机器人概念，全线走强

Market Overview - The Shanghai Composite Index opened lower but closed higher, marking a seven-day winning streak, while the Shenzhen Component and ChiNext indices rebounded after hitting lows [1] - The total trading volume in the Shanghai and Shenzhen markets reached 1.92 trillion yuan, an increase of 44.3 billion yuan compared to the previous trading day [1][6] Sector Performance - The commercial aerospace sector remained active, with over 20 stocks hitting the daily limit, including Shenjian Co., which achieved six consecutive limit-ups [1] - The robotics sector saw a rapid increase, with stocks like Shikang Co. and Xiangshan Co. also hitting the daily limit [1] - The chip industry chain showed strength, with Shenghui Integration achieving four consecutive limit-ups [1] - The paper industry experienced significant gains, with stocks such as Bohui Paper and Yibin Paper hitting the daily limit [1] Declining Sectors - The precious metals, Hainan, and energy metals sectors faced the largest declines, with the Hainan Free Trade concept collectively dropping, and Hainan Ruize falling nearly 7% [2]