• Home
  • Latest
  • Coins2Day 500
  • Finance
  • Tech
  • Leadership
  • Lifestyle
  • Rankings
  • Multimedia
PoliticsKen Griffin

Ken Griffin’s Citadel calls Trump Media CEO a ‘loser’ after he wrote a letter to Nasdaq, claiming to be a victim of potential market manipulation

Eleanor Pringle
By
Eleanor Pringle
Eleanor Pringle
Senior Reporter, Economics and Markets
Down Arrow Button Icon
Eleanor Pringle
By
Eleanor Pringle
Eleanor Pringle
Senior Reporter, Economics and Markets
Down Arrow Button Icon
April 22, 2024, 6:48 AM ET
Left: U.S. Rep. Devin Nunes. Right: Citadel CEO and founder Ken Griffin
Trump Media & Technology Group CEO Devin Nunes (left) has accused Citadel, founded by Ken Griffin (right), of “potential market manipulation.”From left: Kevin Dietsch—Getty Images; Lionel Ng—Bloomberg/Getty Images

Citadel Securities has blasted the CEO of Trump Media & Technology Group (TMTG)—parent company of Truth Social—after the executive accused the Ken Griffin–founded company of “potential market manipulation.”

On Thursday Devin Nunes, CEO of TMTG, wrote to Nasdaq CEO Adena Friedman claiming stocks in his company had fallen foul of “naked short-selling”—a process of traders off-loading stocks before they have either borrowed the asset or ensured it can be borrowed.

Miami-based Citadel Securities, where Griffin serves as founder and nonexecutive chairman, was named among the group allegedly engaging in this activity.

But a spokesman for the capital markets firm has resoundingly denied the allegation, saying Nunes is merely using the excuse of naked short-selling to cover up a dismal market performance.

Trump Media’s share price boomed upon its market debut in March, sitting at just over $66 a share and giving the company a market value of around $8 billion.

Yet by mid-April, this had plummeted 66% to $22, rebounding slightly to sit at approximately $36 at the time of writing.

But Citadel Securities hasn’t only dismissed the claims—it took aim directly at Nunes and branded him a “proverbial loser.”

“Nunes is exactly the type of person Donald Trump would have fired on The Apprentice,” a Citadel Securities spokesperson told Coins2Day.

The behemoth added that if Nunes were on its payroll it would “fire him” because “ability and integrity are at the center of everything we do.”

Trump Media was approached by Coins2Day for comment.

TMTG scoffs at Citadel Securities’ ‘lectures on integrity’

Not to be cowed by the damning response from Citadel Securities, TMTG hit back—alleging that the firm is “a corporate behemoth that has been fined and censured for an incredibly wide range of offenses, including issues related to naked short-selling.”

TMTG may be alluding to Citadel Securities settling charges with the SEC in 2023 over a violation of short-selling regulations. However, while the firm paid out a $7 million penalty it never admitted to, or denied, the charges.

A spokesperson for TMTG added to CNBC and the New York Post that Citadel Securities is “world famous for screwing over everyday retail investors at the behest of other corporations” and so “is the last company on earth that should lecture anyone on ‘integrity.’”

In his letter to Nasdaq, Nunes asked the index to “foster transparency and compliance,” a request it reiterated in a further filing to the SEC.

In a filing on April 19 seen by Coins2Day, TMTG said it wanted to explore “opportunities to collaborate with Nasdaq on matters related to short-selling.”

However, the filing took further aim at Citadel Securities, writing: “Rather than support our commonsense efforts to promote transparency and compliance, Citadel Securities bizarrely targeted our CEO with an unhinged attack.”

Griffin and Trump

While the back-and-forth between Citadel Securities and Trump Media doesn’t come down to a Griffin vs. Trump battle, it echoes the former’s resistance to back the presidential candidate.

Griffin, who owns an 85% stake in Citadel—a separate entity from Citadel Securities—giving him a net worth of $37 billion, is reportedly in the Republican’s donor class but has shied away from supporting Trump, who owns approximately 57% of TMTG stock per CNN.

In the early days of the nominee races, Griffin—who reportedly called Trump a “three-time loser,” showed interest in Ron DeSantis, the Florida governor, and then backed Nikki Haley, the former UN ambassador, with a $5 million donation, federal records show.

But as Trump has dominated the Republican field, Griffin and others said they would concentrate instead on other contests.

“I am focused on actively supporting exceptional candidates across the country, such as David McCormick, Tim Sheehy, and Larry Hogan,” Griffin said in a statement in February.

“They share my commitment to promoting economic freedom, ensuring that every child has access to a high-quality education, putting our national debt and deficit on a sustainable footing, and safeguarding our nation’s security at home and abroad.”

Join us at the Coins2Day 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 Author
Eleanor Pringle
By Eleanor PringleSenior Reporter, Economics and Markets
LinkedIn icon

Eleanor Pringle is an award-winning senior reporter at Coins2Day covering news, the economy, and personal finance. Eleanor previously worked as a business correspondent and news editor in regional news in the U.K. She completed her journalism training with the Press Association after earning a degree from the University of East Anglia.

See full bioRight Arrow Button Icon

Latest in Politics

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 Coins2Day 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 Coins2Day 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 Coins2Day 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 Coins2Day 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 Coins2Day 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 Coins2Day 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 Coins2Day 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 Coins2Day 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 Coins2Day 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 Coins2Day 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 Coins2Day 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 Coins2Day Editors
October 20, 2025
Rankings
  • 100 Best Companies
  • Coins2Day 500
  • Global 500
  • Coins2Day 500 Europe
  • Most Powerful Women
  • Future 50
  • World’s Most Admired Companies
  • See All Rankings
Sections
  • Finance
  • Leadership
  • Success
  • Tech
  • Asia
  • Europe
  • Environment
  • Coins2Day 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
  • Coins2Day Brand Studio
  • Coins2Day Analytics
  • Coins2Day Conferences
  • Business Development
About Us
  • About Us
  • Editorial Calendar
  • Press Center
  • Work At Coins2Day
  • Diversity And Inclusion
  • Terms And Conditions
  • Site Map
  • Facebook icon
  • Twitter icon
  • LinkedIn icon
  • Instagram icon
  • Pinterest icon

Most Popular

placeholder alt text
Economy
Right before Trump named Warsh to lead the Fed, Powell seemed to respond to some of his biggest complaints about the central bank
By Jason MaJanuary 30, 2026
21 hours ago
placeholder alt text
Politics
The American taxpayer spent nearly half a billion dollars deploying federal troops to U.S. cities in 2025, CBO finds
By Nick LichtenbergJanuary 28, 2026
3 days ago
placeholder alt text
North America
'I meant what I said in Davos': Carney says he really is planning a Canada split with the U.S. along with 12 new trade deals
By Rob Gillies and The Associated PressJanuary 28, 2026
3 days ago
placeholder alt text
AI
Top engineers at Anthropic, OpenAI say AI now writes 100% of their code—with big implications for the future of software development jobs
By Beatrice NolanJanuary 29, 2026
2 days ago
placeholder alt text
Economy
'I just don't have a good feeling about this': Top economist Claudia Sahm says the economy quietly shifted and everyone's now looking at the wrong alarm
By Eleanor PringleJanuary 31, 2026
6 hours ago
placeholder alt text
Big Tech
Microsoft’s $440 billion wipeout, and investors angry about OpenAI’s debt, explained
By Eva RoytburgJanuary 29, 2026
2 days ago

© 2026 Coins2Day 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 Coins2Day 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 Politics

C-SuitePolitics
Minnesota CEOs chose deescalation over outrage. Did it work?
By Geoff ColvinJanuary 31, 2026
1 hour ago
Theranos founder Elizabeth Holmes and her husband Billy Evans.
LawTheranos
The mystery behind Elizabeth Holmes’ tweeting spree from prison
By Jessica MathewsJanuary 31, 2026
1 hour ago
EconomyU.S. economy
Kevin Warsh will inherit a challenge no Fed chief has faced since post-World War II regarding the spiraling $31 trillion national debt
By Shawn TullyJanuary 31, 2026
3 hours ago
Politicsgovernment shutdown
Federal government heads for weekend shutdown after Trump makes rare deal with Senate Democrats over DHS funding
By Mary Clare Jalonick, Lisa Mascaro and The Associated PressJanuary 30, 2026
13 hours ago
LawDepartment of Justice
Justice Department opens a federal civil rights probe into the killing of Alex Pretti, with FBI leading the investigation
By Michael Biesecker, Rebecca Santana, Alanna Durkin Richer and The Associated PressJanuary 30, 2026
13 hours ago
PoliticsJeffrey Epstein
Latest Epstein files detail contact with Howard Lutnick, Steve Bannon and Goldman Sachs lawyer
By Eric Tucker, Michael R. Sisak, Alanna Durkin Richer and The Associated PressJanuary 30, 2026
13 hours ago