S&P 500 & Oil Prices: Why the Correlation Is Unreliable | MarketWatch

The conventional wisdom linking stock market performance to oil prices is, at best, unreliable. For weeks, the narrative has centered on how fluctuations in crude oil – spurred by geopolitical tensions, particularly in the Middle East – dictate investor sentiment. But a closer look, and the perspective of some veteran analysts, suggests the relationship is far more tenuous than commonly believed. The market’s reaction to the Iran conflict, and oil prices specifically, may be less a cause-and-effect scenario and more a case of convenient explanation.

A Shifting Correlation

Fundstrat’s Tom Lee, as reported by MarketWatch, argues that rising oil prices aren’t necessarily a headwind for the U.S. Economy, and may even provide a boost. This counterintuitive stance stems from the fact that the United States has grow a net exporter of oil. Lee’s views were echoed, surprisingly, by former President Trump, who recently noted the benefits of higher oil prices for a nation that now sells more oil than it consumes. TheStreet reported on March 12, 2026, that Lee believes the S&P 500 could climb to 7300 before a potential 20% bear market emerges, a forecast seemingly unperturbed by oil price volatility.

Still, the historical data reveals a surprisingly unstable correlation between the S&P 500 and crude oil prices. Analysis of the past 15 years shows the correlation coefficient fluctuating wildly, sometimes above 50% and other times below. This inconsistency makes it difficult to draw definitive conclusions about the impact of oil prices on the stock market. The U.S. Became a net exporter of oil in September 2019, but this shift hasn’t resulted in a consistently high correlation, as one might expect. In fact, the correlation has been steadily declining since 2019, currently hovering near zero.

The U.S. As an Oil Exporter: A Complicated Picture

The U.S. Energy Information Administration (EIA) data confirms the net exporter status, beginning in September 2019. But the expectation that this would lead to a predictable, strengthening correlation between stock performance and oil prices hasn’t materialized. The relationship remains unpredictable, suggesting other factors are far more influential in driving market movements. This challenges the long-held assumption that rising oil prices automatically translate to negative stock market returns.

Beyond Oil: The Iran Conflict and Market Dynamics

The current focus on the Iran conflict as a driver of market volatility may be misplaced. While geopolitical events undoubtedly influence investor sentiment, attributing every market move to oil prices oversimplifies a complex situation. Predicting the duration of the conflict and the subsequent impact on oil supply requires navigating a web of uncertainties, including potential responses like releases from the U.S. Strategic Petroleum Reserve. Tom Lee, speaking on CNBC’s Power Lunch, recently discussed his S&P 500 price target and the market’s potential for further gains, seemingly downplaying the significance of the Iran crisis.

Growth Stocks and Relative Performance

Interestingly, recent market data suggests growth stocks continue to outperform even amidst geopolitical uncertainty. Another recent appearance by Tom Lee highlighted this trend, noting the relative strength of growth stocks compared to broader market indices. This suggests investors are focusing on company-specific fundamentals and long-term growth prospects, rather than reacting solely to short-term oil price fluctuations. For example, the report noted that GRNJ fell 0.76% vs. A decline of 1.67% for the Russell 2500, a relative outperformance of 91 basis points.

The Difficulty of Profitable Prediction

Even if a predictable correlation between stocks and oil existed, translating it into a profitable trading strategy would be exceedingly difficult. Accurately forecasting the length of the Iran conflict, the impact on oil supply, and the market’s reaction requires a level of foresight that is simply unattainable. The inherent uncertainties involved make it a risky proposition for investors.

The bottom line, as Mark Hulbert concludes, is that basing equity allocation decisions on predictions about oil prices is a flawed strategy. The market is driven by a multitude of factors, and the relationship between oil prices and stock performance is far too unstable to provide a reliable signal. Investors are better served focusing on fundamental analysis, long-term growth prospects, and a diversified portfolio.

Looking Ahead: Focus on Fundamentals

The current environment underscores the importance of a disciplined investment approach. Rather than attempting to time the market based on oil price movements, investors should prioritize companies with strong fundamentals, sustainable competitive advantages, and a clear path to long-term growth. Monitoring geopolitical events is prudent, but attributing every market fluctuation to a single factor – like oil prices – is a recipe for misallocation and potential losses. The focus should remain on the underlying health of the economy and the long-term prospects of individual businesses.