🟢 Z.AI is trading 4.5% up

Z.AI is trading 4.5% up at HK$1069 after rising from the August 20 close of HK$1023.

• Searches found no reliable August 21 company-specific announcement directly explaining the gain.
• Recent coverage highlights the August 19 cornerstone lock-up expiry and previously announced GLM-5.3 developments, but neither is a confirmed catalyst for this session.