EBA stress test: A second look

The EBA published stress test results for the major 123 European banks in October 2014. Overall 24 institutions failed the test. While 15 out of those 24 institutions are from Italy, Greece and Cyprus, the results in general were not a major surprise. This is because major banks have taken a variety of financial measures in anticipation of the stress testing results to strengthen their CET1, including the issuance of capital instruments eligible as CET1 capital, the conversion of hybrid instruments into CET1 capital and the net issuance of additional Tier 1 instruments.
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Stressed CET1 for German and Austrian banks

The observation above is illustrated by figure 1 for the banks in Germany and Austria: taking the capital measures into account, all banks, except for Oberösterreichische VB AG, have a CET1 capital ratio of more than 5.5 % for the adverse scenario.

Figure 1: Stressed CET1 for German and Austrian banks Source: EBA/own calculations

Digging into the data

Though public attention is primarily focused on the stressed capital ratios, we believe that the difference between actual and stressed capital ratios is interesting as well, since it provides additional insights on the vulnerability of banks and banking systems. In order to analyze the data published by the EBA we have calculated the “stress sensitivity” of bank capital requirements which is defined as the relative increase in CET1 in the stress scenario in order to keep the CET1 ratio constant.

Clustering stress sensitivity by business models (based on the major source of earnings) does not yield unexpected results: on average, wholesale banks are most sensitive and retail banks are least sensitive to an adverse scenario as illustrated in figure 2; note that we have weighted the sensitivities with regard to RWA to determine the averages.

Figure 2: Stress sensitivity of business models in Europe Source: EBA/own calculations

Clustering stress sensitivities by bank origin provides an additional perspective as shown in figure 3.

It confirms the vulnerability of the banking systems from Greece and Italy, the countries which account for 12 out of the 24 banks failing the stress test. Greece and Italy show high weighted average stress sensitivities (91% and 40%) compared to other European countries. Results on country-level indicate that stress-sensitivity depends on a range of determinants including general macro-economic stability, structure of the banking system, and prior efforts to clean up the banks’ balance sheets.

Figure 3: Stress sensitivity per country in % Source: EBA/own calculations

The trouble ahead

Reconsidering the overall moderate results of the 2014 stress test, the effects of Basel III have not been mentioned so far. Given the upcoming stricter regulation of Basel III, we have estimated stressed CET1 ratio under the Basel III fully loaded regime by banking model and by country in figure 4 and 5:

Figure 4: Capital shortfall under Basel III by business model Source: EBA/own calculations
Figure 5: Capital shortfall under Basel III by country Source: EBA/own calculations

The results above indicate that capital ratios will stay under pressure and that capital management will remain on the top management’s agenda. Our analysis sheds light on where further trouble might arise going forward: Other things being equal, Southern European banks would need additional capital of more than EUR 20 billion if the stress test had been performed under the Basel III fully loaded regime (cf. figure 4 and 5). To cope with this challenge, capital managers have to orchestrate the whole range of capital management, ranging from disciplined risk taking to the issuance of innovative capital instruments.

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Jens Kuttig / author BankingHub

Jens Kuttig

Senior Partner Office Münster

Christoph Lindemann

Senior Manager zeb Hamburg

Julian Zikmund

Senior Manager zeb

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