Xuan Zhu Bio-B (02575) rose nearly 20% to as high as HK$11.28, moving above its 10-day average, according to ETNet.
The stock closed at HK$11.28, up 19.94%, after trading 553,000 shares worth HK$5.6676 million. The active buy-sell ratio was 69:31, with net active buying of HK$2.0919 million. The largest net passive buyer was BofA Securities, while China Create Capital Market Services was the largest net passive seller.
Among related biotech names, WuXi AppTec (02269) gained 2.05%, Akeso (09926) rose 2.22%, and WuXi Biologics (02269) advanced 2.05%.