The three key A-share indices concluded the trading session with a collective downturn. The Shanghai Composite Index retreated by 1.7%, dropping beneath the pivotal 4,000-point threshold. Meanwhile, the Shenzhen Component Index tumbled 3.22%, and the ChiNext Index plummeted 3.69%. Leading the market's downturn were semiconductor and computing power-related stocks, with Orientai Semi and MacroMicro Tech experiencing declines exceeding 10%. Shenghong Technology fell over 7%, while TFC Communication witnessed a drop of more than 6%.

In contrast, banking and oil and gas sectors exhibited resilience, bucking the overall market trend. CITIC Bank surged over 4%, whereas CNOOC and PetroChina both climbed more than 3%. The robotics sector also demonstrated notable activity, with Orbbec surging over 14% and Leader Harmonic Drive advancing nearly 9%. Across the Shanghai, Shenzhen, and Beijing markets, approximately 4,600 stocks registered declines, indicating a widespread downturn in individual stock performance.