突然爆发！两大板块，涨停潮！

Market Overview - The A-share market experienced an overall decline on the morning of October 31, with major indices showing slight decreases. The Shanghai Composite Index fell by 0.63%, the Shenzhen Component Index decreased by 0.62%, and the ChiNext Index dropped by 1.49% [5][6]. Sector Performance - The media and biopharmaceutical sectors saw a counter-trend rise, with the media sector leading with a gain of over 3%. Notable stocks in this sector included Fushi Holdings and Rongxin Culture, both hitting the 20% limit up [2][6]. - The biopharmaceutical sector also performed well, with a nearly 2% increase, and several stocks, including Sanofi and Lianhuan Pharmaceutical, reaching their daily limit up [8]. Notable Stocks - In the media sector, key stocks included: - Fushi Holdings (code: 300071) at 5.08, up 20.09% - Rongxin Culture (code: 301231) at 39.60, up 20.00% - Visual China (code: 000681) at 22.17, up 10.02% [7]. - In the biopharmaceutical sector, significant stocks included: - Sanofi (code: 688336) at 72.96, up 20.00% - Caina Co. (code: 301122) at 29.69, up 17.26% - Daren Tang (code: 600329) at 46.39, up 10.01% [9]. Stock Adjustments - Several popular stocks, represented by "Yizhong Tian," experienced significant declines, including: - Xinyi Sheng down 6.44% - Zhongji Xuchuang down 6.94% - Tianfu Communication down 7.76%, following a previous drop of 11.56% [10][11]. - Other notable declines included: - Shenghong Technology down 9.32% - Industrial Fulian down 7.21% - Lanqilong down 10.09% [12]. Hong Kong Market - The Hong Kong market also saw a general decline, with the Hang Seng Index approaching the 26,000-point mark. Notable declines included stocks like SMIC and BYD [14][15]. - Fosen Pharmaceutical experienced significant volatility, with an intraday increase exceeding 80% following the approval of its drug for prostate cancer treatment [13][16].