突发！全线下跌

Market Overview - The A-share market experienced a significant decline, with the Shanghai Composite Index dropping over 1% and closing at 3573.21 points, while the Shenzhen Component Index fell 1.73% to 11009.77 points [1][2] - The total trading volume in the A-share market approached 2 trillion yuan, increasing by over 900 billion yuan compared to the previous day [1] Sector Performance - Resource sectors such as coal, steel, oil, and non-ferrous metals saw collective pullbacks, while brokerage, insurance, liquor, and banking sectors also declined [2] - Conversely, the information security sector surged, with stocks like Digital Certification and Nanxing Co. hitting the daily limit, and several others seeing significant gains [2][3] Information Security Sector - The information security concept saw strong performance, with *ST Guandao and Digital Certification both hitting the daily limit of 30% and 20% respectively, alongside notable gains from other companies in the sector [3][4] AI Industry - AI-related stocks were active, with companies like Fangsheng Co. and Dingtong Technology seeing substantial increases, reflecting a growing interest in AI applications [6][7] - The domestic AI industry is reportedly advancing, with local models achieving performance comparable to leading overseas models, and significant progress in AI chip development by companies like Huawei and Haiguang Information [8] Assisted Reproductive Technology - The assisted reproductive sector experienced a notable surge, with stocks like Anke Bio and Gongtong Pharmaceutical reaching daily limits of 20% [9][10] - The recent implementation of a childcare subsidy policy is expected to stimulate consumption in maternal and infant-related industries, including assisted reproduction and genetic testing [11][12]