A significant yet often overlooked transformation is reshaping the global financial landscape: the emergence and rapid growth of stablecoins. These digital assets, usually tied to the value of the US dollar, offer a stable alternative to highly volatile cryptocurrencies. They combine the advantages of digital tokens, including fast settlement and programmability, with a predictable valuation. This makes them increasingly attractive for payments, trading activity, and storing value across both the crypto ecosystem and a growing number of emerging markets.
Simple design, large impact
The core design of fiat-backed stablecoins is straightforward. They maintain their value by being fully backed by a reserve asset. For most large issuers, this means a portfolio of short-dated US Treasuries, Treasury repos, and cash-like instruments. This structure keeps the token close to par while generating meaningful interest income for the issuer, especially in a period of higher policy rates.
This model stands in contrast to a potential US central bank digital currency. A CBDC has been effectively halted by executive order, while stablecoins have emerged as a private-sector version of a digital dollar, providing functionality that traditional banking systems often do not offer, especially outside the United States.
Under the GENIUS Act, payment stablecoins must be fully backed by highly liquid dollar assets and are explicitly carved out from the definition of “securities” in existing investment laws. At the same time, the law goes out of its way to say a stablecoin is not a “deposit” in the regulatory sense. That does not stop the economic debate: some argue that if an issuer takes money, invests it in safe assets, and gives you a token that you can redeem at par on demand, it is performing a narrow form of banking in all but name.
Bank, money-market fund, or ETF?
Critics have long argued that stablecoin issuers look less like banks and more like money-market funds. The logic is simple: both take cash, invest it in short-term assets, and issue claims that are meant to be redeemable at a fixed value. The important difference is that banks create money when they make loans, using fractional reserves, while stablecoin issuers under the GENIUS framework are not allowed to lend and must hold fully matched reserves.
Others push the analogy further and suggest that stablecoins function more like money-market ETFs than like bank deposits. Retail holders of major stablecoins generally cannot redeem directly with the issuer. For example, Tether requires a minimum redemption size of 100,000 dollars and charges a 0.10% redemption fee, which is only available to verified institutional counterparties. Most users buy and sell on exchanges instead. In practice, the peg depends on arbitrage desks that can create and redeem in bulk, very similar to ETF authorized participants. Academic work on stablecoin runs explicitly models this two-tier structure, with ordinary holders trading in a secondary market and specialized arbitrageurs interfacing with the issuer at one dollar.
From the perspective of the average user, this means that a stablecoin balance is not a simple insured bank deposit. It is a claim that stays at par as long as arbitrageurs have the balance sheet capacity and risk appetite to keep the price pinned close to one dollar. In calm conditions, this works well. In stress, the dependence on a small group of intermediaries can become a vulnerability.
Banking competition and systemic concerns
The rise of stablecoins raises important questions for banks and financial stability. Because stablecoins allow users to hold digital dollars and move them globally with minimal friction, they compete directly with bank deposits. Bank lobby groups have warned that, if left unchecked, stablecoins and high-yield “rewards” programs on crypto platforms could siphon off a substantial share of deposits and payment volume, raising banks’ funding costs and weakening credit creation.
Some banks have concluded that the best response is to enter the game rather than fight it. Several major US and European banks are now exploring consortium-backed stablecoins and tokenized deposit products. Reports indicate that large US banks, including JPMorgan, Bank of America, Citigroup, and Wells Fargo, are working on joint stablecoin or deposit-token initiatives, while European banking groups are considering euro-denominated tokens. The logic is straightforward: if customers want programmable digital dollars, it is better for banks to offer them inside the regulated system than to cede that space entirely to crypto-native issuers.
Systemic risks also emerge from the structure of stablecoin reserves. Issuers hold large volumes of short-term US government debt. If many users try to redeem their stablecoins at once, issuers may be forced to sell Treasuries quickly. Research by central banks has highlighted that such fire-sales, driven by redemptions from money-like funds, can transmit stress directly into sovereign bond markets.
This is not theoretical. During the Silicon Valley Bank episode, one of the largest dollar stablecoins temporarily lost its peg after it became public that a portion of its reserves was stuck at the failed bank. Holders were eventually made whole once bank deposits were guaranteed, but the incident showed how custodial risk at an “insured depository institution” can undermine confidence in even fully collateralized structures.
Regulation and the GENIUS Act
In response to these developments, the US has enacted the Guiding and Establishing National Innovation for US Stablecoins Act. The GENIUS Act is the first federal law that creates a comprehensive regulatory framework for payment stablecoins.
Key elements include:
- Only licensed issuers, either banks or specially approved non-bank entities, may issue payment stablecoins in the United States after a three-year transition period.
- Each token must be backed one-for-one by permitted reserve assets, which include US dollars and central bank reserves, demand deposits at insured depository institutions, and US Treasuries and similar obligations with short remaining maturities, along with repos and certain money-market funds that themselves hold only these assets.
- Issuers must provide regular disclosures about their reserves and, above a size threshold, are subject to annual audits and minimum capital and liquidity standards.
- Issuers are prohibited from paying interest or yield on payment stablecoins simply for holding them. The idea is to keep stablecoins focused on payments and to discourage very large uninsured balances that could accelerate deposit flight out of banks.
The Act also makes it illegal to issue payment stablecoins in the United States without being a permitted issuer, with significant civil and criminal penalties. At the same time, it clarifies that compliant payment stablecoins are not treated as securities under key federal securities laws, avoiding an overlapping regulatory regime.
If regulators were to insist that reserves consist only of Treasury bills, stablecoins would start to look very close to government-only money-market funds. That might further increase demand for bills but it would complicate day-to-day payment operations, which still require some bank deposits and central bank reserves to settle flows between the crypto world and the banking system. It could also intensify volatility around US debt-ceiling episodes or periods of strained T-bill liquidity.
In practice, the GENIUS framework creates a kind of “banking lite.” Stablecoin issuers can accept funds, invest them in safe short-term assets, and offer par convertibility, but they cannot extend credit or compete on deposit rates. The structure is designed to preserve the usefulness of digital dollars for payments while minimizing run risk.
Global effects and the dollar’s expanding reach
As US regulation takes shape, global adoption of stablecoins continues to grow. The European Union has implemented its own regime through MiCA, and other jurisdictions are building licensing systems for fiat-backed tokens. Despite these differences, dollar-based stablecoins dominate the market. IMF work and market data show that the two largest issuers, Tether and Circle, together account for the majority of global stablecoin supply and hold Treasury portfolios that now exceed the US government bond holdings of some mid-sized sovereign investors, including Saudi Arabia and Germany, and are approaching those of Norway.
Several large institutions expect this market to grow into the trillions. Public projections from international banks and US officials envision stablecoin circulation reaching between 2 and 3 trillion dollars by the end of the decade, assuming current trends in adoption continue.
Much of that demand is likely to come from outside the United States. Federal Reserve Governor Stephen Miran has argued that, because US residents already have easy access to insured deposits and money-market funds, the main uptake for non-interest-bearing stablecoins will be in countries where households and firms cannot easily access dollar instruments. In those markets, a token that tracks the dollar closely and can be held in a simple wallet is effectively a synthetic offshore dollar account.
This has several important consequences:
1. Digital dollarization
Stablecoins have become a preferred savings and payment tool in many emerging markets, especially where local currencies are unstable or capital controls are tight. IMF analysis finds that gross stablecoin flows are largest relative to GDP in regions such as Latin America, Africa, and the Middle East, and that most flows are cross-border. This amounts to a new, bottom-up form of dollarization that bypasses local banks.
2. Structural demand for US Treasuries
Because payment stablecoins under GENIUS must be fully backed by liquid dollar assets, their growth directly supports demand for T-bills and other short-dated US government securities. Miran has compared the potential effect of a global “stablecoin glut” to the earlier “global savings glut” that former Fed Chair Ben Bernanke described in 2005, arguing that large foreign holdings of dollar stablecoins could put measurable downward pressure on US interest rates. Estimates from recent speeches and commentary suggest that the impact on front-end yields could be on the order of a few tenths of a percentage point if issuance reaches the low trillions.
3. Bond glut for everyone else
European policymakers have taken a different angle. Isabel Schnabel of the ECB has argued that the world has moved from a global savings glut to a global bond glut, with abundant public debt now pushing up the natural rate of interest. If stablecoins channel even more global savings into US Treasuries, they may reinforce demand for US paper while leaving non-US sovereign bonds facing higher term premia and weaker foreign sponsorship. In that sense, the bond glut may end up concentrated in non-US markets.
4. Privatized seigniorage and policy spillovers
Economist Hélène Rey has warned that widespread global use of dollar stablecoins for payments would effectively privatize part of US monetary seigniorage, allowing private issuers and platforms to capture income that would otherwise accrue to the public sector, and potentially enabling more tax evasion and capital flight. She also notes that the backing of dollar stablecoins can lower demand for non-US government bonds and increase demand for US Treasuries, shifting the geography of fiscal risk.
For the United States, this mix of effects strengthens the “exorbitant privilege” of the dollar. For other countries, especially in Europe and emerging markets, it raises uncomfortable questions about monetary sovereignty and financial stability.
A new element in monetary policy transmission
Stablecoins do not just affect banks and bond markets. They also feed back into monetary policy.
First, if households and businesses move a portion of their liquidity from bank deposits into stablecoins, the link between the central bank policy rate and bank credit conditions weakens. Banks may need to pay more for deposits or lean more on wholesale funding, which can change how policy moves pass through to lending.
Second, a large and stable pool of T-bill demand from global stablecoin holders would tend to support lower yields at the short end of the curve relative to what would otherwise prevail. Miran has suggested that this effect, combined with the extra supply of loanable funds from foreign savings flowing into dollar assets, could lower the neutral interest rate and obligate the Fed to run somewhat lower policy rates than in a world without stablecoins.
Third, by making it easier for foreign residents to hold and transfer dollars, stablecoins can reinforce the dollar’s safe-haven status in periods of stress. That may support the currency, but it could also amplify global spillovers from US monetary policy and regulation.
Tokenized deposits as an alternative path
One open question is whether privately issued stablecoins are the only way to capture the benefits of tokenized money. Some banks and payment networks are already experimenting with tokenized deposits that move on permissioned blockchains but remain conventional bank liabilities, with full access to deposit insurance and central bank backstops.
In such a model, the speed and programmability of stablecoins are combined with the protections of the existing banking system. If these experiments scale, stablecoins might eventually settle into a more specialized role inside crypto markets, while tokenized bank money dominates mainstream payments.
Conclusion
Stablecoins have evolved far beyond a simple tool for trading crypto assets. They are becoming an important part of the global monetary system. Their design is simple, but the consequences are far-reaching. They provide a digital form of the US dollar that is programmable, globally accessible, and backed by safe assets.
Their growth creates both opportunities and risks. Stablecoins can make payments faster and cheaper, broaden access to stable money, and support demand for US Treasuries. They also challenge traditional banks, pose run risks, and create new transmission channels between digital assets and the Treasury market. Under the GENIUS regime, they sit somewhere between a narrow bank, a money-market fund, and an ETF, with the economic substance of a payment bank but the legal form of a tightly constrained non-bank issuer.
The GENIUS Act represents a major step toward building a safer, clearer framework for this new form of digital money. The broader effects on banking, global capital flows, and the international role of the dollar are only beginning to emerge. What is already clear is that stablecoins are no longer peripheral. They are part of a broader shift in how money moves, how global savings are allocated, and how digital dollars circulate across borders. That shift will shape both the upside for the dollar and the structure of the US Treasury market in the years ahead.