The Dax fell by 0.22 percent to 13,166.34 points at the start, after having reached its highest level since mid-September in the middle of the week. The MDax for medium-sized stocks fell by 0.51 percent to 24,087.42 points. The EuroStoxx 50, the stock market barometer for the euro zone, fell by 0.39 percent.
Stock exchange in Frankfurt: Dax starts with minus
Before the interest rate decision by the European Central Bank (ECB), the German stock market fell slightly on Thursday.