冲高回落，医药股集体调整，化学制药、噪声防治等紧随其后

Market Performance - The three major indices returned to the mid-axis after a rise and fall, with the Shanghai Composite Index up 0.07%, the Shenzhen Component Index up 0.56%, and the ChiNext Index up 1.26% at noon [1] - A total of over 4,100 stocks declined across the two markets, with a combined trading volume of 1.79 trillion yuan [1] Sector Performance - Pharmaceutical stocks collectively adjusted, with significant declines in Alzheimer's, smallpox virus prevention, and recombinant protein sectors, including a drop of over 10% for Nanjing New Pharmaceutical [3] - Other sectors with notable declines included chemical pharmaceuticals, AI, noise prevention, Pinduoduo concept, education, agriculture, and rail transit equipment [3] - Conversely, computing hardware stocks like Tianfu Communication, Guangku Technology, and Dekeli surged, with several stocks reaching historical highs [3] - Semiconductor stocks collectively strengthened, with SMIC rising over 10% to reach a historical high, and sectors such as semiconductors, copper foil, and banking showing significant gains [3] News Impact - NVIDIA reported a revenue of $46.74 billion for Q2 of fiscal year 2026, marking a year-on-year increase of 56% [3] - The Ministry of Industry and Information Technology issued guidelines to optimize business access and promote the development of the satellite communication industry, supporting telecom operators in collaboration with satellite companies [3]