Market Overview - The infrastructure sector experienced a decline of 2.16% on January 27, with Guosheng Technology leading the drop [1] - The Shanghai Composite Index closed at 4139.9, up 0.18%, while the Shenzhen Component Index closed at 14329.91, up 0.09% [1] Stock Performance - Notable gainers in the infrastructure sector included: - Huylv Ecological (Code: 001267) with a closing price of 28.09, up 9.98% [1] - ST Lingnan (Code: 002717) with a closing price of 69.T, up 3.68% [1] - Major decliners included: - Guosheng Technology (Code: 603778) with a closing price of 16.85, down 9.21% [2] - China Railway (Code: 601390) with a closing price of 5.54, down 4.48% [2] Trading Volume and Capital Flow - The infrastructure sector saw a net outflow of 1.145 billion yuan from main funds, while retail investors contributed a net inflow of 741 million yuan [2] - The trading volume for Guosheng Technology reached 81.24 million shares, with a transaction value of 1.424 billion yuan [2] Individual Stock Capital Flow - Huylv Ecological had a main fund net inflow of 180 million yuan, while retail investors showed a net outflow of 92.43 million yuan [3] - ST Lingnan experienced a main fund net inflow of 28.66 million yuan, with retail investors showing a net outflow of 16.95 million yuan [3]

| 代码 | 名称 | 收盘价 | 涨跌幅 | 成交量(手) | 成交额(元) | | --- | --- | --- | --- | --- | --- | | 603815 | 交建股份 | 7.32 | -9.96% | 39.98万 | 2.96 Z | | 600284 | 浦东建设 | 8.17 | -4.11% | 35.09万 | 2.906.2 | | 002200 | *ST交投 | 7.10 | -3.92% | 6.25万 | 4465.60万 | | 601611 | 中国核建 | 16.73 | -3.85% | 102.97万 | 17.54亿 | | 002431 | 棕櫚股份 | 2.71 | -3.56% | 80.84万 | 2.21亿 | | 603316 | 诚邦股份 | 13.55 | -3.42% | 12.47万 | 1.69亿 | | 300982 | 示文电能 | 21.72 | -3.29% | 6.15万 | 1.35亿 | | 002062 | 宏润建设 | 10.04 | -3.28% | 41.71万 | 4.20亿 | | 002307 | 北新 ...

Core Viewpoint - The company, Zhengping Co., announced a stock price increase of 121.56% from September 2025 to January 23, 2026, with multiple instances of abnormal fluctuations during this period [1] Financial Performance - The company's revenue for 2024 was 1.362 billion yuan, with a net profit attributable to shareholders of -484 million yuan [1] - For the first three quarters of 2025, the company reported a revenue of 652 million yuan and a net profit attributable to shareholders of -99 million yuan [1] Risk Factors - The company's fundamentals remain unchanged, but the stock price volatility has accumulated significant trading risks [1] - There is a possibility that the company may face delisting due to negative audited net assets attributable to shareholders in 2025, resulting from asset impairment and other issues [1] - The pre-restructuring debt claims are partially submitted, and some subsidiaries are not included, which may complicate the resolution of matters related to the non-standard opinion for 2024 [1]

Core Viewpoint - The company, Jiangjian Co., Ltd. (603815.SH), expects to report a net loss attributable to shareholders of the parent company ranging from -700 million to -350 million yuan for the fiscal year 2025, indicating a decline compared to the previous year [1] Financial Performance - The anticipated net profit excluding non-recurring gains and losses for 2025 is projected to be between -694 million and -347 million yuan, also reflecting a loss compared to the prior year [1] - The expected losses are primarily due to the company's comprehensive review of its construction business related to Xiangyuan Holdings' real estate projects [1] Risk Factors - The company has identified potential bad debt risks associated with operating receivables from related parties of Xiangyuan Holdings, influenced by uncertainties surrounding Xiangyuan Holdings and the overall real estate market conditions [1] - As a precautionary measure, the company plans to make significant provisions for bad debts in accordance with accounting standards, which will contribute to the projected losses for 2025 [1] Operational Status - Currently, the company's production and operational conditions remain normal, and there have been no significant changes in its main business operations [1]

Market Overview - The infrastructure sector experienced a decline of 0.47% on January 23, with Jiangjian Co. leading the drop [1] - The Shanghai Composite Index closed at 4136.16, up 0.33%, while the Shenzhen Component Index closed at 14439.66, up 0.79% [1] Individual Stock Performance - Notable gainers in the infrastructure sector included: - STIF Ping, closing at 5.96 with a rise of 4.93% [1] - Guosheng Technology, closing at 18.60 with a rise of 3.28% [1] - Chengdu Road and Bridge, closing at 4.73 with a rise of 2.83% [1] - Major decliners included: - Jiangjian Co., closing at 8.13 with a drop of 2.05% [2] - Sichuan Road and Bridge, closing at 9.98 with a drop of 1.96% [2] - China Railway Construction, closing at 7.39 with a drop of 1.86% [2] Capital Flow Analysis - The infrastructure sector saw a net outflow of 2.233 billion yuan from institutional investors, while retail investors had a net inflow of 1.208 billion yuan [2] - Key stocks with significant capital flow included: - Xinjiang Jiaojian, with a net inflow of 71.7255 million yuan from institutional investors [3] - Chengdu Road and Bridge, with a net inflow of 26.6281 million yuan from institutional investors [3] - Guanzhong Ecology, with a net inflow of 19.7775 million yuan from institutional investors [3]

Core Viewpoint - The company, Zhengping Co., announced a significant stock price increase of 111.15% from September 2025 to January 22, 2026, accompanied by high volatility and multiple instances of abnormal fluctuations, despite no changes in the company's fundamentals [1] Financial Performance - The company's revenue for 2024 is reported at 1.362 billion yuan, with a net profit attributable to shareholders of -484 million yuan [1] - For the first three quarters of 2025, the company generated revenue of 652 million yuan, with a net profit attributable to shareholders of -99 million yuan [1] Risks and Uncertainties - There is high trading risk due to the stock's volatility, and the company faces uncertainties regarding the declaration of pre-restructuring debts, which may complicate the resolution of issues related to non-standard opinions [1] - The company may report a negative net asset value attributable to shareholders for the fiscal year 2025, posing a risk of delisting [1] - Additional risks include insufficient mining capacity and the freezing of mining rights [1]

Market Overview - The infrastructure sector saw a slight increase of 0.0% on January 22, with Guosheng Technology leading the gains [1] - The Shanghai Composite Index closed at 4122.58, up 0.14%, while the Shenzhen Component Index closed at 14327.05, up 0.5% [1] Top Gainers in Infrastructure Sector - Guosheng Technology (603778) closed at 18.01, up 10.02% with a trading volume of 1.53 million shares and a transaction value of 2.41 billion [1] - Pubang Co., Ltd. (002663) closed at 2.16, up 8.00% with a trading volume of 967,700 shares and a transaction value of 204 million [1] - China Nuclear Engineering (601611) closed at 17.50, up 6.64% with a trading volume of 2.07 million shares and a transaction value of 3.64 billion [1] Top Losers in Infrastructure Sector - Longjian Co., Ltd. (600853) closed at 4.48, down 7.63% with a trading volume of 1.08 million shares and a transaction value of 480 million [2] - Palm Co., Ltd. (002431) closed at 2.77, down 2.46% with a trading volume of 1.53 million shares and a transaction value of 424 million [2] - China Power Construction (601669) closed at 5.92, down 1.99% with a trading volume of 4.97 million shares and a transaction value of 2.96 billion [2] Capital Flow Analysis - The infrastructure sector experienced a net inflow of 203 million from main funds, while retail investors saw a net outflow of 1.47 billion [2] - Major stocks like China Nuclear Engineering and Guosheng Technology had significant net inflows from main funds, indicating strong institutional interest [3] Individual Stock Performance - China Nuclear Engineering had a main fund net inflow of 5.31 billion, accounting for 14.59% of its trading volume, while retail investors had a net outflow of 4.37 billion [3] - Guosheng Technology saw a main fund net inflow of 3.42 billion, representing 14.18% of its trading volume, with retail investors experiencing a net outflow of 1.14 billion [3] - Pubang Co., Ltd. had a main fund net inflow of 43.16 million, making up 21.19% of its trading volume, while retail investors had a net outflow of 2.32 million [3]

Group 1 - Shanghai Port Bay's stock increased by 5.15%, reaching 59.46 CNY per share, with a trading volume of 266 million CNY and a turnover rate of 1.88%, resulting in a total market capitalization of 14.543 billion CNY [1] - Shanghai Port Bay Infrastructure (Group) Co., Ltd. was established on January 28, 2000, and listed on September 17, 2021. The company specializes in geotechnical engineering, including foundation treatment and pile foundation engineering [1] - The revenue composition of Shanghai Port Bay includes foundation treatment at 64.93%, pile foundation engineering at 19.49%, and other services at 15.58% [1] Group 2 - Yongying Fund has a significant holding in Shanghai Port Bay, with its fund "Yongying High-end Equipment Smart Selection Mixed Initiation A" (015789) holding 11.714 million shares, accounting for 8.34% of the fund's net value, making it the third-largest holding [2] - The fund has generated an estimated floating profit of approximately 34.088 million CNY today [2] - The fund was established on July 15, 2022, with a current size of 889 million CNY, and has achieved a year-to-date return of 6.74%, ranking 3342 out of 8843 in its category [2]

证券之星消息，1月21日基础建设板块较上一交易日下跌0.88%，国晟科技领跌。当日上证指数报收于 4116.94，上涨0.08%。深证成指报收于14255.12，上涨0.7%。基础建设板块个股涨跌见下表： | 代码 | 名称 | 收盘价 | 涨跌幅 | 成交量(手) | 成交额(元) | | --- | --- | --- | --- | --- | --- | | 603778 | 園晟科技 | 16.37 | -10.01% | 1.93万 | 3164.98万 | | eoleea | 中国电建 | 6.04 | -3.36% | 705.39万 | 42.92亿 | | 002775 | 文科股份 | 4.43 | -3.06% | 53.20万 | 2.37 Z | | 002628 | 成都路桥 | 4.48 | -2.82% | 34.72万 | 1.55亿 | | 605303 | 园林股份 | 18.62 | -2.46% | 9.33万 | 1.70亿 | | 601800 | 中国交建 | 8.48 | -1.62% | 47.23万 | 4.01亿 | | 002310 | 东方新能 ...

证券研究报告·固定收益·固收点评 固收点评 20260121 龙建转债：东北基建领军者 2026 年 01 月 21 日 [Table_Tag] [Table_Summary] 事件 观点 证券分析师 李勇 执业证书：S0600519040001 010-66573671 liyong@dwzq.com.cn 2026-01-20 《 转债建议把握泛主线轮替、扩散行 情》 2026-01-20 东吴证券研究所 1 / 11 请务必阅读正文之后的免责声明部分 ◼ 龙建转债（110100.SH）于 2026 年 1 月 22 日开始网上申购：总发行规 模为 10.00 亿元，扣除发行费用后的募集资金净额用于施工总承包、偿 还银行贷款等项目。 ◼ 当前债底估值为 98.08 元，YTM 为 2.16%。龙建转债存续期为 6 年,中 诚信国际信用评级有限责任公司资信评级为 AA/AA,票面面值为 100 元，票面利率第一年至第六年分别为：0.10%、0.30%、0.60%、1.00%、 1.50%、2.00%，公司到期赎回价格为票面面值的 110.00%（含最后一期 利息），以 6 年 AA 中债企业债到期收益率 2 ...