英伟达反击"大空头"言论；百度新设两大AI部门。 DeepSeek开源首个奥数金牌水平的模型 11月27日晚，DeepSeek悄悄地在Hugging Face 上开源了一个新模型：DeepSeek-Math-V2。这是一个数学 方面的模型，也是目前行业首个达到IMO（国际奥林匹克数学竞赛）金牌水平且开源的模型。在同步发 布的技术论文中，DeepSeek表示，Math-V2的部分性能优于谷歌旗下的Gemini DeepThink，并展示了模 型在IMO-ProofBench基准以及近期数学竞赛上的表现。 点评:行业头部厂商的模型已经又迭代了一轮，11月，先是OpenAI发布了GPT-5.1，几天后xAI发布Grok 4.1，就在上周谷歌发布了Gemini 3系列引爆AI圈，"也该轮到DeepSeek出牌了"。不过，更受外界关注的 仍然是，DeepSeek的旗舰模型到底什么时候更新，行业期待"鲸鱼"的下一个动作。 前OpenAI 联创：AI规模扩展时代已终结 11 月 26 日，Safe Superintelligence（SSI）CEO伊利亚·苏茨克维（Ilya Sutskever）访谈在AI圈刷屏，这 次访谈 ...

Core Insights - The article discusses the potential overvaluation of tech companies, particularly in the AI sector, due to inflated earnings resulting from underestimated depreciation expenses [1][2][3] Group 1: AI Investment and Valuation - AI has driven significant investments in data centers and chips, leading to increased valuations for tech companies [1] - Companies may be overestimating the useful life of chips, which could inflate earnings and valuations [2][3] - Nvidia, as a leading chipmaker, has a high trailing price-to-earnings ratio of 45, but a more modest forward price-to-earnings ratio of 23, indicating potential valuation concerns [4] Group 2: Earnings and Depreciation - Lower depreciation costs can result from longer useful life estimates, which may incentivize companies to overestimate asset longevity [3] - If earnings are overstated, it suggests that stock valuations are even higher than they appear, raising concerns for investors [4][9] Group 3: Market Dynamics and Future Implications - Nvidia reported $57 billion in sales for the period ending October 26, a 62% year-over-year increase, indicating strong demand [5] - If chips have a shorter useful life than claimed, companies may face more frequent capital expenditures, impacting their financial strategies [6][7] - Concerns are growing that excessive investment in AI could lead to a bubble, particularly if companies are not achieving expected returns [8][9] Group 4: Investment Strategy Considerations - Investors may need to reassess their exposure to AI stocks, especially if there are signs of declining demand in the sector [9][10] - Long-term investors might still find value in established companies like Nvidia, while others may consider diversifying into ETFs or S&P 500 indexes to mitigate risk [10]

Core Insights - Retail investors have shown significant interest in five stocks this week, driven by earnings reports, retail hype, AI developments, and corporate news [1] Walmart Inc. (NYSE:WMT) - Walmart's Black Friday event commenced online on November 25, with early access for Walmart+ members starting on November 24, featuring substantial discounts on various products [6] - The stock is trading around $109 to $111 per share, reflecting a year-to-date increase of 21.22% and a 17.95% rise over the year [7] Alibaba Group Holding Ltd. (NYSE:BABA) - Alibaba reported second-quarter results on November 25, with a revenue increase of 5% to $34.81 billion, driven by a 34% growth in cloud services [7] - Following news of the Pentagon considering adding Alibaba to a list of Chinese military-linked firms, some retail investors began to sell off BABA shares [7] Alphabet Inc. (NASDAQ:GOOG) - GOOG shares surged due to AI-driven growth, with the company approaching a historic $4 trillion valuation [11] - The stock is trading around $157 to $160 per share, with an 85.52% increase year-to-date and an 80.38% rise over the year [11] Meta Platforms Inc. (NASDAQ:META) - META shares rebounded amid optimism surrounding AI trading and analyst upgrades, despite facing allegations regarding internal research on social media's impact on youth [15] - The stock is trading around $633 to $635 per share, with a year-to-date increase of 5.74% and a 10.32% rise over the year [16] Nvidia Corp. (NASDAQ:NVDA) - NVDA shares initially dipped due to reports of Meta's potential multi-billion-dollar deal with Google for data centers, but the CEO asserted that NVIDIA remains ahead in technology [16] - The stock is trading around $320 to $322 per share, reflecting a year-to-date increase of 68.01% and an 87.86% rise over the year [16] Market Overview - Retail focus has combined meme-driven narratives with earnings outlooks and corporate news, contributing to positive market action in the S&P 500, Dow Jones, and Nasdaq [19]

Core Viewpoint - Nvidia has shown significant long-term growth, with a 1,200% increase over the past five years, but has faced volatility in 2025 due to external factors like tariffs and concerns over an AI bubble [2][3]. Group 1: Nvidia's Market Position - Nvidia is a leader in designing high-performance graphics processing units (GPUs), essential for AI training and applications, having entered the market early and maintained a competitive edge through continuous innovation [4]. - The company has experienced explosive earnings growth, with annual revenue and profit increasing in double- and triple-digit percentages, surpassing analysts' expectations in recent quarters [5]. Group 2: External Challenges - Investor sentiment has been affected by concerns regarding tariffs, economic growth, and the valuation of AI stocks, which has led to fluctuations in Nvidia's stock price despite strong earnings reports [6]. Group 3: Future Outlook - Nvidia's CEO, Jensen Huang, predicts that AI infrastructure spending could reach between $3 trillion and $4 trillion by the end of the decade, indicating a substantial market opportunity [8]. - Major customers like Amazon and Microsoft have reported increasing demand and plans to expand capacity, suggesting a growing need for Nvidia's GPUs [9]. - With reasonable valuation at 38x forward earnings estimates, Nvidia is positioned to potentially return to investors' "buy list," making it a strong candidate for growth in 2026 [10].

Group 1 - The ongoing AI boom is drawing parallels to the dot-com bubble, particularly with Nvidia being compared to Cisco during that era [1][2][6] - Cisco's stock took a significant hit when the dot-com bubble burst, and it took 25 years for the stock to recover to its 2000 peak, raising concerns about a potential AI bubble [2] - The emergence of numerous AI startups is generating excitement but also concern among investors, reminiscent of the startup surge during the dot-com bubble [3][4] Group 2 - High-profile tech visionaries are leaving established companies to start their own AI ventures, indicating a strong belief in the potential of AI [5][6] - The rapid growth of AI startups may lead to challenges in talent retention for larger tech firms [6]

NVIDIA Corporation (NASDAQ:NVDA) is one of the stocks Jim Cramer recently talked about. Cramer explained why he “won’t give up” on the stock, as he commented: “On this news, NVIDIA stock has had the living daylights kicked out of it. Alphabet had been a huge client of NVIDIA, and the press clips say that it’s going to adopt its own chips far more than the ones owned by NVIDIA. Alphabet stock has been as hot as NVIDIA stock is now ice cold. It got colder last night when a tech publication reported that Met ...

Net cash from operating activities for the quarter came in at $23.8 billion, higher than the prior year's figure of $17.6 billion. Overall, Nvidia closed the quarter with a cash balance of $60.6 billion, dwarfing its short-term debt levels of $999 million.The trend continued in the most recent quarter as well. In Q3 FY26, Nvidia reported revenues of $57 billion, up 62% from the previous year, as the core data center revenue went up by 66% in the same period to $51.2 billion. Earnings went up by an even shar ...

One of Nvidia’s biggest customers has emerged as its fiercest competitor yet. But Jensen Huang, Nvidia’s boss, does not seem especially worried https://t.co/MbnswGCBMk ...

硬·AI 作者 | 高智谋 一方面，英伟达依然凭借Blackwell维持着技术和市场份额的绝对领先；但另一方面，谷歌TPU的全面商业化，让英伟达看似牢不可破的定价权，正在发生松动。 据半导体行业研究机构SemiAnalysis测算，OpenAI仅凭"威胁购买TPU"这一筹码，就迫使英伟达生态链做出了实质性让步，使其计算集群的总拥有成本（TCO） 下降了约30%。 随着Anthropic高达1GW的TPU采购细节曝光，谷歌正式撕下了"云服务商"的面具，转型为一家直接向外部出售高性能芯片与系统的"商用芯片供应商"。 当OpenAI可以用"威胁购买TPU"来换取30%的折扣，当Anthropic可以用TPU训练出超越GPT-4的模型，当谷歌愿意开放软件生态并提供金融杠杆时，英伟达高达 75%的毛利率神话便不再牢不可破。 对于英伟达来说，那个曾经最大的客户，现在变成了最懂的对手。 ( 图表：每百万输入和输出代币的成本 ) 01 谷歌"主动出击" 编辑 | 硬 AI 对于英伟达来说，那个曾经最大的客户，现在变成了最懂的对手。当OpenAI可以用"威胁购买TPU"来换取30%的折扣，当Anthropic可以用TPU训练出 ...

Alphabet Inc. (NASDAQ: GOOG) shares climbed 2.1% on Friday, November 28, 2025, as retail sentiment surged to 64 (bullish) while NVIDIA Corporation (NASDAQ: NVDA) sentiment dropped to 33 (bearish). ...