Micron Technology (MU) ranked first by trading volume among U.S. stocks on Tuesday, closing down 3.62% on turnover of $27.092 billion. In the South Korean domestic market, SK Hynix (000660.KS) and Samsung Electronics (005930.KS) fell 10% and 7% respectively, with both companies recording declines for five consecutive trading sessions. The combined market capitalization of these two chip companies accounts for more than half of the total market value of the South Korean stock market. The market is concerned that the upward cycle for memory chip prices has peaked, expecting subsequent quotes to pull back and corporate profit growth to slow.

NVIDIA (NVDA) ranked fourth, closing up 0.97% on turnover of $18.861 billion. NVIDIA CEO Jensen Huang said on Tuesday at an event in Paris that the company plans to announce $2 billion in investment in Europe within the coming week.

Meta Platforms, Inc. (META) ranked fifth, closing up 2.63% on turnover of $17.188 billion. Meta launched its latest artificial intelligence model, Muse Wonder, calling it the most advanced option for powering digital assistants, though it is not offered for free. Users of the Muse personal agent application can choose to subscribe to plans costing $20 or $100 per month.

Apple (AAPL) ranked sixth, closing up 0.09% on turnover of $13.298 billion. Apple held a product launch event themed "Welcome Home," officially unveiling its first smart home hub, HomeView, along with new products including HomePod mini 2.

Microsoft (MSFT) ranked seventh, closing up 0.43% on turnover of $12.920 billion. SanDisk ranked eighth, closing down 0.34% on turnover of $11.906 billion. SpaceX ranked ninth, closing down 4.21% on turnover of $10.609 billion. SpaceX plans to significantly increase the number of Starship rocket launches and landings at its Starbase facility in southern Texas, expanding its annual flight scale to several hundred.

Advanced Micro Devices (AMD) ranked tenth, closing up 1.90% on turnover of $10.461 billion. Intel (INTC) ranked twelfth, closing up 1.44% on turnover of $8.576 billion. Alphabet (GOOGL) Class A shares ranked thirteenth, closing up 0.30% on turnover of $7.836 billion. Google launched a revamped in-car Google app store for vehicles equipped with Google's built-in system, adding multiple entertainment apps. YouTube rolled out a new feature allowing audio to continue playing after a vehicle switches from parked to driving mode.

Tesla Motors (TSLA) ranked fifteenth, closing down 0.74% on turnover of $6.823 billion. Musk disclosed his plans for the Terafab chip factory, saying Tesla and SpaceX aim to manufacture and test about 10 chip designs per year at Terafab's Giga Texas research facility in the U.S. state of Texas to accelerate the development process.

Amazon.com (AMZN) ranked sixteenth, closing down 0.37% on turnover of $6.449 billion. Broadcom (AVGO) ranked seventeenth, closing up 0.73% on turnover of $5.930 billion. On October 13, Broadcom CEO Hock Tan said at the DBS Asia Future Forward conference held in Singapore that many investors betting on the AI and chip sectors have investment strategies akin to casino gamblers, and some of them have no idea what they are actually betting on. Citing OpenAI as an example, Tan said OpenAI achieved $50 billion in annualized revenue in September, demonstrating that its business model is viable, but long-term profitability cannot be guaranteed.

Alphabet ranked eighteenth, closing up 0.16% on turnover of $4.993 billion. Applied Materials (AMAT) ranked nineteenth, closing down 6.69% on turnover of $4.953 billion. Gary Dickerson, CEO of U.S. semiconductor equipment maker Applied Materials, said the company expects revenue to double over the next several years, but headcount will not grow in tandem. The company is applying artificial intelligence to product development, quality control, and semiconductor manufacturing processes at customer sites to improve wafer yield and production efficiency. Dickerson said some businesses have seen productivity increase by about 50% with the help of AI, and the company will continue hiring in related areas.

Seagate Technology PLC (STX) ranked twentieth, closing down 0.80% on turnover of $4.936 billion. (Screenshot from Sina Finance APP Quotes - U.S. Stocks - Stock Market section, swipe left for more data) Download the Sina Finance APP