Just one week after its blockbuster Shanghai's STAR Market debut, Chinese humanoid robotmaker Unitree Robotics has lost more than 200 billion yuan ($28 billion) in market value from its opening-day peak, in a rapid repricing that analysts said is bringing expectations back toward the company's current fundamentals and the commercial reality of humanoid robotics.

China’s robot boom hits a frenzy as Unitree’s IPO jumps to a $50 billion valuation, raising questions about revenue, risk and how fast the humanoid market can mature.

Shares of Unitree Robotics, known as “the first humanoid robot stock” in China, continued their decline on Monday. By the close of trading, the drop had narrowed to 10.31 percent,…