Core Insights - Berkshire Hathaway made significant adjustments to its tech stock holdings in the last quarter under CEO Warren Buffett, notably reducing its stakes in Apple and Amazon while initiating a position in traditional media, The New York Times [1][5][8] Berkshire Hathaway Holdings - As of the end of Q4 2025, Berkshire's total portfolio value reached $274.1 billion, with the top ten holdings accounting for 88.26% of the portfolio [6] - The top ten holdings remained unchanged in terms of companies but saw slight ranking adjustments, including Apple, American Express, Bank of America, Coca-Cola, Chevron, Moody's, Occidental Petroleum, Swiss Re, Kraft Heinz, and Alphabet [1] Stock Reductions - Berkshire significantly reduced its stake in Amazon by 0.63 percentage points, dropping from 0.82% in Q3 2025 to 0.19% in Q4 2025, with the number of shares falling to approximately 2.3 million [6] - The company also sold over 10.29 million shares of Apple, reducing its holding by 4.3%, with the stock's portfolio share decreasing from 22.69% to 22.60% [6] - Bank of America saw a reduction of nearly 50% in shares held, decreasing from 1.03 billion shares to 517 million shares, with its portfolio share dropping to 10.38% [7] New Investments - The New York Times was the only new position added by Berkshire in Q4 2025, with an acquisition of 5.07 million shares valued at over $350 million, representing 0.13% of the portfolio [9] - Berkshire increased its holdings in Chevron by over 8.09 million shares, raising its portfolio share to 7.24%, and in Swiss Re by approximately 2.92 million shares, increasing its share to 3.90% [11] Other Notable Investors - Notable investor Duan Yongping also reduced his stake in Apple by 247.06 million shares, a decrease of 7.09% [2][12] - Duan significantly increased his investment in Nvidia by 663.93 million shares, marking a 1110.62% increase, making it his third-largest holding [12][13]

Core Insights - The article highlights the investment activities of Duan Yongping in Q4, focusing on significant increases in holdings of Nvidia and Berkshire Hathaway, while also noting a reduction in Apple shares [1][6]. Investment Activities - Duan Yongping increased his stake in Nvidia by 6.6393 million shares, marking a 1110.62% increase, bringing total holdings to 7.2371 million shares with a market value of $1.35 billion, making it the third-largest position in his portfolio at 7.72% [3]. - He also initiated positions in three new companies: CoreWeave, Credo Technology, and Tempus AI, which collectively account for approximately 0.28% of his portfolio [3][4][5]. - CoreWeave, which focuses on GPU rental for AI companies, was acquired with 299,900 shares, reflecting a strategic bet on the AI industry's demand for computational power [3]. - Credo Technology, providing high-speed interconnect chips, was added with 141,300 shares, indicating a focus on data center upgrades linked to AI server iterations [4]. - Tempus AI, which applies AI in precision medicine, was acquired with 110,000 shares, representing an investment in the vertical application of AI in healthcare [5]. Adjustments in Existing Holdings - Apple remains the largest holding with a market value of $8.797 billion, constituting 50.3% of the portfolio, but Duan Yongping reduced his stake by 2.4706 million shares, a decrease of 7.09% [7]. - Berkshire Hathaway saw a significant increase in holdings, with an addition of nearly 198,500 shares, a 38.24% increase, making it the second-largest position at 20.63% [7]. - Other adjustments included increased stakes in Google and Pinduoduo, while a substantial reduction of 87.63% was made in ASML, indicating a shift in outlook on various tech giants' growth potential [8].

Core Viewpoint - Berkshire Hathaway continues to adjust its technology holdings in the last quarter before Warren Buffett steps down as CEO, significantly reducing its stakes in several major stocks while initiating a position in traditional media, specifically The New York Times [2][4]. Group 1: Stock Adjustments - In Q4, Berkshire reduced its Amazon holdings by over 77%, with the stake dropping from 0.82% to 0.19% of its portfolio, amounting to approximately 2.3 million shares [9][10]. - Apple remains the largest holding in Berkshire's portfolio despite a reduction of over 10.29 million shares, decreasing its value by about $2.8 billion, with its portfolio share slightly declining from 22.69% to 22.60% [6][8]. - Berkshire sold nearly 50.8 million shares of Bank of America, reducing its stake by 8.9% to 6.89%, marking a 50% reduction from mid-2024 [9][10]. Group 2: New Investments - The New York Times was the only new position taken by Berkshire in Q4, with an acquisition of 5.067 million shares valued at approximately $352 million, representing about 3.1% of the company [12][14]. - The stock price of The New York Times has shown strong performance, increasing by 6% year-to-date and 50% over the past 12 months [14]. Group 3: Increased Holdings - Berkshire increased its stake in Chevron by over 8.09 million shares, raising its portfolio share to 7.24% and increasing its value by approximately $1.23 billion [18]. - The company also raised its holdings in Chubb by nearly 2.92 million shares, increasing its portfolio share from 3.31% to 3.90% [17]. Group 4: Top Holdings - As of Q4, Berkshire's top ten holdings remained largely unchanged, with Apple, American Express, and Bank of America retaining their positions, while Chevron and Chubb saw increases in their rankings [21][25].

数据显示，段永平Q4共增持了六只股票，其中增持幅度最大的是英伟达，增持幅度第二大的股票是伯克希尔哈撒韦；同时，段永平也减持 了五只股票，减持幅度最大的是苹果。 | | | | % of | | Reported | % difference | | % (shares) | % change to | | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | | History | Ticker = Stock = | | Portfolio = | Shares* = | Price® @ | Current Price @ | Value @ | Activity = | Portfolio = | | P | BABA | ALIBABA GROUP HOLDING-SP ... | 2.15% | 2.560.500 | $146.58 | | $375,318,090 | -7.81% (-216.830) | -0.18% | | 1 | GOOG | ALPHABET INC-CL C | 3.33% | 1,855,400 | ...

Group 1 - Berkshire Hathaway made significant adjustments to its technology stock holdings in the last quarter before Warren Buffett stepped down as CEO, notably reducing its positions in Apple and Amazon [1] - The New York Times was the only new stock added to Berkshire's portfolio in the fourth quarter, with a purchase of 5.067 million shares [1] - Notable investor Duan Yongping also reduced his Apple holdings in the fourth quarter, selling 2.4706 million shares, representing a decrease of 7.09% [1] Group 2 - Duan Yongping appears to be making a substantial bet on AI, having significantly increased his holdings in NVIDIA by 6.6393 million shares in the fourth quarter and also initiating positions in three new AI-related companies [1]

来源：环球网 【环球网科技综合报道】2月18日消息，据macworld援引彭博社报道称，苹果公司正全力推进三款新型 人工智能驱动的可穿戴设备研发，包括一款高端智能眼镜、一款AI吊坠配件，以及配备红外摄像头和 隔空手势功能的新一代AirPods。这些设备均需与iPhone配对使用，旨在将iPhone的感知与交互能力延伸 至用户日常生活的更多场景。 其中，智能眼镜被列为苹果当前可穿戴硬件的优先项目。不同于Vision Pro的沉浸式头显定位，这款眼 镜更接近Meta推出的AI眼镜产品形态，但聚焦于高品质设计与先进摄像头功能。设备将搭载高分辨率 摄像头，用于拍摄照片与视频，并配备专用环境感知摄像头、麦克风和扬声器，支持通话、Siri语音交 互、音乐播放及情境化操作。 据古尔曼透露，苹果正在开发多项差异化功能，包括实时文本识别与数字化、基于位置的情境提醒（例 如在超市自动提示购物清单物品），以及结合地标信息的增强型导航体验。为凸显其高端定位，该眼镜 将采用优质材料，包括提升质感的亚克力组件。尽管曾考虑与传统眼镜制造商合作，苹果最终决定自主 完成整机设计。目前项目已取得"重大进展"，预计2026年底前投入量产，2027 ...

Group 1 - Berkshire Hathaway significantly reduced its holdings in Apple and Amazon in the fourth quarter of 2025, with a 77% reduction in Amazon and a sale of over 10.29 million shares of Apple, decreasing its stake from 22.69% to 22.60% [4][5][6] - The fourth quarter marked the last 13F filing under Warren Buffett's leadership, as Greg Abel officially took over as CEO on January 1, 2026 [4][6] - Despite the reductions, Apple remains Berkshire's largest holding, while Amazon's shares fell to approximately 2.3 million, representing a drastic decline in ownership [6][7] Group 2 - Notable investor Duan Yongping also reduced his Apple holdings by 247.06 million shares, a decrease of 7.09%, while significantly increasing his investment in Nvidia by 663.93 million shares, marking a 1110.62% increase [8][9] - Duan's investment strategy appears to focus on AI, as he also initiated positions in three AI-related companies: CoreWeave, Credo, and Tempus [9][10] - Duan increased his stake in Berkshire Hathaway by 198.5 million shares, a rise of 38.24%, making it his second-largest holding [9][10]

Group 1 - Meta Platforms is expanding its partnership with NVIDIA by purchasing billions of dollars worth of chips and hardware to enhance its AI capabilities, planning to use millions of NVIDIA Blackwell and Rubin GPUs, as well as Grace and Vera CPUs for data center construction [2] - This collaboration is part of Meta's initiative to rapidly scale its AI data center infrastructure, with NVIDIA assisting in improving WhatsApp's services and jointly designing Meta's next-generation AI models [2] Group 2 - Yushun Technology showcased two humanoid robots equipped with Hesai's JT128 LiDAR at the Spring Festival Gala, highlighting the collaboration between Yushun's AI positioning algorithms and Hesai's LiDAR technology [3] - Hesai's JT series LiDAR has delivered over 200,000 units and is currently the best-selling mini 360° LiDAR for humanoid robots [3] Group 3 - Apple is accelerating the development of three new wearable devices, including smart glasses and a pendant, as part of its strategy to transition to AI-driven hardware, with a focus on integrating Siri digital assistant functionalities [3] - Each device will connect with Apple's iPhone and utilize a diverse camera system to enhance user interaction [3] Group 4 - Tesla is recruiting AI chip design engineers in South Korea, as announced by CEO Elon Musk, indicating the company's focus on expanding its AI capabilities in the region [4]

（原标题：苹果(AAPL.US)被曝："AI三件套"要来了） 知名苹果爆料人马克·古尔曼发文表示，苹果(AAPL.US)正在加快开发三款全新的可穿戴设备，作为其 向人工智能驱动硬件转型的一部分——这一新赛道同样吸引了OpenAI、Meta等公司的积极布局。 古尔曼援引知情人士的话称，苹果正在推进三类产品：智能眼镜、可夹在衣服上或当作项链佩戴的吊坠 设备，以及具备更强人工智能功能的AirPods。 三款设备都将围绕Siri数字助手打造，并依靠"视觉情境感知"来执行操作。古尔曼补充称，这些产品都 将与iPhone连接，并配备不同能力的摄像头系统。 其中，AirPods和吊坠的设计理念是较简洁的产品，配备低分辨率摄像头，主要用于辅助AI，而非拍照 或录像；眼镜的定位较为高端、功能也更为丰富。 在本月早些时候的全员大会上，库克暗示公司将大举进军AI设备领域，他称苹果正在研发由人工智能 赋能的全新"产品类别"，"我们对此非常兴奋"。 根据古尔曼的描述，苹果早期原型机通过线缆连接外置电池和 iPhone，但新版已将组件嵌入镜框，并 采用亚克力等高端材料提升质感。 该设备将配备两颗摄像头：一颗用于高分辨率成像，另一颗用于计 ...

"股神" 巴菲特退休前最后一次操作备受全球投资者关注。 当地时间2月17日美股盘后，伯克希尔・哈撒韦向美国证券交易委员会（SEC）提交了2025年第四季度13F持仓报告，这也是巴菲特担任公司CEO期间的最 后一份季度持仓报告。 报告显示，2025年第四季度，伯克希尔大幅减持亚马逊，同时继续减持苹果等股票；同时新建仓纽约时报，该股也是巴菲特在该季度唯一一只新进个股。 2025年底，巴菲特正式退休，从伯克希尔CEO岗位上卸任。 减持亚马逊与苹果等股票 根据伯克希尔提交的报告，截至2025年12月底，伯克希尔最新持仓市值达2741亿美元，其中，前十大持仓公司市值占比高达88.26%。 从持仓动向来看，伯克希尔2025年第四季度大幅减持亚马逊股票。从持仓占比变动来看，该股是伯克希尔当季度减持幅度最大的个股，在投资组合中的占 比从2025年三季度的0.82%大幅降至0.19%，降幅达0.63个百分点，持股数量降至约230万股。 新建仓纽约时报 纽约时报是伯克希尔2025年四季度唯一新进的个股。 报告显示，当季度，伯克希尔建仓纽约时报超过506万股，市值约3.52亿美元。 在伯克希尔持仓情况披露后，纽约时报在盘后交易中股 ...