Knight Capital’s earnings soar

Knight Capital’s quarterly profit rose four-fold, it said yesterday, as the electronic trader earned more revenue from its market-making activities despite challenging market conditions. The firm’s shares jumped 10 per cent on the news that its fourth quarter earnings had soared to $40.2m, from $9.2m a year ago. Knight Capital, which is based in the US but has a London office, provides execution services to brokers and other retail clients.