BEIJING/SHANGHAI, Aug 10 (Reuters) - Chinese robot maker Unitree said on Monday its $900 million Shanghai initial public offering was more than 8,000 ‌times oversubscribed by retail investors, reflecting investor fever. "The relatively high IPO ‌valuation could draw market attention toward commercial value of the robotics industry," SWS Research said in a note. "The IPO is expensive, and the investment risk is already quite ‌high," said Wang Zhuo, partner of Shanghai ​Zhuozhu Investment Management. The IPO values ‌Unitree at 219 times 2025 earnings, ​and 36 times sales. ($1 = 6.7452 Chinese yuan renminbi)(Reporting by ​Ethan Wang and Ryan Woo in Beijing; additional reporting by Samuel ​Shen in ShanghaiEditing by Keith Weir)