150 Years of Market History Predicts Trump’s Bull Market Is Almost Over

6 hours ago 1

Rich Duprey

Wed, May 20, 2026 astatine 9:55 AM CDT 5 min read

Quick Read

  • Nvidia (NVDA), Microsoft (MSFT), and Apple (AAPL) are high-margin exertion companies that defenders reason merit premium valuations compared to industrial-era firms, though adjacent tech-bullish Goldman Sachs projects conscionable 3% annualized S&P 500 returns implicit the adjacent decennary if valuations enactment adjacent existent levels.

  • The S&P 500’s CAPE ratio astatine 41.35 is the second-highest successful 150+ years of marketplace history, 2nd lone to the November 1999 dot-com bubble peak, and historically elevated readings similar those successful October 1929 and December 2021 person preceded important marketplace declines and extended periods of anemic returns.

  • The expert who called NVIDIA successful 2010 conscionable named his apical 10 AI stocks. Get them present FREE.

President Donald Trump’s 2nd word has delivered a banal marketplace rally fewer investors expected would past the turbulence thrown astatine it. Tariff battles rattled planetary trade. The alleged “SaaS-pocalypse” crushed once-highflying bundle stocks. Treasury yields climbed supra 5% much than once. Yet each pullback yet gave mode to different rebound, pushing the S&P 500 to caller grounds highs.

That resilience has been remarkable, but what if the market’s biggest hazard isn’t tariffs, inflation, oregon adjacent geopolitics -- but elemental valuation math?

More than 150 years of marketplace past suggests that hazard is becoming hard to ignore.

The expert who called NVIDIA successful 2010 conscionable named his apical 10 stocks. Get them present FREE.

This Valuation Ratio Is Flashing a Rare Warning

The informing motion comes from the cyclically adjusted price-to-earnings ratio, amended known arsenic the CAPE ratio. The metric was popularized by Nobel Prize-winning economist Robert Shiller, though its roots hint backmost to value-investing pioneer Benjamin Graham.

Unlike a modular P/E ratio that compares banal prices to 1 twelvemonth of earnings, the CAPE ratio uses inflation-adjusted mean net implicit the anterior 10 years. The thought is simple: creaseless retired impermanent booms and recessions to get a clearer representation of whether stocks are costly oregon cheap.

Shiller backtested the metric utilizing marketplace information stretching backmost to the 1870s. The semipermanent mean CAPE ratio for the S&P sits astir 17.

Today, the CAPE ratio stands astatine 41.35, the second-highest speechmaking successful recorded marketplace history. Only November 1999’s dot-com bubble highest was higher astatine 44.19.

For perspective:

Period

CAPE Ratio

Historical average

~17

October 1929

32.6

December 2021

38.6

May 2026

41.35

That December 2021 speechmaking matters due to the fact that the marketplace peaked conscionable days aboriginal connected Jan. 3, 2022. Over the adjacent six months, the S&P 500 fell 21% -- the worst commencement to a twelvemonth since 1970.

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