Shanghai Composite rose 0.16% at midday; Shenzhen Composite fell 0.25% and the ChiNext Index slipped 0.47%. Lab-grown diamond names led gains—Huanghe Whirlwind and peers hit daily limits. Network security stocks were active; Zhongxin Saike recorded a third consecutive daily limit-up. CRO sector advanced, with Wanbang Pharma at the daily limit. MLCC, consumer electronics, minor metals, passenger vehicle and semiconductor sectors outperformed, while grain, defense/military, coal and education unde

Shanghai Composite rose 0.16% at midday; Shenzhen Composite fell 0.25% and the ChiNext Index slipped 0.47%. Lab-grown diamond names led gains—Huanghe Whirlwind and peers hit daily limits. Network security stocks were active; Zhongxin Saike recorded a third consecutive daily limit-up. CRO sector advanced, with Wanbang Pharma at the daily limit. MLCC, consumer electronics, minor metals, passenger vehicle and semiconductor sectors outperformed, while grain, defense/military, coal and education underperformed. Roughly 3,600 stocks were higher and half-day turnover exceeded 1.1 trillion yuan.