A股收评：指数集体下挫！贵金属现跌停潮，白酒、电网设备逆势上扬

Market Overview - Major A-share indices collectively declined, with the Shanghai Composite Index falling by 2.48% to 4015 points, the Shenzhen Component Index down 2.69%, and the ChiNext Index down 2.46% [1][2] - The trading volume in the Shanghai and Shenzhen markets was 2.58 trillion yuan, a decrease of 250.8 billion yuan compared to the previous trading day [1] Sector Performance - The precious metals sector experienced a significant downturn, with over 4600 stocks declining and more than a hundred hitting the daily limit down [1][2] - Semiconductor stocks also faced heavy losses, with several companies, including Zhongwei Semiconductor and others, dropping over 10% [2][7] - Telecom operators showed weakness, with China Unicom falling over 5% and other major telecom companies following suit [9] - The automotive sector saw declines, with companies like Zotye Auto and BYD dropping over 4% [11] - In contrast, the liquor sector saw gains, with Jinhuijiu and Huangtai Jiuye hitting the daily limit up [3][13] - The electric power equipment sector surged, with Yinen Electric rising nearly 22% and several other stocks hitting the daily limit up [15] Specific Stock Movements - Precious metals stocks collectively fell, with notable declines including Xiaocheng Technology down nearly 19% and several others hitting the daily limit down [5][6] - In the semiconductor sector, stocks like Jucheng Technology and Mingwei Electronics dropped over 13% [7][8] - Telecom stocks were negatively impacted by a new tax policy, with UBS predicting significant adverse effects on the profitability of major telecom operators [10] - Automotive companies reported declines in January delivery data, with BYD's new energy vehicle sales down 30.11% year-on-year [11][12] - The liquor sector's positive performance was attributed to unexpected demand ahead of the Spring Festival, with market expectations previously low [13][14] - The electric power equipment sector's growth was driven by increased investment from the State Grid, with fixed asset investments expected to reach 4 trillion yuan during the 14th Five-Year Plan [15][16]