12月13日收盘：美股收跌纳指下跌400点 AI个股普跌

Market Overview - US stock market experienced a decline, with technology stocks leading the drop, particularly the Nasdaq which fell by nearly 40 points [1][8] - The Dow Jones Industrial Average (DJIA) dropped by 245.96 points, a decrease of 0.51%, closing at 48,458.05 points; the Nasdaq fell by 398.69 points, down 1.69%, closing at 23,195.17 points; the S&P 500 index decreased by 73.59 points, down 1.07%, closing at 6,827.41 points [3][10] - The recent downturn has led to a weekly decline for the S&P 500 and Nasdaq, with the former down 0.63% and the latter down 1.62%, while the DJIA saw a weekly increase of 1.05% [3][10] Company-Specific Developments - Broadcom's stock fell by 11.4%, attributed to concerns over profit margin compression despite announcing projected revenues of $64 billion for fiscal year 2025 and $73 billion in AI backlog orders [4][10] - Stocks related to AI, including Nvidia, AMD, Palantir Technologies, and Micron, also declined alongside Broadcom [4][10] - In contrast, stocks in the financial, healthcare, and industrial sectors saw gains, with Visa, Mastercard, UnitedHealth Group, and GE Aerospace performing well [4][10] Investor Sentiment - The market showed a rotation towards value stocks over growth stocks, with investors appearing cautious about AI investments [11][12] - Jed Ellerbroek from Argent Capital Management noted that while companies investing in AI have seen good returns, the market cannot sustain the same stocks outperforming indefinitely [12][13] Federal Reserve Insights - Anna Paulson, President of the Philadelphia Federal Reserve, indicated that there is room for further interest rate cuts, citing unemployment as a greater threat to the economy than inflation [6][13] - Paulson believes that current monetary policy is slightly tight and that if the labor market weakens, there will be more room for easing [6][13] - Conversely, Jeff Schmid, President of the Kansas City Federal Reserve, opposed the recent rate cut, arguing that inflation remains too high and the economy shows ongoing momentum [7][14]