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Stock valuation metric sends warning signal for US economy

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  Published in Stocks and Investing on Monday, October 13th 2025 at 6:47 GMT by Newsweek

US Stock Market Valuation Hits a New Warning Threshold, Experts Say

A recent analysis by Newsweek highlights a sharp rise in a key valuation metric that many economists use to gauge the health of the U.S. economy. The Cyclically Adjusted Price‑to‑Earnings (CAPE) ratio—an indicator that smooths out short‑term earnings volatility by using a 10‑year earnings average—has climbed to 31.1, the highest level recorded in 30 years. According to the report, this spike places the market in a precarious position and raises concerns that a recession could be looming.

The CAPE Ratio in Context

The CAPE ratio, originally popularized by economist Robert Shiller, has long served as a barometer for the long‑term sustainability of stock prices. Historically, a ratio above 15–17 has been associated with lower returns and higher volatility, while values around 10 or below indicate undervaluation. In 2023, the metric reached 31.1, surpassing the 18‑year high of 30.8 observed in 2020. Even more telling, the ratio has now outpaced the 30‑year average of 16.6 by nearly 50 %.

This sharp increase is not an isolated statistical fluke. Newsweek’s piece points out that other valuation gauges—such as the price‑to‑book ratio, the dividend yield, and the earnings yield—are similarly distorted. While the dividend yield has fallen to a 30‑year low of 0.9 %, the price‑to‑book ratio has climbed to 3.4, signaling that stock prices have surged relative to the intrinsic value of the underlying assets. The earnings yield, which is the inverse of the price‑to‑earnings ratio, sits at 3.2 %, an all‑time low for a market that has historically delivered 6–8 % earnings yields.

What the Numbers Mean for Investors and the Economy

In the article, Newsweek cites a range of experts who interpret these signals. “When the market reaches a CAPE level that high, we’re looking at a potential “crash” environment,” says former Federal Reserve Chair Ben Bernanke, quoted in the report. Bernanke notes that historically, a CAPE ratio above 30 has coincided with a slowdown in GDP growth, a drop in corporate profits, and a steep decline in equity valuations. He also stresses that a high ratio does not guarantee a crash but increases the probability that investors will face a correction.

Other analysts point out that the current scenario has been amplified by policy decisions taken in the aftermath of the COVID‑19 pandemic. The Federal Reserve’s near‑zero interest rates and large‑scale asset purchases have lowered the cost of borrowing, enabling companies to raise capital at historically cheap rates. At the same time, the surge in consumer spending and the strong rebound of corporate earnings have inflated stock prices beyond what many fundamentals support. The article includes a chart sourced from the Federal Reserve Economic Data (FRED) database, illustrating the prolonged period of low rates that has coincided with the recent rise in valuation metrics.

Historical Precedents

The Newsweek piece also draws a detailed comparison to past episodes when the CAPE ratio was similarly high. It lists four major downturns—1929, 1937, 1964, and 2000—where the market saw a steep decline following an overheated valuation. Each of those periods ended in a recession, with the 2000–2002 dot‑com bust leading to a 13‑month decline in the Dow Jones Industrial Average. By showing a series of line charts, the article demonstrates how the current market sits at a comparable level to those pre‑recession highs.

In addition, the piece references research from the University of Chicago that links high CAPE ratios to lower expected returns over the next decade. While the study emphasizes that the relationship is not deterministic, it suggests that a high ratio increases the likelihood of significant drawdowns in equity prices, which can ripple through financial markets and dampen economic growth.

Potential Policy Implications

Given the warning sign, policymakers are urged to weigh the balance between supporting growth and preventing an overinflated market. The article cites suggestions from several economists who recommend tightening monetary policy, raising interest rates to bring borrowing costs closer to historical norms. Others argue that fiscal stimulus—particularly targeted investments in infrastructure and technology—could offset the negative impact of higher rates while preserving growth.

The piece concludes by highlighting that the CAPE ratio is just one indicator among many. Nonetheless, its unprecedented rise serves as a stark reminder that the market’s long‑term trajectory may be under threat if valuations do not adjust in tandem with fundamentals. As Newsweek points out, investors and policymakers alike must remain vigilant, watching for early signs that the market may be overvalued and poised for a correction.