Tether And Circle Treasury Reserves Drive $6.2 Billion Profit And Regulatory Scrutiny

Tether and Circle are generating billions of dollars in annual revenue from US Treasury yields backing their stablecoins, according to the latest reserve attestations and financial disclosures from both issuers. The two firms, which together control more than 90% of the $230 billion stablecoin market, have shifted the overwhelming majority of their reserve portfolios into short-dated US government debt, transforming what was once a low-margin custody business into one of the most profitable corners of the digital asset industry.

The revenue model is straightforward. Stablecoin issuers hold customer deposits in reserve assets, historically a mix of cash, commercial paper, and other short-term instruments. As US interest rates climbed from near zero in early 2022 to a peak above 5% in 2023 and 2024, the yield on those reserves became a dominant income stream. Tether reported a net profit of $6.2 billion in 2024, a figure that exceeded the annual earnings of BlackRock, the world's largest asset manager. Circle, the issuer of USDC, has disclosed interest income figures that place it among the most profitable fintech companies in the United States.

The scale of the shift is visible in the reserve composition data. Tether's latest quarterly attestation shows that US Treasury bills now account for more than 80% of its reserve assets, up from roughly 50% in early 2022. Circle has moved even further, with its most recent reserve report indicating that US Treasuries and Treasury-backed repurchase agreements constitute over 90% of the USDC reserve portfolio. Both issuers have publicly committed to maintaining the bulk of their reserves in the safest, most liquid dollar-denominated assets available.

Treasury Holdings Now Back 80% Of Tether And Circle Reserves

Tether's reserve composition has undergone a dramatic transformation over the past three years. The company's attestation reports, signed by accounting firm BDO Italia, show that direct and indirect exposure to US Treasury bills reached $94.5 billion as of the fourth quarter of 2024, representing approximately 82% of total reserves. That figure includes Treasury bills held directly, overnight reverse repurchase agreements collateralized by Treasuries, and money market funds that invest primarily in government debt.

The shift away from commercial paper has been deliberate. In 2021, Tether held more than $30 billion in commercial paper, a fact that drew criticism from regulators and market participants concerned about the credit quality of those holdings. By the end of 2022, Tether had reduced its commercial paper exposure to zero, replacing it almost entirely with Treasury bills. The company's chief technology officer, Paolo Ardoino, who became CEO in December 2023, described the move as a response to market conditions and a commitment to reducing counterparty risk.

Circle's reserve posture is even more conservative. The company's monthly attestations, published by Deloitte, show that USDC reserves held in US Treasury bills, Treasury notes, and Treasury-backed repurchase agreements totaled $41.3 billion as of the most recent reporting period. Circle has maintained a policy of holding at least 80% of reserves in short-dated US government obligations since 2021, but in practice the figure has consistently exceeded 90%. The remainder is held in cash at regulated US banks, including Silicon Valley Bank before its March 2023 failure, an event that briefly caused USDC to trade below its $1 peg.

The combined Treasury exposure of the two issuers now exceeds $135 billion, a figure that places them among the largest holders of US government debt outside of sovereign entities. Tether alone would rank in the top 20 holders of US Treasuries globally if it were a country, ahead of nations such as Germany, Mexico, and Australia. This concentration has drawn attention from policymakers who view stablecoin issuers as both a source of demand for US debt and a potential systemic risk if forced to liquidate holdings rapidly.

Interest Income From Treasuries Now Exceeds $10 Billion Annually For Tether

Tether's financial disclosures reveal the scale of the yield windfall. The company reported net profit of $6.2 billion for 2024, with the vast majority of that figure attributable to interest earned on its Treasury holdings. In the first quarter of 2024 alone, Tether reported a net profit of $4.52 billion, a figure that included approximately $1 billion in unrealized gains on its Bitcoin holdings and the remainder from Treasury yields. The company's attestation for the fourth quarter of 2024 showed excess reserves — the buffer above the amount needed to fully back all USDT in circulation — of $7.1 billion.

Circle's revenue figures are smaller but still substantial. The company reported revenue of $1.68 billion for 2024, according to its S-1 filing with the Securities and Exchange Commission in connection with its planned initial public offering. Interest income on reserve assets accounted for more than 99% of that total. Circle's filing showed that the company earned $779 million in interest income during the first half of 2024 alone, a figure that exceeded its total revenue for all of 2023.

The comparison to traditional financial institutions is striking. Tether's 2024 profit of $6.2 billion exceeded the annual earnings of BlackRock, which reported net income of $5.9 billion for the same period. Tether accomplished this with a workforce of fewer than 100 employees, according to company statements. Circle's revenue per employee, based on its disclosed headcount of approximately 900, exceeded $1.8 million in 2024, a figure that rivals the most efficient technology companies.

Both issuers have used the windfall to diversify. Tether has invested in Bitcoin, acquiring more than 83,000 BTC valued at over $8 billion as of early 2025. The company has also expanded into artificial intelligence, energy, and telecommunications through its investment arm. Circle has taken a more conservative approach, using its profits to build out its compliance infrastructure and expand its product offerings, including the launch of USDC on additional blockchain networks.

Yield Revenue Raises New Questions About Stablecoin Stability And Transparency

The Treasury yield revenue model has generated significant debate among economists, regulators, and market participants. Critics argue that stablecoin issuers have become de facto banks without the regulatory obligations that accompany that status. The issuers hold customer funds, invest them in interest-bearing assets, and retain the profits, while stablecoin holders receive no yield on their deposits. This structure, critics contend, creates a misalignment of incentives that could encourage risk-taking.

Tether's transparency practices have been a particular focus of scrutiny. The company publishes quarterly attestations rather than full audited financial statements, a distinction that has drawn criticism from accounting experts. An attestation confirms that the stated assets exist at a point in time, but does not provide the same level of assurance as a full audit. Tether has committed to publishing real-time reserve data, but as of early 2025 that commitment had not been fully implemented.

Circle's approach has been different. The company publishes monthly attestations and has filed for an IPO, a process that requires full audited financial statements. Circle's S-1 filing disclosed that the company held $3.3 billion in cash at Silicon Valley Bank when the bank failed in March 2023, a disclosure that highlighted the risks inherent in even the most conservative reserve management strategies. The company ultimately recovered the funds through the FDIC's intervention, but the episode demonstrated that stablecoin reserves are not immune to banking system stress.

The stability question extends beyond individual issuer practices. If stablecoin issuers collectively hold more than $135 billion in Treasury bills, a sudden wave of redemptions could force rapid liquidation of those holdings. In a stressed market environment, that selling pressure could theoretically impact Treasury yields, creating a feedback loop that would affect the broader financial system. The Treasury Department and the Federal Reserve have both acknowledged this risk in public statements, though neither has proposed specific measures to address it.

Regulators And Lawmakers Scrutinize Stablecoin Treasury Holdings As Reserves Grow

The regulatory landscape for stablecoin issuers is evolving rapidly. The GENIUS Act, introduced in the US Senate in early 2025, would establish a federal framework for stablecoin regulation, including requirements for reserve composition, redemption rights, and disclosure. The bill, whose full name is the Guiding and Establishing National Innovation for US Stablecoins Act, would require issuers to hold reserves in cash, Treasury bills, or other assets approved by federal regulators.

The bill's reserve requirements would largely codify the practices that Tether and Circle have already adopted. Both issuers would meet the proposed standards for Treasury backing, though Tether's status as a non-US entity raises questions about its eligibility for federal licensing. Tether is incorporated in the British Virgin Islands and operates primarily outside the US regulatory perimeter, a fact that has drawn criticism from lawmakers who argue that the largest stablecoin issuer should be subject to US oversight.

State-level regulation is also advancing. New York's Department of Financial Services, which regulates Circle through its BitLicense framework, has established reserve requirements that mandate full backing by permissible investments. Circle's USDC is one of the few stablecoins that holds a New York trust charter, a status that subjects it to regular examination and reporting requirements. Tether, by contrast, does not operate under any US state or federal stablecoin framework.

The European Union's Markets in Crypto-Assets regulation, which took full effect in December 2024, imposes reserve requirements that are stricter than those proposed in the GENIUS Act. MiCA requires stablecoin issuers to hold at least 60% of reserves in cash deposits at EU banks, with the remainder in highly liquid financial instruments. Tether's USDT has not been authorized under MiCA, and several EU exchanges delisted the token in late 2024 and early 2025 in anticipation of the regulation's full implementation.

The revenue question is central to the regulatory debate. If stablecoin issuers are required to share interest income with token holders, the business model would change fundamentally. No major regulatory proposal has yet included such a requirement, but the issue has been raised in congressional hearings and academic literature. The outcome of this debate will determine whether Tether and Circle continue to earn billions from Treasury yields, or whether that revenue is redistributed to the users whose deposits generate it.