A-shares midday review: The three major indices fluctuate differently in the morning session, with computing hardware stocks such as CPO, PCB, and optical fiber collectively strengthening.

Mars Finance News, April 17—On the early trading session of April 17, the three major A-share indices showed mixed performance. The Shanghai Composite Index fell 0.3% to 4,043.45 points. The Shenzhen Component rose 0.33% to 14,845.89 points. The ChiNext Index rose 0.82% to 3,655.82 points, and the Beijing 50 Index rose 0.03%.

Total trading value across the Shanghai and Shenzhen markets was approximately 15805.2 billion yuan, an increase of about 1186.46 billion yuan compared with the prior trading day. As of the midday close, 1,644 stocks across the market were up, and 3,774 were down, including 54 stocks that hit the daily limit-up and 6 stocks that hit the daily limit-down.

In terms of sector themes, CPO, PET copper foil, PCB, lithography machines, optical fibers, memory chips, non-ferrous metals, and the battery sector led the gains. Meanwhile, tourism and hotels, innovative drugs, oil and gas extraction and services, education, and grain concept stocks led the declines. On the trading floor, optical-module leader JONJEE Optoelectronics reported a first-quarter performance that exceeded expectations, reflecting strong demand across the AI industry chain. Computer-power hardware stocks such as CPO, PCB, and optical fibers rose collectively, and more than 10 stocks—including Cambridge Technology, Giantech Opto-Electronics, and Huasheng Chang—logged limit-ups. With April lithium battery production scheduling staying at a high level, the battery industry chain saw repeated bursts of activity; Shengyang Co., Ltd. recorded a seven-day consecutive limit-up. The minor-metals sector maintained its recent uptrend, with Yunnan Chihong sealing the daily limit. CRO and innovative-drug concept stocks fluctuated and adjusted, giving back some of their earlier gains, while WuXi AppTec fell by more than 5% intraday. Kweichow Moutai’s 2025 financial report showed the first negative growth in both revenue and profit, and the stock fell by more than 4% during the trading session. (Kegu Bao Report)