On October 30, 2025, the three major indices of China's A-share market opened with a collective downward trend. The Shanghai Composite Index kicked off the trading day 0.21% lower, while the Shenzhen Component Index was down 0.22% at the start. The ChiNext Index also began the day on a weak note, dropping 0.32%.

In terms of sectoral performance, the shipping, computer hardware, and electrical power grid sectors emerged as the top gainers. Great Power Energy stood out with a remarkable surge of over 12%. Jiangbo Long also fared well, with its shares increasing by more than 7%. China Merchants Energy Shipping wasn't far behind, climbing over 4% in early trading.

On the flip side, the communication equipment, biotechnology, and precious metals sectors faced significant headwinds. Eoptolink Technology and WuXi AppTec bore the brunt, with both stocks plummeting over 5%. China Gold International Resources also took a hit, falling by more than 2%.