026
12 hours ago
Mark Cuban, in front of a purple background, has his mouth open and is looking to his left.
Successcompensation
Mark Cuban says he has the solution to growing income inequality, and it’s to reward every employee—from CEO to janitor—with company stock
By Sasha RogelbergJuly 20, 2026
14 hours ago

Most Popular

Mark Cuban says he has the solution to growing income inequality, and it's to reward every employee—from CEO to janitor—with company stock
Success
Mark Cuban says he has the solution to growing income inequality, and it's to reward every employee—from CEO to janitor—with company stock
By Sasha RogelbergJuly 20, 2026
14 hours ago
‘I want to die broke’: Billionaire philanthropist Denny Sanford dies after giving away $4 billion
Success
‘I want to die broke’: Billionaire philanthropist Denny Sanford dies after giving away $4 billion
By Sydney LakeJuly 20, 2026
18 hours ago
'Dr. Doom' Nouriel Roubini says we're headed for universal basic income or 'some form of socialism' as AI revolutionizes work—He calls that optimistic
AI
'Dr. Doom' Nouriel Roubini says we're headed for universal basic income or 'some form of socialism' as AI revolutionizes work—He calls that optimistic
By Jason MaJuly 18, 2026
2 days ago
Warren Buffett says his $147 billion investing career was an accident: ‘I may be one of the 10 luckiest in the world’
Future of Work
Warren Buffett says his $147 billion investing career was an accident: ‘I may be one of the 10 luckiest in the world’
By Sarah GlodekJuly 20, 2026
1 day ago
Current price of silver as of Monday, July 20, 2026
Personal Finance
Current price of silver as of Monday, July 20, 2026
By Joseph HostetlerJuly 20, 2026
22 hours ago
It’s not just Taco Bell lettuce and possible glass in Pillsbury rolls: Food and drink recall events reached a 6-year year-over-year high
Retail
It’s not just Taco Bell lettuce and possible glass in Pillsbury rolls: Food and drink recall events reached a 6-year year-over-year high
By Sasha RogelbergJuly 20, 2026
22 hours 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.