Deutsche Bank AG, Germany's biggest bank, reported third-quarter results that beat estimates after the investment banking unit posted higher profits.

Deutsche Bank's earnings before tax at the corporate banking and securities unit rose 12% to 1.1 billion euros ($1.5 billion), beating analysts' estimates.

The Frankfurt-based company posted an overall loss for the quarter after writing down its stake in Deutsche Postbank AG.

At the investment bank, sales and trading revenue slipped 4%, compared with the average 26% decline at Goldman Sachs Group Inc., Citigroup Inc., JPMorgan Chase & Co., Morgan Stanley, Bank of America Corp., UBS AG and Credit Suisse Group AG.

The German company reported a net loss of 1.21 billion euros ($1.68 billion) for the quarter. Analysts on average had forecast a loss of 1.52 billion euros ($2.1 billion).

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