巴菲特将正式退休；英伟达正与台积电洽谈新H200芯片订单；三大期指齐跌，美联储官员对货币政策预期分歧明显【美股盘前】

Market Overview - Major stock index futures declined, with Dow futures down 0.14%, S&P 500 futures down 0.28%, and Nasdaq futures down 0.41% [1] Technology Sector - Large tech stocks fell before the market opened, with Amazon down 0.27%, Apple down 0.34%, Google down 0.45%, Meta down 0.44%, and Microsoft down 0.15% [2] Automotive Industry - Tesla significantly reduced the prices of its electric vehicles in South Korea, with the highest price cut reaching 6,490 USD (approximately 9.4 million KRW). The price of the Model 3 high-performance all-wheel-drive version is now 59.99 million KRW, down from 69.39 million KRW. The prices of two Model Y variants were also reduced by about 3 million KRW. Tesla's stock fell by 0.25% [2] Semiconductor Industry - Nvidia is negotiating with TSMC for new orders of its H200 AI chips to meet strong customer demand. Nvidia has requested TSMC to start producing additional chips, expected to begin production in Q2 2026. Nvidia's stock decreased by 0.37% [2] Financial Sector - Citigroup is gradually exiting the Russian market and expects to incur a pre-tax loss of approximately 1.2 billion USD from the sale of its remaining business in Russia. The sale of Citibank's remaining Russian operations to Renaissance Capital is expected to be signed in the first half of 2026, pending regulatory approval [3] Media Industry - Warner Bros. plans to reject Paramount's acquisition proposal again, as the board has not made a final decision but will meet next week. One concern is that Paramount did not increase its offer, which Warner Bros. previously deemed inferior to Netflix's offer [3] Monetary Policy - The Federal Reserve's December meeting minutes revealed significant divisions among officials regarding the timing and extent of future interest rate cuts. The FOMC voted 9 to 3 to lower the federal funds rate by 25 basis points for the third consecutive time, bringing the target range to 3.5%–3.75% [4] Leadership Change - Warren Buffett will officially retire as CEO of Berkshire Hathaway on December 31, with his protégé Greg Abel set to take over on January 1 [5]