Deutsche Boerse said late Wednesday that a new rule requiring insolvent companies to leave its DAX index on short notice will affect Wirecard AG, the German fintech company that collapsed amid an accounting scandal in June.

Deutsche Boerse said insolvent companies would be removed from the DAX index of German blue chips with two trading days' notice, effective 19 August. The new composition of the index will be announced on 19 August and implemented on 21 August after the market closes, the German stock-market operator said.