白银期价大跌超过8%，黄金、白银、钯金暴跌

Group 1: U.S. Stock Market Performance - Institutional investors are adjusting their positions as they reassess the AI industry's development and profitability prospects for the coming year, leading to a decline in U.S. tech stocks [1] - The three major U.S. stock indices closed lower, with the Dow Jones down 0.51%, the S&P 500 down 0.35%, and the Nasdaq down 0.50% [1] - Tesla led the decline among the seven major U.S. tech giants, falling by 3.27%, following reports that Cathie Wood's firm sold approximately $30 million worth of Tesla shares [1] Group 2: European Stock Market Performance - European markets showed mixed results, influenced by ongoing peace negotiations between Russia and Ukraine, which are reportedly in the "final stages" [2] - The defense and military stocks in Europe faced downward pressure, contributing to slight declines in some national indices, with the UK market down 0.04%, while France and Germany saw minor increases of 0.10% and 0.05%, respectively [2] Group 3: International Oil Prices - International oil prices saw a significant increase due to investor expectations that Russian oil will take time to return to the international market and concerns over Middle Eastern oil supply disruptions following Saudi airstrikes in Yemen [3] - As of the close, light crude oil futures for February delivery settled at $58.08 per barrel, up 2.36%, while Brent crude futures for February delivery closed at $61.94 per barrel, up 2.14% [3] Group 4: Precious Metals Market - Precious metals prices experienced a sharp decline, with silver futures recording the largest single-day drop in nearly five years, attributed to a significant increase in margin requirements by the CME Group [4] - Gold futures fell over 4.5%, breaking through the $4,500 and $4,400 per ounce levels, while silver futures dropped more than 8%, reaching a maximum intraday fluctuation of 15% [4] - As of the close, gold futures for February delivery settled at $4,343.6 per ounce, silver futures for March delivery at $70.460 per ounce, and palladium futures at $1,687.9 per ounce, with respective declines of 4.59%, 8.73%, and 16.58% [4]