IPOSelf-driving startup tied to top carmakers met with caution after raising $750m in IPOA Momenta robotaxi is displayed at the booth of the Chinese autonomous driving startup at the Auto Shanghai show in April 2025. © ReutersGLORIA LIJuly 8, 2026 10:48 JSTUpdated on July 8, 2026 18:15 JSTHONG KONG -- Shares of Chinese self-driving startup Momenta opened higher but ended flat in their Hong Kong debut on Wednesday, as investors weighed hopes that its technology will define the future of autonomous vehicles against worries about profitability.