今夜！跳水了！

Group 1 - The US stock market experienced a slight decline on December 31, with the Dow Jones dropping nearly 200 points and the Nasdaq falling approximately 0.4% [2] - Chinese concept stocks saw a more significant drop, with the index declining by 1.4% [4] - Notable declines were observed in electric vehicle manufacturers, with NIO falling nearly 10% and other companies like Xpeng and Li Auto also experiencing significant losses [5][6] Group 2 - The anticipated year-end rally in the US stock market, often referred to as the "Santa Rally," has not materialized, attributed to traders delaying major decisions during the holiday season [9] - Despite a strong performance in 2023 driven by optimism around artificial intelligence, market volatility remains high due to concerns over trade policies and geopolitical tensions [9] - Analysts expect the S&P 500 index to achieve double-digit growth in 2026, but there are concerns about prolonged market fluctuations until corporate earnings catch up with high valuations [10]