On June 25, 2026, the three principal indices of A-shares experienced a collective upward trend, with the Shanghai Composite Index registering a 0.23% increase, the Shenzhen Component Index surging by 1.82%, and the ChiNext Index climbing by 2.84%. On the trading board (market), GPU and CPO concepts witnessed a significant surge. Notably, Demingli and Changdian Technology reached their daily limit, Biwin Storage soared over 15%, while YiChang Telecom and GigaDevice each rose by more than 9%. The cultivated diamond sector also showed strength, with Worldia and HuiFeng Diamond surging over 10%. Conversely, the precious metals and oil and gas sectors experienced a downturn, with Zijin Mining declining over 6%, and Chifeng Gold and CNOOC dropping by more than 5%. The overall market landscape was marked by a higher number of declining stocks, with over 4,200 stocks experiencing a downturn across the board.