But while the business has been around for a while, its stock has recently shifted gear. IG shares are up almost 90 per cent since the arrival of Breon Corcoran as chief executive in early 2024. In a previous life, Corcoran oversaw the merger between bookmakers Paddy Power and Betfair, creating what’s now Flutter. Before the merger, he grew Betfair with a campaign of cutting waste and developing new products; IG is following a similar playbook.