1月21日股市复盘：大盘缩量反弹，半导体贵金属双主线共振领涨

Market Overview - The A-share market has shown a strong independent trend amidst internal and external market dynamics, with the index opening slightly lower due to a drop in US stocks but rebounding later, driven by sectors like metals, lithium, and semiconductors [1] - The Shanghai Composite Index opened at 4103.53 points, fluctuating between 4110 and 4136 points throughout the day, while the Shenzhen Component and ChiNext indices also showed strength [1] - The overall spring market trend continues, but there are clear signs of short-term structural adjustments, with funds shifting towards high-growth sectors [1] Trading Volume - The total trading volume for the Shanghai and Shenzhen markets was 2.60 trillion yuan, a decrease of 180 billion yuan or 6.4% from the previous trading day, marking the fourth consecutive day below 3 trillion yuan [1] Sector Performance - The precious metals sector led the market, with gold prices surpassing 4800 USD per ounce, resulting in stocks like Sichuan Gold and Zhaojin Mining hitting the daily limit [4] - The semiconductor industry saw significant gains, with multiple stocks such as Huada Technology and Longxin Technology reaching their daily limits [4] - The lithium mining sector also experienced a rebound, with companies like Shengxin Lithium Energy and Dazhong Mining hitting the daily limit [4] - The oil and gas sector was active, with stocks like Huibo and Intercontinental Oil hitting the daily limit [5] - Conversely, the consumer sector weakened, particularly in the liquor segment, and the banking sector saw declines, with Agricultural Bank dropping nearly 3% [5][6] Individual Stock Highlights - Haiguang Information had the highest trading volume at 177 billion yuan, followed by TBEA, Xinyi Technology, Aerospace Electronics, and Xinwei Communication, all exceeding 150 billion yuan in trading volume [7] Technical Analysis - The Shanghai Composite Index opened lower but rebounded to a high of 4135.96 before closing with a small gain, indicating a need for a potential pullback to the 20-day moving average [9] - The index is currently showing a death cross between the 5-day and 10-day moving averages, suggesting that a strong upward movement may require either a significant bullish candle or a period of consolidation [9]