Shares in humanoid robot firm Unitree surge 600% on Chinese stock market debut

Company's robots have gained global fame via videos of them performing martial arts and as dancers for pop stars

Unitree, the world's biggest humanoid robot maker, has made a spectacular entry on to China's stock market, with its shares surging by more than 600%.

The Chinese company's robots have gained global fame via viral videos of them performing martial arts, running at Olympic speeds and serving as backup dancers for pop stars.