2018, that is about 291 percent of GDP. European banks are in trouble for several reasons.
First, banking regulation has become tighter after the financial crisis. As a consequence regulatory and compliance costs have rise substantially. Today banks have to fulfill demands by national authorities, the European Banking Authority, the Single Supervisory Mechanism, the European Securities and Markets Authority and the national central banks. Being at a staggering 4% of total revenue currently, compliance costs are expected to rise to 10% of total revenue until 2022.
Second, there are risks hidden in banks´ balance sheets. That there is something fishy in European banks´assets can quickly be detected when comparing banks market capitalization with their book value. Most European banks have price-to-book ratios below 1. German Commerzbank´s price-to-book ratio stands at 0.49, Deutsche Bank´s is at 0.36, Italian UniCredit´s at 0.23, Greek Piraeus Bank at 0.14, and Greek Alpha Bank at 0.34...
Source:mises.com