Deutsche Bank bounced back to profit in the third quarter, as it reduced reserves set aside for investor lawsuits over its Postbank division while its global investment bank fired on all cylinders. A 15-quarter profit streak at Germany's largest lender was interrupted in the second quarter after it made a large provision for the lawsuits.

The partial release of 440 million euros of litigation provisions in the third quarter helped boost profit, Deutsche Bank said.

Germany's biggest lender Deutsche Bank on Wednesday reported a sharp jump in third-quarter profits, boosted by the settlement of investor lawsuits related to a troubled takeover.