Current valuation metrics are raising red flags for investors on Wall Street.
It seems that the financial community prefers Donald Trump’s leadership. During his first term, the stock market saw substantial increases, with the Dow Jones Industrial Average, S&P 500, and Nasdaq Composite all making impressive gains of 57%, 70%, and 142%, respectively.
Now, since he returned to office for a second term, there’s a noticeable uptick in this bullish market. From January 20, 2025, to February 10, 2026, we saw the Dow, S&P 500, and Nasdaq Composite rise by 15%, 16%, and 18%. Big returns have almost become standard.
While various factors contribute to the current bull market, some linked to Trump, there are significant challenges looming that could upset this momentum. One specific concern is especially troubling for many investors.
Stock market growth during Trump’s presidency
On a different note, it’s no secret that major stock indexes have a history of rising. Since March 1897, there have been 33 presidential terms, with 26 showing positive returns for either the Dow or S&P 500. Most presidents have facilitated economic growth during their terms, and Trump fits this mold.
But Trump’s early annual returns this term are notable—they rank among the best in over a century. So it’s worth diving into what’s driving this impressive growth.
It’s important to note that not all the factors boosting stocks can be pinned on the president himself. For instance, innovations in artificial intelligence and quantum computing, which began flourishing under Joe Biden’s administration, are significantly impacting the broader market. Analysts predict that AI could add a staggering $15.7 trillion to the global economy by 2030, and the potential economic impact of quantum computing could reach up to $850 billion by 2040. Investors seem quite taken by these trends.
Moreover, Trump wasn’t responsible for the six cuts to Federal Reserve interest rates since September 2024. Lower borrowing costs tend to encourage companies to invest, which in turn can lead to job creation and innovation.
However, the president’s policies undeniably influenced the rise in stock prices. His Tax Cuts and Jobs Act, passed in December 2017, slashed the corporate income tax rate from 35% to 21%, marking the lowest peak rate since 1939.
The idea behind lowering corporate taxes was to spur job creation and innovation, but the excess profits have led to unprecedented stock buybacks. In fact, S&P 500 companies are on track to reach a record amount of $1 trillion in share buybacks by 2025. This move can make companies more appealing to investors focused on value.
Trump’s trade policies have created quite a stir in terms of their impact on the U.S. economy and Wall Street. Nevertheless, they’ve managed to attract significant investments from certain companies.
The bull market seems quite robust, yet historical valuation measures tell a somewhat different story.
History suggests trouble for the Trump bull market
Now, don’t misunderstand me—every bull market faces challenges. For instance, internal divisions within the Federal Open Market Committee might complicate the actions of the Federal Reserve, potentially turning it into a liability for the stock market.
Yet, it’s possible that an even larger historical challenge could disrupt the bullish trend, and it has to do with stock valuations.
It’s essential to understand that value can be subjective. What one investor perceives as overvalued, another might view as a bargain. This subjectivity contributes to the unpredictable swings in the Dow, S&P 500, and Nasdaq Composite.
That said, the Shiller price-to-earnings (P/E) ratio for the S&P 500 offers a way to clarify things. Often referred to as the CAPE ratio, this measure factors in average inflation-adjusted earnings over a decade, rather than just the past year. This perspective seeks to avoid the pitfalls of short-term shocks, like those caused by the COVID-19 pandemic.
Introduced in the late 1980s, the Shiller P/E ratio has been analyzed as far back as January 1871. Historically, the average multiple for this ratio rests at around 17.34.
The S&P 500 Shiller PE ratio is currently at one of its highest levels ever. The only other time it was higher was during the dot-com bubble.
For the last three decades, the ratio has often exceeded this long-term average. Factors like the internet have made information more accessible, which, combined with lower interest rates, has led retail investors to seek out higher-risk growth stocks.
However, as of February 10, the S&P 500’s CAPE ratio stood at 40.36—making it the second highest in history, only surpassed by the dot-com bubble that peaked at 44.19 in December 1999.
Since 1871, the Shiller P/E has gone over 30 only six times, including now. Historically, after these spikes, the major indexes have experienced declines ranging from 20% to 89% in value. While it’s unlikely we’ll see a drop akin to the Great Depression, history has shown that high valuations often precede recessions.
While the CAPE ratio isn’t necessarily a market-timing tool, its historical accuracy in signaling the end of bull markets cannot be ignored. If past patterns hold true, we could soon witness a challenging phase for the current Trump bull market.
