智通财经网·2026-01-03 02:59Market Overview - The S&P 500 index rose slightly by 0.2%, with 8 out of 11 sectors gaining, led by energy and industrial sectors, while consumer discretionary, communication, and consumer staples sectors declined [1] - The Philadelphia Semiconductor Index surged by 4%, marking its largest single-day gain since November 24, driven by Asian chip manufacturers and AI-related stocks [1] - Nasdaq 100 index fell by 0.2% [1] Semiconductor Sector - Micron Technology (MU.US) and Sandisk (SNDK.US) led the S&P 500 index, with Micron closing up 11% at a record high and Sandisk soaring by 16% at one point [1] - AMD (AMD.US) stock rose by 4.3% ahead of the upcoming CES, where CEO Lisa Su is scheduled to speak [2] - Nvidia (NVDA.US) shares increased by 1.3%, with CEO Jensen Huang expected to focus on data centers, AI, and robotics at CES [2] Tesla Performance - Tesla (TSLA.US) shares dropped by 2.6%, marking the seventh consecutive day of decline, matching a historical record [3] - The company reported a disappointing 16% year-over-year decline in fourth-quarter delivery volume, which was worse than analysts' expectations of an 11% decline [3] - Tesla's own forecast indicated a more pessimistic outlook, predicting a 15% drop in delivery volume [3] Valuation Concerns - Bank of America strategist Savita Subramanian stated that the S&P 500 index is statistically overvalued, with 18 out of 20 indicators showing this trend [2] - Despite the higher quality and lower leverage of the current S&P 500 index, risks remain for 2026 [2] Market Sentiment and Risks - The S&P 500 index closed about 1% lower than its historical high set on December 24, ending the year with four consecutive days of decline [6] - JPMorgan strategist Michael Cembalest highlighted risks related to U.S. power generation, China's technological advancements, and the profitability of massive data center investments since 2022 [6]