(Bloomberg) Robinhood Markets Inc. has appointed a new chief executive to run its UK entity, as the US stock-trading app pushes ahead with the latest attempt to launch its services overseas.Most Read from BloombergThe Bear Market Has Nearly Been Erased, Fewer Than 20 Months After It BeganPutin Warns Poland Over ‘Aggression’ Against Ally BelarusUS Recession Becomes Closer Call as Economists Rethink ForecastsWhy South Africa Is on the Brink of ChaosOil Trader Vitol Doubled Average Pay on Record