标普与纳指，又创新高

Group 1 - The core viewpoint of the article highlights the mixed performance of major indices, with the Nasdaq and S&P 500 reaching new highs, driven by strong demand for artificial intelligence as indicated by Alphabet's earnings report [1] - The U.S. job market shows resilience, with initial jobless claims declining for six consecutive weeks, the longest decline since 2022, which may influence the Federal Reserve's decisions in the upcoming meeting [1][2] - Optimism in the market is bolstered by hopes for a trade agreement between the EU and the U.S., despite the EU's recent vote to impose counter-tariffs on U.S. products worth €93 billion [1] Group 2 - Alphabet's second-quarter revenue and profit exceeded expectations, and the company plans to increase capital investments by $10 billion to $85 billion by 2025, reflecting strong and growing demand for its cloud products and services [4] - Major tech stocks generally rose, with Nvidia and Amazon both up 1.73%, while Tesla's stock fell 8.2% due to warnings from CEO Elon Musk about upcoming challenges due to reduced government support for electric vehicle manufacturers [4][5] - UnitedHealth's stock dropped 4.8% amid an investigation by the U.S. Department of Justice into its health insurance business, and American Airlines' stock fell nearly 10% due to anticipated significant losses in the third quarter from weak domestic travel demand [5]