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BUSINESS · OCT 3, 2026

S&P 500 Shiller CAPE Ratio Crosses Historic 40 Threshold

The S&P 500 Shiller CAPE ratio has exceeded 40 for the first time since the dot-com bubble, signaling potential market overvaluation.

The S&P 500 Shiller cyclically adjusted price-to-earnings (CAPE) ratio has crossed the 40 threshold, a valuation signal that has occurred only once before in the 155 years since the metric's inception in 1871. This level was previously reached in late 1999 and early 2000, shortly before the dot-com bubble burst led to a nearly 50% plunge in the S&P 500.

While a market decline is not guaranteed, historical data indicates that high CAPE ratios often precede steep sell-offs, including the 1929 crash and the 2022 bear market. The metric, developed by economist Robert J. Shiller, serves as a warning signal for stock market overvaluation.

To mitigate potential volatility, analysts recommend shifting investments toward stable companies with essential products or consistent dividend growth. Specifically, Johnson & Johnson, Procter & Gamble, and Enterprise Products Partners LP are highlighted as stocks capable of weathering a downturn due to their essential product lines, consistent dividend histories, and inflation-linked contracts.


Reported across 2 outlets
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Robert J. ShillerJohnson & JohnsonProcter & GambleEnterprise Products Partners LP

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