(Bloomberg) -- The shares of DWS Group, the investment arm of Deutsche Bank AG, slumped the most in a week after its first-quarter pretax profit fell short of estimates even as inflows pushed assets under management to a record.Most Read from BloombergBiden’s Gains Against Trump Vanish on Deep Economic Pessimism, Poll ShowsMalaysia in Talks With Tycoons on Casino to Revive $100 Billion Forest CityZuckerberg Asks for Patience as Meta’s AI Push Spooks InvestorsMeta’s Miss Sparks Fears in Tech With