Market Overview - During the week from July 14 to July 18, the A-share market saw all three major indices rise collectively, with the Shanghai Composite Index closing at 3534.48 points, up 0.69% for the week; the Shenzhen Component Index at 10913.84 points, up 2.04%; and the ChiNext Index at 2277.15 points, up 3.17% [2] - Approximately 57% of stocks experienced gains during the week, with 149 stocks rising over 15% and 20 stocks declining over 15% [2] - The telecommunications, pharmaceutical, automotive, and machinery sectors led the gains, while real estate, media, public utilities, and non-bank financial sectors saw the largest declines [2] Top Performing Stocks - A stock named Aowei New Materials (688585.SH) achieved a remarkable weekly increase of 148.85%, leading the bull stock list, followed by Lansheng Co. (600826.SH) and *ST Guangdao (839680.BJ), both with over 60% weekly gains [3] - Aowei New Materials has been categorized under the humanoid robot concept due to a proposed acquisition by Zhiyuan Robotics, which has contributed to its stock price surge [3][4] - The stock has seen a total increase of over 330% over eight consecutive trading days, reaching a price of 33.47 yuan per share and a market capitalization of 13.5 billion yuan [4] Underperforming Stocks - *ST Zitian (300280.SZ) was the worst-performing stock of the week, with a decline of nearly 36% [9] - The stock faced multiple risks of delisting due to failure to disclose its annual report within the legal timeframe and potential major violations [10] - Following its resumption of trading, *ST Zitian experienced consecutive trading halts, with significant price drops [11] Regulatory Actions - Yuan Dao Communication (301139.SZ) is under investigation by the China Securities Regulatory Commission (CSRC) for alleged financial fraud, which has led to a significant drop in its stock price [13] - The company reported a decline in revenue from 2.111 billion yuan in 2022 to 1.282 billion yuan in 2024, alongside a drop in net profit from 125 million yuan to 42 million yuan during the same period [14]