午评：港股恒指跌1.22% 科指跌跌1.13% 科网股普跌 半导体板块强势 精锋医疗-B涨超29%

Market Overview - The Hong Kong stock market indices collectively declined, with the Hang Seng Index falling by 1.22% to 26,136.49 points, the Hang Seng Tech Index down by 1.13%, and the National Enterprises Index decreasing by 1.14% [1][6]. Sector Performance - Technology stocks experienced a broad decline, with Lenovo Group dropping over 5%, Baidu Group down more than 3%, and Kuaishou falling over 2% [1][6]. - Conversely, defense stocks rose, with Aerospace Holdings increasing by over 5% [1][6]. - The semiconductor sector showed strength, with Meijiayin Holdings surging by over 8% [1][6]. New Listings - Three new stocks were listed today, with Jingfeng Medical-B rising over 29%, Tianshu Zhixin increasing by over 11%, and Zhipu gaining over 11% [3][7]. Industry Insights - Dongwu Securities released a report forecasting that the commercial aerospace industry will see multiple catalysts by 2026, particularly with the launch of several reusable and high-capacity commercial rockets, which are expected to significantly enhance rocket capacity and resolve previous bottlenecks in satellite communication development [1][6]. - China's low Earth orbit satellite internet is anticipated to enter mass launch construction in the second half of 2025, with a larger batch of launches expected in 2026, further accelerating industry development [1][6]. Semiconductor Industry Update - NVIDIA's CEO Jensen Huang announced at CES that the company is finalizing details with the U.S. government regarding the export of H200 chips to China, with expectations to deliver soon [2][7]. - The U.S. government had previously allowed NVIDIA to export H200 chips to "approved customers" in China under "national security conditions" [2][7]. - Wei Shaojun, Vice Chairman of the China Semiconductor Industry Association, expressed concerns about the unpredictable U.S. stance on high-end chips, urging the Chinese semiconductor industry to remain vigilant and committed to domestic production in advanced processes [2][7].