今日十大热股：通富微电、华天科技、中国长城领衔，锋龙股份16连板持续爆炒

Market Overview - A-shares showed mixed performance on January 21, with the Sci-Tech Innovation 50 index rising by 3.53%, while the Shanghai Composite Index increased by 0.08%, the Shenzhen Component Index rose by 0.7%, and the ChiNext Index gained 0.54% [1] - The total trading volume in the Shanghai and Shenzhen markets was 2.60 trillion yuan, a decrease of approximately 177.1 billion yuan compared to the previous trading day [1] - Among individual stocks, 2,962 stocks rose while 2,046 stocks fell [1] Sector Performance - Semiconductor sector saw the highest net inflow of funds, while the electric grid equipment and brewing industries experienced significant net outflows [1] - Precious metals and silver led the gains among themes, while sectors like electric power IoT and space computing faced declines [1] Hot Stocks - The top ten popular stocks included Tongfu Microelectronics, Huatian Technology, China Great Wall, Lioo Co., Silver Lead, Changdian Technology, Fenglong Co., Dagang Co., Hunan Silver, and TBEA [2] - Tongfu Microelectronics and Huatian Technology both achieved a heat value of 9.5, benefiting from national fund holdings and Huawei-related concepts, with both stocks hitting the daily limit [2] - China Great Wall's stock price increased due to significant improvement in fundamentals and alignment with current market trends [3] Company Insights - Tongfu Microelectronics' stock price surged due to improved industry conditions and better-than-expected company performance, with a forecasted net profit growth of over 60% year-on-year [3] - Huatian Technology's stock performance is driven by its competitive advantage in advanced packaging technology and ongoing acquisition efforts [3] - China Great Wall's stock strength is attributed to a significant reduction in losses and its role as a core player in the Xinchuang industry [3] - Lioo Co. gained attention due to its involvement in AI applications and liquid cooling pumps, although it faced volatility post-resumption of trading [3] - Silver Lead's stock performance is closely tied to international silver prices, which have reached historical highs, benefiting from industrial demand and safe-haven buying [3] - Changdian Technology is experiencing growth due to the overall recovery of the packaging and testing industry and advancements in technology [3] Additional Company Developments - Fenglong Co.'s stock price fluctuations are linked to a change in control, with a proposed acquisition by UBTECH, which is expected to create business synergies [4] - Dagang Co. and Hunan Silver are benefiting from their respective positions in the semiconductor industry and the rising silver prices [4]