{
  "id": 16910847,
  "title": "The S&P 500 Is Approaching a Valuation Not Seen Since the Peak of the Dot-Com Bubble, and History Suggests a Crash Could Follow",
  "url": "https://urgent.news/2026/10/28/the-s-p-500-is-approaching-a-valuation-not-seen-since-the-peak-of-the",
  "topic": "finance",
  "section": "Finance & Markets",
  "published": "2026-10-28T14:28:00.000Z",
  "source": {
    "name": "Motley Fool",
    "slug": "motley-fool",
    "url": "https://www.fool.com/investing/2026/10/28/sp-500-valuation-peak-dot-com-bubble-crash-follow/?source=iedfolrf0000001"
  },
  "original_language": "en",
  "account": "The S&P 500 (^GSPC +0.16%) index has surged more than 100% since the 2022 market bottom, powered by robust performance in the technology sector, particularly from firms driving the artificial intelligence (AI) revolution. The index's Shiller cyclically adjusted price-to-earnings (CAPE) ratio recently reached 41, close to its historical high of 44.2 during the dot-com bubble's peak in 2000. The CAPE ratio, calculated using a 10-year average of earnings adjusted for inflation, serves as a valuable valuation indicator. While the S&P 500 plummeted 49% following the dot-com bubble's collapse, a similar downturn this time seems unlikely; however, mounting risks to the current bull market are increasingly concerning.\n\nRising geopolitical tensions, including a conflict between Iran and the U.S. that has closed the Strait of Hormuz, disrupting oil supplies and driving prices up by over 80% since early 2026, add to market volatility. Simultaneously, the ongoing conflicts in Saudi Arabia and Yemen, as well as between Ukraine and Russia, further destabilize energy markets. These disruptions have pushed West Texas Intermediate crude oil prices to over $103 per barrel, significantly impacting American consumers through higher prices at grocery stores and retail outlets.\n\nThe Consumer Price Index (CPI) for September showed an annualized inflation rate of 3.7%, well above the Federal Reserve's 2% target, with the energy component ballooning by 20.4%. In response, the Federal Reserve raised interest rates by 25 basis points in the previous month, with more hikes likely if inflation persists. Higher interest rates generally hinder stocks by pressuring consumer and business spending, potentially leading to weaker corporate earnings and long-term stock price declines. This has already manifested in the S&P 500's 20% bear-market decline during the last rate-hiking cycle (March 2022 to August 2023).\n\nAdditionally, the AI infrastructure boom, fueled by neocloud companies like CoreWeave, faces mounting borrowing costs due to rising interest rates. Equity investors are exiting these sectors, causing stock prices to tumble. For instance, CoreWeave stock has dropped over 70% since its peak, and AI giants such as Anthropic and OpenAI are experiencing valuation cuts, with Anthropic potentially facing a $500 billion reduction. This nervousness has trickled into public markets, with the iShares Semiconductor ETF down 27% from its peak, highlighting the challenges facing chip stocks central to the AI boom.\n\nAlthough the S&P 500 is currently down only 2.5% from its peak, the combination of rich valuations and growing headwinds suggests further downside. Historically, the S&P 500 has experienced a 10% decline every 18 months on average, and 20% declines occur roughly every six years. Despite this, the index has delivered a compound annual return of 10.7% since its inception in 1957, underscoring the importance of staying invested. Historical data shows that buying stocks during volatile periods has proven profitable over the long term. Therefore, maintaining a long-term investment strategy remains crucial, even when facing uncertainties and turbulence in the market.",
  "summary": "Investors are increasingly nervous about rising interest rates and the sustainability of the artificial intelligence infrastructure spending boom.",
  "key_points": [
    "S&P 500 CAPE ratio near 41, high of 44.2 during 2000 dot-com bubble",
    "Geopolitical tensions and oil price surge add market volatility risks",
    "Federal Reserve rate hikes and AI sector borrowing costs signal potential downturn"
  ],
  "editors_take": null,
  "illustration": null,
  "coverage": {
    "outlets": 1,
    "also_reported_by": []
  },
  "ai_generated": true,
  "disclaimer": "Summaries, key points and the editor’s take are written by software from other outlets’ reporting and may contain errors — always check the linked original."
}