How US-Iran Tensions Are Impacting the Stock Market

US-Iran tensions, including threats to close the Strait of Hormuz, have heightened stock market volatility, creating opportunities for value investors.
Tensions between the United States and Iran are rattling global markets, according to recent analysis. Ongoing instability tied to the Strait of Hormuz—a critical chokepoint controlling 20% of the world’s oil supply—has intensified investors' nerves and created significant fluctuations in stock prices. This surge in volatility is particularly notable for so-called value investors, who often thrive when the market reacts emotionally to current events.
Market Metrics in 2026
The year 2026 has started on a rocky note. The S&P 500 is down around 5% year-to-date, and the NASDAQ has seen a 6% drop. Even more striking, the "Magnificent 7"—the top tech-heavy stocks like Apple, Amazon, Meta, Microsoft, and Google—have declined by 11%. Last Friday alone, the NASDAQ dropped 2%, which likely prompted many investors to reconsider their strategies as they reviewed their portfolios over the weekend.
What’s Driving the Volatility?
A significant part of this instability stems from geopolitics. The U.S. recently issued a worldwide travel alert for its citizens, while President Trump threatened to strike Iran’s power supply unless the country reopened the Strait of Hormuz within 48 hours. This geopolitical tension, combined with Iran’s counter-threat to close the Strait entirely, sent shockwaves through the market.
On Monday, panic ensued, and stocks dipped 1% before the markets even opened. Later, Trump announced a temporary five-day ceasefire, sending the market upward, only for Iran to deny any negotiations, leading to further uncertainty. This unpredictability underscores why short-term market predictions often fail. As Warren Buffett has long emphasized, the market exists to serve informed investors—not to guide their every move.
Lessons for Value Investors
For disciplined value investors, market reactions like these represent opportunities to buy strong companies at a discount. Emotional reactions frequently lead to overcorrections—either overly pessimistic or overly optimistic valuations. By tuning out day-to-day noise and focusing on long-term potential, investors can better navigate periods of instability. This philosophy revolves around a few key principles:
- Avoid checking brokerage accounts frequently to prevent emotional decision-making.
- Stick to foundational approaches like dollar-cost averaging into low-cost ETFs.
- Identify undervalued companies based on long-term growth potential.
Home Depot: A Case Study
Home Depot, currently trading near its 52-week low, exemplifies how broader economic factors can dampen short-term valuations. The stock is priced at $331, just above its 52-week low of $326. Given its all-time high of $439 roughly a year ago, this represents a significant pullback.
Why Is Home Depot Down?
The sluggish housing market plays a key role. Mortgage rates above 6% are diminishing home sales, which in turn impacts large-scale home renovations. Analysts suggest that discretionary spending has also softened as consumers prioritize essential purchases over costly remodels. Add weaker earnings reports, rising operating costs, and even a quieter-than-usual storm season, and the short-term outlook for Home Depot appears challenging.
Long-Term Perspective
Despite these roadblocks, Home Depot remains a dominant player in its industry. The company's returns on capital are strong, and its dividend yield of 2.8% underscores its stability. However, critics worry that its current cash flow allocation, with $9 billion dedicated to dividends out of $14 billion in free cash flow, leaves little room for share buybacks during a market downturn. If the housing market recovers and consumer demand rebounds, Home Depot could see pent-up demand amplify its growth trajectory.
Home Depot Key Metrics:
| Metric | Figure |
|---|---|
| Market Cap | $330 billion |
| Free Cash Flow (annual) | $14 billion |
| Dividend Yield | 2.8% |
| Price-to-Earnings Ratio | 23x |
Visa: Another Opportunity?
Visa, the world’s largest payment processor, is another big name trading near its 52-week low. Currently priced at $299.48, Visa's valuation reflects lingering uncertainties rather than fundamental weaknesses.
What’s Worrying Investors?
Visa faces several headwinds. Government discussions around capping credit card interest rates have made investors question whether the resulting reduction in consumer spending will affect the company's revenues. Moreover, lawsuits over merchant fees and the potential for disruption from technologies like AI-powered payments and stablecoins have spurred Wall Street anxiety.
Resilient Business Model
Despite these concerns, Visa continues to demonstrate impressive financial health. With $41.4 billion in revenue and $20 billion in annual profits, its financial metrics remain robust. The company boasts profit margins exceeding 50%, signaling operational efficiency. Importantly, Visa’s consistent revenue growth—averaging 11–15% annually over three, five, and ten years—suggests strong future potential even amidst potential industry shake-ups.
Visa Key Metrics:
| Metric | Figure |
|---|---|
| Market Cap | $650 billion |
| Revenue (Annually) | $41.4 billion |
| Profit Margin | Over 50% |
| Price-to-Cash Flow Ratio | 34x (5-Year Avg) |
Takeaways for Value Investors
- Focus on Fundamentals: Companies like Home Depot and Visa remain fundamentally strong despite short-term challenges.
- Watch the Noise: Geopolitical events, such as US-Iran tensions, introduce short-term volatility, but they rarely dictate long-term investor returns.
- Analyze Value: Use metrics like price-to-earnings and cash flow ratios to assess whether a stock is priced attractively compared to its growth potential.
- Consider the Horizon: Allocating capital towards stable, well-managed companies can yield significant returns over 10, 20, or even 30 years.
Conclusion
The stock market's recent turmoil, fueled by US-Iran tensions, underpins the importance of separating noise from opportunity. Companies like Home Depot and Visa, trading near 52-week lows, offer potential investments for those prioritizing long-term growth over short-term speculation. As always, informed, disciplined investing remains the best strategy for navigating uncertain times.
Staff Writer
James covers financial markets, cryptocurrency, and economic policy.
Comments
Loading comments…



