美股震荡加剧！科技七巨头集体下跌 ，银行股遭财报与政策双重打击，白银狂飙破93美元创纪录，原油坐 "过山车"

Market Overview - The U.S. stock indices closed lower, with the Dow Jones Industrial Average down 0.09% at 49,149.63 points, the S&P 500 down 0.53% at 6,926.60 points, and the Nasdaq down 1.00% at 23,471.75 points [1][2]. Technology Sector - Major technology stocks experienced significant declines, with Microsoft, Amazon, and Meta among the "seven giants" all seeing price drops. Broadcom fell by 4.2%, Oracle by 4.3%, and other tech giants like Apple, Google, and Nvidia also dropped over 1%. Analysts attribute this to high valuations and lackluster earnings, prompting investors to take profits [3][4]. Banking Sector - Bank stocks continued their downward trend, with Wells Fargo down 4.6% and Citigroup and Bank of America down over 3%. Wells Fargo's Q4 earnings fell short of market expectations due to weak investment banking performance. Concerns were raised by JPMorgan executives regarding proposed credit card interest rate caps potentially harming consumer interests and overall financial sector profitability [5]. Chinese Stocks - Chinese stocks showed mixed performance, with Ctrip plunging 17.1% due to antitrust investigations, while Pinduoduo fell 3.9%. However, Bilibili saw a 6% increase, indicating a divergence in market expectations for different Chinese companies [5][6]. Economic Data - U.S. retail sales rose by 0.6% month-on-month in November, the highest since July, surpassing the expected 0.4%. Core retail sales, excluding automobiles, increased by 0.5%. The Producer Price Index (PPI) rose by 0.2% month-on-month and 3.0% year-on-year, indicating persistent inflationary pressures [9][14]. Commodity Market - Silver prices surged, with COMEX silver futures rising by 5.81% to $90.86 per ounce, briefly surpassing $93, marking a historical high. In contrast, gold prices saw a slight decline of 0.42% [10][12]. The silver market is experiencing a supply shortage, with expectations of a significant supply gap by 2025 due to production constraints and new export regulations from China [13]. Geopolitical Factors - The U.S. government announced a 25% import tariff on semiconductors and manufacturing equipment, citing national security concerns. This move is expected to increase costs for major U.S. chip companies like Nvidia, AMD, and Intel, which rely on overseas manufacturing [8]. Additionally, geopolitical tensions regarding Iran have created market uncertainty, although recent statements from U.S. officials have temporarily eased concerns [8][14].