On February 26, 2026, the three major A-share indices closed with a mixed performance. The Shanghai Composite Index saw a marginal decline of 0.01%, while the Shenzhen Component Index edged up by 0.19%. In contrast, the ChiNext Index finished slightly lower, down by 0.29%.

Notably, computing power stocks surged collectively, with the CPO (Co-Packaged Optics) and PCB (Printed Circuit Board) sectors leading the charge. Shanghai Electric Power and Shennan Circuits both reached their daily upward price limits, demonstrating robust market enthusiasm. Meanwhile, Victory Giant Technology soared by more than 7%, further highlighting the sector's strong momentum.

The semiconductor sector also delivered a solid performance. Han's Laser surged to its daily upward price limit, while Cambricon Technologies soared over 7%, reflecting investors' confidence in the sector's growth potential.

Conversely, the power battery and photovoltaic sectors experienced weakness. Sungrow Power Supply fell by more than 5%, and Contemporary Amperex Technology dropped over 4%, indicating some profit-taking or concerns over near-term valuations in these areas.