Core Viewpoint - Dongshan Precision, a leading PCB company, is seeking to go public in Hong Kong despite stagnant performance over the past few years, with a significant stock price increase of over 500% since January 2024, raising questions about its high valuation and ability to attract investors [2][10][27] Group 1: Financial Performance - In the first three quarters of 2025, Dongshan Precision reported revenue of 27.071 billion yuan, a slight increase of 2.28% year-on-year, and a net profit of 1.223 billion yuan, up 14.61% year-on-year [2] - The company's net profit in Q3 2025 decreased by 8.19% year-on-year, amounting to 465 million yuan [2] - The PCB segment is the largest business for the company, contributing 65.2% of total revenue in the first half of 2025, with PCB revenue reaching 11.06 billion yuan [3] Group 2: Market Position and Competition - Dongshan Precision primarily produces flexible PCBs, with major clients including Tesla and Apple, but has seen slow revenue growth due to stagnant sales in these sectors [5] - In contrast, competitors like Shenghong Technology have experienced significant growth, with a 72% increase in net profit in 2024, highlighting Dongshan's lag in high-layer PCB production [5][6] Group 3: IPO and Fundraising - The company plans to raise funds through its IPO to repay debts, with a total of 13.8 billion yuan in outstanding loans related to various projects [17] - Dongshan Precision's current TTM P/E ratio exceeds 110, significantly higher than competitors, raising concerns about investor acceptance at this valuation [10][11][19] - The company has a substantial short-term financial burden, needing to pay over 11 billion yuan to suppliers, which is a record high [20][24] Group 4: Strategic Expansion - Dongshan Precision has invested heavily in acquisitions and expansions, including an 18 billion yuan project for multilayer PCBs, which is 90% complete as of mid-2025 [6] - The company is also acquiring Solstice Optoelectronics for approximately 6.29 billion USD, which is expected to enhance its capabilities in optical modules [12][14][16] - The company has raised a total of 26.766 billion yuan since its listing, indicating a reliance on external financing for growth [22]

Quantitative Models and Construction Methods Model Name: Index Component Adjustment Impact Model - **Model Construction Idea**: The model aims to measure the impact of index component adjustments on stock prices, considering the scale of passive products tracking the index and the average trading volume of the stocks[7][8][9]. - **Detailed Construction Process**: - The model calculates the impact of index adjustments using the following formula: $$ \mathrm{effect}_{s} = \frac{\sum_{i}^{m} wt_{in} * index_{-}scale_{i} - \sum_{i}^{n} wt_{out} * index_{-}scale_{i}}{avg_{-}amt_{s}} $$ where: - \( wt_{in} \) represents the buy weight of the stock in the index - \( wt_{out} \) represents the sell weight of the stock in the index - \( index_{-}scale_{i} \) represents the total scale of passive products tracking the index - \( avg_{-}amt_{s} \) represents the average daily trading volume of the stock over the past two weeks[7][8][9]. - **Model Evaluation**: The model effectively quantifies the potential trading impact on stocks due to index adjustments, providing valuable insights for identifying trading opportunities[7][8][9]. Model Backtesting Results - **Index Component Adjustment Impact Model**: - **Net Buy Scale**: - Shenghong Technology: 48.65 billion CNY[10] - Dongshan Precision: 47.91 billion CNY[10] - Guangqi Technology: 34.87 billion CNY[10] - **Impact Coefficient**: - Shenghong Technology: 0.57[10] - Dongshan Precision: 1.31[10] - Guangqi Technology: 3.37[10] Quantitative Factors and Construction Methods Factor Name: Impact Coefficient - **Factor Construction Idea**: The impact coefficient measures the potential impact on a stock's price due to changes in its index weight, considering the net adjustment scale and the stock's average trading volume[9][10][11]. - **Detailed Construction Process**: - The impact coefficient is calculated using the formula: $$ \text{Impact Coefficient} = \frac{\text{Net Adjustment Scale}}{\text{Average Daily Trading Volume}} $$ where: - Net Adjustment Scale is the net buy or sell scale of the stock due to index adjustments - Average Daily Trading Volume is the stock's average trading volume over the past two weeks[9][10][11]. - **Factor Evaluation**: The impact coefficient provides a clear measure of the potential price impact on stocks due to index adjustments, helping investors identify stocks that may experience significant price movements[9][10][11]. Factor Backtesting Results - **Impact Coefficient**: - **Stocks with Impact Coefficient > 2**: - Tower Group: 8.69[12] - Jiangzhong Pharmaceutical: 8.44[12] - Shanxi Drum Power: 6.99[12] - **Stocks with Impact Coefficient < -2**: - Deep Expressway: -15.65[14] - Wanhe Electric: -13.30[14] - Tianyoude Wine: -10.52[14]

Economic Outlook - Domestic policy expectations are rising in December, and the probability of a Federal Reserve rate cut is increasing, which may lead to improved external liquidity and a potential market rebound[5] - Key focus areas include the upcoming Central Economic Work Conference and the potential for a Federal Reserve rate cut, which could lead to a valuation recovery in the technology sector[5] Investment Strategy - The report emphasizes three main investment themes: 1. Technology growth sectors, particularly AI hardware like optical modules and semiconductors, as well as energy storage and lithium battery sectors[5] 2. Market hot spots such as robotics and innovative pharmaceuticals, which are expected to rebound[5] 3. Chemical industries benefiting from "anti-involution" policies that optimize supply-demand dynamics[5] Recommended Stocks - Key recommended sectors include metals, chemicals, electric new energy, machinery, banking, automotive, pharmaceuticals, electronics, communications, and media[5] - Specific stock recommendations include: - Metals: Huaxi Nonferrous (华锡有色) with an expected EPS growth from 1.04 in 2024 to 2.17 in 2027[28] - Chemicals: Yara International (亚钾国际) with an expected EPS growth from 1.02 in 2024 to 5.87 in 2027[28] - Electric New Energy: Slin (斯菱股份) with an expected EPS growth from 1.73 in 2024 to 2.21 in 2027[28] - Machinery: Hengli Hydraulic (恒立液压) with an expected EPS growth from 1.87 in 2024 to 3.18 in 2027[28] - Banking: Bank of Communications (交通银行) with a projected PB of 0.58x in 2025[18] - Automotive: Top Group (拓普集团) with an expected EPS growth from 1.78 in 2024 to 2.38 in 2027[28] - Pharmaceuticals: Junshi Biosciences (君实生物) with a projected EPS turnaround by 2027[28] - Electronics: Dongshan Precision (东山精密) with an expected EPS growth from 0.64 in 2024 to 3.72 in 2027[28] - Communications: Zhongji Xuchuang (中际旭创) with projected net profits of 105.19 billion in 2025[26] - Media: Kaiying Network (恺英网络) with a projected EPS growth from 0.76 in 2024 to 1.47 in 2027[28] Risk Factors - Economic recovery may fall short of expectations due to slow employment growth, declining corporate revenues, and reduced market demand[30] - Significant changes in individual stock fundamentals could adversely affect performance[30]

Investment Rating - The report provides a recommendation for the technology sector, specifically highlighting key stocks for December 2025 [4][8]. Core Insights - The report identifies several companies within the technology sector that are expected to perform well, including Zhaoyi Innovation, Dongshan Precision, Fourth Paradigm, Tax Friend, Zhongji Xuchuang, Huafeng Technology, Kaiying Network, and Perfect World [12][14][15][16][19]. Summary by Category Electronics - **Zhaoyi Innovation**: The company is in a price increase cycle for storage products, with NOR Flash expanding its market share and SLC NAND Flash improving its process technology. The revenue is expected to continue growing as it captures high-end markets [14]. - **Dongshan Precision**: The company is entering a growth phase driven by AI technology, with increased demand for data servers. It has made strategic acquisitions to enhance its position in optical communication and PCB sectors [14]. Computer - **Fourth Paradigm**: The company is positioned to benefit from the increasing penetration of AI across various industries. Its core product, the AI platform, is experiencing rapid revenue growth, and it holds a leading market share in machine learning platforms in China [15]. - **Tax Friend**: As a leader in financial and tax information technology, the company is leveraging AI to enhance its service offerings, which is expected to drive significant growth in high-value business segments [16]. Communication - **Zhongji Xuchuang**: The company is a leader in optical modules, with strong R&D capabilities and a robust overseas production capacity. It is expected to see significant profit growth from 2025 to 2027 [16]. - **Huafeng Technology**: The company is well-positioned to benefit from the high demand for AI computing power, with expectations of profit growth in the coming years [17]. Media - **Kaiying Network**: The company has a rich product pipeline and is expected to see growth from new game launches and collaborations. Its investments in AI gaming applications are also anticipated to drive future revenue [19]. - **Perfect World**: The company is focusing on developing new games and hosting major esports events, which are expected to contribute to its growth trajectory [19].

Core Viewpoint - The announcement from China Securities Index Co., Ltd. regarding the periodic adjustment of sample stocks for various indices, including CSI 300, CSI 500, and CSI 1000, indicates a shift in market composition and sector representation, effective from December 12 and December 15, 2023 [1][21]. Group 1: Index Adjustments - The CSI 300 index will replace 11 sample stocks, including Dongshan Precision, Light Media, and Shenghong Technology [1][4]. - The CSI 500 index will replace 50 sample stocks, with new additions including Heertai, Huahong Semiconductor, and Dongfang Yuhong [4][5]. - The CSI 1000 index will replace 100 sample stocks, with new entries such as Shijia Photon, Yongding Co., and Hailanxin [6][12]. Group 2: Sector Representation - Post-adjustment, sectors such as information technology, communication services, and industrials will see an increase in sample stock numbers and weights, leading to a more balanced industry allocation in the A-series indices compared to traditional broad-based indices [13]. - The total market capitalization coverage for the CSI 300, CSI 500, and CSI 1000 indices is reported at 51.92%, 14.83%, and 13.22% respectively, indicating significant representation of large-cap stocks [13]. Group 3: Specific Stock Changes - The Shanghai Stock Exchange and China Securities Index Co., Ltd. will also adjust the sample stocks for the SSE 50, SSE 180, SSE 380, and Sci-Tech 50 indices, with specific stocks being added and removed [13][14]. - The SSE 50 index will replace 4 stocks, including Northern Rare Earth and Huadian New Energy [14]. - The SSE 180 index will replace 7 stocks, with new additions like Zhongtian Technology and Ruixin Micro [14].

Investment Rating - The report maintains an "Outperform" rating for the PCB industry [2]. Core Insights - The industry is entering a new AI-driven cycle, fundamentally changing demand structures. The construction of AI server clusters is leading to simultaneous upgrades in PCB demand and pricing. The expected market for wired communication PCBs will reach 206.9 billion RMB by 2027, with a CAGR of 20% over the next two years [4]. - High-end PCBs are expected to remain in tight supply until 2027, with major global manufacturers expanding production aggressively. The combined output of 13 leading PCB manufacturers is projected to reach 186 billion RMB by 2027, with a CAGR of 54% from 2025 to 2027 [4]. - The trend towards high-end PCB manufacturing is accelerating due to technological iterations and material upgrades. The industry is expected to see a three-pronged evolution in materials, processes, and architectures driven by AI [4]. - The demand surge and profit improvement in upstream materials present opportunities for domestic substitution. The price of copper-clad laminates has risen significantly, and domestic manufacturers are making notable progress in high-end materials [4]. - The PCB industry is experiencing a long-term trend of simultaneous growth in volume, price, and structure, driven by AI. The report recommends focusing on leading companies with high-end manufacturing capabilities and overseas delivery layouts [4]. Summary by Sections AI-Driven Growth - The AI cycle is expected to drive significant growth in PCB demand, particularly in AI servers, high-speed switches, and optical modules. The total market for wired communication PCBs is projected to reach 1,433 billion RMB by 2025 and 1,815 billion RMB by 2026 [19]. Production Capacity Expansion - Major PCB manufacturers are announcing aggressive expansion plans, with significant investments in new production facilities in Southeast Asia and domestic high-end capacity [15]. Technological Advancements - The report highlights the rapid adoption of mSAP technology in AI servers and switches, which is essential for meeting the demands of high-density signal transmission [4][21]. Market Dynamics - The report notes that the global PCB market is expected to face a supply-demand gap of nearly 20 billion RMB by 2026, although this gap is anticipated to narrow by 2027 [19]. Key Players - The report identifies leading companies such as Huada Technology, Jingwang Electronics, and Shenghong Technology as key players to watch in the PCB industry due to their high-end manufacturing capabilities and strategic expansion plans [4].

Core Points - Multiple important indices such as CSI 300, CSI 500, and others will adjust their sample stocks, effective after market close on December 12, 2025 [1][17] Group 1: CSI 300 Index Adjustments - The CSI 300 index will replace 11 sample stocks, with new additions including Huadian New Energy, Dongshan Precision, Guiding Compass, and Shenghong Technology [2][3] - The stocks being removed from the index include Yanfeng Automotive, Longyuan Power, TCL Zhonghuan, and others [3] Group 2: CSI 500 Index Adjustments - The CSI 500 index will replace 50 sample stocks, with new additions such as Heertai, Huahong Semiconductor, Dongfang Yuhong, and Trina Solar [5][6] - Stocks being removed include China Great Wall, Palin Bio, and others [6] Group 3: CSI 1000 Index Adjustments - The CSI 1000 index will replace 100 sample stocks, with new additions including Shijia Photon, Yongding Co., Wangfujing, and Dekeli [9][10] Group 4: CSI A50 Index Adjustments - The CSI A50 index will replace 4 sample stocks, with new additions including Huagong Technology, Guangqi Technology, Zhongji Xuchuang, and Shenghong Technology [14][15] Group 5: CSI A100 Index Adjustments - The CSI A100 index will replace 6 sample stocks, with new additions including Dongfang Fortune, Shenghong Technology, Zhongke Shuguang, and Sailisi [16] Group 6: CSI A500 Index Adjustments - The CSI A500 index will replace 20 sample stocks, with new additions including Guotai Haitong, Chip Original, and Guiding Compass [17] Group 7: SSE 50 Index Adjustments - The SSE 50 index will replace 4 sample stocks, with new additions including SAIC Motor, Northern Rare Earth, and Zhongke Shuguang [18] Group 8: SSE 180 Index Adjustments - The SSE 180 index will replace 7 sample stocks, with new additions including Guotou Investment, Zhongtian Technology, and Ruixin Micro [19][20] Group 9: SSE 380 Index Adjustments - The SSE 380 index will replace 38 sample stocks, with new additions including Guotou Investment, Jinfatech, and Zhonghai Oil Service [21][22] Group 10: Shenzhen Stock Exchange Adjustments - The Shenzhen Stock Exchange will adjust the sample stocks for indices such as the Shenzhen Component Index and ChiNext Index, effective after market close on December 15, 2025 [23] - The Shenzhen Component Index will replace 17 sample stocks, with new additions including Deep Housing A, Demingli, and Changxin Bochuang [24] - The ChiNext 50 Index will replace 5 sample stocks, with new additions including Changshan Pharmaceutical, Feiliwa, and others [26]

Core Viewpoint - The regular adjustment of index samples for various indices including CSI 300, CSI 500, CSI 1000, CSI A50, CSI A100, and CSI A500 will take effect after the market closes on December 12, as announced by China Securities Index Co., Ltd. on November 28 [1]. Group 1: CSI 300 Index Adjustments - The CSI 300 index will replace 11 samples, with new additions including Guolian Minsheng, Guangqi Technology, Ningbo Port, Huadian New Energy, Dongshan Precision, Zhongtian Technology, Zhinanceng, and Light Media. The removed samples include FAW Liberation, Oppein Home, Flat Glass, Longyuan Power, and Trina Solar [2][3]. - The number of samples in the information technology and communication services sectors will increase by 4 and 2 respectively, with weightings rising by 1.46% and 0.75% [5]. Group 2: CSI 500 Index Adjustments - The CSI 500 index will replace 50 samples, with new additions such as Dongfang Yuhong, Heertai, Huahong Company, Yantian Port, Dazhu CNC, Oppein Home, Zhongce Rubber, and Supor. Removed samples include China Great Wall, Semir Apparel, Zhongwen Media, and Wangfujing [5]. - The industrial sector will see an increase of 11 samples, with a weighting rise of 2.48% [6]. Group 3: CSI 1000 Index Adjustments - The CSI 1000 index will replace 100 samples, with new additions including Fenghua Hi-Tech, Shijia Photon, Guoji Precision, Yongding Co., Fuling Pickled Cabbage, Galaxy Magnet, and Hanyu Pharmaceutical [6]. - The number of samples in the communication services and industrial sectors will increase by 6 and 2 respectively, with weightings rising by 0.44% and 0.37% [6]. Group 4: Other Indices Adjustments - The CSI A50 index will replace 4 samples, with new additions including Zhongji Xuchuang, Huagong Technology, Guangqi Technology, and Shenghong Technology, while removing ZTE, Sanhuan Group, Shanghai Airport, and Hualu Hengsheng [7]. - The CSI A100 index will replace 6 samples, with new additions such as Dongfang Fortune, Guangqi Technology, and Zhongke Shuguang, while removing Shanghai Airport, Unisplendour, and CITIC Securities [8]. - The CSI A500 index will replace 20 samples, with new additions including Zhongtian Technology, Genesis, Borui Pharmaceutical, Guotai Haitong, and Chip Origin [9].

Core Viewpoint - The China Securities Index Co., Ltd. has announced adjustments to several indices, including the CSI 300, CSI 500, CSI 1000, CSI A50, CSI A100, and CSI A500, effective after the market closes on December 12, 2025. The adjustments involve the replacement of multiple constituent stocks in these indices [1]. Group 1: Index Adjustments - The CSI 300 index will replace 11 constituent stocks, while the CSI 500 will replace 50 stocks, the CSI 1000 will replace 100 stocks, the CSI A50 will replace 4 stocks, the CSI A100 will replace 6 stocks, and the CSI A500 will replace 20 stocks [1]. - Notable additions to the CSI 300 index include Dongshan Precision (002384.SZ), Guangqi Technology (002625.SZ), and Light Media (300251.SZ) [1]. - Stocks removed from the CSI 300 index include FAW Jiefang (000800.SZ), Longyuan Power (001289.SZ), and Nasda (002180.SZ) [1]. Group 2: Detailed Replacement Lists - The detailed replacement lists for the CSI 500, CSI 1000, CSI A50, CSI A100, and CSI A500 indices include various companies, with specific stock codes and names provided in the respective tables [2][3][4][5][9][10][11]. - For instance, the CSI A50 index will see the removal of ZTE Corporation (000063) and the addition of Huagong Technology (000988) and Guangqi Technology (002625) [9][10]. - The CSI A100 index will replace stocks such as Ziguang Guowei (002049) with Guangqi Technology (002625) and Shanghai Airport (600009) with Shenghong Technology (300476) [10]. Group 3: Implications for Investors - The adjustments in the indices may influence investor sentiment and trading strategies, as the inclusion or exclusion of stocks can affect their liquidity and market perception [1]. - Investors may need to reassess their portfolios based on these changes, particularly focusing on the newly added stocks that may experience increased attention and trading volume [1].

证券日报网讯11月28日，东山精密（002384）在互动平台回答投资者提问时表示，截至2025年11月20 日，公司股东总户数101671户。 ...