Investment banking helped drive revenue gains at Deutsche Bank in the third quarter, with growth in fixed income and currencies (FIC) and origination and advisory (O&A) leading the way.The bank’s Investment Bank business saw 11% year-over-year growth in net revenues during the quarter, while Deutsche Bank’s overall net revenues were up 5%, according to a Wednesday (Oct. 23) earnings release.In prepared remarks for the company’s Wednesday earnings call, Deutsche Bank CEO Christian Sewing attributed the Inves ...