时隔十年，A股盘中突破4000点，3只新股暴涨，中一签最高赚3万

Core Points - The Shanghai Composite Index (SSE) has surpassed the 4000-point mark for the first time in nearly a decade, reaching a high of 4010.73 points on October 28, 2023, with the last occurrence being on August 18, 2015 [1][2] - The recent surge is attributed to a combination of policy support and increased market activity, with daily trading volumes exceeding 2 trillion yuan since mid-August [2][5] - The current market environment is characterized by a shift towards technology-driven growth, with sectors such as TMT (Technology, Media, and Telecommunications) leading the charge [5][6] Market Performance - On October 28, the SSE opened strong, briefly crossing 4000 points, but closed at 3988.22 points, down 0.22% for the day. The Shenzhen Component Index and the ChiNext Index also experienced slight declines [2] - The trading volume for the day reached 2.17 trillion yuan, with 2366 stocks rising [2] Historical Context - This marks the third time the SSE has crossed the 4000-point threshold, with previous instances occurring in May 2007 and April 2015. The current TTM (Trailing Twelve Months) P/E ratio remains above 20, similar to the 2015 level, but significantly lower than the 40+ ratio seen in 2007 [3][5] Sector Analysis - The current rally is driven by technology sectors, particularly semiconductors, AI, and renewable energy, contrasting with the previous reliance on financial and real estate sectors during past rallies [5][6] - Notable stock performances include N Yicai-U, N Heyuan-U, and N Bibet-U, which saw increases of 198.72%, 213.49%, and 74.41% respectively on their debut [9] Policy Developments - The China Securities Regulatory Commission (CSRC) announced reforms aimed at enhancing investor protection and promoting the growth of the capital market, including the launch of a new framework for the ChiNext board [7][8] - The CSRC's recent measures include 23 initiatives focused on protecting small and medium investors, indicating a commitment to improving market stability and investor confidence [8]