Who Gets to Be the Digital Dollar? Inside the BIS–Tether Fight

Over the weekend, the CEO of the world's largest stablecoin called bank-issued digital money a "pinky swear," and the head of the Bank for International Settlements used a Jackson Hole stage to argue that stablecoins cannot be trusted as money. It reads like two institutions trading insults. It is actually a contest over who gets to be the digital dollar — and who gets paid while your money sits there.

To be honest, I'm less interested in who was ruder than in what the argument reveals. Stablecoins have become the crypto world's go-to version of cash: Tether's USDT alone is worth roughly $183 billion, close to 7 percent of the whole crypto market. The BIS — the club of central banks that writes the rules for global payment systems — wants the digital dollar of the future to be a "tokenized bank deposit" instead. That choice, if it sticks, would decide which companies collect the yield on the dollars people hold on-chain, and whether your digital cash is a claim on a monitored bank or on a private company. Both sides have a point, and neither can afford to admit it.

The machine both sides are bidding on

Start with the machine the whole dispute is about. USDT works like this: you hand Tether a real dollar; Tether issues a digital token that trades at about $1; Tether four-fifths of the pool in short-term U.S. Treasury bills. You earn no interest on the token. Tether keeps the yield. Because the pool has grown enormous — roughly $184 billion in outstanding tokens against assets of nearly $188 billion, per its latest attestation — a small spread on a giant base adds up to billions a quarter. Token holders are, in effect, making an interest-free loan to a private company that then lends the money to the U.S. government at Treasury rates and pockets the difference. That spread is the entire business.

A tokenized deposit is the banks' answer to that machine. When a bank converts a deposit into a token, the dollar stays inside the bank: it gets lent out to a borrower, your claim remains a bank liability, and the yield stays in the banking system. That is the point of the BIS's model — and the motive for the infrastructure now being built. In June, America's largest banks (JPMorgan, Citi, Bank of America and others) said through The Clearing House that they would build a shared tokenized-deposit network, aiming for the first half of 2027, in terms that read like a declaration of war on the alternative: a direct answer to stablecoin competition and a way to keep deposits from draining away.

What each side actually said

At Jackson Hole on Aug. 28, BIS General Manager Pablo Hernández de Cos made the establishment case. Stablecoins, he argued, don't guarantee that every token can be redeemed at exactly one dollar for a real one in a panic; they're fragmented across blockchains that don't talk to one another; pseudonymous transfers make money laundering harder to police; and a run on a big issuer could force fire sales of Treasury bills that spill into money markets. He also raised the quieter, larger worry: where people adopt a dollar stablecoin as de facto cash, the local central bank loses control of its own money supply — a process the BIS calls "digital dollarization." His conclusion: build the digital dollar out of tokenized bank deposits that settle in central-bank money, inside the two-tier system we already have.

Ardoino's counter, posted Sunday, aimed at the soft underbelly of banking. Stablecoins, he wrote, are "100% reserved by liquid assets (ie., treasuries)." Tokenized bank deposits are "pinky swear uninsured bank deposits (usually only 10% reserved by liquid assets)" — because the rest of every deposit has been lent out. The BIS, he said, is "rightfully worried" that stablecoins expose the "fractional-reserve problem" underneath banks. Why would anyone choose a fractional-reserve product over a fully reserved one? His punchline: "We're in the find out phase."

Why both are half right

This is where the two stories part, and where your judgment comes in. The BIS is right that a stablecoin is not the same claim as a bank deposit. "100% reserved" oversells the safety: a chunk of Tether's assets sits in secured loans, bitcoin and gold, and the backing is verified by periodic attestations from an accounting firm — BDO — rather than by full audits, and it carries no deposit insurance. If Tether's assets ever fell short, token holders would stand in line as unsecured creditors, not insured depositors.

But Ardoino is also pointing at something real. A tokenized deposit is a fractional-reserve claim: the bank has lent out most of your dollar, and only a slice is held in liquid form. What the BIS's pitch leaves unsaid is that the two things that make a bank deposit feel safe — government deposit insurance up to $250,000 per depositor in the U.S., and a central bank willing to lend to a solvent bank in a crisis — are precisely the backstops a stablecoin issuer does not have. Both products are IOUs of a kind. They differ in who owes you, who backs the promise, and who collects the interest on your money while it sits there. That difference is the fight.

What it means for the money side

The economics underneath deserve more attention than the rhetoric. Tether is private — there's no stock to buy — and its business turns out to be a rate-and-rules play in a crypto costume. Its profit was about $13.7 billion in 2024, when short rates were high, then fell to just over $10 billion in 2025, and by the second quarter of 2026 it was about $1.5 billion — with the safety cushion, the assets above what Tether owes token holders, narrowed to roughly $4 billion after a market slump hit the bitcoin and gold it holds. The float grew — more USDT issued than ever — but the yield per dollar shrank as the Fed cut rates. Growth and financial health parted company, and that parting has nothing to do with BIS tweets.

The rules decide the rest, and the timeline is already visible. Europe's MiCA regime pushed USDT off licensed EU exchanges because Tether never sought the authorization. The U.S. GENIUS Act, signed in July 2025, set up the first federal framework for licensed stablecoin issuers — a credential an offshore, unlicensed Tether sits outside. The banks' 2027 network is the physical bet on the other side, and the BIS is the standards body trying to make tokenized deposits the international default. Meanwhile the user growth is happening somewhere else entirely: Tether says its user base has passed 650 million, expanding fastest in emerging markets — precisely where tokenized deposits barely exist and where the BIS's digital-dollarization worry is not academic.

This is not, by itself, a reason to buy or sell anything. It is a way to read what you hold. If you use USDT as your "cash" on an exchange, you now have the full label: a zero-interest, uninsured claim on a private company, backed mostly by Treasury bills but verified by attestation rather than audit. If you want a public-market expression of the same economics, the regulated cousin Circle — which runs USDC and listed on the NYSE in June 2025 — trades the same spread under U.S. supervision, on the opposite side of the BIS's preference. If you own bank stocks, the same fight shows you where the industry's strategic capital is flowing.

The BIS and Tether both want you to believe the other side's product is the unsafe one, and that is the least useful part of the argument. The useful part is what the fight makes visible: the future of money is being settled in standards bodies, legislatures and bank networks rather than in markets, and the winner is whoever gets its claim accepted as the default settlement layer. When you're deciding where a dollar should live, read the fine print on the claim first — reserve composition, audit versus attestation, insurance, and who stands behind the lender — and then watch which rail actually wins the networks. That is where the risk, and the reward, will show up.