FRANKFURT (dpa-AFX) - A defeat of the Polish Commerzbank subsidiary mBank before the European Court of Justice put the shares of the parent company under considerable pressure on Thursday. They recently lost 4.1 percent to 11.01 euros, making them the weakest stock in the Dax. In addition, the shares slipped below the 21-day line, a technical chart indicator for the short-term trend.

Poland's banks suffered another defeat before the European Court of Justice in the dispute over abusive conditions for foreign currency loans. The shares of MBank, in which Commerzbank holds a majority stake, fell in Warsaw trading as a result. Coba has already had to absorb charges running into the millions for its Polish subsidiary./niw/jha/