（文章来源：每日经济新闻） 每经AI快讯，8月8日，工程机械板块异动拉升，唯万密封涨超10%盘中创历史新高，山河智能涨停，五 新隧装、铁拓机械涨超10%，恒立钻具、铁建重工、徐工机械、威博液压、南方路机跟涨。 ...

Market Overview - The engineering machinery sector increased by 1.58% on August 6, with Weiman Sealing leading the gains [1] - The Shanghai Composite Index closed at 3633.99, up 0.45%, while the Shenzhen Component Index closed at 11177.78, up 0.64% [1] Top Gainers - Weiman Sealing (301161) closed at 34.40, up 5.62% with a trading volume of 224,200 shares and a transaction value of 774 million [1] - Tongli Co. (834599) closed at 23.67, up 5.01% with a trading volume of 102,300 shares and a transaction value of 240 million [1] - Zhongli Co. (603194) closed at 42.70, up 4.10% with a trading volume of 74,800 shares and a transaction value of 319 million [1] Top Losers - Southern Road Machinery (603280) saw a significant decline of 9.97%, closing at 51.50 with a trading volume of 97,400 shares and a transaction value of 520 million [2] - Hengli Drilling Tools (836942) decreased by 5.64%, closing at 49.90 with a trading volume of 97,500 shares and a transaction value of 494 million [2] - Wuxin Suizhuang (835174) fell by 3.34%, closing at 59.41 with a trading volume of 65,900 shares and a transaction value of 39.5 million [2] Capital Flow - The engineering machinery sector experienced a net outflow of 681 million from institutional investors, while retail investors saw a net inflow of 657 million [2][3] - Major stocks like Hengli Hydraulic (601100) had a net inflow of 48.42 million from institutional investors, while retail investors contributed a net inflow of 50.73 million [3] - Weiman Sealing (301161) had a net inflow of 22.17 million from institutional investors, with retail investors also contributing a net inflow of 22.34 million [3]

证券日报网讯唯万密封（301161）8月5日在互动平台回答投资者提问时表示，截至2025年7月31日，公 司股东户数为20054户。 ...

唯万密封8月4日交易公开信息 唯万密封今日上涨12.36%，全天换手率45.39%，成交额7.31亿元，振幅15.71%。龙虎榜数据显示，机构 净买入6382.78万元，营业部席位合计净买入2254.98万元。 | 买/ | 会员营业部名称 | 买入金额（万 | 卖出金额（万 | | --- | --- | --- | --- | | 卖 | | 元） | 元） | | 买一 | 东吴证券股份有限公司上海西藏南路证券营业部 | 3864.84 | 158.29 | | 买二 | 机构专用 | 2427.73 | 1341.72 | | 买三 | 机构专用 | 2322.07 | 368.62 | | 买四 | 机构专用 | 2184.46 | 421.25 | | 买五 | 机构专用 | 2161.03 | 577.27 | | 卖一 | 机构专用 | 2427.73 | 1341.72 | | 卖二 | 机构专用 | 921.99 | 925.63 | | 卖三 | 中泰证券股份有限公司电子商务分公司 | 159.91 | 781.51 | | 卖四 | 东方财富证券股份有限公司拉萨团结路第二证券营业部 | ...

Market Performance - The engineering machinery sector rose by 0.55% on August 4, with Weiman Sealing leading the gains [1] - The Shanghai Composite Index closed at 3583.31, up 0.66%, while the Shenzhen Component Index closed at 11041.56, up 0.46% [1] Top Gainers - Weiman Sealing (301161) closed at 31.19, up 12.36% with a trading volume of 242,000 shares and a transaction value of 731 million [1] - Shanhai Intelligent (002097) closed at 15.61, up 10.01% with a trading volume of 1,532,800 shares and a transaction value of 2.36 billion [1] - Huadong Heavy Machine (002685) closed at 8.11, up 4.92% with a trading volume of 1,181,100 shares [1] Top Losers - Tietuo Machinery (873706) closed at 25.39, down 4.58% with a trading volume of 69,400 shares [2] - Heng7 Drill Tools (836942) closed at 56.90, down 4.42% with a trading volume of 117,800 shares [2] - Wuxin Suizhuang (835174) closed at 63.13, down 3.88% with a trading volume of 66,900 shares [2] Capital Flow - The engineering machinery sector saw a net inflow of 477 million from main funds, while retail funds experienced a net outflow of 32.95 million [2][3] - Major stocks like Shanhai Intelligent and Weiman Sealing had significant net inflows from main funds, indicating strong institutional interest [3] Individual Stock Analysis - Shanhai Intelligent had a main fund net inflow of 46 million, representing 19.49% of its trading volume, while retail funds saw a net outflow of 22.6 million [3] - Weiman Sealing experienced a main fund net inflow of 55.83 million, accounting for 7.64% of its trading volume, with retail funds also seeing a net outflow [3]

天眼查商业履历信息显示，上海唯万密封科技股份有限公司，成立于2008年，位于上海市，是一家以从 事通用设备制造业为主的企业。企业注册资本12000万人民币，实缴资本6312.6988万人民币。公司法定 代表人为董静。 通过天眼查大数据分析，上海唯万密封科技股份有限公司共对外投资了2家企业，参与招投标项目77 次，知识产权方面有商标信息14条，专利信息68条，此外企业还拥有行政许可14个。 来源：金融界 金融界消息 截至2025年8月4日收盘，唯万密封（301161）报收于31.19元，上涨12.36%，换手率 45.39%，成交量24.20万手，成交金额7.31亿元。 资金流向方面，今日主力资金净流入5582.64万元，占比成交额7.64%。其中，超大单净流入2570.15万 元、占成交额3.52%，大单净流入3012.48万元、占成交额4.12%，中单净流出流出3380.31万元、占成交 额4.62%，小单净流出2202.33万元、占成交额3.01%。 唯万密封最新一期业绩显示，截至2025一季报，公司营业总收入1.81亿元、同比增长26.92%，归属净利 润2477.42万元，同比增长33.48%，扣非净 ...

证券之星消息，7月31日工程机械板块较上一交易日下跌1.75%，恒立钻具领跌。当日上证指数报收于 3573.21，下跌1.18%。深证成指报收于11009.77，下跌1.73%。工程机械板块个股涨跌见下表： | 代码 | 名称 | 主力净流入 (元) | 主力净占比 游资净流入 (元) | | 游资净占比 散户净流入 (元) | | 散户净占比 | | --- | --- | --- | --- | --- | --- | --- | --- | | 002685 | 华东重机 | 1.77 | 16.49% | -7968.42万 | -7.42% | -9730.03万 | -9.06% | | 603273 | 天元智能 | 1.43 Z | 31.42% | -9306.72万 | -20.44% | -4995.12万 | -10.97% | | 600031 | 三重工 | 5753.81万 | 3.76% | -1.01亿 | -6.59% | 4340.16万 | 2.83% | | 605389 | 长龄液压 | 2906.05万 | 13.52% | -1788.58万 | -8.32% ...

工程机械板块短线走低，铁拓机械跌超11%，恒立钻具、山推股份（000680）、铁建重工、唯万密封 （301161）等跟跌。 ...

Market Performance - The Shanghai Composite Index rose by 1.67% this week, with 71 stocks having a turnover rate exceeding 100% [2] - Among the stocks with a turnover rate over 100%, the machinery equipment sector had the highest representation with 19 stocks, followed by the electronics and power equipment sectors, each with 7 stocks [2] High Turnover Stocks - The stock with the highest turnover rate this week was Southern Road Machinery, with a turnover rate of 229.04% and a price increase of 43.51%. It saw a net inflow of 135.09 million yuan from major funds [2] - Iron Tuo Machinery had a turnover rate of 205.57% and a price increase of 64.86%, but experienced a net outflow of 4.85 million yuan from major funds [2] - Weiwan Sealing ranked third with a turnover rate of 203.97% and a price increase of 13.99%, but had a net outflow of 8 million yuan from major funds [3] Stock Performance Overview - The average increase for stocks with a turnover rate over 100% was 12.01%, with 52 stocks rising and 19 stocks falling [3] - The top gainers included Hengli Drill Tools, Iron Tuo Machinery, and Tianrun Technology, with increases of 184.05%, 64.86%, and 51.04% respectively [3] - The stocks with the largest declines included Xinling Electric, C Shanda, and Wenzhou Hongfeng, with decreases of 16.41%, 15.72%, and 15.06% respectively [3] Earnings Forecasts - Among the stocks with a turnover rate over 100%, 25 companies released half-year earnings forecasts, with 11 expecting profit increases and 3 expecting profits [3] - Huahong Technology is projected to have the highest net profit increase, with a median expected net profit of 77.50 million yuan, representing a year-on-year increase of 3384.71% [3]

Core Viewpoint - The financing balance of the ChiNext market has increased, with a total of 378.92 billion yuan, marking a week-on-week increase of 0.22% [1] Group 1: Financing Balance Overview - The total margin balance of ChiNext stocks reached 380.07 billion yuan, with an increase of 0.21% from the previous trading day [1] - The financing balance specifically increased by 0.22% to 378.92 billion yuan, continuing a streak of 13 consecutive trading days of growth [1] - The margin trading balance for short selling decreased to 1.15 billion yuan, reflecting a reduction of approximately 0.06% [1] Group 2: Stocks with Increased Financing Balance - A total of 470 stocks experienced an increase in financing balance, with 31 stocks seeing an increase of over 10% [1] - The stock with the highest increase in financing balance was Dahongli, which saw a 65.04% increase to 91.58 million yuan, despite a 1.19% drop in its stock price [1][3] - Other notable stocks with significant increases include Guanlong Energy and Weiman Sealing, with increases of 50.49% and 47.29% respectively [1][3] Group 3: Market Performance of Stocks with Increased Financing Balance - Among the stocks with a financing balance increase of over 10%, the average price increase was 2.01%, with 15 stocks rising [2] - Stocks that hit the daily limit include Zhendong Pharmaceutical and Jinchun Co., with notable price increases of 14.13% and 11.00% respectively [2] - Conversely, stocks like Weiman Sealing and Guanlong Energy experienced declines of 16.05% and 5.67% respectively [2] Group 4: Stocks with Decreased Financing Balance - A total of 471 stocks saw a decrease in financing balance, with 15 stocks experiencing a decline of over 10% [4] - The stock with the largest decrease was Dingtai High-Tech, which saw a 17.09% drop in financing balance to 149.82 million yuan [4][5] - Other stocks with significant declines include Yangdian Technology and Xice Testing, with decreases of 16.94% and 13.91% respectively [4][5]