Last year is one that most people would rather forget. But for Stephen Yiu, who set up asset manager Blue Whale Capital in 2016 with £25m of backing from billionaire Peter Hargreaves, the past 12 months have been memorable for all the right reasons.

Yiu’s Blue Whale Growth fund, which started last year with £200m in assets, more than trebled in size during 2020 to reach £670m by the end of December.