47年前的1978年12月18日，中国发生了具有深远历史影响的大事。 我们结束了一个时代的斗争，从那一天开始，我们定调把中心转移到经济建设上来，实行改开的历史性决策，从那一天开始，中国，开启了改开和社会主 义现代化的伟大征程。 47年后的12月18日，我们又将开始一次历史性尝试：海南封关！ 很多人搞不懂封关是啥意思，老赵简单概括一下。 封关，封的是海关，而不是海岛。海南将变成一个海关监管的特殊区域，而不是地理空间上的封关。 央视用了三句话来概括这个运作模式： "一线"放开、"二线"管住、岛内自由。 "'一线'放开"，是打开面朝世界的大门。 未来，海南与境外之间的货物、资金、人员往来，将享有前所未有的自由。 绝大多数进口商品零关税，符合条件的货物甚至可以径予放行，无需在口岸久等。 以罗牛山为例，进口大豆等饲料原料可节省13%-17%的关税成本，每年预计节省约1.1亿元，大幅降低企业成本。 而"二线"，是海南和内地之间的管理线，这里要"管住"，主要是管住货物，防止零关税商品无序流入内地市场。 至于"人"，你我往来海南与内地，出差、旅游、生活，一切照旧，不需要任何额外证件。 海南全岛有3.4万平方公里，是全球面积最 ...

Group 1 - The core point of the article is the significant adjustment of sample stocks in major A-share indices, which is expected to lead to substantial passive fund reallocations and potentially guide active fund investments towards "new quality productivity" sectors [1][11][12]. Group 2 - The Shenzhen Stock Exchange announced that as of December 15, the Shenzhen Component Index replaced 17 stocks, the ChiNext Index replaced 8 stocks, the Shenzhen 100 Index replaced 7 stocks, and the ChiNext 50 Index replaced 5 stocks [2][3][4]. - The adjustments reflect a shift towards industries related to "new quality productivity," with traditional sectors and low-growth companies being removed from the indices [5][15]. Group 3 - The adjusted indices show a significant increase in the weight of strategic emerging industries, with the ChiNext Index's weight reaching 93%, the Shenzhen 100 Index at 81%, and the ChiNext 50 Index at 98% [5][19]. - The new stocks added generally have market capitalizations between 5 billion to 80 billion yuan and exhibit strong growth characteristics, with many showing revenue and net profit compound annual growth rates exceeding 20% [5][15]. Group 4 - The total scale of index funds tracking the Shenzhen Component Index, ChiNext Index, Shenzhen 100, and ChiNext 50 exceeds 250.728 billion yuan, indicating a large amount of passive funds that will be affected by these adjustments [7][18]. - The adjustments are expected to create a divergence in stock performance, with newly added stocks likely to see increased trading activity due to passive fund inflows, while removed stocks may face selling pressure [7][18]. Group 5 - Nearly 60% of the companies in the adjusted Shenzhen Component Index have implemented quality improvement and stock repurchase plans, with the total dividends from Shenzhen 100 companies this year amounting to 302.2 billion yuan, accounting for 55% of the total dividends in the Shenzhen market [19].

年末的此轮指数样本调整，几乎囊括了A股市场的大部分核心指数。 11月末，沪深交易所、中证指数有限公司（下称"中证指数"）、深圳证券信息有限公司（下称"深证信息"）等集中公告， 根据指数规则，对A股多个核心指数进行样本股定期调整。 此轮调整，几乎囊括了A股市场的核心指数，具体包括上证50、上证180、上证380、科创50、沪深300、中证500、中证 1000、中证A50、中证A100、中证A500以及深证成指、创业板指、深证100、创业板50等。 其中，上交所与中证指数的调整已于2025年12月12日收市后生效，而深交所及深证信息的调整则于12月15日正式实施。 业内人士认为，A股指数的定期调整机制，是保持指数生命力的重要举措，其核心是为了让指数能够更精准地反映市场趋 势和经济发展方向。 指数们的"新陈代谢" 据了解，指数调样分为定期调整和临时调整，其中，定期调整的周期包括季度、半年度、年度等三类。其中，最常见的是 半年度调整，一般在每年的6月和12月进行，生效日通常是6月、12月第二个星期五的下一交易日。 部分科技创新领域的指数，由于行业更新换代较快，所以采用季度调整的形式。如科创50指数样本年内分别于3月 ...

证券研究报告 | 2025年12月15日 传媒互联网周报 优于大市 GPT-5.2 发布，持续看好游戏与 AI 应用机会 行业上涨 0.42%，跑输沪深 300，跑输创业板指。本周（12.8-12.14）传媒 行业上涨 0.42%，跑输沪深 300（0.76%），跑输创业板指（4.14%）。其中 涨幅靠前的分别为博纳影业、广西广电、北京文化、三人行等，跌幅靠前的 分别为 ST 返利、华谊兄弟、祥源文旅、联建光电等。横向比较来看，本周 传媒板块在所有板块中涨跌幅排名第 13 位。 OpenAI 发布 GPT-5.2，谷歌 AI 浏览器可一件将标签页变成 APP。1）近日， OpenAI 把最新模型 GPT-5.2 推上生产环境，山姆·阿尔特曼称"使用 GPT-5.2 的职场人，每周至少拿回 10 小时。"；2）Runway 推出其首个通用世界模型 GWM-1，宣称能通过逐帧像素预测，构建一个理解物理规律与时间演化的动 态仿真环境；3）12 月 11 日，谷歌通过官方博客放出 AI 实验项目"Disco"， 首发功能 GenTabs 可把用户打开的一堆标签页实时生成为定制化 Web 应用。 | 证券分析师：张衡 ...

Investment Rating - The report maintains an "Outperform" rating for the media industry [3] Core Insights - The media sector outperformed the market in November, with the Shenwan Media Index rising by 1.69%, surpassing the CSI 300 Index by 4.14 percentage points, ranking 7th among 31 industries [4][20] - The number of game approvals reached a new high, with 178 domestic games and 6 imported games approved in November, contributing to a total of 1,625 game approvals from January to November, a year-on-year increase of 26.8% [4][28] - The gaming market revenue in October was 31.4 billion yuan, a year-on-year growth of 7.8%, driven by strong product cycles from leading companies [4][32] Summary by Sections Market and Industry Review - The media sector's performance in November was strong, with a 1.69% increase in the Shenwan Media Index, outperforming the CSI 300 Index [4][20] - The current TTM-PE for the Shenwan Media Index is 42.6x, positioned at the 82.2% percentile over the past five years [20][26] Gaming - The number of game approvals in November was the highest in three years, with a total of 178 domestic and 6 imported games approved [28] - The gaming market revenue in October was 31.4 billion yuan, with mobile gaming revenue at 22.6 billion yuan, reflecting a year-on-year growth of 2.4% [32] - The overseas revenue for Chinese self-developed games reached 1.799 billion USD in October, marking an 11.9% year-on-year increase [41] Film and Television - The total box office in November reached 3.553 billion yuan, a year-on-year increase of 89.3%, primarily due to the success of "Zootopia 2" [49] - The top five films in November included "Zootopia 2," which grossed over 2.2 billion yuan within nine days of release [60] - The drama market saw high viewership, with "The Tang Dynasty Mysteries" leading with 1.5 billion views [67] AI Applications - The report highlights advancements in AI video models, including the launch of the O1 video model by Keling AI, which allows users to generate videos from text prompts [79] - PixVerse V5.5 was released, enabling the creation of multi-angle narrative videos [84] - Google's Gemini 3 Pro and Nano Banana Pro were launched, showcasing significant improvements in AI capabilities [91] Investment Recommendations - The report suggests focusing on the gaming sector's new product cycles and AI applications, recommending companies such as Giant Network, G-bits, and K-Game Network [96] - The December investment portfolio includes Giant Network, K-Game Network, Bilibili, and HuiLiang Technology [7]

2025.12.15 本文字数：1158，阅读时长大约2分钟 作者 |第一财经 安卓 深圳证券交易所及深圳证券信息有限公司此前曾发布公告称，根据指数编制规则，将对深证成指、创业 板指、深证100、创业板50等深市指数实施样本定期调整。 深证100更换7只样本股，天山股份（000877.SZ）、山西焦煤（000983.SZ）等被调出；调入了主板公司 4家，创业板公司3家，如藏格矿业（000408.SZ）、胜宏科技（300476.SZ）、安克创新（300866.SZ） 等； 创业板50更换了5只样本股，调出了特锐德（300001.SZ）、芒果超媒（300413.SZ）等；调入长芯博创 （300548.SZ）、协创数据（300857.SZ）等。 整体来看，本次调整体现了推动新质生产力发展、筑牢实体经济基本盘以及引领长期价值投资的核心理 念。 在推动新质生产力发展方面，本次调整后，创业板指战略性新兴产业权重占比93%，新一期样本公司前 三季度研发费用同比增速为13%，研发费用占营业收入比重为5%，其中30家公司研发强度超10%。深证 100新质蓝筹属性更加突出，战略性新兴产业权重提升至81%，先进制造、数字经济、绿色 ...

Core Viewpoint - The article discusses the recent sample adjustments to various Shenzhen stock indices, highlighting the focus on promoting new productive forces, strengthening the real economy, and guiding long-term value investment [3][5]. Group 1: Index Adjustments - The Shenzhen Component Index has replaced 17 sample stocks, removing 10 from the main board and 7 from the ChiNext board, including companies like China National Pharmaceutical (000028.SZ) and Tibet Mining (000762.SZ) [4]. - The ChiNext Index has replaced 8 sample stocks, with companies like BeWater (300070.SZ) and Yihua Record (300212.SZ) being removed, while new additions include Dazhu CNC (301200.SZ) and Changshan Pharmaceutical (300255.SZ) [4]. - The Shenzhen 100 Index has replaced 7 sample stocks, with Tianshan Shares (000877.SZ) and Shanxi Coking Coal (000983.SZ) being removed, and new companies added from both the main board and ChiNext [4]. - The ChiNext 50 Index has replaced 5 sample stocks, removing companies like Teradyne (300001.SZ) and Mango Super Media (300413.SZ), while adding Longxin Bochuang (300548.SZ) and Xiechuang Data (300857.SZ) [5]. Group 2: Strategic Focus - The adjustments reflect a commitment to developing new productive forces, with the ChiNext Index's strategic emerging industry weight reaching 93%, and R&D expenses for the new sample companies growing by 13% year-on-year [5]. - The Shenzhen 100 Index has enhanced its new quality blue-chip attributes, with strategic emerging industries now accounting for 81% of its weight, and key sectors like advanced manufacturing and digital economy making up 79% [5]. - The ChiNext 50 Index has a strategic emerging industry weight of 98%, with new generation information technology industries, including AI and chips, comprising 45% [5]. Group 3: Economic Fundamentals - The Shenzhen Component Index now has a manufacturing company weight of 76%, the highest among Chinese capital market indices, with over 30% being single champion enterprises in manufacturing [6]. - The ChiNext Index shows strong growth, with new sample companies reporting a 16% increase in revenue and a 24% increase in net profit year-on-year, particularly in high-end equipment manufacturing and new energy sectors [6]. - Over 80% of the Shenzhen 100 sample companies have expanded their business internationally, with overseas revenue showing a compound annual growth rate of 17% over the past three years [6]. Group 4: Investor Returns - Nearly 60% of the new sample companies in the Shenzhen Component Index have implemented "quality return dual enhancement" action plans, with over 30% engaging in stock repurchase programs [6]. - In the ChiNext Index, 64 companies have an ESG rating of A or above, representing 79% of the index [6]. - The Shenzhen 100 sample companies have distributed a total of 302.2 billion yuan in dividends this year, accounting for 55% of the total dividends in the Shenzhen market, with a rolling net asset return rate of 12% over the past year [6].

本次调整于2025年12月15日正式实施。 深圳证券交易所及深圳证券信息有限公司此前曾发布公告称，根据指数编制规则，将对深证成指、创业 板指、深证100、创业板50等深市指数实施样本定期调整。 本次调整，于今日起正式实施。 具体来看，深证成指更换了17只样本股，调出了10家主板公司和7家创业板公司，如国药一致 （000028.SZ）、中国天楹（000035.SZ）、海德股份（000567.SZ）、西藏矿业（000762.SZ）等；调入 主板公司7家，创业板公司10家，如深深房Ａ（000029.SZ）、德明利（001309.SZ）、四方精创 （300468.SZ）、长芯博创（300548.SZ）等。 创业板指更换8只样本股，调出了碧水源（300070.SZ）、易华录（300212.SZ）等；调入大族数控 （301200.SZ）、常山药业（300255.SZ）等。 深证100更换7只样本股，天山股份（000877.SZ）、山西焦煤（000983.SZ）等被调出；调入了主板公司 4家，创业板公司3家，如藏格矿业（000408.SZ）、胜宏科技（300476.SZ）、安克创新（300866.SZ） 等； 创业板50更 ...

Core Insights - The 2025 Hunan Province Internet Enterprise Comprehensive Strength Index was released, highlighting the top 30 internet companies, top 10 growth-oriented companies, and top 10 innovative companies in Hunan [1][3] Group 1: Comprehensive Strength of Internet Companies - The top 30 internet companies in Hunan generated a total internet business revenue of 29.87 billion yuan in 2024, with over half of these companies achieving positive revenue growth, and 7 companies experiencing revenue growth rates exceeding 19% [3] - The majority of the top 30 companies are located in Changsha, with a diverse range of business types, including 7 companies in software services, 5 in entertainment, 5 in online marketing, and others in public services, computing infrastructure, and e-commerce [3] - The overall operating profit of the top 30 companies saw a slight increase of 4.5% year-on-year, while R&D intensity rose to 9.8% [3] Group 2: Growth and Innovation in Internet Companies - The top 10 growth-oriented companies in Hunan experienced an average internet business revenue growth rate of 67.1% in 2024, which is an increase of 13 percentage points from the previous year, with average R&D expenses growing by 20.5% [4] - The average R&D intensity for the top 10 innovative companies reached 12.2%, with an average of 43.3% of their workforce dedicated to R&D, and they hold an average of 5 valid invention patents and 63 software copyrights [4] Group 3: Ongoing Research and Development - The research on the comprehensive strength index of Hunan's internet enterprises has been conducted for seven consecutive years, serving as a significant indicator of the strength of Hunan's internet industry and insights into industry trends [5] - The Hunan Internet Association plans to continue enhancing the research on internet enterprise strength and to foster high-quality development in the industry [5]

Core Viewpoint - Mango Excellent Media announced the convening of its 30th meeting of the fourth board of directors on December 12, 2025, to review the proposal for the re-election of an independent director and related committee members [2] Group 1 - The board nominated Mr. Zhao Longkai as the candidate for independent director, with a term starting from the date of approval by the shareholders' meeting until the end of the fourth board's term [2] - Upon approval by the shareholders' meeting, Mr. Zhao Longkai will replace Mr. Ding Wenhua as the chairman of the board's nomination committee, as well as a member of the strategy committee, audit committee, and compensation and assessment committee [2]