Turquoise, the share trading platform, aims to capture 5 to 10 per cent of panEuropean share trading by the end of this year as it seeks to offset a dramatic loss of business after the expiry of marketmaking commitments from founding shareholders.

The company is one of a handful of new platforms to have emerged in the wake of Mifid , the Brussels directive that broke the monopolies of the region's incumbent exchanges and allowed competition in share trading.