美股本周大波动，投资者在担心：经济真的强吗？AI成利空？避险资产炒成风险资产？

Group 1 - The US stock market experienced significant volatility, with a market value loss exceeding $1.5 trillion, raising concerns about the sustainability of double-digit growth in the economy and the impact of AI on existing companies [2] - Small-cap stocks have faced dual pressures, with a notable decline in the Russell 2000 index, which dropped over 5% from recent highs, as labor market data indicated economic weakness [4] - Gold and silver prices have shown extreme volatility, with the VanEck Gold Miners ETF experiencing a 13% drop, the largest in over five years, indicating a shift from stable investments to speculative trading among retail investors [5] Group 2 - The equity capital markets are under threat from AI, with 72% of S&P 500 companies reporting significant risks from AI, leading to scrutiny of various sectors including banking and small-cap stocks [6] - The impact of the software stock decline has extended to broader professional services, with companies like Thomson Reuters and Morningstar seeing double-digit drops in stock prices [7] - The recent downturn in tech stocks has drawn parallels to the internet bubble, with value stocks outperforming growth stocks, suggesting a warning for investors heavily invested in AI-related companies [8]