A-share Midday Review | ChiNext Index rises 3%, humanoid Siasun Robot&Automation concept surges, baijiu leads declines

On October 28, the three major A-share indices opened higher collectively, surged in the early session before pulling back at one point, then strengthened again in choppy trading, with the market showing a pattern of "broad index gains, growth stocks leading, and divergence among heavyweight stocks." As of the midday close, the Shanghai Composite Index rose 0.72% to 3,674.44 points, the Shenzhen Component Index rose 1.99% to 11,470.03 points, the ChiNext Index rose 3.00% to 2,624.64 points, and the STAR 50 rose 2.51%. Nearly 4,500 stocks in the Shanghai and Shenzhen markets advanced. Half-day turnover in the two markets totaled RMB1.0136 trillion, an increase of RMB143.7 billion from the previous trading day. On the capital flow front, according to market fund monitoring, the chip concept saw a net inflow of RMB14.896 billion in main funds, and the Siasun Robot&Automation concept saw a net inflow of RMB13.396 billion. Market Overview On the board, on the upside, reducer, machine tool, magnetic materials, humanoid Siasun Robot&Automation and other sectors led gains, while semiconductors and automation equipment sectors strengthened in tandem; on the downside, baijiu and banking sectors led declines, while insurance and shipping port sectors pulled back slightly. Overall, half-day turnover in the two markets increased significantly from the previous trading day, with capital concentrated flowing into the Siasun Robot&Automation industry chain and semiconductor and other technology growth sectors, while consumer heavyweights such as baijiu saw capital outflows; more stocks rose than fell. Hot Sectors 1. Humanoid Siasun Robot&Automation concept strengthened across the board The humanoid Siasun Robot&Automation concept rallied during the session, with Xiangyang Automobile Bearing notching a fifth consecutive limit-up, Changzhou Nrb Corporation a third consecutive limit-up, and Wanxiang Qianchao three limit-ups in four days; Zhejiang Shuanghuan Driveline, Shenzhen Zhaowei Machinery & Electronics, Zhejiang XCC Group, Zhejiang Rongtai Electric Material, and Ningbo Donly hit the limit-up; Hengong Precision Equipment, Est Tools Co., Ltd., Shenzhen Ampron Technology, and Sichuan Dawn Precision Technology rose 20% to the limit-up; Zhejiang Fulai New Material hit the limit-up, recording five limit-ups in eight days; Unitree Technology rose more than 12%. The concept index rose 5.11% in the half-day session. Comment: On the news front, the Shanghai Municipal Commission of Economy and Informatization on October 27 issued the "Shanghai Action Plan for Accelerating the Development of a New Generation of Intelligent Manufacturing" (Hu Jing Xin Zhi [2026] No. 662, dated October 22), proposing to push 8,000 humanoid Siasun Robot&Automation units into factories by 2028, achieve an industrial Siasun Robot&Automation density of 600 units per 10,000 people, support innovative breakthroughs in humanoid Siasun Robot&Automation, collaborative Siasun Robot&Automation, and high-precision heavy-duty Siasun Robot&Automation, and develop and promote physical AI equipment with autonomous perception and decision-making capabilities. 2. Industrial mother machine sector moved sharply higher The industrial mother machine concept rose 4.83% in the half-day session, with Shenyang Machine Tool and Jianshe Industry Group hitting the limit-up, Jirfine Intelligent Equipment up more than 15%, and Shenzhen Everwin Precision Technology, Shanghai Weihong Electronic Technology, Hiecise Precision Equipment Co.,Ltd., and Nantong Guosheng Intelligence Technology Group Co., Ltd. following suit. Comment: On the news front, the aforementioned Action Plan also proposed accelerating the iterative upgrading of AI-empowered industrial mother machines such as ultra-precision grinders, large five-axis machine tools, and high-speed dual five-axis mirror milling machines; separately, according to Sina Finance, the desktop five-axis CNC machine tool WM-100 developed by a Chinese team raised over US$1 million within 40 minutes of launching on an overseas crowdfunding platform, reaching US$2.2 million in 12 hours. 3. Semiconductor and memory chip sectors rebounded sharply The semiconductor sector rose 3.67% in the half-day session, up as much as 4.27% intraday, with Shanghai Fullhan Microelectronics up 20% to the limit-up, Shenzhen Kiwi Instruments up 20% to the limit-up, Ingenic Semiconductor up more than 15%, and Montage Technology up more than 6%. Comment: On the news front, Shanghai Fullhan Microelectronics disclosed its third-quarter report on the evening of October 27, reporting revenue of RMB2.554 billion for the first three quarters, up 123.94% year on year, and net profit attributable to shareholders of RMB775 million, up 845.02% year on year; Ingenic Semiconductor reported revenue of RMB7.102 billion for the first three quarters, up 106.66% year on year, and net profit attributable to shareholders of RMB2.616 billion, up 922.95% year on year. SK Hynix CEO Kwak Noh-jung said at the earnings call that its DRAM and HBM capacity is in effect nearly sold out for the next three years through 2029. 4. Short drama concept performed actively The film and cinema sector rose 2.45% in the half-day session and culture and media rose 2.31%, with Guomai Culture & Media up 20% to the limit-up, IReader Technology at the limit-up, Cultural Investment Holdings notching a second consecutive limit-up, COL Global Co., Ltd. up more than 7%, and Mango Excellent Media up more than 6%. Comment: On the news front, according to Cailian Press, QuestMobile data shows that as of August 2026, the monthly active users of Tencent's WeChat short drama mini-program reached 143 million, with weekly active users reaching 89.68 million in the first week of October, up 44.1% from the first week of September.