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

Big Short investor says Bitcoin is in a ‘speculative bubble’

By
Chris Morris
Chris Morris
Former Contributing Writer
Down Arrow Button Icon
By
Chris Morris
Chris Morris
Former Contributing Writer
Down Arrow Button Icon
March 1, 2021, 2:43 PM ET

There are plenty of Bitcoin bulls evangelizing the digital currency these days, but Michael Burry, the focus of the film and book The Big Short, is not one of them.

Burry, in a now-deleted tweet, warned that Bitcoin’s current levels are unsustainable—and current investors could suffer significant losses.

“$BTC is a speculative bubble that poses more risk than opportunity despite most of the proponents being correct in their arguments for why it is relevant at this point in history,” he wrote. “If you do not know how much leverage is involved in the run-up, you may not know enough to own it.”

Burry knows about bubbles, having made a fortune off the housing market’s collapse in 2007. And he warned that Bitcoin’s recent ascension seemed reminiscent of that time.

“Fads today (#BTC, #EV, SAAS #memestocks) are like housing in 2007 and fiber/.com/comm/routers in 1999,” he said.

Burry regularly deletes his tweets, but he has been quite outspoken on the platform about a number of issues. Last April he decried the coronavirus lockdown. He began tweeting last March, and his comments are closely watched by the financial community, though he does not talk much (if at all) about his own investments.

His bearish remarks come at roughly the same time that Citi gave Bitcoin a boost. A note from analysts at the financial institution said the cybercurrency could be on the verge of going mainstream, despite the many obstacles in its path.

“But weighing these potential hurdles against the opportunities leads to the conclusion that Bitcoin is at a tipping point and we could be at the start of massive transformation of cryptocurrency into the mainstream,” the analysts said.

About the Author
By Chris MorrisFormer Contributing Writer

Chris Morris is a former contributing writer at Fortune, covering everything from general business news to the video game and theme park industries.

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
Fortune Secondary Logo
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
  • 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
  • Editorial Calendar
  • Press Center
  • Work At Fortune
  • Diversity And Inclusion
  • Terms And Conditions
  • Site Map
  • 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

Personal FinanceGold
Should you invest in physical gold or a gold ETF?
By Joseph HostetlerMarch 20, 2026
16 minutes ago
A man walks between two luxury cars with the skyline of Dubai in the background.
RetailLuxury
The Middle East is one of the world’s fastest growing luxury markets—and the war in Iran may cut its sales in half, analysts say
By Sasha RogelbergMarch 20, 2026
21 minutes ago
trump
Commentarynational debt
The U.S. just hit $39 trillion in debt. Here’s the constitutional fix that Congress won’t touch
By Steve H. Hanke and David M. WalkerMarch 20, 2026
54 minutes ago
Stressed out job seeker on laptop
Successjob hunting
Job-seekers aren’t imagining things: the number of candidates getting ghosted by employers just reached a three-year high
By Emma BurleighMarch 20, 2026
1 hour ago
SuccessCareers
AI boom is fueling demand for skilled trades—and demand for technicians, HVAC workers, and electricians is soaring, with six-figure salaries to match
By Preston ForeMarch 20, 2026
2 hours ago
InvestingDebt
300 years of wars show they are ‘always disaster times’ for holders of government debt because of inflation and financial repression
By Jason MaMarch 20, 2026
2 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.