美联储降息刺激乐观情绪，美股基金三周来首现回流，但AI板块冷遇

Group 1: U.S. Stock Funds - U.S. stock funds experienced a turnaround with a net inflow of $3.3 billion for the week ending December 10, recovering nearly the $3.52 billion net outflow from the previous week [1] - Sector-wise, U.S. equity sector funds saw a net inflow of $2.81 billion, marking the largest single-week inflow since late October [1] - The metals and mining, industrials, and healthcare sectors performed notably well, attracting net inflows of $672 million, $548 million, and $527 million respectively [1] Group 2: Artificial Intelligence Sector - Despite the overall positive sentiment driven by interest rate cut expectations, investment interest in the artificial intelligence sector has cooled [1] - Oracle's latest earnings guidance fell short of expectations, heightening concerns about the slowing profit growth of AI companies [1] - This indicates that investors are becoming more cautious in evaluating high-valuation tech stocks amidst the easing expectations, shifting focus towards traditional sectors that benefit from the economic cycle and lower interest rates [1] Group 3: Bond Funds - The bond market also saw significant uplift due to interest rate cut expectations, with U.S. bond funds recording a net inflow of $3.49 billion, a substantial increase from the previous week's $291 million [2] - There was a structural shift in fund allocation, with intermediate and short-term investment-grade bond funds receiving a net inflow of $2.61 billion, reaching a seven-week high [2] - Conversely, general domestic taxable fixed income funds experienced a net outflow of $902 million [2] Group 4: Money Market Funds - The money market showed a clear sign of fund redirection, with a net outflow of $4.58 billion after a strong inflow of $105.03 billion the previous week [2] - This shift reflects a typical asset allocation adjustment logic during a monetary policy easing cycle, as investors move funds from low-yield cash assets to riskier assets like stocks and bonds [2]