Companies developing advanced semiconductors, building data centers, and creating artificial intelligence (AI) applications are attracting historic levels of investment capital. However, some valuation indicators suggest that investors might be getting carried away.
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breaking2 Warren Buffett Artificial Intelligence (AI) Stocks That Could Soar Even if the Stock Market Crashes in 2027
Companies developing advanced semiconductors, building data centers, and creating artificial intelligence (AI) applications are attracting historic levels of investment capital. However, some valuation indicators suggest that investors…
Yahoo Finance
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Oct 29, 2026 at 1:20 AM UTC · Updated 5 giờ trước · 5 phút đọc

The Shiller cyclically adjusted price-to-earnings (CAPE) ratio, which compares stock prices to average inflation-adjusted earnings over the previous 10 years, currently stands around 41. For perspective, its historical average is approximately 17, and the last time the CAPE ratio consistently exceeded 40 was during the dot-com bubble.
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Meanwhile, the Buffett indicator, which measures the total value of the U.S. stock market relative to gross domestic product (GDP), is hovering around 230%. Warren Buffett warns that investors are in dangerous territory when this ratio approaches 200%.
While neither metric guarantees an imminent crash, both suggest that stock valuations are historically expensive. Fortunately, investors don't necessarily need to abandon growth stocks if the market experiences a downturn.
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