A-share Market Close Review | Shanghai Composite Index Rises 0.12%, BSE 50 Up 3.88%, Humanoid Siasun Robot&Automation Triggers Wave of Limit-Up

On October 20, the three major A-share indices collectively opened lower and then fluctuated upward, with divergent trends in the afternoon. The ChiNext Index surged and then pulled back, while the Shanghai Composite Index rallied in late trading to close in the green. As of the close, the Shanghai Composite Index rose 0.12% to 3,735.37 points, the Shenzhen Component Index fell 0.14% to 11,801.29 points, the ChiNext Index fell 0.26% to 2,739.20 points, the STAR 50 Index rose 1.00% to 1,342.42 points, and the BSE 50 Index rose 3.88% to 982.87 points. Combined turnover of the Shanghai and Shenzhen markets was 1,456.112 billion yuan, an increase of 18.595 billion yuan from the previous trading day. Across the market, 3,777 stocks rose, 1,668 fell, and 129 were flat; 56 stocks hit the daily limit-up, 7 hit the daily limit-down, and rising stocks accounted for about 67%. In terms of sectors, consumer electronics, lighting equipment, automation equipment, non-metallic materials, digital media, and IT services led the gains; marine equipment, ground armaments, commercial vehicles, insurance, coal mining, and passenger vehicles led the declines. Driving factors From October 20 to 22 local time, NVIDIA's GTC conference is being held in Berlin, Germany. Jensen Huang will deliver a keynote speech on the 21st. Physical AI, Siasun Robot&Automation, and agentic AI are listed as core topics. The physical AI concept led the concept sectors on the day, ranking first among concept sectors. On the afternoon of October 19, Wu Qing, Chairman of the China Securities Regulatory Commission, said at the opening ceremony of the 2026 Financial Street Holdings annual forum that the CSRC will anchor its efforts to build a main front for serving innovative small and medium-sized enterprises and steadily roll out a series of measures including BSE 50 ETFs, market value-based allotment for Beijing Stock Exchange IPOs, innovative evaluation standards, and optimization of the tiered management of the National Equities Exchange and Quotations. The BSE 50 Index rose 3.88% on the day. At a press conference held by the State Council Information Office on October 19, Wei Wei, Director of the Department of Science and Technology of the Ministry of Industry and Information Technology, said that in the first half of this year, China's humanoid Siasun Robot&Automation complete-machine products exceeded 400 models, with output exceeding 40,000 units, and full-year output is expected to exceed 100,000 units. Data from the General Administration of Customs showed that in September, China's integrated circuit exports totaled US$44.95 billion, up 136.0% year on year, higher than the cumulative growth rate of 99.1% in the first three quarters; overnight, the Philadelphia Semiconductor Index closed up 1.61%, ending an eight-day losing streak. Data from the Ministry of Commerce showed that from January to September this year, sales of smart glasses on key platforms increased 1.1 times year on year. Hot sectors 1. Humanoid Siasun Robot&Automation and physical AI: The physical AI concept led concept sectors, automation equipment rose 2.45%, and the Siasun Robot&Automation concept remained active repeatedly, with multiple constituent stocks hitting the daily limit-up. Shenzhen Everwin Precision Technology rose 20% to the daily limit-up, Shandong Daye hit the daily limit-up at the open and extended its winning streak to three boards, Zhejiang Fulai New Material, Ningbo Donly, and Zhejiang Rongtai Electric Material recorded two consecutive limit-up boards; Guangzhou Frontop Digital Creative Technology rose 20% for a second consecutive limit-up board, Shanghai Suochen Information Technology rose 13.10%, Orbbec rose 15.86%, and Unitree Robotics rose 6.07%. In terms of catalysts, NVIDIA's GTC Berlin conference lists physical AI and Siasun Robot&Automation as core topics, and the market is watching progress on Tesla's Optimus and the company's third-quarter earnings release on October 21 (US Eastern Time). 2. AI glasses and on-device AI: Consumer electronics rose 3.07% and IT services rose 2.34%, with multiple AI glasses-related stocks hitting the daily limit-up. Bestechnic (Shanghai) Co., Ltd. rose 20% to the daily limit-up at 106.32 yuan, while LONGCHEER, Beken Corporation, Quectel Wireless Solutions, and MeiG Smart Technology all rose 10% to the daily limit-up. In terms of catalysts, the theme of NVIDIA's GTC conference shifted from "selling GPUs" to "AI factories," raising expectations that AI will extend from the cloud to the device side; Ministry of Commerce data showed that from January to September this year, sales of smart glasses on key platforms increased 1.1 times year on year. 3. Beijing Stock Exchange: The BSE 50 Index rose 3.88% and at one point rose more than 5% during the session, with Beijing Stock Exchange stocks strengthening across the board. JIACHEN and GLORIA both rose 30% to the daily limit-up, HUAMI NEW MATERIAL rose 16.91%, Nanfang Dairy rose 9.86%, and ZECHENG ELECTRONICS rose 8.76%. In terms of catalysts, CSRC Chairman Wu Qing said on October 19 that a series of measures would be steadily rolled out, including BSE 50 ETFs, market value-based allotment for Beijing Stock Exchange IPOs, innovative evaluation standards, and optimization of the tiered management of the National Equities Exchange and Quotations. Declining sectors Marine equipment fell 2.67%, ground armaments fell 2.63%, commercial vehicles fell 1.84%, insurance fell 1.37%, and coal mining fell 1.33%. China CSSC fell 2.33%, Anhui Greatwall Military Industry fell 4.63%, and in the coal sector Henan Dayou Energy fell 9.20% and Shanxi Coal International Energy Group fell 4.89%; the dye sector posted among the largest declines, with Jiujiang Shanshui Technology down 18.94% and JiangSu Jinji Industrial down 14.13%. Looking at interval data, ground armaments rose a cumulative 11.49% over the previous two trading days, and Jiujiang Shanshui Technology rose a cumulative 49.74% from September 30 to October 19; both posted among the largest declines on the day.