“易中天”新高后大跌，投资者如何办

Market Overview - On September 2, the Shanghai Composite Index opened higher while the Shenzhen and ChiNext indices opened lower, followed by a downward trend throughout the day, with the ChiNext and Shenzhen indices dropping over 2% [1] - The trading volume reached 29.124 trillion yuan, with an increase of 1.348 trillion yuan, approaching the 30 trillion yuan mark [2] - The number of declining stocks exceeded 4,600, while only about 700 stocks rose, indicating a significant sell-off in the market [2] Sector Performance - The optical module sector, particularly stocks like New Yisheng, Zhongji Xuchuang, and Tianfu Communication, experienced significant declines after reaching new highs [2][5] - The robotics sector showed resilience, helping to mitigate the overall market decline, while the banking sector provided support [2] Stock Analysis - New Yisheng opened at 388 yuan, reached a high of 401.1 yuan, and closed at 358 yuan, down 7.8%, with a market capitalization of 355.95 billion yuan and a P/E ratio of 60.18 [3][5] - Zhongji Xuchuang opened at 402.02 yuan, peaked at 419.6 yuan, and closed at 384 yuan, down 5.44%, with a market capitalization of 426.67 billion yuan and a P/E ratio of 62.67 [5] - Tianfu Communication opened at 218 yuan, reached a high of 224.1 yuan, and closed at 199.18 yuan, down 10.34%, with a market capitalization of 154.85 billion yuan and a P/E ratio of 97.47 [5] - Cambrian Technology rose 2.18% to close at 1,480 yuan, with a market capitalization of 619.16 billion yuan and a P/E ratio of 554.7, showing resilience against negative news [5] Investment Sentiment - The significant sell-off in "Yizhongtian" stocks is seen as both a risk revelation and an opportunity, suggesting that investors can consider buying during dips and selling during spikes [6] - The current market conditions indicate a cautious optimism, with liquidity remaining strong despite recent volatility [2][3]