Tether CEO Challenges BIS Critique on Stablecoin Reserve Models

Tether is pushing back on the Bank for International Settlements' latest caution on stablecoins, with CEO Paolo Ardoino arguing that fully reserved tokens like USDT pose a structural challenge to fractional-reserve banking. The exchange, captured across coverage from TradingView, comes as the industry digests a Jackson Hole speech by BIS General Manager Pablo Hernández de Cos favoring tokenized bank deposits over stablecoins. For payments and treasury teams, the disagreement is not theoretical — it sits at the center of how digital dollar settlement rails will be built, owned, and regulated.

What BIS flagged, and how Tether answered

De Cos identified three structural gaps in stablecoins at the Jackson Hole symposium: "singleness," since stablecoins can deviate from par in secondary markets; "interoperability," given fragmentation across incompatible chains; and "financial integrity," because most balances sit in self-custodied wallets outside traditional monitoring. He also warned of macro-level risks: deposit migration could raise bank funding costs, and issuers could face run risk if redemptions force rapid reserve sales.

Ardoino responded by reframing the risk. According to TradingView, he said the BIS was "rightfully worried" that stablecoins expose a fractional-reserve problem in traditional banking, and argued that USDT is backed by liquid assets such as U.S. Treasuries. He contrasted that with tokenized bank deposits, describing them as uninsured and reserved at roughly 10 percent. Ardoino's question to the room: why would anyone opt for fractional-reserve exposure when a fully reserved alternative is available? His conclusion: the market is now in the "find out phase."

Why the dispute matters for settlement design

The fight is really about who owns the next generation of payment rails. De Cos's preferred model keeps tokenized deposits inside the regulated banking perimeter; Ardoino's framing pushes issuers outside it, anchored to liquid reserves. For merchant acquirers and cross-border operators, the answer determines who captures float, who bears KYC costs, and where the settlement layer sits on the balance sheet.

The wider policy picture is already moving. The GENIUS Act set a federal framework for stablecoin payments, and the CLARITY Act is working through Congress, with bank trade groups pressing for customer-identification duties to extend into secondary markets. Meanwhile, payment networks and exchanges are signing their own deals: Visa struck stablecoin agreements with two South Korean institutions in one week, and the operator of Korea's largest exchange is among the counterparties.

What banks and merchants should track

Three signals will show where the rails land. First, whether stablecoin issuers publish real-time, independent reserve attestations — the BIS singled out redemption-at-par risk, and transparency is the cheapest way to neutralize that critique. Second, how secondary-market KYC rules are written under CLARITY, since that decides whether exchanges and wallets absorb compliance costs or issuers do. Third, the pace of bank-led stablecoin and tokenized-deposit consortia going live, including the U.S. industry alliance targeting a 2027 launch and the reported multicurrency joint venture among global banks.

For now, USDT traded flat over the past 24 hours, and retail sentiment cooled from bullish to neutral, according to TradingView. The price action suggests the market is digesting rather than repricing. The real shift will come when a regulatory line is drawn — and when the first major bank decides whether to compete with, or rent from, the stablecoin layer already in operation.