Group 1 - The company has begun sample delivery for its 200G EML and reports that the verification progress is going smoothly [1]

Group 1 - The core viewpoint of the article is that Changguang Huaxin's laser products can be applied in direct writing lithography [1] Group 2 - Investors inquired about the application of the company's laser products in lithography machines [1] - Changguang Huaxin confirmed that their products are suitable for direct writing lithography [1]

Group 1 - The core point of the article is that Changguang Huaxin (688048.SH) has begun sampling its 200G EML, and the progress of phase verification is going smoothly [1] Group 2 - The company is actively engaging with investors through its interactive platform, indicating transparency and communication regarding its technological advancements [1] - The successful progress in the verification phase suggests potential for future product development and market readiness [1]

格隆汇12月29日丨长光华芯(688048.SH)在投资者互动平台表示，公司的产品可以应用于直写光刻。 ...

格隆汇12月29日丨长光华芯(688048.SH)在投资者互动平台表示，公司的产品可以应用于直写光刻。 ...

Group 1 - The core point of the article is that Changguang Huaxin (688048.SH) has begun sampling its 200G EML, and the progress of phase verification is going smoothly [1] Group 2 - The company is actively engaging with investors through its interactive platform to provide updates on its technological advancements [1] - The successful progress in the verification phase indicates potential for future product development and market readiness [1]

Group 1 - The core viewpoint of the article highlights that changes in demand for high-speed optical communication chips present potential opportunities for the company [2] Group 2 - The company responded to investor inquiries on an interactive platform regarding the demand fluctuations in the optical communication chip sector [2] - The company advised stakeholders to refer to publicly disclosed information for specific operational and financial data [2]

证券之星消息，12月26日半导体板块较上一交易日下跌0.73%，长光华芯领跌。当日上证指数报收于 3963.68，上涨0.1%。深证成指报收于13603.89，上涨0.54%。半导体板块个股涨跌见下表： | 代码 | 名称 | 收盘价 | 涨跌幅 | 成交量(手) | 成交额(元) | | | --- | --- | --- | --- | --- | --- | --- | | 001309 | 德明利 | 239.00 | 10.00% | 26.31万 | | 61.87亿 | | 688230 | 芯导科技 | 70.77 | 6.82% | 3.52万 | | 2.50亿 | | 688702 | 盛树通信 | 137.70 | 5.65% | 4.44万 | | 2660'9 | | 301308 | 江波龙 | 266.89 | 4.57% | 19.89万 | | 53.01亿 | | 688605 | 先锋精科 | 68.39 | 4.41% | 13.80万 | | 9.64亿 | | 301611 | 珂玛科技 | 85.81 | 4.05% | 32.82万 | | 28.12亿 | ...

（文章来源：每日经济新闻） 每经AI快讯，12月26日，午后CPO概念持续调整，长光华芯跌超10%，罗博特科、腾景科技、联特科 技、源杰科技、仕佳光子、德科立均跌超5%。 ...

Market Overview - The Shanghai Composite Index increased by 0.23% as of 13:57, with a trading volume of 1,061.49 million shares and a transaction value of 17,900.52 billion yuan, representing a 16.10% increase compared to the previous trading day [1] Industry Performance - The top-performing industries included: - Non-ferrous metals: up 3.88% with a transaction value of 1,305.04 billion yuan, a 53.70% increase from the previous day, led by Xiaocheng Technology, which rose by 11.43% [1] - Steel: up 1.70% with a transaction value of 99.99 billion yuan, a 27.49% increase, led by Hainan Mining, which increased by 10.02% [1] - Retail: up 1.50% with a transaction value of 366.81 billion yuan, a 10.66% increase, led by Yinzuo Co., which rose by 10.03% [1] Underperforming Industries - The industries with the largest declines included: - Electronics: down 0.90% with a transaction value of 2,734.97 billion yuan, a 1.58% increase from the previous day, led by Changguang Huaxin, which fell by 10.00% [2] - Banking: down 0.65% with a transaction value of 130.30 billion yuan, a 3.69% decrease, led by Xiamen Bank, which decreased by 1.42% [2] - Communication: down 0.52% with a transaction value of 1,007.17 billion yuan, a 5.35% decrease, led by Shijia Photon, which fell by 5.29% [2]