--- title: "Hong Kong stock movement: CIG rises 11.54%, demand for high-speed optical modules surges, market confidence greatly increases!" type: "News" locale: "en" url: "https://longbridge.com/en/news/286868240.md" description: "CIG rose 11.54%; Yangtze Optical Fibre and Cable Joint Stock Limited Company fell 0.75%, with a transaction volume of HKD 2.976 billion; ZTE Corporation fell 1.11%, with a transaction volume of HKD 321 million; Nanjing Panda Electronics Company Limited rose 4.37%, with a transaction volume of HKD 185 million; BYD Electronics rose 0.75%, with a market value of HKD 60.3 billion" datetime: "2026-05-19T07:01:34.000Z" locales: - [zh-CN](https://longbridge.com/zh-CN/news/286868240.md) - [en](https://longbridge.com/en/news/286868240.md) - [zh-HK](https://longbridge.com/zh-HK/news/286868240.md) --- # Hong Kong stock movement: CIG rises 11.54%, demand for high-speed optical modules surges, market confidence greatly increases! **Hong Kong Stock Movement** CIG rose 11.54%. Based on recent key news: 1. On May 19, CIG announced strong demand for its high-speed optical module orders, driving expansion at domestic and international production bases. The company stated that 800G optical modules remain the main product in market demand, and 1.6T optical modules have entered the stage of large-scale production, with rapid growth in market demand, placing the industry in a high prosperity cycle. This news boosted investor confidence, driving the stock price up. 2. On May 19, CIG disclosed that its core material reserves are reasonable and can effectively respond to the impacts of supply chain fluctuations. The company has locked in supply and upstream capacity in advance to ensure production and operational needs. This move further enhanced market expectations for the company's future performance, promoting the rise in stock price. 3. On May 19, CIG stated that its current production capacity is operating at high load and has the ability to ensure product delivery as planned. This news indicates stable company operations, enhancing investor confidence in the company's future development, and driving the stock price up. The industry as a whole is in a high prosperity cycle, with rapid growth in market demand. **Stocks with High Trading Volume in the Industry** Yangtze Optical Fibre and Cable fell 0.75%. Based on recent key news: 1. On May 19, Yangtze Optical Fibre and Cable recorded large trades in pre-market trading, with the transaction price down 3.05% from the previous close, putting pressure on the stock price. Source: Economic Information Daily 2. On May 18, a UBS report showed that the company's net profit in the first quarter was below expectations, leading to a negative market reaction, but confidence in future profit growth remains. Source: UBS 3. On May 16, the optical fibre and cable industry benefited from the construction of global computing power centers, with significant order growth, but the rapid pace of technological iteration poses a risk of obsolescence. Source: CCTV Finance The optical fibre industry shows strong demand, with growth in export orders. ZTE Corporation fell 1.11%. Based on recent news: 1. On May 18, ZTE Corporation announced a comprehensive strategic cooperation agreement with Midea Group, with both parties to conduct in-depth cooperation in multiple fields such as smart home, digital energy, computing power infrastructure, and intelligent manufacturing. This news failed to boost the stock price and instead raised market concerns about the effectiveness of the cooperation, leading to a decline in stock price. 2. On May 18, BlackRock increased its stake in ZTE Corporation to 7.58%. Although this news shows institutional confidence in ZTE Corporation, it did not prevent the stock price from falling, reflecting market uncertainty about the company's future performance. 3. On May 18, ZTE Corporation's business expansion plans in the Latin American market did not receive a positive response from investors. Despite the company maintaining a leading market share in Latin America, the market remains skeptical about its ability to successfully achieve strategic transformation, leading to pressure on the stock price. The growth rate of exports in the home appliance industry is better than that of domestic sales, showing strong export resilience. Nanjing Panda Electronics Co., Ltd. rose 4.37%. Based on recent key news: 1. On May 19, brain-computer interface concept stocks were active in the Hong Kong stock market, with Nanjing Panda Electronics Co., Ltd. rising 8%. China launched its first 128-channel fully implanted brain-computer interface system multi-center clinical trial, driving the stock price up. Source: Zhitong Finance Brain-computer interface technology clinical trial launched, industry attention **Stocks Ranked Among the Top in Market Capitalization in the Industry** BYD Electronics, up 0.75%, with a market capitalization of HKD 60.3 billion, has no significant news recently. The trading is active, and the capital flow is evident. 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