In a Macroprudential Bulletin published on Monday, the ECB examined how distributed ledger technology could alter post-trade processes, with derivatives and securities financing markets among the most directly affected.

For derivatives markets, the implications are most visible in margining and settlement. Tokenisation may enable near-instant transfers, integrated collateral management and real-time verification of positions, reducing counterparty and settlement risk.

"Programmability and atomic settlement could streamline post-trade processes and improve the efficiency of collateral usage," the ECB said.

The analysis forms part of the central bank’s broader push to develop tokenised financial markets anchored in central bank money, with private instruments such as tokenised deposits and stablecoins playing a supporting role.

Collateral efficiency and market structure

Tokenised assets such as bonds and money market fund shares can be transferred and pledged on-chain, allowing counterparties to verify ownership and reuse collateral more efficiently. This could ease margining frictions and improve intraday liquidity management.

Tokenised money market funds are already being positioned for this role, supporting derivatives and repo transactions while enabling secondary trading and automated settlement.

However, increased transferability and programmability may also change market structure. Faster collateral circulation and reuse through smart contracts could facilitate leverage build-up and strengthen interconnections across participants.

"Tokenisation improves the transferability and transparency of assets, making them more accessible as collateral," the ECB said, adding that this could "foster dense, interconnected exposures among market participants".

Liquidity and run risk

The ECB cautions that these same features could amplify stress.

Tokenised instruments can be traded continuously, even when underlying markets are closed, creating a mismatch between the liquidity of tokens and that of the underlying assets. When used as collateral, this could trigger rapid margin calls and automated liquidations in volatile conditions.

Real-time transparency and programmability may also intensify herding behaviour and first-mover dynamics, leading to synchronised collateral withdrawals or asset sales.

"Instant and automated settlement may result in highly synchronised asset sales, intensifying liquidity pressures," the ECB said.

Tokenised money market funds illustrate these risks. While offering faster settlement and programmability, they retain liquidity mismatches seen in traditional funds and add new channels for runs. Secondary trading may lead to price deviations from net asset value, signalling stress and prompting redemptions.

Automated execution via smart contracts could further accelerate stress transmission, particularly where tokenised assets are widely used across derivatives and securities financing markets.

Stablecoins and settlement flows

Stablecoins are also expected to play a role in derivatives markets, particularly in margining and settlement.

The ECB notes that while stablecoins can support atomic settlement and cross-border transactions, they remain less suitable as core settlement assets due to risks around price stability, scalability and fragmentation.

As issuance grows, reserve assets such as sovereign bonds may become more closely linked to derivatives-related liquidity flows. The ECB’s analysis suggests that the pass-through from stablecoin demand to sovereign bond holdings can vary widely depending on issuer type and reserve composition, but may be significant in some scenarios.

This creates potential feedback loops between derivatives activity, collateral demand and sovereign debt markets. In stress scenarios, large redemptions could force issuers to liquidate reserve assets, amplifying volatility and transmitting shocks across markets.

The Markets in Crypto-Assets Regulation (MiCAR) requirements for reserve composition, including minimum holdings of bank deposits, may provide a buffer in some cases, but could also transmit stress to the banking system if redemptions are large.

Evidence from tokenised bonds

Evidence from tokenised bond markets points to early efficiency gains that could support derivatives activity.

The ECB finds that tokenised bonds reduce borrowing costs and exhibit tighter bid-ask spreads than comparable conventional bonds, indicating improved liquidity and lower transaction costs.

These characteristics could enhance the quality and availability of collateral, particularly if tokenised bonds are more widely accepted in margining frameworks.

However, the ECB stresses that the market remains at an early stage. Issuance volumes are limited and most tokenised bonds still rely on traditional infrastructure, with on-chain and off-chain processes operating in parallel. This limits the realisation of efficiency gains and introduces operational complexity.

Infrastructure and settlement constraints

A key constraint is the lack of integrated infrastructure.

The ECB argues that tokenisation will only scale if supported by central bank money on-chain and interoperable systems. Without this, markets risk fragmenting across multiple platforms and settlement assets, reducing efficiency and increasing operational risk.

To address this, the Eurosystem is developing infrastructure initiatives including Pontes and Appia. Pontes is expected to deliver a central bank money settlement solution for DLT-based wholesale transactions by the third quarter of 2026, while Appia will explore a broader framework for issuing, trading and settling tokenised assets.

For derivatives markets, such infrastructure could enable delivery-versus-payment and margin flows within a single programmable environment, improving settlement efficiency and collateral management.

Regulatory and operational challenges

The ECB emphasises that regulatory clarity will be critical, particularly for derivatives markets, where legal certainty around collateral, ownership and settlement finality is essential.

While MiCAR provides a framework for stablecoins and existing rules apply to tokenised funds, gaps remain around the treatment of tokenised assets in collateral frameworks and prudential regulation.

Operational risks also persist, including cyber vulnerabilities, smart contract failures, reliance on third-party providers and inconsistencies between on-chain and off-chain records.

"The net impact will depend on how tokenisation scales and how effectively new risks are managed," the ECB said, underscoring the need for robust collateral frameworks, liquidity backstops and settlement infrastructure.