On September 4, the three key indices of China's A-share market collectively turned positive, albeit with some notable fluctuations. Specifically, the ChiNext Index, after a nearly 2% surge earlier, experienced a decline of over 1%. Meanwhile, the Shanghai Composite Index dipped by 0.84%, and the Shenzhen Component Index fell by 0.62%. Semiconductor stocks led the market downturn, with Cambrian Innovation experiencing a significant drop of 7%.