On June 1st, the three major A-share indices closed lower collectively. By the market close, the Shanghai Composite Index had fallen by 0.27%, the Shenzhen Component Index dropped by 1.51%, and the ChiNext Index declined by 2.15%. In contrast, the Beijing Stock Exchange 50 Index rose by 0.45%, while the STAR 50 Index fell by 5%.

Across the broader market, more than 3,700 stocks advanced, with 170 of them hitting their daily price limit-up.

In terms of sectors, AI application plays saw a significant surge. Tiandi Online secured its third consecutive limit-up board, Zhangyue Technology achieved two limit-up boards in four days, and Visual China Group, Shuiyou Co Ltd, and Jiuqi Software also reached their daily limit-up. The AI PC concept remained active, with Chunqiu Electronics hitting its second consecutive limit-up board, and Victory Precision, Yingli Co Ltd, and Thunderobot Technology also rising to their daily limit.

On the news front, at the GTC Taipei 2026 conference on June 1st, global AI chip giant NVIDIA officially announced its entry into the personal computer processor market, targeting the general-purpose computing chip segment for PCs. NVIDIA's CEO, Jensen Huang, also highlighted several new products, including the Vera Rubin architecture and the DRIVE Hyperion autonomous taxi platform.

On the downside, the semiconductor and integrated circuit manufacturing sectors continued their decline, with Sai Microelectronics dropping over 11%. The glass fiber manufacturing sector weakened, with Sinoma Science & Technology falling to its daily limit-down. The CPO, optical communication sectors collectively pulled back, with Redboard Technology and Dongshan Precision hitting their daily limit-down, and Cambridge Technology touching its limit-down. Changxin Bochen fell nearly 12%. The optical fiber concept weakened, with Wanlong Optoelectronics dropping close to 18%. Storage chips, PCBs, and communication cables were among the sectors leading the losses.