Nvidia(US:NVDA) Zheng Quan Shi Bao Wang·2025-08-15 11:43Market Overview - The A-share market opened lower but closed higher on August 15, with the Shanghai Composite Index rising by 0.83% to 3696.77 points, approaching the 3700-point mark [1] - The Shenzhen Component Index increased by 1.6%, and the ChiNext Index rose by 2.61%, with 4623 stocks gaining and 641 declining [1] Liquid Cooling Sector - Dayuan Pump Industry achieved a 5-day consecutive limit-up, closing at 47.14 yuan per share, with a cumulative increase of over 80% in August [2] - The delivery of NVIDIA's GB300 system, which utilizes liquid cooling technology, positively impacts the liquid cooling server sector [2] - Dayuan Pump Industry reported that its liquid cooling temperature control business contributes approximately 160,000 yuan to its total revenue, indicating a small impact on financial statements [2] - The global liquid cooling market is projected to grow from under $3 billion in 2024 to $21.3 billion by 2030, with a compound annual growth rate exceeding 40% [2] Brokerage Sector Performance - The Shenwan Securities Index surged by 4.43% on August 15, with major stocks like Changcheng Securities and Tianfeng Securities hitting the daily limit [3] - The Hong Kong Securities and Futures Commission's new guidelines for virtual asset trading platforms spurred growth in the financial technology sector, benefiting brokerage stocks [3] - The margin trading balance has remained above 2 trillion yuan, reflecting increased investor confidence and risk appetite [3] Brokerage Earnings - As of August 15, 33 brokerages reported positive earnings for the first half of the year, with significant growth in net profits [4] - Guotai Junan, China Galaxy, and Guoxin Securities ranked highest in net profit, with figures of 15.62 billion yuan, 6.582 billion yuan, and 5.155 billion yuan respectively [5] - Guotai Junan expects a net profit of 15.283 billion to 15.957 billion yuan for the first half, representing a year-on-year growth of 205% to 218% [4][5] Notable Brokerage Performances - Huaxi Securities anticipates a net profit of 44.5 million to 57.5 million yuan, with a year-on-year increase of 1025.19% to 1353.9% [6] - The significant profit growth is attributed to improved business organization, management, and risk control measures [6]