Key Highlights:
- Senator Richard Blumenthal has launched an inquiry scrutinizing Cantor Fitzgerald’s financial ties and custodial partnership with stablecoin issuer Tether.
- The probe centers on a significant valuation surge in Cantor’s Tether stake and distributions received by Commerce Secretary Howard Lutnick before stepping down from the firm.
- Blumenthal has requested extensive documentation—including compliance reviews, divestiture terms, and independent audit details—with a deadline of Oct. 23.
Senate Scrutiny Targets Cantor Fitzgerald’s Multi-Billion Dollar Tether Ties
Financial services firm Cantor Fitzgerald is facing intense legislative oversight regarding its lucrative and long-standing partnership with stablecoin issuer Tether. Senator Richard Blumenthal has formally questioned the relationship, spotlighting the rapid growth of Cantor’s financial exposure to the cryptocurrency company. Cantor Fitzgerald acquired rights to a 5% stake in Tether in 2024 and reportedly custodies tens of billions of Tether’s US Treasury bill reserves. According to Blumenthal, the estimated value of Cantor’s holding in Tether surged from $600 million to $10 billion following Donald Trump’s return to office. During that same timeframe, former Cantor chairman and CEO Howard Lutnick allegedly received over $250 million, an amount that includes a $192 million distribution from the financial firm.
The formal inquiry stems from findings released last month by Democratic investigators on the Senate Permanent Subcommittee on Investigations. The report claimed that Tether’s USDt ($USDT) has emerged as a crucial instrument within Iran’s shadow banking system. In response to these claims, Blumenthal urged both the US Department of the Treasury and the Department of Justice to open probes into potential violations of federal sanctions. Addressing the concerns, Tether issued a statement maintaining that it has actively collaborated with global law enforcement agencies for years, highlighting that it has frozen nearly $550 million in Iran-linked $USDT over the course of this year.
Connecting the stablecoin issuer’s revenues to Cantor Fitzgerald’s financial gains, the senator argued that the Wall Street firm shares direct financial exposure from these activities. “Just as Tether has made untold millions in interest and investments from the stablecoins used in these illicit activities, so has Cantor Fitzgerald profited from its relationship with Tether,”
Blumenthal wrote in his latest letter to Cantor. Requests for comment sent by Cointelegraph to both Tether and Cantor Fitzgerald did not receive an immediate response.
Origins of the Cantor-Tether Alliance and Leadership Changes
The operational ties between Cantor Fitzgerald and Tether trace back to 2021, when the Wall Street brokerage began serving as a primary custodian for portions of the US Treasury reserves backing the USDT stablecoin. Howard Lutnick was leading Cantor as chairman and CEO throughout that timeframe and played a direct role in negotiating the investment in Tether finalized in April 2024.
Lutnick formally relinquished his executive positions at Cantor Fitzgerald following his confirmation by the US Senate as commerce secretary in February 2025. Following his departure to join the administration, the firm elevated his son Brandon to the role of chairman, while his other son assumed the position of vice chairman. This transition of control and the underlying financial arrangements have now drawn direct interest from lawmakers.
Demands for Divestiture Terms and Compliance Audits
Beyond requesting accounting books, earnings records, and compliance logs, Blumenthal is seeking full transparency regarding Howard Lutnick’s complete divestiture terms from Cantor Fitzgerald. The inquiry specifically seeks disclosure on whether Tether extended any loans, financing, or credit arrangements to Lutnick or his family members to assist in transferring firm ownership to his children.
Additionally, the senator has questioned Cantor’s internal due diligence standards regarding the stablecoin giant. Blumenthal’s letter asks whether Cantor Fitzgerald mandates independent audits of Tether’s financial reserves, whether executive leadership has ever assessed terminating the custodial partnership, and what specific investigative measures the brokerage has enacted to combat illicit finance and sanctions evasion. Cantor Fitzgerald has been directed to submit answers and relevant records by Oct. 23.
Why This Matters
This high-profile inquiry intersects traditional Wall Street custody services, federal regulatory compliance, and senior government leadership. Because Cantor Fitzgerald custodies tens of billions of dollars in US Treasuries backing USDT, any findings regarding illicit finance or sanctions compliance could influence how federal regulators monitor the intersection between digital assets and mainstream brokerages. Furthermore, the focus on Howard Lutnick’s divestiture process elevates the matter from standard financial oversight to executive branch ethics enforcement, setting a significant precedent for former corporate leaders entering federal office.
Frequently Asked Questions
When did Cantor Fitzgerald begin managing Tether’s reserves?
Cantor Fitzgerald’s working relationship with Tether began in 2021, when the brokerage took on custodial duties for a substantial share of the US Treasury bills backing the USDT stablecoin.
What specific details is Senator Richard Blumenthal requesting from Cantor?
Senator Blumenthal is demanding details on Howard Lutnick’s divestiture from Cantor, information on potential loans from Tether to the Lutnick family, compliance procedures on illicit financing, and whether Cantor requires Tether to undergo independent financial audits.
What is the response deadline for the inquiry?
Senator Blumenthal has instructed Cantor Fitzgerald to provide its comprehensive response to the committee’s inquiries by Oct. 23.
