今天，A股最火的两个字！

Core Viewpoint - The article highlights the strong performance of the optical communication and commercial aerospace sectors in the market, with significant stock price increases and historical highs being reached by several leading companies in these industries [2]. Group 1: Optical Communication Sector - The optical communication sector has seen a resurgence, with leading stocks such as Zhongji Xuchuang, Tianfu Communication, Changguang Huaxin, and others reaching historical highs [2]. - Notable stock price increases include Tianfu Communication rising by 21.21% and Longguang Huaxin increasing by 10.47% [5]. Group 2: Commercial Aerospace Sector - The commercial aerospace sector is experiencing a surge, attributed to a combination of policy, performance, and technological advancements [2]. - Stocks with "Aerospace" in their names, such as Aerospace Power and Aerospace Engineering, saw significant gains, with some reaching their daily limit [4]. - Recent developments include the successful launch of the reusable Zhuque-3 rocket and advancements in key technologies for liquid oxygen-methane rockets, which are expected to enhance China's aerospace capabilities [6]. Group 3: Market Performance - As of the morning close, the Shanghai Composite Index rose by 0.62%, the Shenzhen Component Index increased by 1.55%, and the ChiNext Index surged by 3.02% [3]. - The commercial aerospace sector has been particularly active, with stocks like Yinbang Co. and Hongxiang Co. hitting their daily limit [4]. Group 4: Securities Sector - The securities sector also saw gains, with companies like Industrial Securities and Northeast Securities experiencing significant stock price increases [9]. - The China Securities Regulatory Commission's recent announcements regarding regulatory adjustments are expected to positively impact the securities industry, enhancing capital efficiency and growth potential [10][11].