Written by Daniel Okafor
A new BIS speech argues that stablecoins still behave more like brittle market instruments than true money, which should worry anyone pricing them as the inevitable future of payments.
The stablecoin lobby has spent the last year talking as if regulatory legitimacy were already won. The Bank for International Settlements just reminded everyone that the harder question is not whether stablecoins are useful, but whether they actually function like money. In a speech delivered in Tokyo on April 20, BIS General Manager Pablo Hernández de Cos acknowledged that stablecoins offer programmability and some cross-border payment advantages, yet argued that today’s structure still leaves them far short of the “singleness” and interoperability that make money work at scale (BIS speech).
That is more than technocratic throat-clearing. It is a direct challenge to the market’s preferred narrative. The speech notes that global stablecoin market capitalization was about $315 billion in early April 2026, but it also points out that this is tiny relative to bank deposits and that real-economy payment use remains modest. Annual transaction volumes may look enormous, yet BIS cites estimates showing only around $390 billion of payment-related flows in 2025, with the bulk of activity still tied to crypto trading and collateral use rather than commerce (BIS speech). In plain English: stablecoins are big, but they are not yet money in the everyday sense that matters.
The speech becomes more interesting when it explains why. Hernández de Cos argues that stablecoins remain weak on two dimensions that traditional money solves almost invisibly: exact par acceptance and seamless movement across platforms. On public blockchains, the “same” token on different chains can become functionally fragmented, forcing bridges, wrappers and extra conversion steps. That is not a feature of superior money. It is a symptom of unfinished plumbing.
Then comes the real warning. If stablecoins do scale widely in their current form, BIS sees consequences for bank funding, credit provision, anti-money-laundering enforcement, capital controls and monetary sovereignty. The speech is particularly blunt on financial integrity, saying this is the major concern because stablecoins circulate on public blockchains and through unhosted wallets that sit only partially inside the regulatory perimeter (BIS speech). That should land badly for investors still pretending that stablecoin growth is simply a cleaner version of fintech adoption.
The contrarian read is that this does not kill the stablecoin trade. It clarifies it. Stablecoins are probably not replacing the banking system in one leap. They are becoming a contested layer between crypto markets, dollar demand abroad and state financial power. That is a very different asset story from the one many bulls prefer. It suggests that the next winners may not be the issuers with the most aggressive growth, but the ones most able to survive a world of ring-fencing, chain fragmentation and increasingly explicit demands for identity, redemption guarantees and backstops.
So the BIS speech matters because it punctures the lazy idea that adoption alone settles the debate. It does not. Scale without monetary coherence can produce fragmentation, not progress. The market wanted a triumphal stablecoin narrative. What it got instead was a reminder that money is still, in the end, a public coordination problem.
