午后快速走弱！刚刚，A股发生了什么？

Market Overview - The A-share market experienced a significant decline in the afternoon, with the Shanghai Composite Index down by 0.44%, the Shenzhen Component down by 0.86%, and the ChiNext Index down by 1.17% [1] - Over 4,000 stocks in the market fell, with a total trading volume of 1.42 trillion yuan, an increase of 129 billion yuan compared to the previous trading day [1] Market Dynamics - A sudden wave of selling occurred between 13:10 and 13:30, leading to a nearly uniform sell-off across various sectors, causing major indices to drop by approximately 1% [2] - During this period of panic, the number of declining stocks approached 4,800 [4] Sector Performance - Despite the overall market decline, certain sectors such as port shipping, grain (including genetically modified crops, corn, and seed industry), and rare earths showed strong performance [4] - The market's reaction may be linked to the ongoing U.S.-China trade negotiations, with reports indicating that discussions were taking place in London [6][8] Investment Sentiment - The market's fluctuations suggest that some investors may be taking profits ahead of the negotiations, particularly from sectors that had seen significant gains recently [8] - The future market direction will largely depend on the progress of the U.S.-China negotiations, with a focus on official reports for accurate information [8] Analyst Insights - Recent reports from Zhongtai International Securities indicate that the U.S.-China talks may reduce uncertainty in the short term, but significant differences remain on issues such as tariffs and technology export controls [10] - The report also highlights that the Hong Kong market is experiencing a rotation of funds among focus sectors, with no significant new capital inflow [10] - Analysts suggest that low-valuation, high-growth potential sectors may perform well in the near term, while defensive dividend sectors still hold value [10] Stock Market Trends - The upcoming unlocking of shares for "new consumption" stocks in Hong Kong may lead to increased volatility in stock prices, suggesting that investors should consider taking profits [11] - This perspective may also be relevant for related sectors in the A-share market [11]