Shang Hai Zheng Quan Bao·2025-12-16 00:54Market Performance - On Monday, major U.S. stock indices collectively declined, with the Dow Jones down 0.09% at 48,416.56 points, the Nasdaq down 0.59% at 23,057.41 points, and the S&P 500 down 0.16% at 6,816.51 points [1][2]. Tesla Highlights - Tesla's stock rose over 3%, reaching a nearly one-year high, with a market value increase of over $53 billion in one night [1][4]. - CEO Elon Musk's net worth surpassed $600 billion, making him the first person in history to achieve this milestone [4]. iRobot Situation - iRobot's stock plummeted over 72% after the company filed for bankruptcy protection, planning to be taken over by its main Chinese supplier and manufacturer, leading to its delisting [1][5]. Chinese Stocks Performance - The Nasdaq Golden Dragon China Index fell by 2.17%, with notable declines in stocks such as Baidu (down nearly 5%) and Alibaba (down over 3%) [1][7]. Nasdaq Trading Mechanism - Nasdaq plans to submit a proposal to the SEC to introduce a near-around-the-clock trading mechanism, extending trading hours from 16 to 23 hours per week [1][14]. - The new trading schedule would include two trading periods: a daytime session starting at 4 AM and ending at 8 PM, and a night session from 9 PM to 4 AM [14][15].