Core Viewpoint - The company Meiyai (China) Environmental Technology Co., Ltd. is experiencing a decline in stock price, with a drop of 6.20% on December 26, leading to a market capitalization of 8.587 billion yuan [1] Group 1: Company Overview - Meiyai specializes in the research, production, and sales of air purification products and atmospheric environmental governance products, with a primary revenue source from cleanroom air filtration and clean wall ceiling system products accounting for 90.18% of total revenue [3][7] - The company was awarded the national-level "specialized and innovative" title of "little giant" at the end of 2021, establishing itself as a leading domestic enterprise in cleanroom equipment for the electronics semiconductor industry [3] Group 2: Business Relationships and Market Position - Meiyai has developed the first domestic 28nm lithography equipment for Shanghai Microelectronics Equipment (Group) Co., Ltd., providing products that meet the highest international cleanliness standards [2] - The company has been a long-term supplier to SMIC, providing various air purification products essential for maintaining air cleanliness in advanced semiconductor manufacturing processes [2] Group 3: Financial Performance - For the period from January to September 2025, Meiyai achieved a revenue of 1.486 billion yuan, representing a year-on-year growth of 23.64%, while the net profit attributable to shareholders decreased by 5.17% to 141 million yuan [7][8] - The company has distributed a total of 80.64 million yuan in dividends since its A-share listing [9] Group 4: Market Activity - The stock has seen a net inflow of 2.6654 million yuan today, with a trading volume of 5.92 billion yuan and a turnover rate of 6.73% [1][4] - The average trading cost of the stock is 54.83 yuan, with the current price approaching a resistance level of 68.79 yuan, indicating potential for a price correction if this level is not surpassed [6]

Core Viewpoint - The environmental equipment sector experienced a rise of 1.98% on December 25, with Chuangyuan Technology leading the gains, while the overall market indices also showed positive movement [1]. Group 1: Market Performance - The Shanghai Composite Index closed at 3959.62, up by 0.47% [1]. - The Shenzhen Component Index closed at 13531.41, up by 0.33% [1]. - The environmental equipment sector's individual stock performance is detailed in the provided table, highlighting significant gains for several companies [1]. Group 2: Individual Stock Performance - Chuangyuan Technology (000551) closed at 16.68, with a rise of 10.03% and a trading volume of 1.32 million shares, amounting to a transaction value of 2.166 billion yuan [1]. - Meiai Technology (688376) closed at 67.70, up by 6.08%, with a trading volume of 86,200 shares and a transaction value of 555 million yuan [1]. - Qingda Environmental (688501) closed at 27.56, increasing by 5.23%, with a trading volume of 30,300 shares and a transaction value of 81.9394 million yuan [1]. - Other notable performers include Yingfeng Environment (000967) with a 4.73% increase and a closing price of 7.30, and Shengjian Technology (603324) with a 2.60% increase [1]. Group 3: Capital Flow - The environmental equipment sector saw a net outflow of 478 million yuan from institutional investors, while retail investors contributed a net inflow of 372 million yuan [2]. - The detailed capital flow for individual stocks indicates varying levels of net inflow and outflow among different companies, with some experiencing significant retail interest [3].

Group 1: Industry Overview - Global wafer manufacturing capital expenditure is increasing, driving strong demand for cleanroom equipment. The integrated circuit industry requires cleanrooms for nearly all major processes, and the cleanliness requirements are rising with technological advancements [1] - The U.S. has committed to building 17 new wafer fabs since the introduction of the CHIPS Act in 2022, with a total cleanroom area of 6.8 million square feet, and plans for 8 additional supply chain and advanced packaging facilities [1] - Major semiconductor manufacturers like Intel, Micron, Samsung, SK Hynix, and TSMC are expanding their operations in the U.S. due to strong demand [1] Group 2: Company Performance - The overseas revenue of Meiye Technology is expected to reach approximately 22.8 million yuan in 2024, accounting for 13.2% of total revenue, with further increases anticipated as global semiconductor capital expenditure rises [2] - The gross margin for overseas business is typically higher than domestic, with an estimated 33% for overseas operations compared to 26.4% for domestic [2] - The company has established 10 domestic and 3 overseas bases, focusing on Southeast Asia and expanding into the U.S. and Europe [2] Group 3: Certifications and Market Expansion - The company has achieved significant international customer certifications, including FM, UL, CE, and AHAM, facilitating entry into global markets [3] - The company is actively expanding its application areas, providing solutions for the overseas expansion of leading lithium battery companies and engaging with various semiconductor and renewable energy firms [3] Group 4: Revenue and Profitability - The revenue share from high-margin consumables, such as semiconductor cleanroom filters, is expected to increase, supported by stable relationships with downstream customers [4] - The average gross margin for filter products was 36.5% from 2018 to 2021, compared to 20.4% for equipment [4] - Projected net profits for the company are estimated at 233 million yuan, 307 million yuan, and 406 million yuan for 2025-2027, with year-on-year growth rates of 21.4%, 31.9%, and 32.2% respectively [4]

丨证券研究报告丨 [Table_scodeMsg1] 公司研究丨点评报告丨美埃科技（688376.SH） [Table_Title] 美埃科技跟踪：洁净室设备景气提升，国际龙头 客户认证获突破 报告要点 [Table_Summary] 美埃科技主营泛半导体领域的洁净室设备和耗材等。当前，全球晶圆制造资本开支向上，带动 洁净室设备需求旺盛；公司已经通过了半导体领域多个国际著名厂商的合格供应商认证，进入 其核心国际客户供应链，海外营收占比有望提升；同时为龙头锂电企业海外扩张提供配套解决 方案。继续看好公司未来的成长机会。 分析师及联系人 [Table_Author] SAC：S0490517090001 SAC：S0490520070003 SAC：S0490524080004 SAC：S0490525070006 SFC：BUV415 徐科 贾少波 李博文 盛意 请阅读最后评级说明和重要声明 %% %% %% %% research.95579.com 1 公司已取得核心国际客户的认证突破。海外产品认证需半年以上的认证周期，公司在前期市场 开拓阶段着手获取海外认证体系，目前已获得 FM、UL、CE、AHAM 等 ...

| 688135 | 利扬 | 22576.92 | 11.14 | 0.00 | | 0.96 | | --- | --- | --- | --- | --- | --- | --- | | | 芯片 | | | | | | | 688150 | 莱特 | 31931.18 | 11.08 | 157.65 | 29.33 | 0.83 | | | 光电 | | | | | | | 688629 | 华丰 | 112440.72 | 10.23 | 377.00 | 125.88 | 14.27 | | | 科技 | | | | | | | 688290 | 景业 智能 | 25501.99 | 10.14 | 26.00 | -11.64 | -7.80 | | | 德科 | | | | | | | 688205 | 立 | 112346.95 | 9.84 | 172.30 | 31.46 | 2.52 | | 688651 | 盛邦 安全 | 1 1136.94 | 9.38 | 0.00 | | -4.78 | | 68831 1 | 盟升 电子 | 19413.49 | 8.99 | 0.00 | ...

（文章来源：证券时报网） 资金流向方面，该股今日全天主力资金净流入9119.47万元。（数据宝） 美埃科技12月23日龙虎榜 | 买入营业部名称 | 买入金额(万元) | | --- | --- | | 开源证券股份有限公司西安西大街证券营业部 | 2081.98 | | 国泰海通证券股份有限公司上海长宁区江苏路证券营业部 | 2032.58 | | 湘财证券股份有限公司杭州西溪路证券营业部 | 1617.02 | | 华泰证券股份有限公司上海静安区威海路证券营业部 | 1455.35 | | 国泰海通证券股份有限公司成都龙腾东路证券营业部 | 1424.62 | | 卖出营业部名称 | 卖出金额(万元) | | 机构专用 | 9688.20 | | 机构专用 | 4049.79 | | 国投证券股份有限公司雄安分公司 | 1889.12 | | 东方证券股份有限公司成都建设路证券营业部 | 1576.93 | | 华泰证券股份有限公司溧水珍珠北路证券营业部 | 1384.20 | 12月23日美埃科技（688376）收盘价64.20元，收盘涨停，全天换手率6.90%，振幅19.73%，成交额5.81 亿元。 ...

Summary of Key Points Core Viewpoint - On December 23, a total of 48 stocks were involved with institutional investors, with 24 stocks showing net buying and 24 stocks showing net selling. Group 1: Institutional Net Buying - The top three stocks with the highest net buying by institutions were: - Duofuduo: Net buying amount of 210 million yuan, with a daily increase of 10.02% [1][2] - Guojijinggong: Net buying amount of 200 million yuan, with a daily decrease of 6.33% [1][2] - Kema Technology: Net buying amount of 161 million yuan, with a daily increase of 9.70% [1][2] Group 2: Institutional Net Selling - The top three stocks with the highest net selling by institutions were: - Meiai Technology: Net outflow amount of 137 million yuan, with a daily increase of 20.00% [1][4] - Yaxiang Integration: Net outflow amount of 126 million yuan, with a daily increase of 10.00% [1][4] - Xihua Technology: Net outflow amount of 112 million yuan, with a significant daily increase of 264.46% [1][4]

Market Overview - On December 23, the Shanghai Composite Index rose by 0.07%, the Shenzhen Component Index increased by 0.27%, and the ChiNext Index gained 0.41% [2] - A total of 58 stocks appeared on the "Dragon and Tiger List" due to significant trading activity, with the highest net inflow of funds recorded for Yingweike (002837.SZ) at 842 million yuan [2][4] Stock Performance - Yingweike saw a net buying amount of 842 million yuan, accounting for 11.07% of the total trading volume, and closed up by 10% with a turnover rate of 9.03% [2][4] - The stock with the highest net outflow was Aerospace Machinery (600151.SH), which experienced a net selling of 515 million yuan, representing 12.02% of the total trading volume, and closed down by 9.98% with a turnover rate of 17.86% [2][5] Institutional Activity - Institutions were active in 35 stocks on the Dragon and Tiger List, with a total net buying of 526 million yuan, comprising 15 net buyers and 20 net sellers [5][6] - The stock with the highest institutional net buying was Duofuduo (002407.SZ), which closed up by 10.02% and had a turnover rate of 16.22% [6] Northbound Capital - Northbound funds participated in 25 stocks on the Dragon and Tiger List, with a total net buying of 561 million yuan [11] - The stock with the highest net buying from northbound funds was Guojijin (002046.SZ), with a net inflow of 238 million yuan, accounting for 6.18% of the total trading volume [11] Common Trends - Both institutions and northbound funds jointly net bought stocks such as Guojijin, Hainan Haiyao, Hongda Electronics, and others, while they jointly net sold stocks like Junda Shares, Tianji Shares, and others [15][16]

Core Viewpoint - The photolithography concept sector has shown a significant increase of 2.11%, leading the market in terms of growth, with 28 stocks rising, including major gainers like Meiyetech and Tongfei Co., both reaching a 20% limit up [1][2]. Market Performance - The photolithography sector led the market with a 2.11% increase, while other sectors like terahertz and fluorochemical concepts saw declines of -2.72% and -2.54% respectively [2]. - Key stocks in the photolithography sector include: - Zhongguang Fanglei: +20.00% - Tongjing Technology: +8.86% - Tongfei Co.: +20.00% - Meiyetech: +20.00% [4][5]. Capital Flow - The photolithography sector attracted a net inflow of 161 million yuan, with 20 stocks receiving significant capital inflow, and 7 stocks exceeding 50 million yuan in net inflow [2]. - Leading stocks by net capital inflow include: - Zhongguang Fanglei: 368.42 million yuan - Tongjing Technology: 221.31 million yuan - Tongfei Co.: 148.40 million yuan [2][4]. Capital Inflow Ratios - The top stocks by net inflow ratio in the photolithography sector are: - Zhongguang Fanglei: 31.95% - Meiyetech: 15.69% - Tongfei Co.: 14.88% [3].

英维克（002837）（002837）市值突破千亿大关。 A股今日（12月23日）走势出现明显分化，以保险、银行为首的大市值个股拉升，小盘股走势疲弱；港股午后下探，恒生指数翻绿。 具体来看，三大股指盘中强势上扬，午后涨幅有所收窄。截至收盘，沪指微涨0.07%报3919.98点，深证成指涨0.27%，创业板指涨 0.41%，中证2000指数跌0.63%，沪深北三市合计成交19216亿元，较此前一日增加近400亿元。 A股市场超3800股飘绿，旅游餐饮、零售、食品饮料等消费板块集体下挫，曲江文旅（600706）跌停，近日4连板的庄园牧场 （002910）逼近跌停；商业航天概念跳水，顺灏股份（002565）跌停，中国卫通（601698）跌超9%；光刻机、先进封装等半导体产业 链股强势，美埃科技、同飞股份（300990）等涨停；液冷服务器等AI产业链股拉升，英维克（002837）尾盘涨停续创新高；锂电产业 链股崛起，奕东电子（301123）涨停续创新高，华盛锂电等涨超10%。 港股方面，地平线机器人跌约4%，快手跌超3%，腾讯控股、京东健康、药明康德（603259）等跌逾2%。 半导体产业链强势 光刻机、先进封装等半 ...