A股三大指数21日涨跌不一，截至收盘，沪指涨0.13%，深成指跌0.06%，创业板指跌0.47%，北证50指 数跌1.60%，沪深京三市全天成交额24603亿元，较上日放量119亿元。全市场超2100只个股上涨。 板块 题材上，跨境支付、油气开采及服务、可燃冰板块走高，PCB概念、液冷服务器板块调整。 盘面上， 跨境支付板块全线走强，三未信安、新晨科技20CM涨停封板，中油资本、天融信等涨停封板。油气开 采及服务板块走高，淮油股份涨停封板。可燃冰板块走强，神开股份涨停。PCB概念走弱，崇达技术跌 停。液冷服务器板块走弱，川润股份、飞龙股份、腾龙股份、金田股份跌停。 （来源同花顺，以上信息为南都·湾财社AI大数据自动生成） ...

Market Overview - The A-share market experienced fluctuations with mixed performance across the three major indices, with the Shanghai Composite Index rising by 0.13% while the Shenzhen Component and ChiNext indices fell by 0.06% and 0.47% respectively [1] - The total trading volume in the Shanghai and Shenzhen markets reached 2.42 trillion yuan, an increase of 158 billion yuan compared to the previous trading day, marking the seventh consecutive day of trading volume exceeding 2 trillion yuan [1] Sector Performance - Digital currency concept stocks saw a collective surge, with several stocks, including Yuyin Co., hitting the daily limit [1] - Oil and gas stocks performed actively, with Zhun Oil Co. also reaching the daily limit [1] - Banking stocks showed resilience, with Agricultural Bank of China and Postal Savings Bank of China both achieving historical highs [1] - Conversely, high-priced stocks experienced significant declines, with multiple stocks, including Feilong Co., hitting the daily limit down [1] - Sectors such as telecommunications, diversified finance, oil and gas, and fertilizers and pesticides saw notable gains, while sectors like liquid cooling servers, PCB, optical modules, and PEEK materials generally weakened [1]

回天新材8月21日在互动平台表示，公司当前主要围绕液冷超冲模块进行高导热灌封胶产品布局，产品 尚未应用于液冷服务器中。 ...

Group 1 - The core viewpoint of the article highlights the volatility of the stock of Invec (002837.SZ), which surged to a historical high of 71.6 yuan before experiencing a significant drop of 9.11% to 62.99 yuan shortly after opening [1] - The stock has seen a cumulative increase of 131.6% year-to-date, indicating strong market interest in liquid cooling technology [1] - The announcement by CoreWeave, a major cloud service provider, regarding the deployment of NVIDIA's GB300NVL72 system marks a significant milestone in the liquid cooling server market, as it requires a full liquid cooling design due to its high power output of 120kW per cabinet [1] Group 2 - Since July, the liquid cooling server index has risen over 34%, reflecting growing enthusiasm for this technology within the market [1] - Despite the excitement surrounding liquid cooling servers, there are concerns about potential irrational speculation, suggesting that investors should approach this market trend with caution [1]

Group 1 - The A-share market experienced fluctuations with mixed performance across the three major indices, with the Shanghai Composite Index rising by 0.13% while the Shenzhen Component and ChiNext indices fell by 0.06% and 0.47% respectively [3] - The total trading volume in the Shanghai and Shenzhen markets reached 2.42 trillion, an increase of 158 billion compared to the previous trading day, marking the seventh consecutive day of trading volume exceeding 2 trillion [1][6] - The market showed a diverse range of performance among individual stocks, with over 3,000 stocks declining, while digital currency concept stocks and oil and gas stocks saw significant gains, including multiple stocks hitting the daily limit up [1][2] Group 2 - Key sectors that performed well included oil and gas, digital currency, beauty care, and banking, while sectors such as rare earth permanent magnets, PEEK materials, liquid cooling servers, and CPO experienced declines [2] - The limit-up performance rate was recorded at 61%, with 43 stocks hitting the limit up and 27 stocks touching the limit down, indicating a volatile trading environment [6]

Market Overview - A-shares experienced a significant rise on August 21, with the Shanghai Composite Index nearing 3800 points, although it later turned negative with over 3400 stocks declining and a trading volume of 2.12 trillion yuan [1][3] - The trading volume in the Shanghai and Shenzhen markets has surpassed 2 trillion yuan for seven consecutive trading days, marking only the second occurrence in the last decade [5] Sector Performance - Digital currency stocks surged, with several stocks hitting the daily limit, while oil and gas stocks also showed strength [3] - The liquid cooling server concept stocks faced a sharp decline, with multiple stocks hitting the daily limit down, indicating a market correction [7][10] - The rare earth permanent magnet sector also began to retreat, with significant declines in stocks like Jintian Co. and Beikong Technology [10][11] Foreign Investment Trends - Foreign capital is increasingly entering the Chinese market, with 663 companies disclosing their mid-year reports, and 139 companies seeing significant QFII investments [16] - South Korean investors have increased their holdings in Chinese stocks, with a notable rise in investments in tech and emerging industry leaders such as Xiaomi and Tencent [17][18] Banking Sector - The banking sector showed resilience, with the banking index rising by 0.59% and an overall increase of over 16% year-to-date [13][14] - Regulatory changes are expected to broaden the scope of merger loans, which may further support the banking sector [14]

Group 1 - The A-share market showed mixed performance with the ChiNext index fluctuating, while sectors related to AI hardware such as liquid cooling servers and circuit boards faced significant declines [1] - The liquid cooling concept has gained attention, with multiple institutions optimistic about its industry chain development prospects, driven by increasing AI model updates and application demands [1] - CICC predicts that the global AI liquid cooling market size is expected to reach $8.6 billion by 2026, indicating rapid market growth [1] Group 2 - Huatai Securities states that the liquid cooling industry chain is entering a phase of increased demand, highlighted by NVIDIA's GB300 adopting a fully liquid cooling design [2] - Major North American cloud providers like Google, Meta, and Microsoft are expected to transition to liquid cooling technology in their next-generation self-developed ASIC chip clusters [2] - Domestic liquid cooling industry leaders are actively engaging with overseas AI giants, suggesting that companies with advanced technology and strong performance are likely to achieve breakthroughs [2]

Market Overview - The three major indices collectively rose, with the Shanghai Composite Index up by 0.35%, the Shenzhen Component Index up by 0.45%, and the ChiNext Index up by 0.21%. However, the North China 50 Index fell by 0.96% [1] - The total trading volume in the Shanghai, Shenzhen, and Beijing markets reached 1.5912 trillion yuan, an increase of 56.2 billion yuan compared to the previous day. Over 2,500 stocks in the market experienced gains [1] Sector Performance - The cross-border payment, oil and gas exploration and services, and combustible ice sectors showed strong performance, while the PCB concept and liquid cooling server sectors experienced adjustments [2] - The cross-border payment sector was particularly strong, with companies such as Sanwei Xinan and New Morning Technology hitting the daily limit, along with Zhongyou Capital and Tianrongxin also reaching the daily limit [2] - The oil and gas exploration and services sector saw gains, with Huaiyou Co. hitting the daily limit [2] - The combustible ice sector performed well, with companies like Xinjing Power and Shenkai Co. rising over 8% [2] - Conversely, the PCB concept weakened, with Chongda Technology nearing the daily limit down [2] - The liquid cooling server sector also declined, with companies like Tenglong Co. and Jintian Co. hitting the daily limit down [2]

Market Overview - The A-share market opened higher on August 21, with the Shanghai Composite Index rising by 0.12%, the Shenzhen Component Index by 0.33%, and the ChiNext Index by 0.28%. However, over 3,200 companies in the market experienced declines by 10:00 AM [1]. Sector Performance - Sectors such as digital currency, cross-border payments, rare earths, fintech, and cybersecurity saw significant gains, while sectors like copper-clad laminates, liquid cooling servers, circuit boards, optical modules (CPO), optical communications, PEEK materials, consumer electronics manufacturing, photolithography machines, and robotic technology faced notable declines [3][4]. Notable Index Movements - The Wind Liquid Cooling Server Index fell by 3.56%, with companies like Feilong Co. and Tenglong Co. nearing their daily limit down, and others like Kexin New Source and Yingweike dropping over 5% [5]. - The Wind Optical Module (CPO) Index decreased by 3.38%, with significant drops in companies such as Cambridge Technology and Guangku Technology, both falling over 5% [7]. - In the consumer electronics manufacturing sector, companies like Furi Electronics and Lingyi Technology saw declines exceeding 3% [9]. Highlighted Stocks - Despite the overall market downturn, Cambrian Biologics (寒武纪-U) continued to rise, reaching a new historical high with a stock price increase of 3.65%, bringing its market capitalization to over 440 billion yuan [9][10]. - ZTE Corporation initially surged by 9.99% but later opened its limit, with trading volume exceeding 12.6 billion yuan [10].

Group 1 - The trading volume of the Shanghai and Shenzhen stock markets has exceeded 1.5 trillion yuan for the 26th consecutive trading day [1] - The combustible ice sector saw significant gains, with Shenke Co. rising over 5% and other companies like Qianeng Huanxin and CNOOC also experiencing increases [2][3] - Oil and gas stocks continued to rise, with Zhun Oil Co. hitting the daily limit up of 10.05% [4] Group 2 - The three major indices in the stock market turned positive, with the Shanghai Composite Index up by 0.40% and the Shenzhen Component Index up by 0.37% [5][13] - ZTE Corporation's A-shares surged over 7%, with trading volume exceeding 14 billion yuan [5][11] - The agricultural and forestry sectors experienced short-term gains, with Kangnong Seed Industry rising over 10% [7] Group 3 - The digital currency sector saw significant increases, with Xinchen Technology hitting the daily limit up of 20% [15][16] - The stock price of Cambrian continued to reach new highs, with a market capitalization surpassing 440 billion yuan [9][10] - The central bank conducted a 2.53 billion yuan reverse repurchase operation at an interest rate of 1.40% [21]