Zhong Guo Ji Jin Bao·2026-01-30 04:54Market Overview - A-shares experienced significant volatility on January 30, with major indices showing mixed performance. The market initially opened lower, with the ChiNext index dropping over 2.5% and the Shanghai and Shenzhen indices falling more than 2% at one point. However, the ChiNext index later turned positive [1][2]. Sector Performance - Resource stocks faced heavy selling pressure, with the industrial metals index dropping 9% and the precious metals index falling 8.7%. The A-share resource index and rare earth industry index both saw declines of 6%, while the bulk commodity index fell over 4% [2][6]. - The CPO (光模块) concept sector led the market gains, with significant increases in agriculture, animal husbandry, fishery, tourism, and hotel sectors [3][12]. Individual Stock Movements - A total of 3,872 stocks declined, while only 1,494 stocks rose, with 27 stocks hitting the daily limit up. The total trading volume for the Shanghai and Shenzhen markets reached 1.93 trillion yuan, a decrease of 836 billion yuan compared to the previous trading day [5]. - Notable declines included companies in the precious metals sector, with stocks like Xiaocheng Technology (300139) and Chifeng Gold (600988) hitting the daily limit down of 20% and 10% respectively. Other companies such as Zhongjin Gold (600489) and Shandong Gold (600547) also saw significant declines [6][7]. Precious Metals and Industrial Metals - The precious metals sector was particularly weak, with multiple stocks hitting the daily limit down. For instance, Xiaocheng Technology recorded a 20% drop, while several others, including Shandong Gold and Zhongjin Gold, saw declines of 10% [6][8]. - In the industrial metals sector, companies like Nanshan Aluminum (600219) and Tongling Nonferrous Metals (000630) also faced significant losses, with many stocks recording a 10% drop [9][10]. CPO Sector Insights - The CPO sector showed resilience, with stocks like Tianfu Communication (300394) rising by 11.92%. Other companies in the sector, including Lian Technology (301205) and Zhongji Xuchuang (300308), also experienced gains [12][13]. - A recent report from CignalAI indicated that the optical module market is expected to exceed $18 billion in revenue by 2025, driven by AI-driven data center and transmission network construction [12].