Sun Trading, a Chicago-based high-frequency trading firm, has hired a new head of trading in London, backing the UK in the wake of Brexit and eyeing growth in Europe.

The firm has appointed Jamal Tarazi, who was European head of New York-based high-speed trading firm Global Trading Systems before leaving earlier this year, as head of trading in London to grow revenue in Europe and "maximise" trading opportunities around the world, according to chief executive Kevin Cuttica.