Washington's $200 Billion Stablecoin Bid: Why Digital Dollars Could Export Treasury Risk, Not Just Demand

John Grey — Macro & cross-asset desk

Washington has found a new way to talk about Treasury demand: make the dollar programmable, portable and available far beyond the US banking system. The administration is weighing public-private ventures to promote dollar-backed stablecoins overseas, according to a Sept. 23 report by Bloomberg. The obvious pitch is geopolitical, that digital dollars can reinforce the greenback's reserve-currency status. The less comfortable conclusion is that the plan would also export a balance-sheet link between private money and US government debt, making redemption risk a Treasury-market problem.

The proposal is still at the discussion stage. Bloomberg reported that the Treasury Department, State Department and US International Development Finance Corporation are considering ways to support overseas stablecoin projects, but that no partners, funding commitments or rollout timetable have been announced. Even so, the policy logic is clear. A stablecoin backed one-for-one by cash and short-dated government securities is a private payment instrument that can create a new buyer of Treasury bills every time its circulating supply grows.

Francis Brooke, deputy secretary of the US Treasury, put a number on that buyer base in remarks at the Treasury Market Conference on Sept. 22. “Stablecoin providers represent another important source of demand and already own nearly $200 billion of Treasury bills and other close-to-maturity Treasury securities,” Brooke said in the Treasury Department's published remarks. He added that providers may continue to grow and add to their holdings as rules implementing the GENIUS Act are finalized. That is a meaningful stock of demand, but it is not the same thing as a guaranteed marginal bid for the next auction.

The reserve asset is also the transmission channel

Stablecoins have grown quickly enough to become a short-term fixed-income story rather than a niche crypto story. Carolyn Wilkins, an external member of the Bank of England's Financial Policy Committee, wrote in a Sept. 15 speech at Queen's University Belfast that stablecoins in circulation had reached roughly $300 billion by mid-2026, up from less than $5 billion at the start of 2020. The market is overwhelmingly dollar-based: “Today, about 98 percent of stablecoin value is denominated in US dollars,” Wilkins said in the Bank of England speech. “The dollar therefore has a considerable first-mover advantage as stablecoins move beyond their original role in crypto markets.”

The mechanics are straightforward. A user sends dollars to an issuer and receives a token that is meant to remain worth one dollar. The issuer invests the reserve in eligible assets, generally cash, Treasury bills, repurchase agreements or a government money-market fund. The token can then move across borders around the clock, outside the schedule of correspondent banks. The appeal is strongest where bank transfers are slow, expensive or difficult to access, and where a dollar-linked asset is more credible than the local currency.

That is the part of the story Washington wants to scale. Michael Faulkender, former deputy secretary of the Treasury and a finance professor at the University of Maryland's Robert H. Smith School of Business, wrote in a Sept. 11 paper that “payments evolution is also a national security question” and that “the dollar's reserve role is an instrument of American power.” His university summary argues that dollar stablecoins could make international payments cheaper while strengthening demand for Treasury securities.

There is real value in that proposition. The Federal Reserve has described payment stablecoins as digital assets designed to maintain a one-to-one value against the dollar and backed by relatively safe assets such as deposits, short-term Treasury securities and balances at a Federal Reserve Bank. The Fed's March 30 note says cross-border payments are generally slower, more expensive and less transparent than domestic payments. A token that settles directly on a blockchain can reduce some of those frictions, even if it does not eliminate compliance, custody or foreign-exchange costs.

The first investment mistake would be to count every dollar of stablecoin reserves as new Treasury demand. Some growth will simply move money from a Treasury money-market fund into a stablecoin reserve fund. Some will pull funds from bank deposits, affecting bank funding and credit creation rather than creating a clean new bid. The genuinely incremental demand comes when stablecoins attract capital that would otherwise sit in another currency, another asset class or outside the formal financial system. The size of that effect is unknowable until the overseas distribution model is clearer.

Why growth can make the market more fragile

The second investment mistake would be to treat the reserve portfolio as a one-way support for Treasury bills. The same balance sheet works in reverse. Inflows create reserve purchases. Redemptions require reserve sales. If users lose confidence in an issuer, or if a broader dollar or crypto shock makes many holders want cash at once, the issuer must turn liquid assets into dollars while the token continues to trade around the clock.

Wilkins made that asymmetry explicit. “But the same balance sheet can work in reverse,” she wrote. “Inflows mean reserve purchases; redemptions mean asset sales.” She warned that if several large issuers had to sell Treasury bills simultaneously, especially in a stressed market, they could amplify moves in yields and market liquidity. The risk is not that a $300 billion market suddenly overwhelms a roughly $32 trillion marketable Treasury stock. It is that a concentrated, fast-moving seller appears precisely when dealers and other investors are already reducing balance-sheet risk.

That distinction matters after the recent repricing in long-dated US debt. Stablecoin reserves are concentrated at the front end, so they cannot directly absorb the full duration supply problem. But the front end is the funding base for the rest of the curve. A shock that pushes bills, repo or money-market spreads wider can raise the cost of carrying Treasury positions and reduce the willingness of intermediaries to warehouse risk. A product sold as a source of Treasury stability can therefore become a source of Treasury liquidity volatility without ever being the largest holder in the market.

There is also a cross-border complication. A token can be issued in one jurisdiction, hold reserves in another, use a custodian in a third and serve users in many more. Redemption rights, insolvency treatment, supervision and crisis-management responsibilities do not automatically travel with the token. The Bank of England's framework for systemic sterling stablecoins, which Wilkins discussed in her speech, puts more weight on liquidity contingency planning, payment-system access and failure arrangements than the US framework currently does. That is a reminder that distribution can become global faster than the institutions needed to manage a run.

Circle's relationship with Binance shows how quickly the commercial rails are being assembled. Reuters reported on Sept. 22 that Binance bought a $100 million stake in Circle and entered a new five-year agreement under which Circle will pay the exchange a monthly fee to promote USDC. Circle's stablecoin had a market capitalization of nearly $75 billion at the time, according to the report. This is not a government-backed foreign project, but it is the kind of distribution partnership that can turn regulated dollar tokens into payment infrastructure rather than merely crypto collateral.

Tether's experience points in the same direction from a different starting point. Paolo Ardoino, chief executive of Tether, told The Asian Banker that before 2020, 99 percent of USDT usage was crypto trading, while “50% to 60% is not trading. It is commodity trading, remittances, cross-border payments and settlement of invoices.” The interview describes a product already embedded in emerging-market payment flows. Washington's policy question is whether a government-supported expansion would accelerate that use without importing the governance and liquidity risks that come with it.

For Treasury investors, the right framework is therefore not “stablecoins are bullish for bills.” It is a two-sided balance-sheet trade. A larger stablecoin float can create persistent demand for short-dated government debt, reduce settlement frictions and extend the dollar's network. It can also make the market more sensitive to changes in confidence, because a token that promises immediate convertibility effectively packages a reserve portfolio into a 24-hour, globally accessible claim.

The dollar's advantage is still substantial. The US has deep capital markets, a large supply of safe assets, convertibility and a legal system that remains more credible than any alternative at comparable scale. Stablecoins can reinforce those network effects by putting a digital dollar into markets that do not have direct access to US banks. But network effects are not the same as fiscal credibility. A private token cannot repair a loss of confidence in the assets backing it, and a Treasury bill cannot erase the operational and legal risks of a cross-border payment network.

Our view is that the overseas stablecoin proposal is more important as a market-structure experiment than as a crypto stimulus. Watch three things: whether any public-private venture is actually funded; whether new stablecoin growth comes from outside the existing Treasury and money-fund complex; and whether regulators require credible liquidity backstops for a run. If the first two go well and the third is ignored, Washington may get more dollar usage and more Treasury demand at the price of a new, lightly tested channel for exporting Treasury volatility.

This note is for informational purposes only and does not constitute investment advice. Market data and policy details reflect information available at publication.