UBS pins hopes on rebuilding investment banking unit

• Swiss bank lost more than any other during the credit crunch • UBS looking to catch up with rivals, such as Goldman Sachs UBS, which lost more money than any other bank during the credit crunch, is rebuilding its investment banking unit to catch up with rivals, such as Goldman Sachs and Credit Suisse, which are posting rising profits. The Swiss bank is rehiring some of the traders that it fired...