The lender said its client businesses continued to grow revenues and that its second-quarter results were in line with its guidance for the year.

Deutsche Bank returned to a better-than-expected profit in the second quarter from a loss a year ago as trading earnings helped offset mixed results at its global investment banking division and a hit from the jump in the euro's value.

Deutsche Bank's net profit reached 1.485 billion euros ($1.748 billion) in the second quarter, compared with a 1.2 billion forecast from Reuters. The firm's core investment banking unit reported a 3% year-on-year hike in revenue to 2.