A股三大股指收涨：电力设备领涨，算力硬件产业链反弹

Market Performance - The three major A-share indices opened higher on February 12, with the ChiNext Index rising over 1% [2] - By the close, the Shanghai Composite Index increased by 0.05% to 4134.02 points, the ChiNext 50 Index rose by 1.78% to 1480.99 points, the Shenzhen Component Index gained 0.86% to 14283 points, and the ChiNext Index climbed 1.32% to 3328.06 points [2] Trading Volume - The total trading volume in the two markets and the Beijing Stock Exchange reached 21,418 billion yuan, an increase of 1,576 billion yuan compared to the previous trading day [3] - The Shanghai market's trading volume was 8,980 billion yuan, up 754 billion yuan from the previous day, while the Shenzhen market's volume was 12,438 billion yuan [3] Sector Performance - The power equipment sector led the market, with multiple stocks such as Tongguan Copper Foil and Hancable hitting the daily limit or rising over 10% [5] - The non-ferrous metals sector also saw gains, with stocks like Longmag Technology and Yunnan Tin Company reaching the daily limit or increasing over 10% [5] - Conversely, media stocks experienced significant declines, with companies like Rongxin Culture and Light Media hitting the daily limit or dropping over 10% [6] - Banking stocks also faced downward pressure, with several banks falling over 2% [6] Market Sentiment - Dongguan Securities indicated that the market may enter a phase of reduced trading volume as investor sentiment becomes more cautious ahead of the Spring Festival [7] - The market is expected to experience structural opportunities despite a potential short-term adjustment, with a shift towards a more balanced market style [7] - Huolong Securities noted that the market's trading volume has been shrinking, leading to a situation where funds are competing for existing stocks, making it difficult for popular sectors to maintain momentum [8]