别高兴太早！美政府重开预期点燃市场，但三大风险逼近

Group 1 - The U.S. stock market experienced a significant rise due to optimism surrounding a potential agreement to end the longest government shutdown in U.S. history, with the S&P 500 index rising by 1.5% and the Nasdaq composite index increasing by 2.3%, marking the largest single-day percentage gain since mid-May [1] - Technology and communication services sectors saw substantial gains, with the information technology sector up by 2.7% and communication services up by 2.5% on the same day [1] - The reopening of the government is expected to reduce uncertainty in economic data and may pave the way for the Federal Reserve to implement its third interest rate cut of the year in December [1] Group 2 - Recent signs indicate that companies are adjusting their workforce sizes after a period of "labor hoarding" post-pandemic, which is viewed positively for corporate profits as long as large-scale layoffs do not occur [2] - Investors are preparing for a wave of delayed economic data releases, with concerns about the quality and interpretation of this data, particularly regarding potential widespread layoffs [3] Group 3 - Despite optimism from the government reopening, concerns about the high valuations of technology stocks remain, although recent sell-offs have made AI-related stocks more accessible to individual investors [4] - The market is beginning to recognize the high valuations of large tech companies, leading to a phase where AI stocks are expected to demonstrate tangible results from significant investments [5] - The overall sentiment for year-end market performance remains optimistic, contingent on the stability of the bond market and long-term interest rates [5]