The merger was fully completed in 1922, resulting in one of the largest commercial banks in Germany. By 1931 Danatbank had become the second largest bank in Germany, when it suffered a run which started around 17 June due to rumours of the insolvency of the Norddeutsche Wollkämmerei & Kammgarnspinnerei (North German Wool and Worsted Yarn Spinning Works), finally going bankrupt on 13 July 1931. It was thus one of the most prominent victims of Deflation in Germany during the Great Depression.