A股收评：深成指窄幅震荡微涨0.19% PCB、液冷服务器等AI硬件股多点开花

Market Performance - The three major A-share indices showed mixed results, with the Shanghai Composite Index down 0.01%, the Shenzhen Component Index up 0.19%, and the ChiNext Index down 0.29% [1] - The total trading volume in the Shanghai, Shenzhen, and Beijing markets reached 25,566 billion yuan, an increase of 757 billion yuan compared to the previous day [1] - Over 2,400 stocks across the three markets experienced gains [1] Sector Performance - The top-performing sectors included CPO, copper cable high-speed connections, optical fibers, PCBs, liquid cooling servers, wind power equipment, aerospace engines, cultivated diamonds, semiconductors, and sugar substitute concepts [1] - The sectors that faced declines included film and theater, insurance, real estate, short drama games, complete automobiles, precious metals, duty-free shops, liquor, and retail [1] Notable Stocks and Trends - Nvidia's better-than-expected earnings report boosted sentiment in the AI industry chain, leading to significant gains in AI hardware stocks such as CPO, copper cables, liquid cooling servers, and PCBs [1] - Stocks like Tianfu Communication, Hengtong Optic-Electric, Shenling Environment, and Huafeng Technology reached historical highs during the trading session [1] - Domestic computing chip stocks also benefited from the AI wave, with Cambrian Technology rising nearly 10% in the afternoon [1] - The commercial aerospace sector saw increased activity in the afternoon, with notable gains in stocks like Electric Science and Technology Blue Sky and Aerospace Power [1] Weak Sectors - The film and theater sector continued to show weakness, with Bona Film Group hitting the daily limit down again [1] - The real estate sector experienced a pullback following the recent favorable policies in the Shanghai housing market, with stocks like Wo Ai Wo Jia and Shilian Hang showing declines [1]