黄金历史新高，突破4500美元

Group 1: US Stock Market Performance - The US stock market indices experienced a slight increase, marking a four-day consecutive rise for all three major indices [3][4] - The Dow Jones Industrial Average rose by 0.16% to 48,442.41 points, the S&P 500 increased by 0.46% to 6,909.79 points, and the Nasdaq Composite gained 0.57% to 23,561.84 points [4] - Major technology stocks saw most of them rise, with Amazon and Google increasing over 1%, while Tesla experienced a slight decline of less than 1% [4] Group 2: Airline and Semiconductor Sector Performance - The airline sector faced an overall decline, with American Airlines dropping over 4%, Delta Air Lines and United Airlines falling more than 2%, and Southwest Airlines decreasing over 1% [5] - The semiconductor sector showed positive performance, with the Philadelphia Semiconductor Index rising by 0.55%, and notable increases in stocks like Nvidia and Marvell Technology, both up over 3% [5] Group 3: Chinese Stocks Performance - The Nasdaq Golden Dragon China Index fell by 0.58%, with significant declines in popular Chinese stocks such as Canadian Solar down nearly 12% and Zhihu down nearly 5% [5] - Conversely, some Chinese stocks saw gains, including BrainCo up over 14% and Dada Group up over 5% [5] Group 4: Precious Metals Market - The international precious metals market saw a significant surge, with gold prices reaching a historic high, surpassing $4,500 per ounce, and accumulating a rise of over $1,870 this year [6][7] - Silver prices also increased, with London silver prices rising over 3% and breaking the $70 per ounce mark [8] - Platinum and palladium futures experienced substantial gains, with NYMEX platinum futures rising over 11% and NYMEX palladium futures increasing over 7% [2][8]