3191.HK is trading at HK$65.50, down 3.36%, as concerns over returns on heavy AI investment and elevated financing costs weighed on technology shares.
- On October 21, SMIC fell 2.3% in Hong Kong. NAURA and Cambricon also declined, while some major mainland holdings rose.
- The uneven performance points to chip-sector valuation and sentiment pressure, not a single company-specific catalyst; a broader U.S. chip-sector rally offered little offset to China-focused names.