AI概念，突发回调！

Market Performance - The three major U.S. stock indices showed mixed performance, with the Dow Jones Industrial Average rising by 1.18% to close at a record high of 47,927.96 points, while the Nasdaq fell by 0.25% to 23,468.3 points, and the S&P 500 increased by 0.21% to 6,846.61 points [1] Technology Sector - Major tech stocks exhibited varied performance, with Apple up over 2%, Microsoft up 0.53%, Google up 0.42%, Amazon up 0.28%, while Nvidia fell nearly 3%, Tesla dropped over 1%, and Facebook declined by 0.74% [3] - SoftBank Group announced it had completely sold its Nvidia shares in October, cashing out $5.83 billion, raising concerns about an AI bubble in the market [3] - Michael Burry's Scion Asset Management has concentrated about 80% of its holdings on shorting "AI darling" stocks like Palantir and Nvidia, drawing significant market attention [3] Semiconductor Sector - The Philadelphia Semiconductor Index fell by 2.48%, with Micron Technology, Lam Research, and Marvell Technology each dropping over 4% [5] - Qualcomm was one of the few gainers in the semiconductor sector, rising over 1% [5] AI Infrastructure - CoreWeave, an AI cloud infrastructure provider, saw its stock price drop over 16% due to disappointing earnings guidance, negatively impacting AI-related trading [4] Oil and Commodities - International oil prices increased, with light crude oil futures for December rising by $0.91 to $61.04 per barrel, a 1.51% increase, and January Brent crude oil futures rising by $1.10 to $65.16 per barrel, a 1.72% increase [5] - Gold and silver prices continued to rise, with COMEX gold futures up 0.25% to $4,132.3 per ounce and COMEX silver futures up 1.49% to $51.06 per ounce [6]