Market Overview - The A-share market saw all three major indices close in the green, with the Shanghai Composite Index ending a four-day losing streak, the Shenzhen Component Index rising over 1%, and the ChiNext Index increasing by more than 2% [1][3] - The total trading volume in the Shanghai and Shenzhen markets was 2.05 trillion yuan, a decrease of 161.8 billion yuan compared to the previous trading day [1] Sector Performance - The computing power industry chain experienced a significant surge, with the CPO concept rebounding across the board. Major players in the "Yizhongtian" optical module sector saw substantial gains, including Ruisi Kanda with four consecutive daily limits and Kewan Technology with two limits in three days [1] - The liquid cooling server concept also saw a strong performance, with companies like Dayuan Pump Industry, Jialitu, Ningbo Jingda, and Qiangrui Technology hitting the daily limit [1] - The computing power leasing concept strengthened, with Data Port, Zhongbei Communication, and Yunsai Zhiliang all reaching the daily limit [1] - The collaborative computing power concept was active, with Shaoneng Co. and Guangdong Power A both hitting the daily limit [1] - The storage chip sector rose, with Langke Technology achieving two limits in three days and Baiwei Storage increasing over 9% to set a new historical high [1] Declining Sectors - Oil and gas stocks weakened, with companies like Intercontinental Oil and Tongyuan Petroleum experiencing significant declines [2] - The chemical sector faced a downturn, with Jinniu Chemical and Lutianhua hitting the daily limit down [2]

Market Overview - The A-share market showed mixed performance on March 18, with the communication and electronics sectors experiencing significant gains, becoming the highlights of the morning session [1][4]. - By the close of the morning session, the Shanghai Composite Index fell by 0.40%, while the Shenzhen Component Index rose by 0.05%, the ChiNext Index increased by 0.89%, and the Sci-Tech Innovation Index gained 0.6% [4]. Sector Performance - The communication sector led the gains with an increase of nearly 3%, featuring stocks like Century Hengtong (301428) hitting the daily limit with a 20% rise, and Pingzhi Information (300571) soaring nearly 15% [4][5]. - The electronics sector also saw a rise of over 1.4%, with multiple stocks reaching their daily limit, including Aohong Electronics and Aosikang [6][7]. - Other sectors such as computers and defense industries also showed strong performance, while oil, steel, and real estate sectors faced declines [8]. ETF Market - The ETF market remained stable overall, but the ChiNext Composite ETF (159287) experienced a sharp decline of over 18% upon resuming trading [2][10]. - This ETF had previously shown strong performance, closing with a 20% increase the day before its drop [12]. Company Highlights - Notable stocks in the communication sector included: - Century Hengtong (301428) at 39.79, up 19.99% - Pingzhi Information (300571) at 33.77, up 14.98% - Ruisi Kanda (603803) at 13.13, up 9.97% [5]. - In the electronics sector, key performers included: - Lian Dong Technology (301369) at 150.78, up 13.20% - Anlu Technology (688107) at 33.00, up 12.63% - Aibisen (300389) at 19.65, up 11.33% [7].

Core Viewpoint - The CPO concept stocks in the A-share market have shown strong performance, particularly following the announcement of NVIDIA's Feynman chip, which integrates optical communication to significantly reduce energy consumption in AI data center communications by over 70% [1]. Group 1: Stock Performance - Resconda (603803) saw a price increase of 9.97%, with a total market capitalization of 5.579 billion and a year-to-date increase of 18.39% [2]. - Tianfu Communication (300394) rose by 6.94%, with a market cap of 232.8 billion and a year-to-date increase of 47.48% [2]. - Kechuan Technology (603052) increased by 6.70%, with a market cap of 1.16 billion and a year-to-date increase of 95.21% [2]. - Dekeli (688205) experienced a 6.04% rise, with a market cap of 2.72 billion and a year-to-date increase of 24.92% [2]. - Aerospace Electric (002025) rose by 5.71%, with a market cap of 2.69 billion and a year-to-date increase of 17.81% [2]. - Xinyi Technology (300502) increased by 4.28%, with a market cap of 40.35 billion and a year-to-date decrease of 5.78% [2]. - Other notable stocks include Zhili Fang (301312) up 3.76%, Juguang Technology (688167) up 3.40%, and Luobotek (300757) up 3.30% [2]. Group 2: Market Trends - The overall trend in the CPO concept stocks indicates a positive market sentiment, driven by technological advancements in optical communication [1]. - The introduction of NVIDIA's Feynman chip is expected to have a significant impact on the energy efficiency of AI data centers, which may further boost investor interest in related stocks [1].

Group 1 - The core viewpoint of the article highlights the strong performance of CPO concept stocks in the A-share market, particularly noting the significant gains of various companies following the announcement of a new chip by Nvidia [1] Group 2 - Risconda saw a limit-up increase, while Tianfu Communication, Kechuan Technology, and Dekeli rose over 6% [1] - Aerospace Electric increased by over 5%, and Xinyi Sheng rose by over 4% [1] - Other companies such as Zhili Fang, Juguang Technology, Robotec, Xiechuang Data, and Tongfu Microelectronics experienced gains of over 3% [1] Group 3 - The news is driven by Nvidia's announcement on March 16 regarding the Feynman chip, which integrates optical communication for inter-chip connectivity, potentially reducing AI data center communication energy consumption by over 70% [1]

证券代码：603803 证券简称：瑞斯康达 公告编号：2026-005 2026 年 3 月 10 日至 2026 年 3 月 13 日连续四个交易日，公司股票收盘价格 累计涨幅达到 37.50%，已严重偏离同期上证指数和中证"通信服务-CN 通信综 合"行业指数。公司股票最近三个交易日换手率分别为 10.69%、30.01%、18.43%， 换手率明显增高，交易风险较大。 公司股价短期内累计涨幅较大，但公司基本面未发生重大变化，可能存在短 期涨幅较大后的下跌风险，敬请投资者理性决策、审慎投资，注意二级市场交易 风险。 瑞斯康达科技发展股份有限公司 股票交易风险提示公告 本公司董事会及全体董事保证本公告内容不存在任何虚假记载、误导性陈述 或者重大遗漏，并对其内容的真实性、准确性和完整性承担个别及连带责任。 重要内容提示： 瑞斯康达科技发展股份有限公司（以下简称"公司"）股票于 2026 年 3 月 9 日、3 月 10 日、3 月 11 日连续三个交易日内收盘价格涨幅偏离值累计超过 20%，根据《上海证券交易所交易规则》的有关规定，属于股票交易异常波动情 形。公司已于 2026 年 3 月 12 日披露了《股 ...

证券代码：603803 证券简称：瑞斯康达 公告编号：2026-004 瑞斯康达科技发展股份有限公司（以下简称"公司"）股票于 2026 年 3 月 9 日、3 月 10 日、3 月 11 日连续三个交易日内日收盘价格涨幅偏离值累计超 过 20%，根据《上海证券交易所交易规则》的有关规定，属于股票交易异常波动 情形。 经公司自查，并向公司实际控制人书面发函查证，截至本公告披露日， 确认不存在应披露而未披露的重大信息。 公司于 2026 年 1 月 28 日在上海证券交易所网站（www.see.com.cn）及 指定信息媒体披露了《公司 2025 年年度业绩预告》。经财务部门初步测算，预 计 2025 年度实现归属于上市公司股东的净利润为人民币-4,400 万元左右。预计 2025 年年度实现归属于上市公司股东扣除非经常性损益后的净利润为-9,100 万 元左右。敬请广大投资者注意公司经营业绩风险。 一、股票交易异常波动的具体情况 公司股票于 2026 年 3 月 9 日、3 月 10 日、3 月 11 日连续三个交易日内日收 盘价格涨幅偏离值累计超过 20%，根据《上海证券交易所交易规则》的有关规定， 属于股 ...

证券代码：603803 证券简称：瑞斯康达 公告编号：2026-004 瑞斯康达科技发展股份有限公司 股票交易异常波动公告 本公司董事会及全体董事保证本公告内容不存在任何虚假记载、误导性陈述 或者重大遗漏，并对其内容的真实性、准确性和完整性承担个别及连带责任。 重要内容提示： 瑞斯康达科技发展股份有限公司（以下简称"公司"）股票于 2026 年 3 月 9 日、3 月 10 日、3 月 11 日连续三个交易日内日收盘价格涨幅偏离值累计超 过 20%，根据《上海证券交易所交易规则》的有关规定，属于股票交易异常波动 情形。 经公司自查，并向公司实际控制人书面发函查证，截至本公告披露日， 确认不存在应披露而未披露的重大信息。 公司于 2026 年 1 月 28 日在上海证券交易所网站（www.see.com.cn）及 指定信息媒体披露了《公司 2025 年年度业绩预告》。经财务部门初步测算，预 计 2025 年度实现归属于上市公司股东的净利润为人民币-4,400 元左右。预计 2025 年年度实现归属于上市公司股东扣除非经常性损益后的净利润为-9,100 万 元左右。敬请广大投资者注意公司经营业绩风险。 一、股票交 ...

Market Overview - The A-share market opened with all three major indices rising, with the Shanghai Composite Index up 0.05%, the Shenzhen Component Index up 1.22%, and the ChiNext Index up 2.29% [4][5]. - The Hong Kong market also saw a positive opening, with the Hang Seng Index rising 1.31% and the Hang Seng Tech Index increasing by 2% [7][8]. Sector Performance - CPO concept stocks experienced a strong opening, with companies like Ruiskanda hitting the daily limit and Tianfu Communication rising over 7% [3]. - The oil and gas sector faced significant declines, with multiple companies such as Intercontinental Oil and Shandong Molong hitting the daily limit down, and others like Keli Co. and Tress dropping over 10% [3]. - The computing hardware industry chain rebounded, with CPO and memory sectors leading the gains, while sectors like coal, shipping, and chemicals saw substantial corrections [5]. AI and Technology Trends - In the Hong Kong market, AI concept stocks opened strongly, with Zhiyu rising 12% and Kingsoft Cloud increasing over 5% [6]. - A new open-source AI assistant named OpenClaw has gained significant traction in China, with daily token consumption of major models skyrocketing from 100 billion in early 2024 to 180 trillion by February 2026, and the number of intelligent agents expected to exceed 350 million by 2031 [6].

经济观察网2026年2月10日，瑞斯康达（603803）融资动态引起市场关注。其2025年2月9日的融资表现 显示，融资买入金额为1016.17万元，融资偿还1090.01万元，融资净卖出73.83万元，融资余额保持1.62 亿元。融券卖出为0股，融券偿还1500股，反映市场短期谨慎情绪。 股票近期走势 瑞斯康达近5个交易日(2026年02月06日至02月11日)股价区间涨跌幅为2.78%，振幅7.15%，最新收盘价 (02月11日)为10.35元。期间成交活跃，02月10日单日成交额达1.89亿元，换手率4.20%。技术面显示股 价处于震荡行情，20日压力位10.59元，支撑位9.74元。 以上内容基于公开资料整理，不构成投资建议。 ...

Core Viewpoint - The company, Ruiskanda Technology Development Co., Ltd., anticipates a significant reduction in losses for the year 2025, projecting a net loss of approximately RMB 44 million, which is a decrease of about RMB 78 million compared to the previous year [3][5]. Performance Forecast - The company expects a net profit attributable to shareholders of approximately RMB -44 million for the year 2025, which represents a reduction in losses of around RMB 78 million compared to the previous year [3][8]. - The projected net profit, excluding non-recurring gains and losses, is expected to be approximately RMB -91 million, indicating a decrease in losses of about RMB 57 million compared to the previous year [3][8]. Previous Year Performance - In the previous year (2024), the net profit attributable to shareholders was RMB -122.49 million, and the net profit after excluding non-recurring gains and losses was RMB -148.21 million [5]. Reasons for Current Performance Forecast - The company's revenue decreased by 11% year-on-year due to a slower-than-expected macroeconomic recovery and intensified industry competition. However, there was a quarter-on-quarter revenue growth trend throughout the year, with a 26% increase in the fourth quarter compared to the third quarter and a 10% increase compared to the same quarter last year, achieving profitability in the fourth quarter [7]. - The company has actively adjusted its product business structure in response to market changes, increasing investment in next-generation transmission and data communication products while reducing investment in low-margin broadband terminal products, resulting in a 4 percentage point increase in overall gross margin, with gross profit remaining stable compared to the previous year [7]. - The company has strengthened budget management and efficiency control, leading to an 8% decrease in period expenses year-on-year, with R&D expenses down by 13%, sales expenses down by 3%, and management expenses down by 4%, contributing to the reduction in losses [7]. Impact of Court Ruling on Investment - The company fully provided for asset impairment of RMB 27.27 million for its long-term equity investment in the joint venture Suzhou Yirui Optoelectronics Technology Co., Ltd. in 2023. Recently, the company received a court ruling terminating the bankruptcy proceedings of Suzhou Yirui [13]. - Following the court's ruling, the company will cease accounting for the long-term equity investment in Suzhou Yirui, with the original amount of RMB 40.48 million previously recorded in capital reserves being transferred to investment income, which is expected to increase the company's profit for 2025 by RMB 40.48 million [14].