Group 1 - Broadcom shares fell over 5%, while Apple and Amazon rose over 1%, and Tesla increased by over 3%, adding $53.7 billion (approximately 378.6 billion RMB) to its market value [1] - Elon Musk's net worth reached $677 billion, making him the first person in history to surpass the $600 billion mark, previously no one had crossed $500 billion [3] - iRobot officially declared bankruptcy with a stock value of zero after finalizing its restructuring plan on December 15, resulting in a 72.69% drop in its shares [3] Group 2 - The Nasdaq Golden Dragon China Index fell by 2.17%, with major Chinese stocks declining; Baidu dropped nearly 5%, and Alibaba, Xpeng Motors, and others fell over 3% [5] - WTI crude oil futures decreased by 1.08% to $56.82 per barrel, while Brent crude oil futures fell by 0.92% to $60.56 per barrel [6] - Bitcoin fell below $86,000 for the first time in two weeks, dropping 3.3% to $85,578, approximately 30% down from its record high of over $126,000 [6][7] Group 3 - Over the past 24 hours, more than 190,000 traders were liquidated, resulting in a total loss of $670 million (approximately 4.7 billion RMB) [9] - The New York Federal Reserve's manufacturing index unexpectedly shrank to -3.9 in December, indicating a contraction in economic activity, significantly below the expected median of 10 [11][13] - Federal Reserve Governor Milan suggested that the current monetary policy is too tight and advocated for a faster pace of rate cuts, citing signs of a cooling labor market [13]

Group 1 - Broadcom's stock fell over 5%, while Apple and Amazon rose over 1%, and Tesla increased by over 3%, adding $53.7 billion (approximately 378.6 billion RMB) to its market value [1] - Elon Musk is on track to become the world's first trillionaire, with a net worth of $677 billion, making him the first person in history to surpass the $600 billion mark [1] Group 2 - Cryptocurrency mining and reserve concepts saw significant declines, with Hut8 dropping over 14%, Circle down over 9%, and Coinbase falling over 6% [4] - The automotive, precious metals, tourism, and weight loss drug sectors experienced gains, with Toyota and Eli Lilly rising over 3%, and Amgen, Pfizer, and Roche increasing over 2% [4] Group 3 - iRobot's stock plummeted by 72.69% following its bankruptcy restructuring plan, resulting in its stock value reaching zero [4] - The Nasdaq Golden Dragon China Index fell by 2.17%, with major Chinese stocks like Baidu down nearly 5% and Alibaba, XPeng, and Li Auto dropping over 3% [6] Group 4 - WTI crude oil futures fell by 1.08% to $56.82 per barrel, while Brent crude oil futures decreased by 0.92% to $60.56 per barrel [7] - Bitcoin dropped 3.3% to $85,578, marking its first decline below $86,000 in two weeks, and is down approximately 30% from its record high of over $126,000 [8] Group 5 - Over 190,000 traders faced liquidation, resulting in $670 million (approximately 4.7 billion RMB) lost in the past 24 hours [10] - U.S. economic data fell significantly short of expectations, with the New York Fed manufacturing price index at 19.8, down from a previous value of 24 [11]