证券之星消息，7月30日专业服务板块较上一交易日下跌0.01%，国义招标领跌。当日上证指数报收于 3615.72，上涨0.17%。深证成指报收于11203.03，下跌0.77%。专业服务板块个股涨跌见下表： 以上内容为证券之星据公开信息整理，由AI算法生成（网信算备310104345710301240019号），不构成投资建议。 | 代码 | 名称 | 收盘价 | 涨跌幅 | 成交量(手) | 成交额(元) | | | --- | --- | --- | --- | --- | --- | --- | | 831039 | 国义招标 | 15.91 | -4.04% | 7.00万 | | 1.13亿 | | 002057 | 中钢天源 | 9.92 | -3.22% | 53.38万 | | 5.34亿 | | 600826 | 兰生股份 | 11.17 | -2.87% | 54.94万 | | 6.25 亿 | | 301228 | 实村检测 | 30.48 | -2.40% | 2.86万 | 8769.74万 | | | 871753 | 天纺标 | 27.39 | -1.62% | 7410.83 ...

证券之星消息，7月30日基础建设板块较上一交易日下跌1.14%，中国电建领跌。当日上证指数报收于 3615.72，上涨0.17%。深证成指报收于11203.03，下跌0.77%。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) | | | --- | --- | --- | --- | --- | --- | --- | | 001267 | 汇绿生态 | 13.08 | 10.01% | 33.02万 | | 4.12亿 | | 603388 | *ST元成 | 2.62 | 4.38% | 36.97万 | | 9523.81万 | | 600284 | 浦东建设 | 7.11 | 3.64% | 42.85万 | | 3.02亿 | | 002586 | *ST間海 | 3.07 | 1.66% | 9.65万 | | 2922.76万 | | 603007 | *ST花王 | 4.98 | 1.22% | 15.09万 | | 7510.39万 | | 002663 | 普邦股份 | 1.84 | 0.55% | 26.87万 | | 493 ...

Group 1 - The stock price of 博士眼镜 (Doctor Glasses) closed at 33.78 yuan on July 29, down by 0.71 yuan, representing a decline of 2.06% [1] - The trading volume on that day was 108,619 hands, with a total transaction amount of 367 million yuan [1] - 博士眼镜 operates in the commercial retail sector, primarily focusing on eyewear retail chain operations, with brands such as 博士眼镜 and President Optical [1] Group 2 - On July 29, the company stated on its interactive platform that it is currently using artificial intelligence technology to enhance existing business efficiency and service experience, but has not independently developed or operated AI products or platforms with complex autonomous decision-making capabilities [1] - On the same day, the net outflow of main funds was 56.6 million yuan, accounting for 1.08% of the circulating market value [1]

Core Viewpoint - As of July 29, 2025, the stock price of China National Materials Technology (中材科技) is reported at 29.20 yuan, reflecting a decline of 1.72% from the previous trading day, with a trading volume of 599,399 hands and a turnover of 1.755 billion yuan [1] Company Overview - China National Materials Technology primarily engages in the research, development, production, and sales of composite material products, which are widely applied in the fields of new energy and energy conservation [1] - The company's business encompasses multiple sectors, including fiberglass and its products, wind turbine blades, and high-pressure composite gas cylinders [1] Market Activity - On the morning of July 29, 2025, China National Materials Technology experienced a rapid pullback, with a drop exceeding 2% within five minutes at 9:42 AM, reaching a low of 28.80 yuan [1] - The net outflow of main funds on that day amounted to 59.4525 million yuan [1]

Group 1 - As of July 29, the stock price of Yinglian Co., Ltd. closed at 16.28 yuan, down 4.24% from the previous trading day [1] - The trading volume on that day reached 450 million yuan, with a turnover rate of 10.60% [1] - Yinglian Co., Ltd. specializes in the research, production, and sales of metal packaging products, including food cans, beverage cans, and daily chemical cans [1] Group 2 - The company operates in the packaging materials industry and is also involved in composite electrolytes and solid-state battery concepts [1] - On July 29, the company announced on its investor interaction platform that its integrated materials for lithium metal/composite electrolyte anodes for solid-state batteries have been sent for samples to leading automotive and battery companies [1] - On the same day, the net outflow of main funds was 54.83 million yuan, accounting for 1.31% of the circulating market value [1]

Group 1 - The company's stock closed at 4.40 yuan on July 29, down 0.12 yuan or 2.65% from the previous trading day [1] - The stock opened at 4.59 yuan, reached a high of 4.79 yuan, and a low of 4.36 yuan, with a trading range of 9.51% [1] - The total trading volume for the day was 720,205 hands, with a transaction amount of 325 million yuan and a turnover rate of 7.84% [1] Group 2 - The company operates in the health industry, with main products including tiles and negative ion health materials, as well as services in medical care and health management [1] - The company is registered in Shanghai and has a business scope that covers building materials manufacturing and medical services [1] Group 3 - During the morning session on July 29, the company's stock experienced a rapid decline, with a drop of over 2% within the first five minutes before 9:35 AM, and a transaction amount of 103 million yuan at that time [1] - The net outflow of main funds for the day was 14.647 million yuan, accounting for 0.36% of the circulating market value [1]

Core Viewpoint - The stock price of Xinong Co., Ltd. closed at 20.29 yuan on July 29, 2025, reflecting a decline of 4.20% from the previous trading day, with a trading volume of 3.59 billion yuan and a turnover rate of 12.52% [1] Company Overview - Xinong Co., Ltd. specializes in the research, production, and sales of pesticides and veterinary drugs, with a product range that includes insecticides, fungicides, and herbicides [1] Market Activity - On July 29, the stock price of Xinong Co., Ltd. experienced significant volatility, with a rapid rebound observed at 9:38 AM, where the price increased by over 2% within 5 minutes. However, a sharp decline was also noted at 9:35 AM, with a drop exceeding 2% in the same timeframe [1] - The net outflow of main funds on that day amounted to 13.43 million yuan [1]

Core Viewpoint - The stock price of Sely Medical has declined significantly, reflecting challenges in its financial performance and market perception [1] Company Overview - Sely Medical operates in the pharmaceutical commercial sector, focusing on intensive in vitro diagnostics and medical consumables supply chain management [1] - The company is attempting to transition into the AI healthcare field, particularly in brain science and large model technologies [1] Financial Performance - As of July 29, 2025, Sely Medical's stock price is 31.62 yuan, down 1.53 yuan or 4.62% from the previous trading day [1] - The company reported a net profit loss forecast of 55 million to 66 million yuan for the first half of the year, indicating a year-on-year increase in loss magnitude [1] - The company has recovered 4.2 million yuan of overdue equity transfer payments but still faces 9.3 million yuan in outstanding payments [1] Market Activity - On July 29, the net outflow of main funds was 204.55 million yuan, accounting for 3.39% of the circulating market value [1] - Over the past five days, the cumulative net outflow of main funds reached 42.78 million yuan [1] Credit Rating - Rating agencies have downgraded Sely Medical's credit rating to BB+ [1]

Group 1 - The closing price of Shenzhen New Star on July 29 was 17.46 yuan, down 1.80% from the previous trading day [1] - The trading volume on that day was 75,327 lots, with a transaction amount of 133 million yuan [1] - Shenzhen New Star is primarily engaged in the research, production, and sales of aluminum grain refiners, widely used in the aluminum processing industry [1] Group 2 - The company belongs to the non-ferrous metals sector, with business involvement in integrated die-casting for the automotive industry [1] - In the first quarter of 2025, the company achieved operating revenue of 742 million yuan and a net profit of 2.42 million yuan [1] - On July 28, Shenzhen New Star completed the registration of 2 million stock options, with an exercise price set at 13.33 yuan per option, involving 6 incentive targets [1] Group 3 - On July 29, the stock experienced a rapid pullback, with a decline of over 2% within 5 minutes [1] - The net outflow of main funds on July 29 was 4.973 million yuan, accounting for 0.13% of the circulating market value [1]

Group 1 - The stock price of Funeng Technology closed at 17.02 yuan on July 29, 2025, down by 0.51 yuan, a decrease of 2.91% from the previous trading day [1] - The company specializes in the research, production, and sales of lithium-ion power batteries and systems, primarily for the electric vehicle sector [1] - Funeng Technology is involved in the battery manufacturing industry and is also exploring emerging fields such as humanoid robots and low-altitude economy [1] Group 2 - On July 29, it was announced that shareholder Shenzhen Anyan reduced its holdings by 3.49 million shares, bringing its ownership stake down to 10.95% [1] - The company completed a share reduction of 20.58 million yuan on the same day [1] - Funeng Technology revealed on its investor interaction platform that its second-generation semi-solid-state battery has an energy density of 330 Wh/kg, with plans for mass production in the second half of 2025 [1] Group 3 - The company has begun supplying batteries to a leading eVTOL company in the United States, which has entered the FAA's fourth stage of certification [1] - On July 29, the net outflow of main funds was 78.27 million yuan, accounting for 0.38% of the circulating market value [1]