美股三大指数开盘涨跌不一，存储概念持续走强

Market Overview - The U.S. stock market opened mixed on February 3, with the Nasdaq up 0.34%, the Dow down 0.05%, and the S&P 500 up 0.15% [1] Company Earnings - PayPal reported Q4 net revenue of $8.7 billion, a 4% year-over-year increase, with GAAP net profit of $1.437 billion, up 28%, and GAAP earnings per share (EPS) of $1.53, up 38%. For the full year 2025, total revenue is projected to be $33.2 billion, a 4% increase, with GAAP net profit of $5.233 billion, up 26%, and GAAP EPS of $5.41, up 35% [2] - Pfizer announced Q4 revenue of $17.56 billion, with adjusted EPS of $0.66. The company forecasts 2026 full-year revenue between $59.5 billion and $62.5 billion, with adjusted EPS between $2.80 and $3.00 [3] - PepsiCo reported Q4 net revenue of $29.34 billion, a 5.6% year-over-year increase, with EPS of $1.85 compared to $1.11 in the same period last year. Core EPS was $2.26, up from $1.96 [4] - Merck disclosed Q4 net profit of $2.963 billion, a 21% year-over-year decrease, with global sales of $16.4 billion, up 5%. For 2025, global sales are projected at $65.011 billion, a 2% increase, with GAAP net profit of $18.254 billion, up 7%, and GAAP EPS of $6.74, up 8% [5] Industry Developments - Siemens Energy announced a $1 billion investment to expand domestic manufacturing capacity in the U.S., which includes multiple existing factory expansions to enhance transformer production and repair capabilities, as well as the establishment of a new factory in Mississippi for critical grid component production. This initiative is expected to create over 1,500 high-skilled jobs in manufacturing, operations, and engineering [6]