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S&P 500 Sky-High: Is a Crash Coming?
5 Jun
Summary
- Inflation reached a three-year high in April due to oil prices.
- Economic growth in Q1 was below average, impacted by tariffs.
- S&P 500's valuation is highest since the dot-com crash.

The stock market has experienced a significant rally, with the S&P 500 advancing 20% and closing higher for nine consecutive weeks. However, recent economic data suggests this positive trend may not continue.
Inflation reached a three-year high in April, largely due to elevated oil prices. This surge in the Personal Consumption Expenditure (PCE) Price Index, the Federal Reserve's preferred inflation gauge, recorded a 3.8% year-on-year increase. This development occurs alongside a slowdown in economic growth, with first-quarter GDP increasing by only 1.6% annually, below the 10-year average.
These factors could prompt the Federal Reserve to raise interest rates, creating additional headwinds for economic expansion. Historically, a high inflation rate coupled with weak economic growth has negatively impacted corporate earnings, which are a primary driver of stock prices.
Furthermore, the S&P 500's valuation, measured by the cyclically adjusted price-to-earnings (CAPE) ratio, has reached its highest point since the dot-com crash in September 2000. A CAPE ratio of 39.6 in May indicates the market has been this expensive only about 3% of the time since 1957.
Past instances of such high valuations have typically preceded substantial market declines. While current expanding profit margins and anticipated future earnings growth driven by artificial intelligence offer some optimism, the S&P 500 remains historically expensive and vulnerable. Investors are advised to focus on reasonably priced stocks with strong long-term earnings potential.