When it comes to trading in agency MBS, Deutsche Bank is heading for the exits as a lack of volume in a once-thriving profit center continues to head south. Granted, Deutsche’s departure from the space is part of a huge worldwide restructuring at the German-based bank, but with MBS trading volume falling to a 13-year low last year – and not looking much better this year – the decision was likely an easy one. Chris Whalen, senior managing director at Kroll Bond Rating Agency, said...