ECB Stress Tests Euro Banks on Geopolitical Risks

The European Central Bank's Banking Supervision division has completed a 2026 thematic stress test examining how 110 euro area banks manage geopolitical risk. The exercise was designed to strengthen banks' capital and recovery planning in light of heightened global tensions and associated economic uncertainty.

In this reverse stress test, the ECB provided participating banks with a predetermined capital depletion target and asked each institution to develop its own geopolitical risk scenario that would produce that outcome. This approach differs significantly from the biennial EU-wide solvency stress tests conducted with the European Banking Authority and reflects the ECB's focus on geopolitical risk as a supervisory priority through 2028.

Most banks demonstrated a sound understanding of how geopolitical events could affect their income, solvency and liquidity positions through various transmission channels. However, the test revealed several areas requiring improvement:

• Scenario granularity: Some banks used overly simplistic approaches when calibrating scenarios and translating them into risk factors, which may not adequately capture the complex ways geopolitical risks can impact financial institutions.
• Scenario consistency: Several banks failed to clearly connect their stress simulations to their most vulnerable and geopolitically exposed portfolios, or did not consistently translate scenarios into measurable solvency and liquidity impacts.
• Balance sheet assumptions: Some institutions appeared too optimistic about their ability to maintain or expand business volumes during economic downturns triggered by geopolitical shocks.
• Mitigation plans: Banks need to develop realistic and well-prepared action plans to address negative geopolitical impacts, rather than relying on theoretical responses.

The ECB emphasized the value of banks considering multiple scenario outcomes and using exploratory scenario analysis as a core risk management tool. Banks are expected to incorporate these findings into their internal capital adequacy assessment processes and improve the sophistication of their stress-testing frameworks.