Stablecoins Could Cement US Dollar’s Global Supremacy, Bank of England Official Warns

Carolyn Wilkins, a member of the Bank of England’s Financial Policy Committee (FPC), has sounded a significant warning regarding the burgeoning market for stablecoins, suggesting that their widespread adoption could paradoxically reinforce the US dollar’s already dominant position in the global financial system and consequently drive increased demand for US Treasury securities. This assertion underscores the potential for the expanding digital dollar ecosystem to exert influence far beyond the confines of the cryptocurrency sphere.

In a detailed speech delivered at Queen’s University Belfast on Tuesday, Wilkins articulated how dollar-denominated stablecoins, by their very nature, possess the capacity to bolster the "greenback." This strengthening effect would stem from several key mechanisms. Firstly, stablecoins are poised to simplify and streamline cross-border settlement processes, making international transactions more efficient and less costly. Secondly, they can broaden access to dollar-linked assets for individuals and institutions located outside the United States, effectively extending the reach of the dollar’s influence. Thirdly, and perhaps most critically in the context of global finance, an increased reliance on dollar-denominated stablecoins is likely to translate into greater demand for US Treasurys, which are often held as reserves by issuers and as safe-haven assets by investors.

The scale of this potential impact is already becoming apparent. Wilkins highlighted that the largest stablecoin issuers are already substantial purchasers of US government debt. As of the end of 2025, Tether’s USDt (USDT) and Circle’s USDC (USDC), two of the most prominent stablecoins, held nearly $150 billion in Treasury bills. Furthermore, these entities collectively purchased approximately $33 billion in Treasury bills throughout that year, a figure that illustrates their significant role in the US debt market. This data, cited by Wilkins, paints a clear picture of the intertwined relationship between the stablecoin market and US sovereign debt.

However, Wilkins also cautioned that this relationship is not unidirectional; it possesses a reciprocal dynamic. The FPC member argued that the influence cuts both ways, meaning that at sufficient scale, a mass redemption event from stablecoin holders could exert considerable pressure on issuers. Faced with a sudden surge in redemptions, stablecoin issuers might be compelled to liquidate their holdings of Treasury bills. Such a scenario, Wilkins warned, could potentially amplify volatility within an already stressed financial market, particularly if these liquidations occur during periods of economic uncertainty or market stress. This highlights a potential systemic risk associated with the interconnectedness of stablecoins and the US Treasury market.

Wilkins’ pronouncements arrive at a time when stablecoin adoption is experiencing robust growth. The total market capitalization of stablecoins has surpassed $300 billion, indicating a significant and expanding presence in the digital asset landscape. Crucially, the stablecoin market remains overwhelmingly dominated by the US dollar, which accounts for an astonishing 98% of the total stablecoin value. This pervasive dominance grants the US dollar what Wilkins described as a "considerable first-mover advantage" in the digital asset realm, solidifying its foundational role in this emerging financial infrastructure.

The implications of this trend are not lost on other major financial players. In a related development, it has been reported that 21 financial institutions, including prominent names like Bank of America, Citi, and Goldman Sachs, are reportedly planning to launch their own stablecoins. This signifies a broader institutional recognition of the potential of stablecoin technology and a desire to participate in this growing market, further underscoring the relevance of Wilkins’ analysis.

In stark contrast to the dollar’s dominance, British pound-denominated stablecoins have struggled to gain significant traction. Despite this slower adoption rate, UK regulators have been actively pursuing measures to foster the development of sterling-backed digital currencies. The Financial Conduct Authority (FCA), the UK’s financial conduct regulator, has initiated a dedicated regulatory sandbox designed to test prospective stablecoin issuers, providing a controlled environment for innovation. Furthermore, in June, the FCA finalized its rules for the issuance of stablecoins within the UK.

The Bank of England has also been actively engaged in exploring the potential of digital money. This includes recent experiments aimed at assessing the interoperability of stablecoins and a simulated digital pound, particularly in the context of facilitating cross-border trade payments. This proactive approach by UK authorities reflects a strategic effort to keep pace with global developments in digital finance and to ensure the competitiveness of the pound sterling in an evolving landscape.

This shift in the Bank of England’s stance towards stablecoins is notable, especially following industry criticism of its earlier proposed regulatory framework. Some industry participants had argued that the initial proposals could stifle innovation within the nascent stablecoin sector. In response to this feedback, the Bank of England has signaled a more accommodating approach to regulation, aiming to strike a balance between fostering innovation and ensuring financial stability. This recalibration indicates a recognition of the growing importance of stablecoins and a desire to integrate them into the financial system in a responsible manner.

The challenges in navigating the global stablecoin landscape are further highlighted by observations from international bodies. The head of the World Trade Organization (WTO) has pointed out that fragmented regulations across different jurisdictions can indeed limit the broader adoption of stablecoins in international finance. This underscores the need for greater international cooperation and harmonization of regulatory frameworks to unlock the full potential of stablecoins for global trade and commerce.

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