市场窄幅震荡，沪指半日微跌0.02%，传媒板块集体爆发

Market Overview - The market experienced a narrow fluctuation in the early session, with the three major indices slightly declining. The North Stock 50 index dropped over 1% during the session [1] - As of the midday close, the Shanghai Composite Index fell by 0.02%, the Shenzhen Component Index also decreased by 0.02%, and the ChiNext Index declined by 0.14% [1] - The total trading volume in the Shanghai and Shenzhen markets was 1.39 trillion yuan, a decrease of 97.3 billion yuan compared to the previous trading day [1][7] Index Performance - Shanghai Composite Index: 4122.34, down 0.02%, with 979 stocks rising and 1276 falling [2] - Shenzhen Component Index: 14206.26, down 0.02%, with 1421 stocks rising and 1377 falling [2] - North Stock 50 Index: 1530.42, down 0.72%, with 54 stocks rising and 231 falling [2] - ChiNext Index: 3328.02, down 0.14%, with 726 stocks rising and 621 falling [2] Sector Performance - The media sector continued to rise, with multiple stocks such as Reading Culture, Jiecheng Shares, and Shanghai Film reaching their daily limit [2] - The disperse dye concept showed repeated activity, with Haixiang Pharmaceutical achieving three consecutive limit-ups and Huatai reaching its daily limit [2] - The PCB concept experienced fluctuations, with Nanya New Materials and Honghe Technology both reaching historical highs [2] Market Sentiment - 74.58% of users are bullish on the market [4] - A total of 2433 stocks rose, while 2843 stocks fell, with 62 stocks hitting the daily limit and 5 stocks hitting the lower limit [5] Trading Metrics - The market heat index is at 40, indicating moderate activity [6] - The predicted trading volume for today is 2.14 trillion yuan, with an expected decrease of 106.6 billion yuan [7] - The limit-up performance rate is 85%, with a high opening rate of 77% and a profit rate of 67% [7]