爆火的白银基金，瞬间被砸跌停！封单高达486万手！套利大军纷纷涌入，溢价还有45%...

Market Overview - The Shanghai Composite Index opened lower but closed higher, recording a seven-day rise, with a gain of 0.47% at the close [1] - The Shenzhen Composite Index and the ChiNext Index also rebounded, with increases of 0.33% and 0.3% respectively [1] - The total trading volume in the Shanghai and Shenzhen markets reached 1.92 trillion yuan, an increase of 44.3 billion yuan compared to the previous trading day [2] Sector Performance - Over 3,700 stocks in the market rose, with 93 stocks hitting the daily limit [2] - The commercial aerospace sector was notably active, with over 20 constituent stocks hitting the daily limit, including Shenjian Co. with six consecutive limit-ups [2][13] - The robotics sector saw a rapid increase, with multiple stocks such as Shikang Co. and Xiangshan Co. hitting the daily limit [2][17] - The chip industry chain strengthened, with stocks like Shenghui Integrated and Guofeng New Materials reaching the daily limit [2] - The paper sector experienced significant gains, with stocks like Bohui Paper and Yibin Paper also hitting the daily limit [2] Precious Metals and Investment Funds - Precious metals, Hainan, and energy metals sectors were among the biggest decliners, with Hainan Free Trade Zone stocks collectively dropping, including Hainan Ruize which fell nearly 7% [3] - The previously popular silver fund, Guotou Silver LOF, hit the daily limit down, with a premium still at 45% despite the drop [4][5] - On December 25, Guotou Silver LOF resumed trading but quickly hit the limit down, with a trading volume of 809 million yuan and a high sell order of 4.86 million hands [5][9] Commercial Aerospace Sector - The commercial aerospace sector is entering a new phase of rapid development, with over 600 companies in the industry and 25 launch sites [16] - The recent launch of the Long March 12 rocket and the completion of nearly 90 launches this year have set a historical record, with a significant increase in commercial launches [16] - Analysts suggest that the commercial aerospace theme is gaining momentum due to improved top-level design and new policy support, enhancing market confidence in long-term development [16] Robotics Sector - The humanoid robotics sector saw a surge, with Fenglong Co. hitting the daily limit upon resuming trading, supported by a significant order transfer agreement with UBTECH [17][19] - UBTECH, a leading company in the robotics field, has focused on humanoid robot applications and has secured nearly 1.4 billion yuan in orders this year [22]