German mutual fund DZ BANK and WGZ-BANK have announced the merger of their back-office activities (administrative management of shares on the stock exchange) together with WLSGV and RSGV, those of the two public savings banks organisations (Sparkassen) in Rhineland North Westphalia. These four undertakings will thus create DEUTSCHE WERTPAPIER SERVICE BANK which will managed 5 millions deposits and control more than 25% of the German market.