午后，A股突变！发生了什么？

Market Overview - A-shares experienced significant volatility on October 30, with major indices declining: Shanghai Composite down 0.73%, Shenzhen Component down 1.16%, and ChiNext down 1.84% [2] - The decline was led by previously strong sectors such as CPO, PCB, and controllable nuclear fusion, while rare earths and cultivated diamonds saw temporary gains before closing with reduced increases [2][4] Sector Performance - The steel sector maintained strength, with an overall increase of over 1%. Key stocks like Anyang Iron & Steel and Ordos hit the daily limit, while Fangda Special Steel rose by 6.5% [5] - Analysts suggest that the steel industry's supply-side reduction trend may lead to a balanced supply-demand situation, stabilizing steel prices and enhancing corporate profitability [5] Future Market Outlook - Most brokerages remain optimistic about the market's future, expecting a continued upward trend. The emphasis on high-quality development and technological self-reliance in the "14th Five-Year Plan" is expected to create a favorable policy environment for A-shares [7][8] - Key investment themes include technology-driven growth, advanced manufacturing, consumer assets supported by policy, and resource sectors benefiting from national energy security [8][9] Investment Opportunities - Focus areas for investment include: 1. Technology sectors represented by AI and TMT, with potential in quantum technology and 6G [8] 2. Advanced manufacturing sectors such as defense, machinery, and new energy vehicles [8] 3. Quality consumer assets driven by domestic demand [8] 4. Resource sectors benefiting from energy security and cyclical recovery [9]