Written by Romeo Kuok
Crypto markets still like to pretend that prices are the main story. They are not. The most consequential development in digital assets right now is architectural: policymakers and major institutions are beginning to accept that tokenization is no longer an experiment at the edge of finance. It is becoming infrastructure. And once finance becomes tokenized, the central question changes. The question is no longer which token will rally next. It is which form of money will settle the system.
That is why two speeches delivered within hours of one another matter more than most market headlines. In a major address on May 8, ECB President Christine Lagarde argued that stablecoins have grown from less than $10 billion six years ago to more than $300 billion today, with nearly 90% of the market controlled by Tether and Circle and almost 98% of stablecoins denominated in U.S. dollars. On the same day, Federal Reserve Governor Lisa Cook said that tokenized assets in the United States have more than doubled in the past year to around $25 billion, highlighting the potential for better collateral mobility, improved liquidity management, and faster settlement.
Read together, the speeches reveal that the debate has moved beyond “Should tokenization exist?” The real debate is now about convertibility. What kind of cash leg will sit underneath tokenized assets? Will it be private stablecoins, tokenized bank deposits, or infrastructure anchored by central bank money?
Lagarde’s intervention is especially important because it reframes stablecoins into two separate functions. One is monetary: stablecoins can extend the reach of a currency, reduce frictions in holding it across borders, and channel demand into its reserve assets. The other is technological: stablecoins act as native settlement instruments inside programmable, tokenized environments. That distinction matters because it prevents policymakers from treating one instrument as if it solved every problem.
The ECB’s concern is straightforward. If Europe embraces euro stablecoins simply because dollar stablecoins are growing quickly, it risks importing the fragilities of private money into the foundations of tokenized finance. Lagarde warned that stablecoins can introduce fragility, because they can break par in moments of stress, and fragmentation, because a system based on multiple competing private settlement assets lacks a common anchor for convertibility. In other words, a tokenized market can settle faster while becoming structurally less coherent.
Cook’s speech from the Federal Reserve does not contradict that diagnosis, but it emphasizes a different priority. Her remarks focused on the opportunities tokenization creates for collateral management, automation, composability, and funding flexibility. She noted that tokenization could improve transparency, compress settlement times, and help firms manage liquidity more efficiently across fragmented legacy systems. She also warned about run risk and new channels of stress transmission between tokenized assets and traditional finance. Yet the overall tone was clear: tokenization is becoming real enough that central banks must engage with it as a practical market structure issue, not a theoretical one.
This is the hallmark of a convertibility era. The market is no longer asking whether on-chain finance can be useful. It is asking how claims will convert across domains: tokenized securities into collateral, tokenized funds into cash equivalents, private stablecoins into sovereign money, and blockchain settlement into the legal finality of the traditional system.
That competition is already visible in the source material both central bankers cite. The BIS paper on stablecoins and safe-asset prices argues that inflows into dollar-backed stablecoins can influence Treasury bill yields, underscoring that stablecoins are not isolated crypto instruments but increasingly important channels into public debt markets. Meanwhile, the BIS paper on the international monetary effects of stablecoins points to the broader implication: widespread stablecoin use could reshape monetary sovereignty, reserve-currency competition, and financial conditions, especially in emerging markets.
In practical terms, convertibility has three competing designs.
The first is the private stablecoin model. This is the path the dollar system currently dominates by default. Stablecoins are already the working cash leg of decentralized finance and much of cross-border crypto liquidity. They move quickly, operate continuously, and integrate naturally with on-chain applications. Their weakness is that they depend on issuer credibility, reserve composition, redemption mechanics, and secondary-market confidence. When those variables come under pressure, convertibility can become conditional exactly when markets need it to be absolute.
The second is the tokenized deposit model. Banks tokenize liabilities and allow them to circulate on programmable rails. This could preserve more direct continuity with the regulated banking system, especially for wholesale use cases. But tokenized deposits do not automatically solve interoperability. If every institution creates its own digital cash island, the system can still fragment unless shared standards and settlement bridges are built around it.
The third is the public-anchor model favored by the ECB. Here the crucial goal is not to eliminate private innovation but to ensure that whatever instruments emerge remain anchored to central bank settlement infrastructure. Lagarde pointed to the Eurosystem’s Pontes project and the longer-term Appia roadmap as ways to bring distributed-ledger transactions back into a common settlement framework. The strategic wager is that if central bank-linked rails are available, Europe will not need to imitate dollar stablecoins just to participate in tokenization.
For crypto investors, the implication is subtle but profound. The winners of the next phase may not be the loudest consumer tokens or the most memetic narratives. They may be the infrastructures that make convertibility reliable: stablecoin issuers with trusted reserves, exchanges and brokers that can bridge tokenized assets into fiat balance sheets, custody providers, compliance layers, tokenized fund platforms, and payment rails that can move between on-chain and off-chain domains without introducing hidden liquidity risk.
This is also why the stablecoin conversation is becoming more geopolitical. If almost all stablecoins remain dollar-denominated, then tokenized finance becomes another channel through which the dollar extends its reach. Lagarde explicitly warned that Europe risks digital dollarization if it fails to build an alternative framework. Cook’s speech, by contrast, showed that U.S. policymakers are comfortable discussing tokenization as an increasingly normal part of market innovation, provided its risks are monitored. That asymmetry may matter as much as any single regulation.
The old crypto era was about speculative upside. The next one is about settlement credibility. Lagarde’s speech, Cook’s remarks, the BIS analysis of stablecoins and safe assets, and the BIS work on stablecoins and the international monetary system all point to the same conclusion: crypto is entering a convertibility era in which the most valuable property is not volatility, but trust in how value moves between systems.
That does not make the sector less interesting. It makes it more serious. The next battle in digital assets is not over whether money can be tokenized. It is over which money, under whose rules, and with what guarantees of redemption. In a financial system migrating on-chain, that is the question that decides everything else.
