Fears of AI bubble burst, investors rush for exit routes

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• The Stock Market Has Seen This Happen Only 2 Other Times in Over 150 Years, and History Has an Ominous Warning for Investors

  The bull market is entering its fifth year, with the S&P 500 up nearly 120% over four years on the AI boom, but gains are narrow and over a quarter of index stocks are down 40% or more from their highs. Investors Michael Burry and Ray Dalio warn of an AI bubble, and the CAPE ratio above 40 is its second-highest level ever; the only earlier readings above 32, in 1929 and during the dot-com bubble, were followed by major corrections. The article argues that selling to wait is usually a mistake, citing Hartford Funds data that 76% of the best market days occur in bear markets or the first two months of bull markets, and Peter Lynch's view that staying invested matters more than timing. Lynch's example: investing $2,000 every year in the S&P 500 from 1965 to 1995 returned 11% annually, versus 10.6% when buying at each year's peak. It recommends steady dollar-cost averaging into an index ETF such as the Vanguard S&P 500 ETF (VOO) rather than trying to time a crash.

  Yahoo Finance·16/10, 17:50▼ QQQ▼ SPY▼ NVDASPYQQQNVDA
• Ken Griffin: There Are “Almost Certainly Bubbles” in AI Right Now

  Citadel founder and CEO Ken Griffin said on October 20, 2026, at the firm's Future of Global Markets Conference in New York that investors are 'almost certainly' in an AI bubble. He argued that radical economic change is generally tied to bubbles, and that the companies that survive become market leaders for decades. He also warned that corporate America has been uneven in extracting value from AI models, and said agentic tools cut some Citadel research from 6-8 weeks to 2-3 hours. NVIDIA ended at $216.47 and QQQ slid 0.10%, a muted market reaction.

  Yahoo Finance·21/10, 12:28▼ NVDA▼ QQQNVDAQQQartificial intelligence
• SpaceX Earnings Reignite AI Optimism on Wall Street Pre-Bell; Asia Mixed, Europe UpYahoo Finance·21/10, 11:15▲ QQQ▲ SPY▲ NVDASpaceXWall Streetartificial intelligence
• US futures dip as AI sell - off returns and oil prices rise sharplyfortmorgantimes.com·20/10, 13:45▼ QQQ▼ SPY▼ NVDAQQQSPYNVDA
• Chip stocks decline as AI-trade rebound fizzles

  Chip stocks fell on Tuesday after rebounding from a recent sell-off, as sentiment around the AI trade remained shaky. The PHLX Semiconductor Index, which rose more than 1.5% on Monday, was set to open lower, with Nvidia down nearly 1% and AMD down 2%. Intel shares sank more than 2%, giving back Monday's gains after JPMorgan upgraded the stock to Buy. Renewed AI concerns followed a disappointing market debut by South Korean neocloud provider Elice, while CoreWeave, Taiwan Semiconductor, Arm, Micron and SK Hynix were also poised to decline.

  Yahoo Finance·20/10, 13:04▼ NVDA▼ QQQ• SPYNVDAQQQsemiconductors
• AI stocks lead rebound on Wall Street as European markets drop

  AI stocks recovered part of last week's steep losses on Wall Street on Monday, with the S&P 500 up 0.9% after its worst week since June and the Nasdaq up 1.7% on technology strength. Most U.S. stocks outside AI and tech were falling, while the Dow gained a modest 0.2%, or 111 points, as of 11:30 a.m. Eastern. European indexes dropped more than 1%, with Paris down 1.5%, after violent weekend protests that could push governments to boost spending and pressure bond markets. The 10-year Treasury yield rose to 5.12% from 5.09%, while Brent crude fell 1.4% to $108.35 a barrel. Cleveland-Cliffs jumped 15.1% after reporting a bigger-than-expected quarterly profit.

  twincities.com·19/10, 16:00▲ QQQ▲ SPY▲ NVDANVDAQQQartificial intelligence

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• SpaceX Just Reported a 161% Jump in Quarterly Revenue. Wall Street Analysts Were Off by $1.6 Billion as Stock Soars 9%

  SpaceX reported third-quarter revenue of $14.6 billion, up 161% year-over-year and above the $13.02 billion consensus. Its Super Intelligence business, which leases AI computing power and sells Grok products and Cursor, generated $7.6 billion, up 830%, while Connectivity revenue rose 69% to $5.2 billion with 13.6 million consumer subscribers. The company posted $2.8 billion in operating income and $4.4 billion in net income versus a $1.1 billion net loss a year earlier, though capital spending reached $19.6 billion and is expected to be $35 billion to $40 billion in the fourth quarter, and some margin benefit came from one-time tariff refunds. Elon Musk said a combination with Tesla 'would be a good idea', but the special committees have not agreed on any terms, and SpaceX guided first-quarter 2027 revenue to $33 billion to $37 billion. Shares rose 9.4% to $161.64 in early trading.

  Yahoo Finance·21/10, 14:42• TSLASpaceXearningsElon Musk
• New energy shock hits Germany

  Producer prices for refined petroleum products in Germany rose 51.3% year on year in September, according to Destatis, with heating oil up 91.8% and motor fuel up 48.6%. Overall producer prices climbed 6.7%, the steepest rise since March 2023, while Germany's crude oil import costs rose 21.7% to €30 billion in the first eight months of 2026. Destatis attributed the increase to higher crude prices amid the Middle East conflict; the report also cites disruption in the Strait of Hormuz and Brent topping $111 a barrel on October 20. Germany has faced higher costs since halting Russian gas imports, and Berlin reportedly spent about €50 billion to cushion the impact. Meanwhile, corporate insolvencies in the first half of 2026 reached their highest level in 13 years.

  CafeF·21/10, 14:34▼ EUR/USD▲ DXYoil pricesGermanygeopolitics
• AI's billion-dollar question: When will the spending pay off?

  Speakers in this discussion argue AI infrastructure spending faces a timing gap, since months can pass between when computing hardware ships and when it starts earning revenue, leaving a large amount of capital tied up. As an example, a buyer of $10 million in Nvidia chips may need six months to get them running while that money sits on its balance sheet. They also point to a wider gap between total AI spending and the revenue it generates, and note that some reports suggest the size of returns may depend on technological innovation. Easing supply chain bottlenecks, they say, would help companies bring computing capacity online faster.

  Yahoo Finance·21/10, 14:33• NVDANVDAAI investmentartificial intelligence
• Here's how Meta's earnings could end up being a recipe for disaster

  Meta's earnings report tonight is closely watched because it sits at the intersection of the AI spending story and the advertising business that funds it. Investors want to know whether AI is helping advertisers reach customers and generate enough extra revenue to justify the infrastructure investment, and how much more Zuckerberg plans to spend. Meta shares lost $12 yesterday and were rising back to around 490 this morning. The speaker argues that if Zuckerberg shows profits can grow alongside spending, confidence in the AI trade will be restored, but a bigger spending plan without convincing earnings growth would be a recipe for disaster.

  Yahoo Finance·21/10, 14:33▼ METAMETAearningsAI investment
• Prediction: Nvidia’s Road to $1 Trillion in Annual Revenue Could Transform Its Stock

  Nvidia reported $96.22B in quarterly revenue, up 105.8% year over year, and guided to $108B for the current quarter, yet the stock is up only 15.08% year to date. The article says reaching $350 in 2027 would require a 63.5% gain from the $214.13 price, and its model's central estimate is $258.42. Key risks include investor worries about AI funding, $279B in supply commitments, and guidance that excludes China data center compute revenue. The author says this scenario depends on Vera Rubin ramping as the fastest launch in Nvidia's history, supply easing and markets not pricing in a funding scare, calling $350 'a stretch, but a credible one.'

  Yahoo Finance·21/10, 14:30▲ NVDANVDAearningsvaluation
• Ex-Google CEO got the job after a Burning Man trip with Larry Page. Now an ex’s intro could make him $20B on Anthropic

  Eric Schmidt was vetted by Sergey Brin and Larry Page and hired as Google's CEO after an unconventional interview process, with Brin citing Schmidt as the only CEO finalist who had gone to Burning Man. In 2011, Schmidt began dating Camilla Clark for three years; she later married Anthropic CEO Dario Amodei. In 2018, that connection led Schmidt to meet with her and her then-partner to discuss Anthropic, and he invested early and now owns about 1% of the company. According to the Financial Times, Anthropic could be valued at as much as $2 trillion in an IPO, which could make Schmidt's stake worth $20 billion, more than half his current net worth per Forbes, compared with the roughly $461 million valuation when he invested.

  Yahoo Finance·21/10, 14:30AnthropicIPOvaluation