周一早盘：美股股指期货走势平稳 白银续创新高

Group 1 - The S&P 500 index futures showed a slight increase, while the Dow Jones Industrial Average futures also rose, and the Nasdaq 100 index futures fluctuated near the flatline as traders prepare to close out a strong year in 2025 [2][6] - The S&P 500 index reached an intraday high of 6945.77 points before closing slightly flat [2][6] - International spot silver opened above $80 per ounce and surged to over $83, continuing its historic upward trend as it has risen for six consecutive trading days, with a 10% increase last Friday marking the largest single-day gain since 2008 [2][6] Group 2 - Silver has accumulated an increase of over 185% this year, potentially marking its best annual performance since 1979, driven by speculative inflows and ongoing supply disruptions following a short squeeze in October [2][6] - Wall Street is experiencing a fruitful year in 2025, with the S&P 500 index up 17.7%, the Dow Jones Industrial Average up 14.5%, and the Nasdaq Composite index showing a remarkable increase of 22.2% [2][6] Group 3 - The market is currently in the "Santa Claus rally" window, a traditional strong upward period for stocks, with the S&P 500 index averaging over a 1% increase during the last five trading days of the year and the first two trading days of the next year since 1950 [3][7] - This week’s economic data calendar is relatively light, but investors will have another opportunity to gain insights into the Federal Reserve's policy direction for 2026, with the December monetary policy meeting minutes set to be released [3][7]