财联社·2026-01-02 23:37Market Overview - On the first trading day of 2026, US stock indices showed relatively calm closing fluctuations, with significant inflows into tech stocks and a collective surge in Chinese concept stocks, buoyed by a strong start in the Hong Kong market [1][3] - The S&P 500 index rose by 0.19% to 6858.47 points, the Nasdaq Composite fell by 0.03% to 23235.63 points, and the Dow Jones Industrial Average increased by 0.66% to 48382.39 points [1] Chinese Tech Stocks Performance - The Nasdaq China Golden Dragon Index surged by 4.38%, marking the largest single-day increase since May 12 of the previous year [3] - Notable Chinese tech stocks included Baidu, which rose by 15.03%, Alibaba up by 6.25%, Tencent ADR increasing by 5.23%, and Netease rising by 7.22% [3] AI Sector Developments - Investors are eagerly awaiting developments from DeepSeek, which recently published a paper on a new training method called "manifold constraint hyperconnection" (mHC), seen as a significant breakthrough [3] - This has led to speculation about the release of the next-generation flagship model from DeepSeek, reminiscent of past AI advancements [3] Performance of Major Tech Companies - Major tech companies had mixed performances, with Nvidia rising by 1.26% and Apple falling by 0.31%. Tesla experienced a decline for the seventh consecutive day [5] - The overall performance of tech giants was lackluster, with Microsoft down by 2.21% and Amazon down by 1.87% [5] Stock Movements in Various Sectors - Various thematic stocks saw significant trading activity, with Micron Technology up by 10.51% and Western Digital up by 8.96%, both reaching historical highs [6] - AI energy and storage concept stocks also performed well, with Bloom Energy rising by 13.58% and NuScale Power increasing by 15.17% [6] Electric Vehicle Market Update - Tesla reported Q4 delivery data that fell short of expectations, delivering 418,227 vehicles in the last quarter and losing its title as the global leader in electric vehicle sales to BYD, which sold 2.2567 million vehicles in 2025, a 27.86% increase from 2024 [7][8] Berkshire Hathaway Insights - Warren Buffett expressed confidence in Berkshire Hathaway's long-term prospects, suggesting a high likelihood of the company existing in a hundred years, with praise for his successor Greg Abel's capabilities [9] Retail Investor Performance - A report indicated that retail investors at Interactive Brokers achieved an average return of 19.2% in 2025, outperforming the S&P 500 index's return of 16.39% [9]