港股，下跌

Market Overview - The Hang Seng Index fell by 2.48% to close at 25,427.10 points, while the Hang Seng Tech Index dropped by 4.05% on October 17 [2] - The total market turnover was HKD 314.6 billion, with net inflows from southbound funds amounting to HKD 6.303 billion [2] Stock Performance - Alibaba's stock decreased by 4.22%, closing at HKD 154.4 per share, with a trading volume of HKD 20.78 billion [10] - Xiaomi Group's stock fell by 3.65%, closing at HKD 45.96 per share, with a trading volume of HKD 12.297 billion [11] - Chow Tai Fook's stock rose by 5.02%, while other notable declines included BYD Electronics down 8.13% and China Life down 5.75% [2] Biotechnology Sector - The biotechnology sector showed resilience, with notable gains from companies such as: -药捷安康-B, which surged by 22.22% [3] -轩竹生物-B, which increased by 16.90% and has seen its stock price rise over 200% since its listing [14] -药捷安康-B's clinical trial for its drug TT-00420 has commenced, targeting advanced or metastatic cholangiocarcinoma and other solid tumors [5] Consumer Sector - Lao Pu Gold saw a price increase of 3.11% and is set to raise prices on October 26 [7] - The brand achieved record sales during the Tmall "Double 11" event, with over HKD 300 million in sales within the first 10 minutes, marking a year-on-year growth of over 848 times [7]