How Tether’s Treasury Bill Engine Paid for an AI Expansion

1. The reserve controversy that came before the record profits

The modern Tether balance sheet is easier to understand when the old dispute is stated precisely. In October 2021, the U.S. Commodity Futures Trading Commission ordered Tether companies to pay $41 million. The order found that, during a 26-month sample from 2016 to 2018, sufficient fiat currency sat in designated bank accounts on only 27.6% of the days. It also found that reserve disclosures included receivables and non-fiat assets while marketing had emphasized dollar backing. Those are regulatory findings about historical representations; they are not proof that every USDT was unbacked, nor a current insolvency finding. ^[1]

Tether’s response became a balance-sheet migration rather than a rhetorical victory. On October 13, 2022, the company said commercial paper had fallen to zero and that the remaining exposure had been replaced with U.S. Treasury bills. This change reduced the credit-analysis burden attached to private short-term debt and made the reserve story depend increasingly on government securities, money-market funds, reverse-repurchase agreements and cash. ^[2]

That shift also changed how Tether earned money. A token holder supplies one dollar of value for one USDT but does not receive the interest generated by reserve assets. When short-term rates rose, a very large pool of low-duration government debt could generate substantial income for the issuer. The mechanism is striking without describing it as secret, risk-free or unprecedented.

2. Cantor Fitzgerald made the custody relationship visible

On January 16, 2024, Howard Lutnick, then chief executive of Cantor Fitzgerald, spoke publicly about a relationship that had attracted speculation. Bloomberg reported that Cantor served as a custodian for Tether assets and that Lutnick had reviewed part of Tether’s balance sheet. His statement mattered because Cantor is a major broker in U.S. government securities. It did not amount to a public audit of every Tether entity, account and liability. ^[3]

“I manage many, many of their assets.”^[3]

— Howard Lutnick, then CEO of Cantor Fitzgerald

The distinction is essential. Custody means holding or servicing assets; an attestation addresses information and a date defined by its engagement; a full financial-statement audit has a broader scope. Lutnick’s confidence and Cantor’s role provided evidence against the claim that no assets existed, but neither converted a private reserve report into a government guarantee. In February 2025, Lutnick was sworn in as U.S. Secretary of Commerce after leaving Cantor. That later appointment does not make Tether an arm of the Treasury or prove that stablecoin purchases are coordinated debt policy. ^{[3], [5]}

3. What the $113 billion and $13 billion figures actually measure

Tether’s report for December 31, 2024 said reserves for tokens in circulation were $143.70 billion and token-issuer liabilities were $136.62 billion, leaving a $7.09 billion reserve excess. It reported more than $13 billion in group net profit for 2024. Tether attributed about $7 billion to Treasuries and repo agreements, about $5 billion of unrealized gains to gold and Bitcoin, and roughly $1 billion to other traditional investments. The profit was therefore not simply Treasury interest and should not be presented as pure operating income generated by a tiny staff. ^[4]

The same release described $113 billion of direct and indirect U.S. Treasury exposure. ‘Indirect’ matters: the total included instruments such as overnight reverse repos and money-market exposure, not only Treasury securities registered to one foreign holder. The Treasury International Capital country table, by contrast, groups reported foreign holdings by jurisdiction and methodology. Ranking Tether as the ‘seventh-largest sovereign creditor’ mixes a corporate disclosure with a country table and changes both the holder and the denominator. Tether itself later used an 18th-place comparison, but that remains its comparison rather than an official sovereign rank. ^{[4], [11]}

The scale continued. For December 31, 2025, Tether reported nearly $193 billion in reserve assets, more than $10 billion in annual profit, over $122 billion of direct Treasury holdings and $141 billion of direct and indirect exposure. Those figures show a large private buyer of short-term U.S. debt. They do not show that the United States depends on Tether for financing, or that a redemption wave would automatically destabilize Treasury auctions. ^[9]

4. The spread belongs to the issuer; the token remains a redemption product

The economic engine is a spread. Customers and markets create demand for a non-interest-bearing dollar token; Tether invests the corresponding reserve pool; the group keeps the return after costs, losses and additions to the reserve buffer. USDT holders have a claim defined by Tether’s terms, not a share of the reserve portfolio or of Tether Holdings. They do not receive increases in reserve value above the token’s face value. ^[10]

Direct redemption is also narrower than selling USDT on an exchange. Tether’s February 2026 information document says a customer must pass verification, satisfy eligibility checks and meet a $100,000 minimum. The redemption fee is the greater of $1,000 or 0.1%. Secondary-market users may trade smaller amounts, but their exit price and access depend on venues and counterparties rather than an unconditional retail window at the issuer. ^[10]

This boundary explains why the reserve report separates backing from venture activity. Tether says proprietary investments in energy, mining, AI, telecommunications and education are not counted in the reserves for issued tokens. That separation protects the stated reserve calculation from being filled with venture valuations, while also making clear that a USDT holder does not own those ventures. ^{[4], [9], [10]}

5. Treasury income opened a door to AI, but not an AI claim for USDT

Tether’s expansion beyond stablecoins began with identifiable transactions. In September 2023 it announced an investment in Northern Data Group through a group company, describing high-performance computing and AI as the target and stating that the investment was separate from token reserves. In April 2024 it announced a $200 million investment through Tether Evo that made it the majority shareholder of brain-computer-interface developer Blackrock Neurotech. ^{[6], [7]}

The product ambition became more concrete in May 2025 with QVAC, a proposed local-first platform for running AI applications and agents on user devices. Tether said it planned peer-to-peer components, local inference and an open-source software development kit. These were company descriptions of an emerging product, not evidence that Tether had become one of the world’s largest AI-compute operators. ^[8]

“If you need an API key to use your AI, it isn’t truly yours.”^[8]

— Paolo Ardoino, Tether CEO

The durable story is more specific than the old ‘megacorp’ label. Reserve reform and higher short-term rates produced a powerful profit engine; Cantor supplied an important custody bridge to the Treasury market; Tether then directed corporate capital into computing and biotechnology. The same evidence sets limits: quarterly attestations are not full audits, aggregate Treasury exposure is not a sovereign-country ranking, Lutnick’s cabinet post is institutionally separate, and USDT conveys neither AI equity nor reserve yield.