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

Trendingnow

1

MacKenzie Scott, Melinda French Gates, and Lauren Sánchez Bezos are rewriting the rules of billionaire giving—one quietly, one strategically, one very publicly

2

After donating $48 billion to the Gates Foundation, Warren Buffett is quietly ending one of the biggest philanthropic relationships in history

3

Current price of gold as of July 14, 2026

1

MacKenzie Scott, Melinda French Gates, and Lauren Sánchez Bezos are rewriting the rules of billionaire giving—one quietly, one strategically, one very publicly

2

After donating $48 billion to the Gates Foundation, Warren Buffett is quietly ending one of the biggest philanthropic relationships in history

3

Current price of gold as of July 14, 2026
TechBitcoin

The Sharks Are Beginning to Circle Bitcoin and It’s Down 30%

By
Bloomberg
Bloomberg
and
Wilder Davies
Wilder Davies
Down Arrow Button Icon
By
Bloomberg
Bloomberg
and
Wilder Davies
Wilder Davies
Down Arrow Button Icon
December 22, 2017, 3:06 PM ET
Add Fortune on Google for similar content.

Bitcoin faced one of its biggest tests this week, losing almost a quarter of its value after the world’s largest cryptocurrency reached a record high Monday.

The digital currency plunged as much as 30 percent on Friday, before paring losses, as this week’s selloff entered a fourth day with increasing momentum. Other cryptocurrencies also tumbled: ethereum dropped as much as 36 percent and litecoin slumped as much as 43 percent, according to composite prices on Bloomberg.

Michael Novogratz, the former Goldman Sachs Group Inc. and Fortress Investment Group LLC macro trader, said he’s shelving plans to start a cryptocurrency hedge fund and predicted that bitcoin may extend its plunge to $8,000.

“We didn’t like market conditions and we wanted to re-evaluate what we’re doing,” Novogratz said in a phone interview. He predicted last week that bitcoin could reach $40,000 within a few months.

Bitcoin dropped to as low as $10,776, before recovering to $13,48 at 2:01 p.m. in New York. It last traded below $10,000 on Dec. 1, when the U.S. Commodity Futures Trading Commission agreed to allow trading in bitcoin futures. For the week, the decline is 24 percent. The price of the digital coin had more than doubled in the prior three weeks.

This week’s losses represent a major test for the cryptocurrency industry and the blockchain technology that underpins it, which have rapidly entered the mainstream in recent weeks. Bears cast doubt on the value of the virtual assets, with UBS Group AG this week calling bitcoin the “biggest speculative bubble in history.” Bulls argue the technology is a game changer for the world of investment and finance. Both will be closely watching the outcome of the current selloff.

“The sharks are beginning to circle here, and the futures markets may give them a venue to strike,” said Ross Norman, chief executive officer of London-based bullion dealer Sharps Pixley Ltd., which offers gold in exchange for bitcoin. “Bitcoin’s been heavily driven by retail investors, but there’ll be some aggressive funds looking for the right opportunity to hammer this thing lower.”

Traders who bought the currency on futures exchanges using collateral may start facing margin calls following the price decline. Two venues launched products in recent weeks that required hefty security, with Cboe needing 44 percent to clear contracts, and the CME 47 percent. Brokers set safety nets even higher.

Coinbase, one of the world’s largest cryptocurrency exchanges, said all buying and selling was temporarily disabled during today’s rout, after having delays in processing wire transfers and verifying new customers for the past week due to higher traffic. Bitcoin transaction volume jumped more than 30 percent on Coinbase’s GDAX exchange, while fees to approve and record the transactions on the blockchain surged to a record $55, according to Bit Info Charts.

Many of the recent news stories and market moves connected to cryptocurrencies appear to carry hallmarks of the mania phase of a bubble. Long Island Iced Tea Corp. shares rose as much as 289 percent after the unprofitable Hicksville, New York-based company rebranded itself Long Blockchain Corp. Bank of Japan Governor Haruhiko Kuroda said on Thursday bitcoin isn’t functioning like a normal means of payment and is being used for speculation.

Still, cryptocurrencies are attracting established players. Goldman Sachs Group Inc. is setting up a trading desk to make markets in digital currencies such as bitcoin, according to people with knowledge of the strategy. The bank aims to get the business running by the end of June, if not earlier, two of the people said.

About the Authors
By Bloomberg
See full bioRight Arrow Button Icon
By Wilder Davies
See full bioRight Arrow Button Icon
Add Fortune on Google for similar content.

Latest in Tech

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 Tech

19 of Cyclops' members stand smiling at the camera from their offices in Vienna, Austria.
CryptoVenture Capital
Exclusive: Cyclops raises $20 million to help payment companies settle faster with stablecoins
By Camila Grigera NaónJuly 15, 2026
2 hours ago
zuck
LawLayoffs
26 Meta employees accuse Mark Zuckerberg of using AI to target 8,000 layoffs against workers on medical, parental or family leave
By Barbara Ortutay, Alexandra Olson and The Associated PressJuly 15, 2026
3 hours ago
Bank of America CFO Alastair Borthwick
BankingCFO Daily
Bank of America’s AI bet is starting to pay off, its CFO says
By Sheryl EstradaJuly 15, 2026
3 hours ago
Is your AI really working? Why productivity isn’t the same as progress
Future of WorkBrainstorm Tech
Is your AI really working? Why productivity isn’t the same as progress
By Jamie GarverickJuly 15, 2026
3 hours ago
UCSF medical center
Startups & VentureHealth
Kleiner Perkins, John Doerr, and UCSF Health think healthcare AI has been built all wrong
By Lily Mae LazarusJuly 15, 2026
3 hours ago
Salar al Khafaji stands while Sebastiaan Visser sits on a stool in front of a robotics warehouse
InnovationRobotics
He sold his last company to Palantir. Now he’s betting $32 million that robots can fix construction’s labor crisis
By Lily Mae LazarusJuly 15, 2026
3 hours ago

Most Popular

MacKenzie Scott, Melinda French Gates, and Lauren Sánchez Bezos are rewriting the rules of billionaire giving—one quietly, one strategically, one very publicly
Newsletters
MacKenzie Scott, Melinda French Gates, and Lauren Sánchez Bezos are rewriting the rules of billionaire giving—one quietly, one strategically, one very publicly
By Sydney LakeJuly 14, 2026
23 hours ago
After donating $48 billion to the Gates Foundation, Warren Buffett is quietly ending one of the biggest philanthropic relationships in history
North America
After donating $48 billion to the Gates Foundation, Warren Buffett is quietly ending one of the biggest philanthropic relationships in history
By Marco Quiroz-GutierrezJuly 14, 2026
21 hours ago
Current price of gold as of July 14, 2026
Personal Finance
Current price of gold as of July 14, 2026
By Danny BakstJuly 14, 2026
1 day ago
Current price of silver as of Tuesday, July 14, 2026
Personal Finance
Current price of silver as of Tuesday, July 14, 2026
By Joseph HostetlerJuly 14, 2026
1 day ago
'He found their weakness. It might have been sex. It might be power': Warren Buffett stunned by Epstein pull as he snubs Gates Foundation
Banking
'He found their weakness. It might have been sex. It might be power': Warren Buffett stunned by Epstein pull as he snubs Gates Foundation
By Josh Funk and The Associated PressJuly 14, 2026
1 day ago
United States' $39 trillion national debt will mean fewer jobs at lower wages for Gen Z, according to think tank
Economy
United States' $39 trillion national debt will mean fewer jobs at lower wages for Gen Z, according to think tank
By Eleanor PringleJuly 14, 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.