The former head of the London Stock Exchange signalled media "cynics" are to blame for Deliveroo's disappointing share debut and compared the company's flop to Ocado's stumbles when it listed about a decade ago.

The highly-anticipated Deliveroo IPO, one of the largest in the UK for over a decade, was overshadowed by large institutional investors shying away from the food delivery firm, citing concerns over workers' rights. The shares slumped more than 30% in early hours of London trading.