港股午评：恒指跌0.66%险守25000点，科技股弱势，创新药股走低，半导体股大涨

Market Overview - The Hong Kong stock market experienced a collective decline in the morning session, with the Hang Seng Index falling by 0.66% and struggling to maintain the 25,000-point level [1] - The Hang Seng China Enterprises Index dropped by 0.86%, while the Hang Seng Tech Index decreased by 1.04%, marking a three-day losing streak for all three indices [1] - Net selling from southbound funds exceeded 10 billion HKD [1] Sector Performance - Major technology stocks, which serve as market indicators, showed collective weakness, with Meituan experiencing a significant drop of over 10% post-earnings [1] - Alibaba and JD.com fell nearly 4%, while Baidu declined by over 1%, and Xiaomi and Tencent also saw losses [1] - The biopharmaceutical sector continued to decline due to impending drug tariffs, with notable drops in innovative drug companies such as BGI Genomics, which fell over 12% [1] - Other sectors, including new energy vehicles, consumer goods, steel, construction materials, beer, heavy machinery, dining, and gambling, also faced declines [1] Positive Trends - Institutional investors are optimistic about the accelerated replacement of domestic chips, leading to a significant rise in semiconductor stocks [1] - Semiconductor company SMIC surged by over 8%, approaching historical highs [1] - Financial stocks, including domestic banks, securities firms, and insurance companies, showed active performance [1] - Oil and rare earth concept stocks generally experienced increases [1]