Germany's Deutsche Bank AG and Commerzbank AG are facing potential relegation from certain stock indices due to the anticipated continued decline in their share prices, Bloomberg News reported.

Commerzbank is at risk of losing its membership at Germany's DAX Index to fast-rising payments provider Wirecard AG, whose €21 billion market valuation has exceeded those of Commerzbank and Deutsche Bank, according to the Aug. 14 report.

Commerzbank, which has a valuation of around €10.4 billion, is the lowest-ranking member of the DAX's 30 companies, while Wirecard could potentially enter the index in the quarterly rebalancing in September, the newswire noted.

Meanwhile, Deutsche Bank ranks 53rd on the most recent iteration of the Euro Stoxx 50 index, third lowest among existing members of the benchmark, Bloomberg said. Four non-member companies currently have valuations among the top 40, giving them automatic inclusion in the September review. Unless Deutsche Bank's shares recover to fifth-lowest or higher by the Aug. 31 cutoff date, it will fall out of the index, the newswire added.