[A-share Midday Review: Shanghai Composite Index down 0.07%, Robot Concept Continues to be Active] Jin Ten Data December 4: The three major A-share indices experienced fluctuations and adjustments in the morning session. By the close of the midday session, the Shanghai Composite Index was down 0.07%, the Shenzhen Component Index was down 0.42%, and the ChiNext Index was down 0.71%. On the market, the robot concept continues to be active, with over 20 stocks including Shandong Mining Machinery and Tianqiao Hoisting hitting the daily limit; retail stocks strengthened, with multiple stocks including Yonghui Supermarket, Yike Foods, and Zhongbai Group also hitting the daily limit; the semiconductor and non-ferrous metals sectors saw a pullback after earlier gains. The coal, oil, industrial mother machines, and PEEK materials sectors also saw significant increases, while the IP economy, Hainan sector, and photovoltaic sectors declined. (Source: Jin Ten Data)