--- title: "A 股午后拉升，三大股指翻红，液冷服务器调整、千亿大牛股跌停，恒指震荡收涨 0.5%，宁德时代再创新高" type: "News" locale: "en" url: "https://longbridge.com/en/news/283430182.md" description: "盘面上，个股跌多涨少，沪深京三市超 3400 股飘绿，今日成交逾 2.42 万亿，沪深两市成交额 2.41 万亿，较上一个交易日缩量 1700 亿。板块方面，煤炭、电力、化工涨幅靠前，工业气体、PCB、固态电池、太空光伏、商业航天、CPO 概念股活跃。AI 算力、液冷服务器、AI 应用、特高压、创新药题材调整。" datetime: "2026-04-21T08:35:43.000Z" locales: - [zh-CN](https://longbridge.com/zh-CN/news/283430182.md) - [en](https://longbridge.com/en/news/283430182.md) - [zh-HK](https://longbridge.com/zh-HK/news/283430182.md) --- # A 股午后拉升，三大股指翻红，液冷服务器调整、千亿大牛股跌停，恒指震荡收涨 0.5%，宁德时代再创新高 A-share liquid-cooled servers generally declined. Market cap leader Envicool hit the limit down. Previously, the company announced that its net profit attributable to shareholders of the listed company for the first quarter reached 8.6576 million yuan, a year-on-year decrease of 81.97%. On April 21, A-share markets opened lower across the board in the morning session. The three major indices collectively fell at the open; the ChiNext Index once dropped 1%. Some computing hardware industry chain segments such as copper-clad laminates, circuit boards, and fiberglass were active. Coal, banking, and lithium ore sectors rose. AI computing power, servers, and other sectors corrected collectively, while the semiconductor sector declined. Hong Kong stocks oscillated and retreated. The Hang Seng Tech Index fell initially, and the Hang Seng Index opened high but closed low, approaching green levels early in the morning session. Internet technology stocks diverged, with Alibaba falling nearly 1%. New consumption concepts rebounded collectively, with Mixue Group surging 7%. In the bond market, treasury bond futures rose across the board. In commodities, domestic commodity futures showed divergence, with polysilicon continuing to rise over 4%. Core Market Trends: > **A-shares**: As of press time, the Shanghai Composite Index fell 0.26%, the Shenzhen Component Index fell 0.73%, and the ChiNext Index fell 0.81%. > > > > **Hong Kong Stocks**: As of press time, the Hang Seng Index rose 0.16%, and the Hang Seng Tech Index fell 0.49%. > > > > **Bond Market**: Treasury bond futures rose across the board. As of press time, the main contract for the 30-year bond rose 0.26%, the 10-year main contract rose 0.07%, the 5-year main contract rose 0.04%, and the 2-year main contract rose 0.01%. > > > > **Commodities**: Domestic commodity futures showed divergence. As of press time, polysilicon rose over 4%, having hit the limit up the previous trading day. Alumina, crude oil, rubber, coke, and Shanghai tin rose over 1%. Iron ore, rebar, hot-rolled coil, soybean meal, caustic soda, pulp, asphalt, stainless steel, propylene, and others rose. Shanghai nickel, fuel oil, glass, eggs, freight index, ethylene glycol, palladium, industrial silicon, Shanghai copper, manganese silicate, Shanghai gold, rapeseed, methanol, aluminum, and platinum fell. Lithium carbonate and Shanghai silver fell over 1%. > > **10:18** The optical module index mostly declined. After opening sharply lower, TFC narrowed its losses in the morning session and is now down 4.5%. **** On the news front, an article from Wallstreetcn mentioned that benefiting from the explosive demand for AI and data centers, TFC's revenue for the first quarter of 2024 reached 1.33 billion yuan, a year-on-year increase of 40.82%; its net profit attributable to shareholders of the listed company was 492 million yuan, a year-on-year increase of 45.79%. Currently, the plan for listing in Hong Kong has been approved by the shareholders' meeting, marking a key step in capital operations. **09:54** The PCB concept moved against the trend. Defu Technology surged over 10% to set a new all-time high, followed by Guanghe Technology, Ping'an Electrical Engineering, Xunjie Xing, Zhongying Technology, Tongguan Copper Foil, and Yihao New Materials. On the news front, Dongwu Securities pointed out that leading PCB companies' investments in the AI field are gradually entering a phase of upward slope. It is judged that leading PCB companies may have single-quarter capital expenditure exceeding expectations in 2024, which will bring strong performance traction to PCB equipment companies. **09:39** The pharmaceutical sector moved actively against the trend. Yibai Pharmaceutical hit the limit up, followed by Jinling Pharmaceutical, Guoshengtang, Linkang Pharmaceutical, Sinocelltech, Warner Pharmaceuticals, and Sailun Biotech. On the news front, the General Office of the State Council issued the "Opinions on Improving the Mechanism for Drug Price Formation," proposing 14 measures, including optimizing the initial pricing mechanism for newly listed drugs such as innovative medicines. **09:35** The liquid-cooled server concept fell collectively. Market cap leader Envicool hit the limit down, SACRED SUN hit the limit down, DAYUAN PUMP fell 9%, EXTEK TECHNOLOGY dropped 8%, Jialitu fell over 7%, Goaland, UCloud-W, and RJWL fell over 6%, Longpan Technology, Chuanrun Shares, and Shuguang Digital Creation fell over 5%. On the news front, Envicool announced that its net profit attributable to shareholders of the listed company for the first quarter of 2024 reached 8.6576 million yuan, a year-on-year decrease of 81.97%. Previously, Envicool's stock price had accumulated gains of over 40% within the month. **09:29** A-share liquid-cooled server concepts opened lower, with Envicool hitting the limit down. On the news front, Envicool announced that its net profit for the first quarter of 2024 was 8.6576 million yuan, a year-on-year decrease of 81.97%. **09:26** The Shanghai Composite Index opened lower by 0.15%, and the ChiNext Index fell 0.42%. Liquid-cooled servers, high-speed copper connections, CPO, AI computing power, consumer electronics, and semiconductor concepts weakened; lithium battery and energy metal themes strengthened. **09:21** The Hang Seng Index opened higher by 0.31%, and the Hang Seng Tech Index rose 0.53%. Baidu Group, Trip.com Group, and BYD Company led the gains. 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