- The GAN_GRU factor is based on the GAN_GRU model, which utilizes Generative Adversarial Networks (GAN) for processing volume-price time series features and then employs the GRU model for time series feature encoding to derive the stock selection factor[4][13] - The GAN_GRU model includes two GRU layers (GRU(128, 128)) followed by an MLP (256, 64, 64), with the final output being the predicted return (pRet) used as the stock selection factor[22] - The GAN model consists of a generator and a discriminator. The generator aims to generate data that appears real, while the discriminator aims to distinguish between real and generated data. The generator's loss function is $L_{G} = -\mathbb{E}_{z\sim P_{z}(z)}[\log(D(G(z)))]$ and the discriminator's loss function is $L_{D} = -\mathbb{E}_{x\sim P_{d a t a}(x)}[\log D(x)] - \mathbb{E}_{z\sim P_{z}(z)}[\log(1-D(G(z)))]$[23][24][27] - The GAN_GRU model's training process involves alternating between training the generator and the discriminator until convergence[29][30] - The GAN_GRU factor's performance from February 2019 to February 2026 shows an IC mean of 0.1096, an annualized excess return of 22.32%, and an ICIR (non-annualized) of 0.87[41][42] - The latest IC value as of February 25, 2026, is -0.0105, with a one-year IC mean of 0.0517[41][42] - The top five industries for the GAN_GRU factor in February 2026, based on IC, are Electric Utilities, Retail, Real Estate, Construction, and Basic Chemicals, with IC values of 0.1257, 0.1196, 0.1151, 0.1130, and 0.1063, respectively[44] - The top five industries for the GAN_GRU factor over the past year, based on IC mean, are Steel, Computers, Media, Retail, and Food & Beverage, with IC means of 0.1404, 0.1175, 0.1132, 0.1014, and 0.0989, respectively[44] - The top five industries for the GAN_GRU factor's long positions in February 2026, based on excess returns, are Oil & Petrochemicals, Communications, Electronics, Non-ferrous Metals, and Computers, with excess returns of 7.91%, 3.11%, 3.06%, 2.78%, and 2.78%, respectively[45] - The top five industries for the GAN_GRU factor's long positions over the past year, based on average monthly excess returns, are Real Estate, Retail, Automobiles, Construction, and Consumer Services, with excess returns of 3.83%, 2.04%, 1.93%, 1.50%, and 1.49%, respectively[46] **Performance Metrics of GAN_GRU Factor:** - IC: 0.1096[41][42] - ICIR (non-annualized): 0.87[41][42] - Turnover Rate: 0.82X[41][42] - Recent IC: -0.0105[41][42] - One-year IC: 0.0517[41][42] - Annualized Return: 38.13%[41][42] - Annualized Volatility: 23.18%[41][42] - Information Ratio (IR): 1.64[41][42] - Maximum Drawdown: 27.29%[41][42] - Annualized Excess Return: 22.32%[41][42]

Core Insights - The low-altitude economy is gaining traction, with the Guangdong Provincial High-Quality Development Conference emphasizing the need to facilitate technological innovation and market exploration to allow the low-altitude economy to thrive [1] Group 1: Market Performance - The General Aviation ETF Huaxia (159230) rose by 0.88%, marking its third consecutive increase, with key holdings such as Yingliu Co. hitting the daily limit, and other stocks like Guanglian Aviation and Guodian Measurement increasing by 5.64% and 3.18% respectively [1] - The National General Aviation Industry Index (980076) has its top ten weighted stocks, including Wanfeng Aowei, Hongdu Aviation, and Tianyin Electromechanical, which collectively account for 34.47% of the index [1] Group 2: Infrastructure Development - The Jiulong Lake Flight Camp, covering approximately 20,000 square meters, is the first B2-class flight camp developed by Huitian, featuring two vertical take-off and landing points and a complete flight service support system [1]

Core Viewpoint - The A-share market continues to rise, with the commercial aerospace sector showing significant gains, particularly the Aviation ETF Huatai (159257), which has achieved a four-day consecutive increase [1]. Group 1: Market Performance - The A-share market has seen over 3,700 stocks closing in the green, indicating a strong market sentiment [1]. - The Aviation ETF Huatai (159257) closed at 1.228, up 0.82% from the previous day, marking a notable performance in the commercial aerospace sector [1]. Group 2: Commercial Aerospace Developments - Blue Arrow Aerospace announced plans for the second quarter recovery test of the reusable rocket Zhuque-3, aiming for its first recovery flight by the end of this year [3]. - The urgency to deploy satellites is emphasized due to the competitive landscape, with the U.S. leading in satellite launches and China planning significant satellite constellation projects [3][4]. Group 3: Industry Trends - The global demand for space computing is rising, with many tech companies announcing plans for space computing deployments by the end of 2025, which could significantly enhance satellite capabilities [4]. - The commercial aerospace sector is entering a new development phase, driven by policy support and technological advancements, with a notable increase in launch activities expected in 2025 [5]. Group 4: ETF Composition and Industry Weighting - The Aviation ETF Huatai (159257) has a significant focus on the defense and military industry, which constitutes 61.2% of its index, along with notable weights in the computer and automotive sectors [10]. - The low-altitude economy concept stocks account for 52% of the ETF's index, indicating a strong alignment with emerging market trends [8].

Group 1 - The General Aviation ETF (159378) closed down 0.62% at 1.448 yuan with a trading volume of 20.13 million yuan [1] - Key holdings in the General Aviation ETF include Wan Feng Ao Wei down 0.45%, Aerospace Rainbow down 1.26%, and China Satellite down 2.37% [1] - The ETF's performance benchmark is the National General Aviation Industry Index return rate, managed by Yongying Fund Management Company [1] Group 2 - Since its inception on January 2, 2025, the General Aviation ETF has returned 45.48%, while its return over the past month is -5.56% [1]

Core Viewpoint - The company, AVIC Helicopter Company Limited, has announced the redemption of part of its idle raised funds used for cash management, ensuring compliance with its investment plans and board authorizations [1][2]. Group 1: Cash Management Approval - The company's board approved the use of idle raised funds for cash management, with a maximum limit of RMB 2.5 billion, ensuring it does not affect the investment plans [1]. - The investment products have a maximum duration of 12 months, and the authorization for cash management is valid for 12 months from the board's approval date [1]. Group 2: Redemption Details - As of the announcement date, all products related to the cash management have been fully redeemed, with both principal and interest returned to the designated fund account [1]. - The remaining amount of idle raised funds under cash management that has not yet matured is RMB 2.1 billion, and the highest daily balance and usage period have not exceeded the board's authorized limits [1].

证券代码：600038 证券简称：中直股份 公告编号：2026-002 中航直升机股份有限公司 关于使用部分闲置募集资金进行现金管理到期赎回的公告 本公司董事会及全体董事保证本公告内容不存在任何虚假记载、误导性陈述或者重大遗 漏，并对其内容的真实性、准确性和完整性承担法律责任。 中航直升机股份有限公司（以下简称"公司"或"中直股份"）于2025年6 月6日分别召开第九届董事会第九次会议、第九届监事会第八次会议，审议通过 了《关于公司继续使用暂时闲置募集资金进行现金管理的议案》，同意在确保不 影响募集资金投资计划的前提下，对最高额度不超过人民币25亿元（包含本数） 的闲置募集资金进行现金管理，投资产品的期限不超过12个月，现金管理授权的 有效期自公司董事会审议通过之日起12个月内有效，在上述期限及授权额度范围 内，资金可以滚动使用，具体内容详见公司于2025年6月7日披露的《关于继续使 用暂时闲置募集资金进行现金管理的公告》（公告编号：2025-031）。 截至本公告披露日，以上产品已全部赎回，并已将本金及收到的利息收入归 还至募集资金专户。除上述情况外，公司使用暂时闲置募集资金进行现金管理尚 未到期的金额为人 ...

Group 1 - The company has established a special account for raised funds and signed a tripartite supervision agreement to ensure proper management and protection of investor rights [3][5][6] - The company issued 88,287,227 shares at a price of 33.98 yuan per share, raising a total of approximately 2.999 billion yuan, with a net amount of approximately 2.968 billion yuan after deducting issuance costs [2][4] - The tripartite supervision agreement involves the company, its wholly-owned subsidiary, and independent financial advisors, ensuring compliance with relevant regulations and oversight of fund usage [6][8][9] Group 2 - The agreement stipulates that the raised funds will be managed in a dedicated account, with specific provisions for the storage and usage of funds, including the prohibition of pledging the funds [6][7] - The independent financial advisors have the authority to supervise the fund usage and can conduct on-site investigations and inquiries [7][8] - The agreement is effective upon signing and will remain in force until all funds are fully utilized and the account is legally closed [10]

证券代码：600038 证券简称：中直股份 公告编号：2026-001 中航直升机股份有限公司 关于开立募集资金专户并签订募集资金专户存储三方监管协议的公告 本公司董事会及全体董事保证本公告内容不存在任何虚假记载、误导性陈述或者重大遗 漏，并对其内容的真实性、准确性和完整性承担法律责任。 一、募集资金基本情况 根据中国证券监督管理委员会《关于同意中航直升机股份有限公司发行股份 购买资产并募集配套资金注册的批复》（证监许可〔2024〕173号），中航直升 机股份有限公司（以下简称"公司"）向特定对象发行每股面值人民币1.00元的 人民币普通股（A股）88,287,227股（以下简称"本次发行"），本次发行价格为 33.98元/股，共募集资金总额为人民币2,999,999,973.46元，扣除发行费用人民币 31,734,231.34元（不含增值税，包括承销费用及其他发行费用）后，实际募集资 金净额为人民币2,968,265,742.12元。上述募集资金已于2024年7月17日汇入公司 开立的募集资金专用账户，由大信会计师事务所（特殊普通合伙）审验，并出具 了《中航直升机股份有限公司验资报告》（大信验字[2024 ...

Core Viewpoint - The aviation travel industry in China is transitioning from a high-end choice to a common daily travel method due to the steady increase in national income, leading to a surge in demand for airline routes and capacity, particularly in the regional and low-cost aviation sectors, which is expected to drive the civil aircraft manufacturing market to reach a scale of 223.858 billion yuan by 2025, with a year-on-year growth of 16.2% [1][7]. Overview - Civil aircraft manufacturing refers to a series of industrial activities aimed at meeting non-military purposes such as civil aviation transport and general aviation operations, including aircraft design, parts production, assembly, testing, and delivery [2]. Market Policies - A series of supportive policies have been issued in recent years, including the "New Industrial Standardization Pilot Project Implementation Plan (2023-2035)" and "Guidance on Accelerating Digital Empowerment of Life Services," creating a favorable policy environment for the development of China's civil aircraft manufacturing industry [4]. Industry Chain - The upstream of the civil aircraft manufacturing industry includes suppliers of special rubber, aviation aluminum alloys, titanium alloys, high-temperature alloys, and carbon fiber composites, while the midstream consists of civil aircraft manufacturing enterprises, and the downstream focuses on aircraft applications and aftermarket services, including air transport, aircraft leasing, and maintenance [5]. Development Status - The civil aircraft manufacturing market is expected to reach a scale of 223.858 billion yuan by 2025, driven by the expansion of the aviation transport market and the growth of regional and low-cost airlines [7][8]. Competitive Landscape - The civil aircraft manufacturing industry is characterized by high capital, technology, policy, and market barriers, with Boeing and Airbus dominating the global market. However, domestic companies like COMAC and AVIC are gradually challenging this duopoly through policy support and market demand [9]. Development Trends 1. **Integration of Intelligent Manufacturing and Material Innovation**: The industry is moving towards intelligent manufacturing, utilizing technologies like digital twins and artificial intelligence to enhance production efficiency and precision [10]. 2. **Supply Chain Autonomy and Resilience**: The focus is on achieving self-sufficiency in core components and building a resilient supply chain to mitigate external disruptions [11]. 3. **Cross-Industry Integration and Green Transformation**: The integration of military and civilian technologies is expected to shorten R&D cycles, while the rise of urban air mobility and sustainable aviation fuels will drive a new manufacturing ecosystem [12].

Market Overview - The Shanghai Composite Index closed at 4114.00 points, above the annual line, with a change of 0.29% [1] - The total trading volume of A-shares reached 27,322.16 million yuan [1] Stocks Breaking Annual Line - A total of 129 A-shares have surpassed the annual line today [1] - Notable stocks with significant deviation rates include: - Xinlicheng (8.92%) - Junzheng Group (8.59%) - Tiandi Online (7.60%) [1] Stock Performance Details - The following stocks showed notable performance: - Xinlicheng: Today's change of 9.83%, turnover rate of 9.53%, latest price at 2.57 yuan [1] - Junzheng Group: Today's change of 8.68%, turnover rate of 5.01%, latest price at 5.76 yuan [1] - Tiandi Online: Today's change of 9.99%, turnover rate of 7.71%, latest price at 20.26 yuan [1] - Other stocks with smaller deviation rates include: - Hemai Co., Ltd. - Wukuang Capital - Huadian Liaoning Energy [1]