证券代码：001388 证券简称：信通电子 公告编号：2025-004 山东信通电子股份有限公司 关于使用募集资金置换预先投入募投项目 及已支付发行费用的自筹资金的公告 本公司及董事会全体成员保证信息披露的内容真实、准确、完整，没有虚假记载、 误导性陈述或重大遗漏。 山东信通电子股份有限公司（以下简称"公司"或"信通电子"）于 2025 年 8 月 11 日召开第四届董事会第十五次会议和第四届监事会第十一次会议，审议通 过了《关于使用募集资金置换预先投入募投项目及已支付发行费用的自筹资金的 议案》，同意公司使用募集资金置换预先投入募投项目及已支付发行费用的自筹 资金。现将有关事宜公告如下： 一、募集资金基本情况 根据中国证券监督管理委员会出具的《关于同意山东信通电子股份有限公司 首次公开发行股票注册的批复》（证监许可〔2025〕954 号）同意注册，信通电 子首次公开发行人民币普通股（A 股）股票 3,900.00 万股，每股发行价格为人民 币 16.42 元，募集资金总额为人民币 64,038.00 万元，扣除与发行有关的费用人民 币 7,674.80 万元（不含增值税）后，实际募集资金净额为人民币 56, ...

山东信通电子股份有限公司 关于召开2025年第二次临时股东大会的通知 本公司及董事会全体成员保证信息披露的内容真实、准确、完整，没有虚假记 载、误导性陈述或重大遗漏。 山东信通电子股份有限公司（以下简称"公司"、"本公司"或"信通电子"） 于2025年8月11日召开第四届董事会第十五次会议，审议通过了《关于召开2025年第 二次临时股东大会的议案》，公司决定于2025年8月27日（星期三）召开2025年第二 次临时股东大会。现将本次股东大会的有关事项通知如下： 一、召开会议的相关情况 1、股东大会届次：2025年第二次临时股东大会 2、股东大会的召集人：公司董事会 3、会议召开的合法、合规性：本次股东大会的召开符合有关法律、行政法规、部门 规章、规范性文件、交易所业务规则和《公司章程》等的规定。 4、会议召开的日期、时间： 现场会议时间：2025年8月27日（星期三）下午14:30 证券代码：001388 证券简称：信通电子 公告编号：2025-008 （3）公司股东应选择现场投票、网络投票中的一种方式进行表决，如果同一 表决权出现重复投票表决的，以第一次投票表决结果为准。 6、股权登记日：2025年 8月 ...

1、审议通过《关于使用募集资金置换预先投入募投项目及已支付发行费用的自 筹资金的议案》 证券代码：001388 证券简称：信通电子 公告编号：2025-009 山东信通电子股份有限公司 第四届监事会第十一次会议决议公告 本公司及监事会全体成员保证信息披露的内容真实、准确、完整，没有虚假记 载、误导性陈述或重大遗漏。 一、监事会会议召开情况 山东信通电子股份有限公司（以下简称"公司"）第四届监事会第十一次会议于 2025年8月11日以现场方式在公司会议室召开。会议通知已于2025年8月7日通过邮件 方式送达各位监事。本次会议应出席监事3名，实际出席监事3名。本次会议由监事会 主席崔利先生召集并主持，公司董事会秘书列席会议。会议的召集、召开及表决程序 符合《中华人民共和国公司法》（以下简称"《公司法》"）等法律、法规、规范性 文件和《公司章程》的有关规定，会议合法有效。 二、监事会会议审议情况 与会监事认真审议，通过了如下议案： 公司以募集资金置换预先投入募投项目及已支付发行费用的自筹资金合计 11,673.45万元，其中，置换已投入募投项目的自筹资金金额为8,915.31万元，置换 已支付发行费用的自筹资金金额 ...

本公司及董事会全体成员保证信息披露的内容真实、准确、完整，没有虚假记载、误导 性陈述或重大遗漏。 一、董事会会议召开情况 证券代码：001388 证券简称：信通电子 公告编号：2025-003 山东信通电子股份有限公司 第四届董事会第十五次会议决议公告 山东信通电子股份有限公司（以下简称"公司"）第四届董事会第十五次会议于 2025年8月11日以现场和通讯相结合的方式在公司会议室召开，会议通知已于2025年8 月7日通过邮件方式送达各位董事。本次会议应出席董事7名，实际出席董事7名，其 中董事郭炉先生、王树亭先生、刘元锁先生以通讯表决方式出席。本次会议由董事长 李全用先生召集并主持，公司部分监事和高级管理人员列席了本次会议。会议的召集、 召开及表决程序符合《中华人民共和国公司法》（以下简称"《公司法》"）等法律、 法规、规范性文件和《公司章程》的有关规定，会议合法有效。 二、董事会会议审议情况 与会董事认真审议，通过了如下议案： 1、审议通过《关于使用募集资金置换预先投入募投项目及已支付发行费用的自 筹资金的议案》 公司以募集资金置换预先投入募投项目及已支付发行费用的自筹资金合计 11,673.45万元，其中 ...

Group 1 - The Hong Kong Stock Exchange announced on August 8 that the Shenzhen Stock Connect list will be adjusted, with five stocks being added to the list effective from August 18 [1][2] - The companies included in the Shenzhen Stock Connect list are: Xintong Electronics (001388.SZ), Tongyu New Materials (301630.SZ), Xinhenghui (301678.SZ), Tefa Information (000070.SZ), and Zhongli Group (002309.SZ) [1][2]

8月8日，港交所公告显示，深股通名单将进行调整，信通电子（001388）(001388.SZ)、同宇新材（301630） (301630.SZ)、新恒汇（301678）(301678.SZ)、特发信息（000070）(000070.SZ)、中利集团（002309）(002309.SZ)共 5只股票获纳入深股通名单，8月18日起生效。 | 纳入 | | | --- | --- | | 公司名称 | 股票代码 | | 信通电子 | 001388.SZ | | 同宇新材 | 301630.SZ | | 新恒汇 | 301678.SZ | | 特发信息 | 000070.SZ | | 中利集团 | 002309.SZ | ...

格隆汇8月4日丨信通电子(001388.SZ)在投资者互动平台表示，公司目前没有充电桩相关的业务，对该 业务我们后续会保持密切关注。 ...

格隆汇8月4日丨信通电子(001388.SZ)在投资者互动平台表示，公司目前没有充电桩相关的业务，对该 业务我们后续会保持密切关注。 ...

Quantitative Models and Construction Methods Model Name: New Stock Issuance Model - **Construction Idea**: The model aims to track the performance of newly issued stocks in various market segments, including the main board, ChiNext, and STAR Market[1][12][22]. - **Construction Process**: - Collect data on the number of new stocks issued, the amount of funds raised, and the first-day price performance. - Calculate the average first-day price increase for each market segment. - Formula: $ \text{Single Account Stock Return} = \min(\text{Account Size}, \text{Subscription Limit}) \times \text{Winning Rate} \times \text{Return Rate} $ $ \text{A/B/C Class Investors Full Return} = \text{Subscription Limit} \times \text{A/B/C Class Offline Winning Rate} \times \text{Return Rate} $ - Parameters: - Winning Rate: Actual winning rate of offline new stock issuance. - Return Rate: For new stocks listed on the STAR Market and ChiNext, and under the comprehensive registration system on the main board, the return rate is the first-day average transaction price relative to the issue price. For non-registration system main board stocks, the return rate is the average transaction price on the opening day relative to the issue price[40][41][42]. - **Evaluation**: The model provides a comprehensive view of the performance of new stock issuances across different market segments, helping investors understand the potential returns from participating in new stock offerings[1][12][22]. Model Backtesting Results New Stock Issuance Model - **Main Board**: - A Class: Monthly return rate 0.159%, cumulative return 1.000%[41][42][47] - C Class: Monthly return rate 0.141%, cumulative return 0.908%[41][42][47] - **ChiNext**: - A Class: Monthly return rate 0.035%, cumulative return 1.128%[41][45][47] - C Class: Monthly return rate 0.034%, cumulative return 0.989%[41][45][47] - **STAR Market**: - A Class: Monthly return rate 0.064%, cumulative return 0.547%[41][46][47] - C Class: Monthly return rate 0.063%, cumulative return 0.527%[41][46][47] Quantitative Factors and Construction Methods Factor Name: New Stock Performance Factor - **Construction Idea**: This factor aims to measure the performance of new stocks on their first day of trading, providing insights into the potential returns from participating in new stock offerings[1][12][22]. - **Construction Process**: - Collect data on the first-day price performance of new stocks. - Calculate the average first-day price increase for each market segment. - Formula: $ \text{First-Day Price Increase} = \frac{\text{First-Day Closing Price} - \text{Issue Price}}{\text{Issue Price}} \times 100\% $ - Parameters: - First-Day Closing Price: The closing price of the stock on its first day of trading. - Issue Price: The price at which the stock was issued[1][12][22]. - **Evaluation**: This factor provides a clear measure of the initial performance of new stocks, helping investors gauge the potential returns from participating in new stock offerings[1][12][22]. Factor Backtesting Results New Stock Performance Factor - **Main Board**: - Average first-day price increase: 276.29%[22][23] - **ChiNext**: - Average first-day price increase: 356.00%[22][23] - **STAR Market**: - Average first-day price increase: 174.56%[22][23] Fund Product Performance Fund Product Performance in New Stock Offerings - **Construction Idea**: Measure the participation and success rate of fund products in new stock offerings, and calculate their estimated returns based on their participation and winning rates[57][58][59]. - **Construction Process**: - Collect data on the participation and winning rates of fund products in new stock offerings. - Calculate the estimated returns based on the latest fund quarterly report. - Formula: $ \text{Participation Rate} = \frac{\text{Number of New Stocks Quoted}}{\text{Total Number of New Stocks Issued}} $ $ \text{Winning Rate} = \frac{\text{Number of Valid Quotes}}{\text{Number of New Stocks Quoted}} $ - Parameters: - Participation Rate: The rate at which the fund product participates in new stock offerings. - Winning Rate: The rate at which the fund product's quotes are accepted[57][58][59]. - **Evaluation**: This method provides a detailed view of the performance of fund products in new stock offerings, helping investors understand the potential returns from participating in new stock offerings through fund products[57][58][59]. Fund Product Backtesting Results Fund Product Performance - **Top Performing Funds**: - Middle European Shanghai-Shenzhen 300 Index A: Estimated return rate 0.337%[57][58][59] - ICBC Quality Selection A: Estimated return rate 0.33%[57][58][59] - Huatai-PineBridge Innovation Power: Estimated return rate 0.33%[57][58][59] Institutional Performance Institutional Performance in New Stock Offerings - **Construction Idea**: Measure the participation and success rate of institutions in new stock offerings, and calculate their estimated returns based on their participation and winning rates[60][61][62]. - **Construction Process**: - Collect data on the participation and winning rates of institutions in new stock offerings. - Calculate the estimated returns based on the latest institutional quarterly report. - Formula: $ \text{Participation Rate} = \frac{\text{Number of New Stocks Quoted}}{\text{Total Number of New Stocks Issued}} $ $ \text{Winning Rate} = \frac{\text{Number of Valid Quotes}}{\text{Number of New Stocks Quoted}} $ - Parameters: - Participation Rate: The rate at which the institution participates in new stock offerings. - Winning Rate: The rate at which the institution's quotes are accepted[60][61][62]. - **Evaluation**: This method provides a detailed view of the performance of institutions in new stock offerings, helping investors understand the potential returns from participating in new stock offerings through institutional products[60][61][62]. Institutional Backtesting Results Institutional Performance - **Top Performing Institutions**: - GF Fund: Estimated return rate 1.74 billion[60][61][62] - China Asset Management: Estimated return rate 1.51 billion[60][61][62] - E Fund Management: Estimated return rate 1.33 billion[60][61][62]

- The report tracks the recent performance of the IPO market, including the Sci-Tech Innovation Board, the Growth Enterprise Market, and the Main Board, assuming all stocks are hit and sold at the market average price on the first day of listing, ignoring the lock-up period restrictions [2][10] - The report calculates the IPO yield for different account sizes, with A-class 2 billion scale accounts yielding 1.89%, B-class 2 billion scale accounts yielding 1.69%, A-class 10 billion scale accounts yielding 0.60%, and B-class 10 billion scale accounts yielding 0.55% [2][10] - The report tracks the median number of valid quotation accounts for recent 20 new stocks, with A-class valid quotation accounts for Sci-Tech Innovation Board stocks around 3062, B-class around 1602; A-class valid quotation accounts for Growth Enterprise Market stocks around 3591, B-class around 2079; A-class valid quotation accounts for Main Board stocks around 3790, B-class around 2275 [2][22] - The report lists the recent IPO results, including the issuance price, issuance P/E ratio, industry P/E ratio, number of new shares issued, actual fundraising amount, strategic placement, online issuance, offline issuance, online winning rate, online issuance oversubscription multiple, offline preliminary inquiry oversubscription multiple, offline subscription allocation ratio, and offline issuance effective subscription multiple [24] - The report calculates the theoretical IPO yield for different account sizes, assuming all stocks are hit, sold at the market average price on the first day of listing, and using 90% capital efficiency [39][40] - The report lists the monthly IPO yield and IPO yield rate for different account sizes, assuming all stocks are hit, sold at the market average price on the first day of listing, and using 90% capital efficiency [43][44][45][46] - The report lists the monthly IPO yield and IPO yield rate for different account sizes, assuming all stocks are hit, sold at the market average price on the first day of listing, and using 90% capital efficiency [47][50][51][52][53] - A-class 2 billion scale accounts IPO yield rate is 1.89% [10] - B-class 2 billion scale accounts IPO yield rate is 1.69% [10] - A-class 10 billion scale accounts IPO yield rate is 0.60% [10] - B-class 10 billion scale accounts IPO yield rate is 0.55% [10] - Sci-Tech Innovation Board stocks first-day average increase is 218.45% [16] - Growth Enterprise Market stocks first-day average increase is 227.38% [16] - Sci-Tech Innovation Board stocks A-class valid quotation accounts around 3062 [22] - Sci-Tech Innovation Board stocks B-class valid quotation accounts around 1602 [22] - Growth Enterprise Market stocks A-class valid quotation accounts around 3591 [22] - Growth Enterprise Market stocks B-class valid quotation accounts around 2079 [22] - Main Board stocks A-class valid quotation accounts around 3790 [22] - Main Board stocks B-class valid quotation accounts around 2275 [22] - The highest first-day increase for new stocks is 426.31% [33] - The highest fundraising amount for new stocks is 181.71 billion yuan [33] - The highest full subscription yield for new stocks is 141.4 million yuan [37] - The highest monthly IPO yield for A-class accounts is 248.20 million yuan [44] - The highest monthly IPO yield rate for A-class accounts is 6.22% [44] - The highest monthly IPO yield for B-class accounts is 179.55 million yuan [50] - The highest monthly IPO yield rate for B-class accounts is 5.04% [50]