Summary of Conference Call Notes Industry Overview - The conference call focuses on the **liquid cooling investment strategy** and the **cloud service provider** industry, highlighting significant capital expenditure growth among major players like Google, Meta, and Amazon, with respective year-on-year increases of **28%**, **71%**, **102%**, and **91%** [2][5]. Key Points and Arguments - **Capital Expenditure Growth**: - Google raised its capital expenditure to **$85 billion**, Meta adjusted to **$60-72 billion**, and Microsoft also increased to **$85 billion**, while Amazon's expenditure remains unchanged [5]. - This robust growth is expected to benefit companies like **旭创 (Xuchuang)** and **新易盛 (Xinyi)** due to increased downstream customer shipment volumes, particularly with the **1.6T optical module** set for continued release in the second half of the year and into next year [2][5]. - **Company Performance**: - **旭创 (Xuchuang)** is anticipated to see a recovery in gross and net profits driven by the release of **1.6T products** and new technologies like silicon photonics [6]. - **新易盛 (Xinyi)** is expected to maintain strong performance in the second half of the year following a robust first half, despite accounting for bonuses and expenses [6]. - **天孚通信 (Tianfu)** is projected to experience growth due to accelerated shipments of **GB200** and **GB300**, with **800G** and **1.6T optical engines** showing promising growth [6]. - **Other Companies in the Optical Module Sector**: - **太辰光 (Taicheng)** benefits from overall growth from Corning customers [7]. - **长信博创 (Changxin)**'s subsidiary **长兴盛 (Changxing)** shows leading profitability, particularly in Google-related business [7]. - **仕嘉光子 (Shijia)** has seen significant growth following its acquisition of **福克西玛 (Fuxima)**, ensuring production capacity [7]. - **德科立 (Dekeli)** is benefiting from the growth of **DCI optical modules**, closely tied to major clients like Google [7]. - **Server OEM Sector**: - The **N e l 72** model indicates a significant increase in server cabinet shipments, with a **300%** quarter-on-quarter increase for **GB200** and **GB300** cabinets [8]. - **Industrial Fulian** is entering a high growth phase, expanding its OEM share for **NVIDIA** [8]. - The liquid cooling market is projected to exceed **$100 billion** by **2026**, with recommendations for companies like **英维克 (Yingweike)**, **同飞股份 (Tongfei)**, and **高澜股份 (Gaolan)** as system integrators [8]. - **Domestic Computing Chain**: - The **Deepseek V3** model is well-suited for domestic chips, with **寒武纪 (Cambricon)** reaching new market highs, driven by upstream and downstream demand [9]. - Companies like **盛科通信 (Shengke)**, **海光 (Haiguang)**, and **中兴通讯 (ZTE)** are actively involved in domestic chip development, with ZTE forming a comprehensive chip matrix [9]. - Recommendations include **紫光 (Ziguang)** and **锐捷网络 (Ruijie)** in the switch and IDC sectors [9]. Operator Sector Insights - Operators possess both offensive and defensive attributes, with capital expenditure optimization noted [10]. - **中国联通 (China Unicom)** shows the fastest growth in AI capital expenditure, while **中国电信 (China Telecom)** is deploying quantum communication, and **中国移动 (China Mobile)** has a notable dividend rate advantage [10]. - Operators are characterized by both dividend and growth attributes, making them a favorable asset allocation for the second half of the year [10].

Market Overview - The market opened low but rose throughout the day, with the ChiNext Index increasing nearly 3% in the afternoon. The trading volume exceeded 2 trillion for the third consecutive day, with over 4,600 stocks in the Shanghai, Shenzhen, and Beijing markets showing gains [1][7]. Key Sectors Glass Fiber Sector - The glass fiber sector experienced a surge, with multiple stocks hitting the daily limit, including Honghe Technology and Dongcai Technology. Guotai Junan's report indicated that PCB manufacturers and key Q fabric suppliers expect to advance the mass production of M9 products for 1.6T switches, which could lead to increased demand for Q fabric [3][5]. Liquid Cooling Sector - The liquid cooling sector continued its strong performance, with stocks like Dayuan Pump Industry and Feilong Co. hitting the daily limit. The sector is seen as having significant growth potential, with a complete system solution being more competitive in the future [5][6]. Financial Sector - The financial sector showed strong performance, with Changcheng Securities achieving a three-day limit increase. The total margin financing and securities lending balance reached 2,055.208 billion, indicating a growing interest in equity markets [7][8]. Notable Stocks - Honghe Technology (603256.SS) reached a price of 32.86 with a gain of 10.01% and a market cap of 289.08 billion [4]. - Dayuan Pump Industry (603757.SS) saw a price of 47.14 with a gain of 10.01% and a market cap of 77.66 billion [6]. - Changcheng Securities (002939.SZ) reached a price of 12.06 with a gain of 10.04% and a market cap of 420.61 billion [8]. Additional Insights - Other sectors such as photovoltaic, PCB, domestic chips, and pharmaceuticals also showed positive performance, while military and Xinjiang concepts faced declines [9].