昨夜，大涨！市值超3万亿美元公司，第4家！

Market Performance - On September 15, US stock markets saw collective gains, with the Dow Jones up 0.11%, S&P 500 up 0.47%, and Nasdaq up 0.94, marking new closing highs for S&P 500 and Nasdaq [1][2] - The S&P 500 index had six sectors declining and five gaining, with consumer staples and healthcare leading the declines at 1.15% and 1.01%, while communication services and consumer discretionary sectors led the gains at 2.33% and 1.10% respectively [2] Technology Sector Highlights - Major tech stocks generally rose, with Alphabet (Google's parent company) increasing by 4.5%, reaching a market capitalization of $3.04 trillion, making it the fourth US company to surpass the $3 trillion mark after Apple, Microsoft, and Nvidia [2][3] - 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, surpassing ChatGPT [2][3] Tesla Developments - Tesla's stock rose by 3.56%, following CEO Elon Musk's purchase of approximately 2.57 million shares for around $1 billion, with prices ranging from $371.9 to $396.359 per share [3] - This purchase is noted as Musk's largest ever, with the last significant purchase occurring in February 2020 [3] Chinese Stocks Performance - The Nasdaq Golden Dragon China Index increased by 0.87%, with notable gains from companies such as Li Auto (up nearly 7%), Bilibili (up over 6%), and NIO (up over 4%) [3] Federal Reserve Expectations - The Federal Reserve is set to hold a monetary policy meeting on September 16-17, with widespread market expectations for a new round of interest rate cuts [5]