Xin Lang Cai Jing·2026-02-25 23:45Market - US stock market closed higher for the second consecutive day, with AI concept stocks rising broadly. The Dow Jones, Nasdaq, and S&P 500 all increased. Nvidia and Salesforce are set to release earnings reports, leading investors to reassess tech stock valuations amid concerns about the sustainability of AI capital expenditures. Nvidia's stock rose, but its recent performance has been poor, raising market concerns about AI spending being unsustainable. Some investors believe current market fears are excessive [2][4][5] Company - Nvidia reported fourth-quarter earnings that exceeded expectations, with core data center revenue growing 75% year-over-year, becoming a major driver. Adjusted earnings per share and total revenue also surpassed expectations, with net profit nearly doubling. The company expects first-quarter revenue of $78 billion, significantly outperforming other large tech stocks this year [25][26] - Microsoft shares rose 2.98% despite facing an antitrust investigation by Japan for potential unfair competition in the cloud services market [55] - Salesforce's fourth-quarter revenue was $11.2 billion, a 12% year-over-year increase, marking the fastest growth in two years. However, the company's guidance for fiscal year 2027 indicates a growth of only 10%-11%, which is below Wall Street's expectations. Salesforce has allocated $50 billion for stock buybacks [31] - Samsung launched its Galaxy S26 series, with prices increasing by $100 for two models. The average smartphone price is expected to rise by 6.9% in 2026 due to a shortage of storage chips [22] - Ctrip reported a 60% year-over-year increase in international OTA bookings for Q4 2025, serving approximately 20 million inbound tourists throughout the year [29]