Dow Outperforms Nasdaq: Is a Bearish Signal for U.S. Stocks Approaching?

Keywords: U.S. stocks, bearish signal, Dow Jones Industrial Average, Nasdaq Composite Index, valuation bubble, market rotation, artificial intelligence

Introduction

Against the backdrop of U.S. stocks fluctuating at high levels, the market appears prosperous on the surface but is turbulent underneath. A recent rare signal worth noting is that the Dow Jones Industrial Average rose 0.5% in just seven trading days, while the tech-heavy Nasdaq Composite Index fell 5.0%, forming a clear divergence of 5.5 percentage points. Historical data shows that such a magnitude of divergence is extremely uncommon, occurring in only about 1% of trading days since 1971, and it often accompanies bull market peaks or early bear market phases.

1. Why Does Index Divergence Have Warning Significance?

The structural difference between the Dow and Nasdaq essentially reflects a repricing of risk appetite by capital. The Dow components lean more toward traditional blue chips, financial, industrial, and consumer sectors, with relatively mild volatility; the Nasdaq is highly concentrated in tech growth stocks, especially those sensitive to valuations and highly dependent on liquidity. When market risk appetite declines, capital typically exits high-valuation assets first, with the Nasdaq often bearing the brunt.

This also means that a huge divergence between indices is not simply 'sector rotation' as in a normal bull market, where gains and losses switch mildly; the stark disparity is more like institutional funds actively lowering portfolio beta and shifting to defensive assets. This behavior usually occurs when there are doubts about economic outlooks, earnings expectations, or liquidity conditions.

2. What Do Historical Samples Reveal?

Statistics from MarketWatch columnist Mark Hulbert show that when the Dow and Nasdaq experienced similar divergences, the probability of the U.S. stock market entering a bear market within three months was as high as 66.9%, far above the average bear market probability of 24.8% since 1971. Notably, before the 2000 dot-com bubble burst, the Nasdaq showed similar or even larger spreads multiple times in the ten trading days before the peak, after which the Nasdaq cumulative drop in the bear market approached 80%.

Such historical samples cannot directly deduce that 'this round must be a peak,' but they provide an important framework: market tops are often not triggered by a single event but formed by resonance imbalances in valuations, earnings, liquidity, and sentiment. When high valuations coincide with AI concept hype, any disturbance can magnify a retreat.

3. Current Risks Are Not Just a 'Correction'

Viewing the recent weakness in the Nasdaq as a healthy adjustment may underestimate the risks. The problem is that the core narrative supporting high U.S. stock valuations—the long-term profit reassessment brought by AI—has already been fully priced in by the market. Once the earnings performance of related companies falls short of expectations, valuation compression will occur before earnings revisions. Meanwhile, high interest rates and elevated funding costs will further suppress growth stock valuations.

More importantly, the breadth of the U.S. stock rally is not ideal. If the index rise relies mainly on a few large tech stocks while most sectors do not follow, the market already shows a fragile structure of 'narrow leadership.' This structure usually means that once the leading stocks lose momentum, the index may quickly stall.

Conclusion

The divergence of a strong Dow and weak Nasdaq may not be the final verdict of a bear market, but it is clearly not an ordinary volatility signal that can be ignored. For investors, what truly matters is not 'whether we have entered a bear market' but whether the market's internal structure still has healthy breadth and sustained earnings support. Current signs indicate that risks in the U.S. stock market are gradually evolving from local valuation pressure to systemic repricing. In other words, after the frenzy, the market is entering a phase where risks must be reassessed.