证券时报·2025-09-16 00:08Core Viewpoint - The U.S. stock market experienced a broad rally, with major indices closing higher and significant movements in technology stocks, particularly Alphabet, which reached a market capitalization of over $3 trillion [2][4]. Market Performance - On September 15, the three major U.S. indices closed higher: the Dow Jones increased by 0.11%, the S&P 500 rose by 0.47%, and the Nasdaq gained 0.94%, with both the S&P 500 and Nasdaq reaching new closing highs [2][4]. - The S&P 500 saw six sectors decline while five sectors advanced, with consumer staples and healthcare leading the declines, and communication services and consumer discretionary leading the gains [4]. Technology Sector Highlights - Alphabet's stock rose by 4.5%, bringing its market value to $3.04 trillion, making it the fourth U.S. company to surpass the $3 trillion mark, following Apple, Microsoft, and Nvidia [4]. - The surge in Alphabet's stock is attributed to the popularity of its Gemini application, which became the most downloaded free app in multiple countries [4][5]. - Tesla's stock increased by 3.56%, following CEO Elon Musk's significant purchase of approximately $1 billion worth of shares, marking his largest purchase to date [5]. Chinese Stocks Performance - The Nasdaq Golden Dragon China Index rose by 0.87%, with notable gains in several Chinese companies, including Li Auto, Bilibili, and NIO, which saw increases of nearly 7%, over 6%, and over 4% respectively [5]. Federal Reserve Expectations - Market expectations are high for the Federal Reserve to announce a new round of interest rate cuts during its upcoming meeting, with President Trump predicting a "significant rate cut" [7].