[Afternoon Commentary: The Science and Technology Innovation 50 Index rose 0.79% in half a day, and the concepts of humanoid robots and terminal-side AI collectively exploded] On October 20, the three major indexes rose or fell mixedly, and the ChiNext Index opened lower and then fell back. The differentiation between the yellow and white lines is obvious, and the trend of small and medium-cap stocks is strong. The half-day turnover of the Shanghai and Shenzhen stock markets was 933.5 billion, a decrease of 37.2 billion from the previous trading day. More than 3,900 stocks across the market rose. On the market, hot spots are rotating rapidly, and the concept of robots is active again and again. More than ten constituent stocks have hit their daily limit, Daye shares have three consecutive boards, Fuli New Materials, Ningbo Dongli, and Zhejiang Rongtai have two consecutive boards; on-device AI has risen rapidly, with Hengxuan Technology, Meige Intelligent, Quectel Communications, Sunsea Intelligence, Broadcom Integration, and Longqi Technology hitting their daily limit; PCB Junya Technology, Concord Electronics, and Bomin Electronics have hit their daily limit; and AI comics Guangdong Media and City Media have both hit their daily limit. On the downside, the coal sector fluctuated and adjusted, with Antai Group, Dayou Energy, and Zhengzhou Coal and Electricity falling. As of the close, the Shanghai Stock Exchange Index fell 0.08%, the Shenzhen Component Index rose 0.18%, and the ChiNext Index rose 0.27%.