收评：沪指窄幅震荡微跌 脑机接口、油气股逆势走强

Market Overview - The market experienced a narrow fluctuation with slight declines in the three major indices, with the Shanghai Composite Index down by 0.04%, the Shenzhen Component down by 0.12%, and the ChiNext Index down by 0.36% [1][2]. Trading Volume - The total trading volume for the Shanghai and Shenzhen markets was 1.21 trillion yuan, a decrease of 78.7 billion yuan compared to the previous trading day [1]. Sector Performance - The brain-computer interface sector saw a collective surge, with stocks like Aipeng Medical hitting the daily limit [1]. - Oil and gas stocks became active again, with Zhun Oil shares achieving three consecutive limit-ups [1]. - The nuclear pollution prevention sector also showed strength, with China Nuclear Technology hitting the daily limit [1]. - Conversely, the innovative drug sector experienced a pullback, with Kexing Pharmaceutical dropping over 10% [1]. Stock Movement - More than 2,900 stocks declined across the market, indicating a broader trend of falling stocks [1]. - The sectors with the highest gains included brain-computer interfaces, oil and gas, batteries, and nuclear pollution prevention, while gaming, innovative drugs, beauty care, and IP economy sectors faced the largest declines [1].