There is no doubt that the 2017 launch of investment fund Blue Whale Growth has proved an unequivocal success. In the past few days, the fund's share price has broken through the £2 mark – double its £1 launch price nearly four years ago. For billionaire Peter Hargreaves, co-founder of investment platform Hargreaves Lansdown, the fund has yet again demonstrated his shrewd business sense – and ability to build winning companies. Together with fund manager Stephen Yiu, Hargreaves set up investment business Blue Whale Capital in 2017. The global fund, Blue Whale Growth, followed shortly afterwards with Hargreaves investing £25million of his own money at launch.