Summary of Key Points Core Viewpoint - On December 17, a total of 32 stocks were involved with institutional investors, with 18 showing net buying and 14 showing net selling. Group 1: Institutional Net Buying - The top three stocks with the highest net buying by institutions were: - Juguang Technology: Net buying amount of 291.32 million yuan, with a price increase of 17.34% [1][2] - ShenNan Circuit: Net buying amount of 173.44 million yuan, with a price increase of 10.00% [1][2] - Hualing Cable: Net buying amount of 124.66 million yuan, with a price increase of 5.21% [1][2] Group 2: Institutional Net Selling - The top three stocks with the highest net selling by institutions were: - Yingweike: Net selling amount of 220.25 million yuan, with a price increase of 10.00% [1][3] - XueRen Group: Net selling amount of 140.22 million yuan, with a price increase of 2.72% [1][3] - Guangxun Technology: Net selling amount of 124.14 million yuan, with a price increase of 10.01% [1][3]

Core Insights - The rapid development of AI computing power and data centers has led to a surge in demand for optical modules, which are core components of communication links [1][2][3] - Companies such as LianTe Technology, Guangxun Technology, and others are leading the market with significant stock price increases [1][2] Company Summaries - **LianTe Technology (301205.SZ)**: Latest stock price is 174.00 CNY with a daily increase of +20.00%. The company focuses on optical communication module research, production, and sales, mastering key technologies like optoelectronic chip integration [1] - **Guangxun Technology (002281.SZ)**: Latest stock price is 68.59 CNY with a daily increase of +10.01%. It is a global leader in optoelectronic devices, having developed silicon photonics 2.5D/3D integration packaging technology [1] - **JuGuang Technology (688167.SS)**: Latest stock price is 186.02 CNY with a daily increase of +17.34%. The company has acquired Swiss products for efficient collimation and focusing of laser light sources used in optical modules [1] - **Yuanjie Technology (688498.SH)**: Latest stock price is 664.00 CNY with a daily increase of +10.67%. The company is focused on laser products required for CPO, with CW high-power laser technology applicable in the CPO field [1] - **Xinyi Technology (300502.SZ)**: Latest stock price is 446.10 CNY with a daily increase of +9.55%. The company has a deep layout in the CPO field, offering over 3000 types of optical module products across various industry scenarios [1] - **Tianfu Communication (300394.SZ)**: Latest stock price is 217.78 CNY with a daily increase of +9.27%. The company provides overall solutions for optical devices, with mid-to-high-speed optical devices serving CPO-related optical modules [1] - **Hengtong Optic-Electric (600487.SH)**: Latest stock price is 21.67 CNY with a daily increase of +8.84% [1] Additional Company Highlights - **Ruijie Networks (301165.SZ)**: Latest stock price is 83.52 CNY with a daily increase of +7.84%. The company has launched a CPO technology data center switch and contributed to the COBO/CPO switch design white paper [2] - **Guangku Technology (300620.SZ)**: Latest stock price is 166.92 CNY with a daily increase of +7.13%. The company has introduced a high-brightness polarization-maintaining fiber array collimator for CPO applications [2] - **Zhongji Xuchuang (300308.SZ)**: Latest stock price is 589.98 CNY with a daily increase of +6.92%. It is a global leader in optical modules, with CPO being an important evolution direction for its products [2] - **Changxin Bochuang (300548.SZ)**: Latest stock price is 134.33 CNY with a daily increase of +6.91%. The company has released external light source modules for CPO based on silicon photonics technology [2] - **Shijia Photon (688313.SH)**: Latest stock price is 101.90 CNY with a daily increase of +6.63%. The company offers high-power CW DFB laser chip products applicable in CPO packaging [2] - **Huagong Technology (000988.SZ)**: Latest stock price is 77.29 CNY with a daily increase of +6.45%. The company is advancing next-generation high-speed optical modules starting from 1.6T and 3.2T [2] - **Cambridge Technology (603083.SH)**: Latest stock price is 113.00 CNY with a daily increase of +6.00%. The company is researching CPO optoelectronic hybrid packaging technology in collaboration with equipment manufacturers [2] Emerging Trends - Companies are increasingly focusing on CPO (Co-Packaged Optics) technology, which is seen as a significant evolution in optical modules, with many firms actively developing related products and technologies [1][2][3]

| 600869 | 远东股 | 3.05 | 1.95 | 1394.17 | 4.19 | | --- | --- | --- | --- | --- | --- | | | 份 | | | | | | 300557 | 理工光 | 5.74 | 12.1 1 | 1357.51 | 2.94 | | | 科 | | | | | | 300757 | 罗博特 科 | 4.44 | 3.97 | 1231.14 | 0.99 | | 300565 | 科信技 术 | 5.08 | 12.47 | 1201.86 | 3.34 | | 603386 | 骏亚科 技 | -0.46 | 9.25 | 882.74 | 1.99 | | 688518 | 联赢激 光 | 2.24 | 2.22 | 776.92 | 4.69 | | 688143 | 长盈通 | 5.95 | 7.64 | 768.62 | 1.87 | | 301517 | 陕西华 | 2.49 | 15.90 | 477.65 | 0.50 | | | 达 | | | | | | 300398 | 飞凯材 料 | -1.20 | 5.03 | ...

F5G概念资金流入榜 截至12月17日收盘，F5G概念上涨2.71%，位居概念板块涨幅第10，板块内，31股上涨，光迅科技涨 停，亨通光电、太辰光、中际旭创等涨幅居前，分别上涨8.84%、8.65%、6.92%。跌幅居前的有通宇通 讯、瑞斯康达、梅安森等，分别下跌10.00%、5.31%、1.49%。 今日涨跌幅居前的概念板块 | 概念 | 今日涨跌幅（%） | 概念 | 今日涨跌幅（%） | | --- | --- | --- | --- | | 共封装光学(CPO) | 3.76 | 海南自贸区 | -2.09 | | 铜缆高速连接 | 3.55 | 赛马概念 | -1.08 | | 液冷服务器 | 3.35 | 网约车 | -0.90 | | 金属铅 | 3.20 | 自由贸易港 | -0.90 | | 中国AI 50 | 3.18 | 军工信息化 | -0.70 | | AI PC | 3.11 | 转基因 | -0.65 | | 同花顺果指数 | 3.08 | 租售同权 | -0.64 | | 光纤概念 | 2.99 | 粮食概念 | -0.60 | | PET铜箔 | 2.73 | 生态农业 | ...

截至12月17日收盘，共封装光学(CPO)概念上涨3.76%，位居概念板块涨幅第1，板块内，120股上涨， 奕东电子、联特科技等20%涨停，光迅科技、长飞光纤、中瓷电子等涨停，华光新材、炬光科技、生益 电子等涨幅居前，分别上涨18.34%、17.34%、13.56%。跌幅居前的有通宇通讯、斯瑞新材、赛微电子 等，分别下跌10.00%、6.18%、5.53%。 今日涨跌幅居前的概念板块 | 概念 | 今日涨跌幅（%） | 概念 | 今日涨跌幅（%） | | --- | --- | --- | --- | | 共封装光学(CPO) | 3.76 | 海南自贸区 | -2.09 | | 铜缆高速连接 | 3.55 | 赛马概念 | -1.08 | | 液冷服务器 | 3.35 | 网约车 | -0.90 | | 金属铅 | 3.20 | 自由贸易港 | -0.90 | | 中国AI 50 | 3.18 | 军工信息化 | -0.70 | | AI PC | 3.11 | 转基因 | -0.65 | | 同花顺果指数 | 3.08 | 租售同权 | -0.64 | | 光纤概念 | 2.99 | 粮食概念 | -0. ...

截至12月17日收盘，液冷服务器概念上涨3.35%，位居概念板块涨幅第3，板块内，145股上涨，奕东电 子20%涨停，飞龙股份、光迅科技、大元泵业等涨停，荣亿精密、华光新材、同飞股份等涨幅居前，分 别上涨19.13%、18.34%、14.46%。跌幅居前的有罗曼股份、航天电器、中光防雷等，分别下跌7.59%、 3.35%、3.06%。 今日涨跌幅居前的概念板块 | 概念 | 今日涨跌幅（%） | 概念 | 今日涨跌幅（%） | | --- | --- | --- | --- | | 共封装光学(CPO) | 3.76 | 海南自贸区 | -2.09 | | 铜缆高速连接 | 3.55 | 赛马概念 | -1.08 | | 液冷服务器 | 3.35 | 网约车 | -0.90 | | 金属铅 | 3.20 | 自由贸易港 | -0.90 | | 中国AI 50 | 3.18 | 军工信息化 | -0.70 | | AI PC | 3.11 | 转基因 | -0.65 | | 同花顺果指数 | 3.08 | 租售同权 | -0.64 | | 光纤概念 | 2.99 | 粮食概念 | -0.60 | | PET铜箔 ...

资金流向方面，今日该股主力资金净流入5.64亿元，其中，特大单净流入5.18亿元，大单资金净流入 4607.40万元。近5日主力资金净流出2.21亿元。 融资融券数据显示，该股最新（12月16日）两融余额为20.99亿元，其中，融资余额为20.78亿元，融券 余额为2070.21万元。近5日融资余额合计减少1.77亿元，降幅为7.85%，融券余额合计减少313.09万元， 降幅13.14%。（数据宝） 光迅科技今日涨停，全天换手率6.35%，成交额32.73亿元，振幅10.01%。龙虎榜数据显示，机构净卖出 1.24亿元，深股通净买入6642.09万元，营业部席位合计净买入1.69亿元。 深交所公开信息显示，当日该股因日涨幅偏离值达8.32%上榜，机构专用席位净卖出1.24亿元，深股通 净买入6642.09万元。 证券时报·数据宝统计显示，上榜的前五大买卖营业部合计成交10.40亿元，其中，买入成交额为5.76亿 元，卖出成交额为4.65亿元，合计净买入1.11亿元。 具体来看，今日上榜的营业部中，共有4家机构专用席位现身，即买三、买五、卖二、卖三、卖四、卖 五，合计买入金额1.39亿元，卖出金额2.64亿元 ...

Market Overview and Sector Characteristics - The Shanghai Composite Index closed up by 1.19%, while the Shenzhen Component Index fell by 2.40%, with the median change in A-shares being an increase of 0.61% [1] - A total of 49 stocks hit the daily limit up, an increase of 7 from the previous day, while 19 stocks hit the limit down, an increase of 4 [2] Industry Characteristics - The sectors with the most limit-up stocks today were communication equipment, specialized equipment, and general equipment [3] - In the communication equipment sector, 5 stocks reached the limit up, driven by accelerated 5G construction and AI computing demand [4] - The specialized equipment sector saw 4 stocks limit up, supported by policy backing and recovering orders [4] - The general equipment sector had 3 stocks limit up, boosted by policy support for equipment upgrades and enhanced manufacturing recovery expectations [4] Concept Characteristics - The most represented concepts among limit-up stocks were optical communication, liquid cooling servers, and consumer sectors [5] - In the optical communication concept, 7 stocks hit the limit up, benefiting from the explosive demand for AI computing and the acceleration of 800G optical module shipments [5] - The liquid cooling server concept also had 7 stocks limit up, as liquid cooling technology becomes the mainstream solution for heat dissipation due to AI computing demand [5] - The consumer sector had 6 stocks limit up, supported by policy stimulus and the year-end consumption peak, with strong expectations for consumer potential [5] Limit-Up Stock List - Among the limit-up stocks, 3 reached historical highs, including Yingweike, Ping An Electric, and Huanxu Electronics [6] - 10 stocks reached near one-year highs, including Shengtong Energy, Jiamei Packaging, and others [7][8] Main Capital Flow - The top 5 stocks with the highest net inflow of main capital among limit-up stocks were Yingweike, Guojiji Heavy Industry, Guangxun Technology, ShenNan Circuit, and Meinian Health [9][10] - The stocks with the highest net inflow as a percentage of market value included Wangzi New Materials, Nanjing Business Travel, and others [10] Continuous Limit-Up Situation - There were 41 first-limit stocks today, with 5 stocks achieving a second limit up and 3 stocks achieving three or more consecutive limit ups [11] - The top 5 stocks with the most consecutive limit ups included Baida Group, Shengtong Energy, and others [11]

光迅科技(002281.SZ)今日涨停，换手率6.35%，成交额32.73亿元。龙虎榜数据显示，深股通买入2.67亿元，卖出2.01亿元，净买入6642万元；四家机构买入 1.39亿元，卖出2.64亿元，净卖出1.24亿元；游资"量化打板"位列买二席位，净买入1.01亿元；"温州帮"位列买四席位，净买入6813万元。(格隆汇) | 序号 | | 交易营业部名称 | | 买入金额(万) | 占总成交比例 | | --- | --- | --- | --- | --- | --- | | | 深股通专用 | | 688次 44.19% 2 | 26719.44 | 8.16% | | 2 | 机构专用 | | 1545次 40.71% | 6773.28 | 2.07% | | 3 | 机构专用 | | 1545次 40.71% | 7171.14 | 2.19% | | 4 | 机构专用 | | 1545次 40.71% | 0.00 | 0.00% | | 5 | 机构专用 | | 1545次 40.71% | 0.00 | 0.00% | | | | 六十五分点击于北上名后于 | | 57582 37 | ...

转自：证券时报 人民财讯12月17日电，CPO概念持续走高，截至发稿，光迅科技、联特科技等多股涨停，德科立、中际 旭创等涨幅居前。 人民财讯12月17日电，CPO概念持续走高，截至发稿，光迅科技、联特科技等多股涨停，德科立、中际 旭创等涨幅居前。 转自：证券时报 ...