[Review: The Shanghai Stock Index rebounded from shock and closed in the red, and robot concept stocks collectively strengthened] On October 20, the market fluctuated and rose in late trading, the Shanghai Stock Index closed in the red, the GEM index narrowed its decline, and the Science and Technology Innovation 50 Index rose by 1%. The differentiation between the yellow and white lines is obvious, and the trend of small and medium-cap stocks is strong. Near the end of the trading session, some broad-based ETFs saw significant increases in volume, with the Shanghai Composite 50 ETF China (510050) trading exceeding 4 billion in 20 minutes. The turnover of Shanghai and Shenzhen stock markets was 1.46 trillion, which was 18.6 billion higher than the previous trading day. More than 3,700 stocks across the market rose. On the market, the concept of robots has been active again and again, with more than ten constituent stocks hitting the daily limit, Daye shares have three consecutive boards, Fulai New Materials, Ningbo Dongli, Zhejiang Rongtai two consecutive boards, Changling Hydraulics, and Huazhijie have hit the daily limit; terminal AI has risen rapidly, with Hengxuan Technology, Meige Intelligent, Quectel Communications, Sunsea Intelligence, Broadcom Integration, and Longqi Technology rising by the daily limit; the food and beverage sector has moved up during the day, Anji Food has risen by the daily limit, and Southern Dairy has risen by nearly 10%. On the downside, the coal sector fluctuated and adjusted, Dayou Energy and Shanxi Coal International fell; the concept of dyes weakened, Shanshui Technology hit the 20CM limit during the session, and Jinji shares fell by more than 13%. As of the close, the Shanghai Stock Exchange Index rose 0.12%, the Shenzhen Component Index fell 0.14%, and the ChiNext Index fell 0.26%.