The European Central Bank released its biennial report on financial integration and structure in the euro area on 7 May 2026, and the headline numbers suggest progress. Price-based and quantity-based indicators of financial integration have risen to levels above their historical averages, underpinned by a sustained decline in redenomination risk premia and supported by EU-level policy initiatives such as the Next Generation EU programme. Cross-border activity has increased across market segments, facilitating greater risk sharing and helping make the euro area financial system more resilient. Financial integration has strengthened most visibly in debt markets and interbank lending.

But the report's more significant contribution is what it confirms about what hasn't changed. The EU's capital markets remain too fragmented and inefficient to mobilise the vast pool of EU savings needed to meet significant investment needs, in particular in key strategic sectors. Cross-border corporate lending within the euro area accounts for just 14% of total corporate lending, with equity market integration showing troubling signs of decline since 2022. Foreign direct investment within the euro area has fallen to a historical low, shining a light on the structural barriers that still hinder seamless capital flows.

For a group treasurer operating a multi-entity structure across European jurisdictions, this is the regulatory documentation of a problem you already know intimately. Every nostro account you maintain with a correspondent bank in another jurisdiction represents trapped liquidity, capital that sits idle because reallocating it across borders remains operationally slow, politically contested between entities, and expensive to execute. The settlement of cross-border payments continues to be executed in a non-instantaneous manner owing to fragmented data and message formats and different operating hours of RTGS systems.

The mechanics are familiar. A service-providing bank opens an account for the respondent bank which is, from the perspective of the respondent bank, a nostro account. If the domestic bank does not hold a nostro account in the foreign bank it can use the account of a third-party bank, which will be referred to as a loro account. Settlement is made by crediting and debiting the respective accounts. This correspondent banking architecture has served international commerce for centuries, but it was never designed for treasury teams managing real-time liquidity across dozens of legal entities.

The cost structure compounds with every layer. For too long cross-border payments have faced four particular challenges: high costs, low speed, limited access and insufficient transparency. These aren't just pain points for retail remittances, they're the same frictions that force corporate treasury to over-fund nostro accounts as a buffer against settlement uncertainty, tying up working capital that could otherwise be deployed productively.

The G20 Roadmap for Enhancing Cross-Border Payments, coordinated by the Financial Stability Board, set ambitious targets for 2027: 75% of cross-border wholesale payments credited within one hour, with the remainder settled within one business day. Jurisdictions' implementation of the Roadmap's policy recommendations has been uneven, and improvements in end user outcomes remain limited. It is unlikely that the G20's quantitative targets will be met by end-2027. The infrastructure isn't moving fast enough.

The ECB's response has been to build alternative rails. The ECB continued to work on a strategy to enable a tokenised European financial ecosystem. It consists of two initiatives: Appia, which is exploring how to create the necessary architecture, and Pontes, which aims to enable the settlement in central bank money of wholesale financial transactions based on distributed ledger technology. This strategy supports efficiency and innovation, strengthens the EU's strategic autonomy, and creates an opportunity to design integrated market infrastructures from the ground up.

Pontes is the Eurosystem's distributed ledger technology solution that links market DLT platforms and TARGET Services to settle transactions in central bank money. The project builds on the successful results of the exploratory work on new technologies for wholesale central bank money settlement. The Eurosystem will launch a pilot for Pontes by the third quarter of 2026. Through a combination of analytical and practical work, the Eurosystem will assess possible DLT network configurations, aiming to deliver by 2028 a blueprint with key findings, recommendations and principles for a safe, innovative and integrated tokenised financial ecosystem in Europe.

The European Commission has framed this infrastructure work within its Savings and Investments Union strategy. An estimated €10 trillion of household savings are currently held in the EU in low-yield bank deposits rather than being invested in capital markets, where potential returns could be higher. This mismatch prevents savings from being used effectively to support business investments and the broader real economy. The problem isn't confined to retail investors; the same fragmentation that prevents efficient allocation of household savings also prevents corporate treasury from efficiently deploying working capital across borders.

What makes the ECB's latest report operationally significant is not the promise of future infrastructure but the explicit documentation of present inefficiency. When your CFO asks why treasury maintains nostro balances that generate sub-optimal returns, you now have regulatory backing for the answer: the euro area's financial architecture requires you to pre-fund liquidity in multiple jurisdictions because cross-border settlement remains too slow and too uncertain to manage on a just-in-time basis.

This reframing has internal consequences. A treasury team that positions its nostro account structure as prudent risk management is making a defensible operational choice. A treasury team that positions it as institutionalised capital inefficiency, documented as such by the central bank, creates permission to propose alternatives. The difference is not semantic; it determines whether consolidation of cross-border settlement becomes a strategic priority with budget and governance support, or remains an aspirational efficiency project that never quite makes it to the front of the queue.

The ECB has provided the diagnosis. The question for treasury operations is whether to wait for infrastructure solutions like Pontes to mature, a timeline measured in years, or to begin quantifying the cost of fragmentation in terms your board will recognise: trapped liquidity, foregone yield, and competitive disadvantage against treasury functions that have already consolidated their settlement architecture.

References

[1] ECB, "Euro area financial integration improves despite persistent fragmentation, ECB report shows," press release, 7 May 2026

[2] ECB, "Deepening financial integration to support Europe's prosperity," speech by Piero Cipollone, 7 May 2026

[3] Council of the European Union, "Savings and investments union,"

[4] ECB, "Pontes,"

[5] BIS, "Enhancing cross-border payments: state of play and way forward," 2025