Shares of Unitree Robotics surged 629 per cent above their initial public offering price to open at 1,100 yuan in their Shanghai trading debut on Wednesday, giving China’s best-known humanoid robot maker a market capitalisation of about 445 billion yuan (US$66 billion). The opening pop from its IPO price of 150.80 yuan was followed by a pullback, with the stock dropping below 900 yuan per share in early morning trading. Unitree’s debut coincides with the opening of the World Robot Conference in...