Market Overview - The total trading volume of the Shanghai and Shenzhen stock markets exceeded 500 billion yuan, indicating strong market activity [1] - The A-share market opened slightly lower, with the Shanghai Composite Index down 0.07% and the Shenzhen Component Index up 0.03% [1] Sector Performance - The robotics sector showed significant strength, with related stocks experiencing sharp increases and some hitting the daily limit [6][12] - The chemical and chemical engineering sector also saw continuous gains, particularly in the PEEK materials segment, which performed strongly [14][15] - Electric power stocks faced a collective downturn, with several stocks hitting the daily limit down, including Shaoneng Co., Leshan Electric Power, and others [18] Notable Stocks - Stocks such as Aotuo Electronics, Yinbao Xingshan, and Tianqi Co. rapidly surged to their daily limit [12] - PEEK materials index rose by 8.73%, with a trading volume of 7.08 billion yuan, indicating strong investor interest [15] - Specific stocks like Fuheng New Materials and Jusa Long saw increases of over 20% [17] Investment Insights - According to Guojin Securities, the humanoid robot sector is entering a mass production phase, which is expected to benefit upstream core chemical new materials, including high-end engineering plastics like PEEK and others [17]