A股收评：三大指数下跌，科创50逆市涨超2%，半导体走强，雅下水电回调！超2700股下跌，成交1.81万亿缩量584亿；机构解读

Market Overview - The stock market experienced a collective decline with the three major indices closing lower, while the Sci-Tech Innovation 50 index rose over 2% [2] - The overall market saw more than 2,700 stocks decline, with the Shanghai Composite Index closing at 3,593.66 points, down 0.33% [2] Key Sectors Semiconductor Equipment - The semiconductor equipment sector, particularly the photolithography machine segment, showed significant growth, with a projected global sales figure of $109 billion in 2024 [3] - Photolithography machines hold the largest market share at 24%, which is expected to increase with advancements in chip manufacturing processes [3] Sora Concept - The Sora concept stocks, including companies like Sai Group and Easy Point, saw notable increases due to the anticipation of OpenAI's new video generation AI model, Sora 2 [4][5] - The AIGC video generation field is still in its early commercialization stages, presenting potential investment opportunities [5] Healthcare Innovation - The National Healthcare Security Administration announced that over 100 drugs have been submitted for the new innovative drug directory, indicating a strong push for healthcare innovation [6] Real Estate Transactions - Vanke successfully sold the Shanghai Jinqiao Wanchuang Center project, with a reported transaction price of approximately 1.4 billion yuan, although the exact figure remains undisclosed [7] Artificial Intelligence Development - The World Internet Conference highlighted China's commitment to the development and governance of artificial intelligence, emphasizing a structured approach to safety and innovation [8] Trade Investigations - The European Commission has initiated a sunset review investigation into anti-dumping and countervailing measures on solar glass imported from China, which could impact the solar industry [9] Institutional Insights - Tianfeng Securities noted that sectors with wider earnings forecasts tend to perform better during the earnings season, indicating potential for investment in non-leading stocks within these industries [10] - Open Source Securities identified three key reasons for the ongoing "anti-involution" trend in the market, including high-level policy support and clean industry chips, which could drive A-shares upward [10]