Market Overview - On September 2, the Shanghai Composite Index opened higher while the Shenzhen and ChiNext indices opened lower, but all three indices experienced downward pressure throughout the day, with the ChiNext indices dropping over 2% [1] - The trading volume increased to 29.124 trillion yuan, approaching the 30 trillion yuan mark, indicating a significant market activity [3] Sector Performance - The optical module sector, particularly companies like NewEase and Zhongji Xuchuang, saw significant declines after reaching new highs, while the robotics and banking sectors provided some support to the indices [3] - A total of 4,600 stocks declined, while only 700 stocks advanced, highlighting a challenging market environment for investors [3] Stock Specifics - NewEase opened at 388 yuan, reached a high of 401.1 yuan, but closed at 358 yuan, down 7.8%, with a market capitalization of 355.95 billion yuan and a P/E ratio of 60.18 [4] - 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 [4] - Tianfu Communication opened at 218 yuan, reached a high of 224.1 yuan, but 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 managed to rise by 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, despite negative news regarding chip procurement [5] Investment Sentiment - The significant drop in stocks like NewEase and Zhongji Xuchuang serves as both a risk indicator and an opportunity for investors, suggesting that sharp fluctuations in a bull market can present buying or selling opportunities [5]

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