美股高开低走，微软、Meta大涨

Market Overview - On July 31, U.S. stock markets opened high but closed lower, with all three major indices declining despite strong earnings from Microsoft and Meta [2] - The Dow Jones Industrial Average fell by 330.30 points, a decrease of 0.74%, closing at 44,130.98 points; the S&P 500 dropped by 23.51 points, down 0.37%, at 6,339.39 points; and the Nasdaq Composite decreased by 7.23 points, down 0.03%, closing at 21,122.45 points [2] - In July, the S&P 500 rose by 2.17%, the Nasdaq increased by 3.70%, and the Dow saw a slight increase of 0.08% [2] Sector Performance - Most sectors in the S&P 500 closed lower, with the healthcare sector leading the decline at 2.9%; the real estate sector fell by 1.7%, and materials, financials, energy, consumer discretionary, and technology sectors all dropped over 1% [2] Company Earnings - Microsoft shares rose by 3.9%, with Q4 revenue reported at $76.44 billion, exceeding market expectations of $73.89 billion; Azure business revenue grew by 39%, and the company entered the "four trillion dollar club" [3] - Meta's stock surged by 11.2%, with Q3 revenue expected between $47.5 billion and $50.5 billion, significantly above analyst estimates of $46.2 billion, indicating a recovery in generative AI advertising [4] - Apple reported Q3 revenue of $94.04 billion, a 10% year-over-year increase, surpassing expectations of $89.53 billion; iPhone revenue was $44.58 billion, and Mac revenue was $8.05 billion, both exceeding forecasts [4] - Amazon's Q2 revenue reached $167.7 billion, a 13% year-over-year increase, significantly above the expected $162.09 billion; however, its stock fell approximately 6.8% in after-hours trading [4] Economic Indicators - The U.S. June core Personal Consumption Expenditures (PCE) price index rose by 2.8%, above the expected 2.7%; overall PCE increased to 2.6%, marking the second consecutive month of growth [5] - Labor cost index rose by 0.9%, and initial jobless claims were at 218,000, slightly below expectations [5] - Market attention is focused on the upcoming July non-farm payroll report and the deadline for tariff negotiations [5] Commodity Market - WTI September crude oil futures fell by $0.74, a decrease of approximately 1.06%, closing at $69.26 per barrel, ending a streak of increases [5] - Despite the drop, WTI saw a cumulative increase of over 8.47% in July, marking one of the strongest months of the year [5]