人民财讯9月17日电，栖霞建设（600533）9月17日晚间公告，公司持股8.818%的股东南京高科 （600064）拟减持首发前取得的股份、发行上市后以非公开发行、利润分配方式取得的股份合计不超过 3150万股(不超过公司总股本的3%)。 ...

Quantitative Factors and Construction Methods - **Factor Name**: Large Buy Order Transaction Amount Ratio **Factor Construction Idea**: This factor captures the buying behavior of large funds by analyzing the proportion of large buy orders in the total transaction amount for a given day [7] **Factor Construction Process**: 1. Utilize tick-by-tick transaction data to reconstruct buy and sell order data based on the bid and ask sequence numbers [7] 2. Filter transactions based on order size to identify large orders [7] 3. Calculate the proportion of large buy order transaction amounts to the total transaction amount for the day [7] **Formula**: $ \text{Large Buy Order Transaction Amount Ratio} = \frac{\text{Large Buy Order Amount}}{\text{Total Transaction Amount}} $ **Factor Evaluation**: This factor effectively reflects the buying behavior of large funds [7] - **Factor Name**: Net Active Buy Transaction Amount Ratio **Factor Construction Idea**: This factor measures the active buying behavior of investors by analyzing the net active buy transaction amount as a proportion of the total transaction amount for a given day [7] **Factor Construction Process**: 1. Use tick-by-tick transaction data to classify each transaction as either active buy or active sell based on the buy/sell indicator [7] 2. Calculate the net active buy transaction amount by subtracting the active sell amount from the active buy amount [7] 3. Compute the proportion of the net active buy transaction amount to the total transaction amount for the day [7] **Formula**: $ \text{Net Active Buy Transaction Amount Ratio} = \frac{\text{Active Buy Amount} - \text{Active Sell Amount}}{\text{Total Transaction Amount}} $ **Factor Evaluation**: This factor provides insights into the active buying tendencies of investors [7] Factor Backtesting Results - **Large Buy Order Transaction Amount Ratio**: - Top 10 stocks with the highest 5-day average values: 1. Guofa Co., Ltd. (600538.SH): 86.5%, 97.9% time-series percentile [9] 2. Jilin Expressway (601518.SH): 86.3%, 82.3% time-series percentile [9] 3. Chongqing Iron & Steel (601005.SH): 85.8%, 83.1% time-series percentile [9] 4. Zijin Bank (601860.SH): 85.6%, 62.6% time-series percentile [9] 5. Jianyuan Trust (600816.SH): 85.5%, 90.5% time-series percentile [9] - **Net Active Buy Transaction Amount Ratio**: - Top 10 stocks with the highest 5-day average values: 1. Fangda Special Steel (600507.SH): 24.8%, 100.0% time-series percentile [10] 2. Liaogang Co., Ltd. (601880.SH): 18.3%, 95.1% time-series percentile [10] 3. Overseas Chinese Town A (000069.SZ): 17.6%, 99.6% time-series percentile [10] 4. Qixia Construction (600533.SH): 14.6%, 99.2% time-series percentile [10] 5. Wanwei High-Tech (600063.SH): 14.3%, 99.6% time-series percentile [10] Additional Results for Indices, Industries, and ETFs - **Indices**: - Large Buy Order Transaction Amount Ratio (5-day average): - Shanghai Composite Index: 74.2%, 25.1% time-series percentile [12] - CSI 300: 73.1%, 10.7% time-series percentile [12] - Net Active Buy Transaction Amount Ratio (5-day average): - Shanghai Composite Index: -4.3%, 95.5% time-series percentile [12] - CSI 300: -4.5%, 100.0% time-series percentile [12] - **Industries**: - Large Buy Order Transaction Amount Ratio (5-day average): - Steel: 80.6%, 46.9% time-series percentile [13] - Construction: 79.5%, 62.6% time-series percentile [13] - Net Active Buy Transaction Amount Ratio (5-day average): - Steel: 4.0%, 40.7% time-series percentile [13] - Construction: 2.4%, 70.8% time-series percentile [13] - **ETFs**: - Large Buy Order Transaction Amount Ratio (5-day average): - ChinaAMC SSE 50 ETF (510050.SH): 89.3%, 74.1% time-series percentile [15] - GF CSI All-Index IT ETF (159939.SZ): 89.2%, 54.3% time-series percentile [15] - Net Active Buy Transaction Amount Ratio (5-day average): - Huaan SSE STAR Chip ETF (588290.SH): 17.3%, 99.6% time-series percentile [16] - Harvest CSI Battery Theme ETF (562880.SH): 13.9%, 92.2% time-series percentile [16]

Summary of Key Points Core Viewpoint - The announcement confirms that Nanjing Gaoke Co., Ltd. holds 92.59308 million shares of Qixia Construction Co., Ltd., accounting for 8.818% of the total share capital, and that the planned share reduction by Nanjing Gaoke has not been implemented by the deadline [1]. Group 1: Shareholder Information - As of the announcement date, Nanjing Gaoke holds 92.59308 million shares, representing 8.818% of the total share capital of the company [1]. - The share reduction plan was disclosed on May 22, 2025, but as of September 12, 2025, Nanjing Gaoke has not executed any share reduction [1]. Group 2: Reduction Plan Implementation - The reduction plan's time frame has expired without any shares being sold [1]. - The actual reduction situation aligns with the previously disclosed reduction plan, confirming that no shares were reduced [1]. - There was no minimum reduction quantity or percentage set for this reduction plan [1]. Group 3: Plan Status - The reduction plan was not terminated early and remained active until the deadline [2].

Summary of Key Points Core Viewpoint - Nanjing Qixia Construction Co., Ltd. did not execute the previously announced share reduction plan during the specified period, resulting in no change in shareholding from Nanjing High-Tech [1] Group 1: Shareholding Information - As of the announcement date, Nanjing High-Tech holds 92.59308 million shares of Nanjing Qixia Construction, accounting for 8.818% of the total share capital [1] - The shares held by Nanjing High-Tech were acquired through various means, including 7.27924 million shares obtained before the IPO, 8.21076 million shares from a private placement, and 77.10308 million shares from other methods [1] Group 2: Reduction Plan Details - On May 22, 2025, Nanjing Qixia Construction disclosed a share reduction plan, stating that the maximum reduction would not exceed 3% [1] - The actual reduction during the period from June 13, 2025, to September 12, 2025, was 0 shares, with a reduction price range of 0 - 0 CNY per share, resulting in a total reduction amount of 0 CNY and a reduction ratio of 0% [1] - The completion status of the reduction plan indicates that while the plan period has ended, no shares were reduced, and the minimum reduction quantity or ratio was not set in the plan [1]

| 证券代码：600533 | | | 证券简称：栖霞建设 | 公告编号：2025-029 | | --- | --- | --- | --- | --- | | 债券简称：22 | 栖建 | 01 | 债券代码：185951 | | | 债券简称：23 | 栖建 | 01 | 债券代码：240284 | | | 债券简称：24 | 栖建 | 02 | 债券代码：240546 | | 股东持股的基本情况: 截至本公告披露日，南京高科股份有限公司（以 下简称"南京高科"）持有本公司股份 9259.3080 万股，占公司总股本 的 8.818%。 减持计划的实施结果情况: 2025 年 5 月 22 日，公司披露了《栖霞建设 持股 5%以上股东减持股份计划公告（临 2025-017）》。2025 年 9 月 12 日，公司收到南京高科《关于减持栖霞建设股份计划实施情况的告知 函》：截至 2025 年 9 月 12 日，南京高科未实施减持。本次减持计划时 间届满。 披露的减持时间区间届满 南京栖霞建设股份有限公司 持股 5%以上股东减持股份结果公告 本公司董事会、全体董事及相关股东保证本公告内容不存在任何虚假记载、 ...

Core Points - Nanjing Gaoke Co., Ltd., a shareholder holding more than 5%, planned to reduce its stake in Qixia Construction by up to 3% between June 13, 2025, and September 12, 2025 [1] - As of September 12, 2025, the planned reduction has not been executed, with a reduction quantity of 0 shares and a reduction ratio of 0% [1] - The current holding of Nanjing Gaoke Co., Ltd. stands at 92.5931 million shares, representing 8.818% of the total shares [1]

Core Points - The company will hold a "2025 Semi-Annual Performance Briefing" on September 17, 2025, from 15:00 to 16:00 via a WeChat mini-program for interactive communication [5] - The purpose of the briefing is to provide investors with a comprehensive understanding of the company's operational results and financial status [1] - Key personnel attending the briefing include the Chairman and President Jiang Jinsong, Independent Director Zhang Xiulian, Vice President and Board Secretary Wang Haigang, and Chief Accountant He Zhengwu [1] Investor Participation - Investors can submit questions via email to invest@chixia.com before 15:00 on September 17, 2025, and the company will address commonly asked questions during the briefing [2] - Investors can participate in the briefing by searching for the "Yao Diao Yan" mini-program on WeChat and selecting "Online Briefing" to engage in discussions [2][3] Contact Information - Contact persons for the event are Xu Xiangfeng and Chen Xiwei, with a contact number of 025-85600533 and the same email address for inquiries [4]

Core Viewpoint - Qixia Construction (stock code: 600533) announced that it will hold the "2025 Semi-Annual Performance Briefing" on September 17, 2025, in Nanjing [1] Company Summary - The company is scheduled to present its semi-annual performance results for 2025 [1]

南京栖霞建设股份有限公司 2025 年第一次临时股东大会 会议资料 二○二五年九月 联 系 人： 徐向峰 陈析微 1 一、会议召集人：公司董事会 二、会议召开时间：2025 年 9 月 17 日 14：30 三、现场会议地点：南京市仙林大道 99 号星叶广场 四、会议审议事项 1、关于取消监事会并修订《公司章程》及其附件的议案 五、现场会议议程 （1）主持人致欢迎辞，并介绍会议有关事项； （2）宣读会议议案； （3）宣读会议表决办法，投票表决； （4）在计票的同时回答股东的提问； （5）宣布议案现场表决结果。 六、会议联系方式 联系地址：南京市仙林大道 99 号星叶广场公司证券投资部 联系电话：025-85600533 邮箱：invest@chixia.com 2025 年第一次临时股东大会会议资料 2025 年第一次临时股东大会会议资料 南京栖霞建设股份有限公司 2025 年第一次临时股东大会 议程及相关事项 按照新《公司法》、《上市公司章程指引》等法律法规及规范性文件的规定， 公司拟取消监事会，监事会的相关职权由董事会审计委员会行使，《监事会议事 规则》相应废止。 二、《公司章程》修订内容 基于上述情况， ...

| 证券代码：600533 | | | 证券简称：栖霞建设 | 编号：临 2025-028 | | --- | --- | --- | --- | --- | | 债券简称：22 | 栖建 | 01 | 债券代码：185951 | | | 债券简称：23 | 栖建 | 01 | 债券代码：240284 | | | 债券简称：24 | 栖建 | 02 | 债券代码：240546 | | 南京栖霞建设股份有限公司 召开时间：2025 年 9 月 17 日（星期三）15:00-16:00 召开方式：微信小程序网络互动 三、公司出席说明会的人员 公司董事长兼总裁江劲松先生、独立董事张秀莲女士、副总裁兼董事会秘 书王海刚先生、总会计师何政武先生（如有特殊情况，参会人员将可能进行调整）。 关于召开 2025 年半年度业绩说明会的公告 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个别及连带责任。 重要内容提示： 一、说明会类型 公司已于 2025 年 8 月 30 日在《中国证券报》、《上海证券报》、《证券 时报》 及上海证券交易所网站（www.s ...