On the midday of June 4, 2026, the three major A-share indices—a key barometer of China's stock market performance—closed collectively in the red. The Shanghai Composite Index retreated by 0.43%, the Shenzhen Component Index fell 0.46%, and the ChiNext Index, known for its focus on innovative and growth-oriented enterprises, declined by 1.10%.

Amidst the broader market weakness, the semiconductor industry chain stood out as a bright spot. CSSC Special Gas Technology and Dawei Shares soared to their daily limit, signaling robust investor confidence in the sector's growth prospects. National Silicon Industry Group's shares also surged, climbing more than 10% and further underscoring the sector's strong momentum.

Glass substrate concept stocks also exhibited notable activity. BOE Technology Group A and Hongxing Development both surged to their daily limit, reflecting heightened market interest in this niche segment. Tiel Laser's shares, meanwhile, rose by more than 6%, adding to the positive sentiment surrounding the sector.

In contrast, precious metals and oil and gas stocks faced headwinds. Tongyuan Petroleum tumbled nearly 10%, while Chifeng Gold fell by more than 3%, highlighting the divergent performance across different sectors. Overall, the market witnessed a broad-based decline, with more than 4,200 individual stocks finishing in negative territory.