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]

- The report introduces a **comprehensive impact coefficient model** to measure the impact of multiple index adjustments on individual stocks. The model is defined as follows: $effect\_total_{s}=\sum_{i=1}^{n}\frac{wt\_chg_{s_{i}}\times fund\_size_{i}}{amount\_avg_{s_{i}}20}$ where $effect\_total_{s}$ represents the comprehensive impact coefficient of stock $s$ across sample indices, $wt\_chg_{s_{i}}$ is the estimated weight change of stock $s$ in index $i$, $fund\_size_{i}$ is the tracking scale of index $i$, and $amount\_avg_{s_{i}}20$ is the average trading volume of stock $s$ over the past 20 days[11] - The report highlights the **impact of index sample stock adjustments** on individual stocks, focusing on the December 2025 periodic adjustments of major indices such as CSI 300, CSI A500, and SSE 50. The analysis includes the calculation of the comprehensive impact coefficient for stocks being added or removed from indices, as well as the potential passive trading impact due to weight adjustments[13][14][16] - The report identifies **stocks with significant positive and negative impact coefficients** due to index adjustments. For example, stocks like Tower Group, Jiangzhong Pharmaceutical, and Zhengbang Technology have positive impact coefficients above 2, while stocks like Deep Expressway and Wanhe Electric have significant negative impact coefficients[16][17][18] - The report evaluates the **impact of weight cap adjustments** for stocks like Zhongji Xuchuang and Xinyisheng in thematic indices such as CS Artificial Intelligence and Communication Equipment. Due to exceeding the weight cap, these stocks are expected to experience passive outflows of approximately 6.3 billion yuan and 2.7 billion yuan, respectively. However, the report concludes that the negative impact is limited due to sufficient liquidity and potential inflows from other indices[5][19][20]

【环球网财经综合报道】11月28日，中证指数有限公司公布沪深300、中证500、中证1000、中证A50、中证A100、中证 A500等指数的样本定期调整方案。本次调整为指数样本的例行调整，将于12月12日收市后正式生效。 此次调整进一步提升了指数的科创与创新属性。调整后，沪深300、中证500、中证1000指数中科创板及创业板样本合计数 量分别增加3只、6只、9只，合计权重分别达到21.26%、28.07%、36.16%。此外，中证A50指数更换4只样本，中际旭创、 华工科技、光启技术、胜宏科技调入，中兴通讯、三环集团、上海机场、华鲁恒升调出；中证A100指数更换6只样本，东 方财富、光启技术、中科曙光等调入，上海机场、紫光国微、中信证券等调出；中证A500指数更换20只样本，中天科技、 创世纪、博瑞医药、国泰海通、芯原股份等获调入。 根据方案，沪深300指数此次更换11只样本，国联民生、光启技术、宁波港、华电新能、东山精密、中天科技、指南针、光 线传媒等获调入，一汽解放、欧派家居、福莱特、龙源电力、天合光能等被调出。调整完成后，沪深300指数中信息技术、 通信服务行业样本数量分别增加4只、2只，权重分别上 ...

Core Viewpoint - The China Securities Index Co., Ltd. announced the regular adjustment plan for various indices, including the CSI 300, CSI 500, CSI 1000, CSI A50, CSI A100, and CSI A500, which will take effect after the market closes on December 12 [1]. Group 1: CSI 300 Index Adjustments - The CSI 300 index will replace 11 constituent stocks, with new additions including Guolian Minsheng, Guangqi Technology, Ningbo Port, Huadian New Energy, Dongshan Precision, Zhongtian Technology, Zhinancai, and Light Media. Stocks removed from the index include FAW Jiefang, Oppein Home, Fuyao Glass, Longyuan Power, and Trina Solar [2][3]. Group 2: CSI 500 Index Adjustments - The CSI 500 index will replace 50 constituent stocks, with new additions such as Dongfang Yuhong, Heertai, Huahong Semiconductor, Yantian Port, Dazhu CNC, Oppein Home, Zhongce Rubber, and Supor. Stocks removed include China Great Wall, Semir Fashion, Zhongwen Media, and Wangfujing [5]. Group 3: CSI 1000 Index Adjustments - The CSI 1000 index will replace 100 constituent stocks, with new additions including Fenghua Hi-Tech, Shijia Photon, Guoji Precision, Yongding Co., Fuling Pickled Vegetable, Galaxy Magnet, and Hanyu Pharmaceutical [5]. Group 4: Sector Weight Changes - In the CSI 300 index, the number of samples in the information technology and communication services sectors increased by 4 and 2, respectively, with weight increases of 1.46% and 0.75% [5]. - In the CSI 500 index, the industrial sector saw an increase of 11 samples, with a weight increase of 2.48% [5]. - In the CSI 1000 index, the communication services and industrial sectors saw increases of 6 and 2 samples, with weight increases of 0.44% and 0.37% [5]. Group 5: CSI A50 and A100 Index Adjustments - The CSI A50 index will replace 4 constituent stocks, with new additions including Zhongji Xuchuang, Huagong Technology, Guangqi Technology, and Shenghong Technology. Stocks removed include ZTE Corporation, Sanhuan Group, Shanghai Airport, and Hualu Hengsheng [5]. - The CSI A100 index will replace 6 constituent stocks, with new additions including Dongfang Fortune, Guangqi Technology, and Zhongke Shuguang. Stocks removed include Shanghai Airport, Unisplendour, and Citic Securities [5][6]. Group 6: CSI A500 Index Adjustments - The CSI A500 index will replace 20 constituent stocks, with new additions including Zhongtian Technology, Genesis, Borui Pharmaceutical, Guotai Haitong, and Chipone Technology [8].

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].

南方财经11月27日电，光启技术(002625.SZ)于2025年11月27日披露2025年员工持股计划草案，该计划 拟筹集资金总额不超过3896.57万元，通过非交易过户方式受让公司回购的A股普通股，总量不超过136 万股，受让价格为28.65元/股。参与对象包括公司董事、高级管理人员及核心骨干员工等，总人数不超 过75人。 本次员工持股计划设定了明确的三期解锁安排与公司层面业绩考核目标。持股计划存续期不超过48个 月，标的股票分三期解锁，解锁时点分别为过户完成后的12个月、24个月和36个月，解锁比例依次为 30%、30%和40%，解锁条件与2026年至2028年三个会计年度的营业收入增长率挂钩，以2025年营业收 入为基数。各年度考核目标分别为：2026年营业收入增长率目标值（Am）为100%，触发值（An）为 80%；2027年目标值为157.5%，触发值为125%；2028年目标值为215%，触发值为175%。 ...

本员工持股计划的存续期不超过48个月，自本员工持股计划草案经公司股东会审议通过且公司公告标的 股票过户至本员工持股计划名下之日起算。 光启技术（002625）(002625.SZ)披露2025年员工持股计划(草案)，参加本员工持股计划的员工总人数不 超过75人，其中董事(不含独立董事)、高级管理人员为3人。员工持股计划拟持有的标的股票数量不超 过136万股，购买公司回购股份的价格为28.65元/股。 ...

Group 1 - The company, Guangqi Technology (002625.SZ), has disclosed a draft for its 2025 employee stock ownership plan, which will involve a maximum of 75 employees participating, including 3 directors (excluding independent directors) and senior management [1] - The employee stock ownership plan aims to hold a maximum of 1.36 million shares, with the repurchase price set at 28.65 yuan per share [1] - The duration of the employee stock ownership plan will not exceed 48 months, starting from the date the plan is approved by the company's shareholders and the transfer of shares to the plan's name [1]

光启技术股份有限公司 2025年员工持股计划管理办法 第一章 总则 （二）自愿参与原则 公司实施本员工持股计划遵循公司自主决定，员工自愿参加的原则，公司 不以摊派、强行分配等方式强制员工参加本员工持股计划。 （三）风险自担原则 本员工持股计划参与人盈亏自负，风险自担，与其他投资者权益平等。 第三条 本员工持股计划履行的程序 （一）董事会及其下设的薪酬与考核委员会负责拟定《光启技术股份有限 公司2025年员工持股计划（草案）》（以下简称"本员工持股计划草案 "）及 摘要。 第一条 为规范光启技术股份有限公司（以下简称"光启技术"或"公司"） 2025年员工持股计划（以下简称"本员工持股计划"）的实施，根据《中华人民 共和国公司法》（以下简称"《公司法》"）、《中华人民共和国证券法》（以下 简称"《证券法》"）、《关于上市公司实施员工持股计划试点的指导意见》（以下 简称"《指导意见》"）、《深圳证券交易所上市公司自律监管指引第1号——规 范运作》（以下简称"《规范运作》"）等有关法律法规、规范性文件和《光启 技术股份有限公司章程》（以下简称"《公司章程》"）之规定，特制定《光启 技术股份有限公司2025年员工持股 ...