Deutsche Bank is determined to remain among the top five investment banks in the world, its co-chief executives told shareholders on Thursday at a typically raucous annual meeting, even as other European lenders cut back their profitable but risky trading activities. [...] “There will be winners and losers in the banking world,” said Mr. Jain, a native of India who delivered a prepared text in competent German. “We want to position Deutsche Bank systematically as a winner.” [Dealbook]