REUTERS/Luke MacGregor Deutsche Bank beat expectations with its third-quarter earnings with a surprise return to profit, and posted a 47% jump in trading fixed-income securities and currencies.The bank set aside 273 million euros as provisions for bad loans, lower than the 371 million euros analysts polled by Bloomberg estimated. This was Deutsche Bank's strongest quarter in a year hammered by the coronavirus, as a market rally that started in 2019 provided an unexpected boost to its trading unit.Visit Business Insider's homepage for more stories.Deutsche Bank swung to profit in the third-quarter helped by a 47% jump in trading debt securities.